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dart / sdk / 40cfccda6fe08065fedcf88bfa40e896116c8f8c / . / runtime / vm / service.cc
blob: b207114378ed7bac42be528b622f20f7a2f61d0a [file] [log] [blame]
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/service.h"
#include <memory>
#include <utility>
#include "include/dart_api.h"
#include "include/dart_native_api.h"
#include "platform/globals.h"
#include "platform/unicode.h"
#include "platform/utils.h"
#include "vm/base64.h"
#include "vm/canonical_tables.h"
#include "vm/compiler/jit/compiler.h"
#include "vm/cpu.h"
#include "vm/dart_api_impl.h"
#include "vm/dart_api_message.h"
#include "vm/dart_api_state.h"
#include "vm/dart_entry.h"
#include "vm/debugger.h"
#include "vm/heap/safepoint.h"
#include "vm/isolate.h"
#include "vm/kernel_isolate.h"
#include "vm/lockers.h"
#include "vm/malloc_hooks.h"
#include "vm/message.h"
#include "vm/message_handler.h"
#include "vm/native_arguments.h"
#include "vm/native_entry.h"
#include "vm/native_symbol.h"
#include "vm/object.h"
#include "vm/object_graph.h"
#include "vm/object_id_ring.h"
#include "vm/object_store.h"
#include "vm/parser.h"
#include "vm/port.h"
#include "vm/profiler.h"
#include "vm/profiler_service.h"
#include "vm/resolver.h"
#include "vm/reusable_handles.h"
#include "vm/service_event.h"
#include "vm/service_isolate.h"
#include "vm/source_report.h"
#include "vm/stack_frame.h"
#include "vm/symbols.h"
#include "vm/timeline.h"
#include "vm/version.h"
namespace dart {
#define Z (T->zone())
DECLARE_FLAG(bool, trace_service);
DECLARE_FLAG(bool, trace_service_pause_events);
DECLARE_FLAG(bool, profile_vm);
DEFINE_FLAG(charp,
vm_name,
"vm",
"The default name of this vm as reported by the VM service "
"protocol");
DEFINE_FLAG(bool,
warn_on_pause_with_no_debugger,
false,
"Print a message when an isolate is paused but there is no "
"debugger attached.");
#ifndef PRODUCT
// The name of this of this vm as reported by the VM service protocol.
static char* vm_name = NULL;
static const char* GetVMName() {
if (vm_name == NULL) {
return FLAG_vm_name;
}
return vm_name;
}
ServiceIdZone::ServiceIdZone() {}
ServiceIdZone::~ServiceIdZone() {}
RingServiceIdZone::RingServiceIdZone()
: ring_(NULL), policy_(ObjectIdRing::kAllocateId) {}
RingServiceIdZone::~RingServiceIdZone() {}
void RingServiceIdZone::Init(ObjectIdRing* ring,
ObjectIdRing::IdPolicy policy) {
ring_ = ring;
policy_ = policy;
}
char* RingServiceIdZone::GetServiceId(const Object& obj) {
ASSERT(ring_ != NULL);
Thread* thread = Thread::Current();
Zone* zone = thread->zone();
ASSERT(zone != NULL);
const intptr_t id = ring_->GetIdForObject(obj.raw(), policy_);
return zone->PrintToString("objects/%" Pd "", id);
}
// TODO(johnmccutchan): Unify embedder service handler lists and their APIs.
EmbedderServiceHandler* Service::isolate_service_handler_head_ = NULL;
EmbedderServiceHandler* Service::root_service_handler_head_ = NULL;
struct ServiceMethodDescriptor;
const ServiceMethodDescriptor* FindMethod(const char* method_name);
// Support for streams defined in embedders.
Dart_ServiceStreamListenCallback Service::stream_listen_callback_ = NULL;
Dart_ServiceStreamCancelCallback Service::stream_cancel_callback_ = NULL;
Dart_GetVMServiceAssetsArchive Service::get_service_assets_callback_ = NULL;
Dart_EmbedderInformationCallback Service::embedder_information_callback_ = NULL;
// These are the set of streams known to the core VM.
StreamInfo Service::vm_stream("VM");
StreamInfo Service::isolate_stream("Isolate");
StreamInfo Service::debug_stream("Debug");
StreamInfo Service::gc_stream("GC");
StreamInfo Service::echo_stream("_Echo");
StreamInfo Service::heapsnapshot_stream("HeapSnapshot");
StreamInfo Service::logging_stream("Logging");
StreamInfo Service::extension_stream("Extension");
StreamInfo Service::timeline_stream("Timeline");
const uint8_t* Service::dart_library_kernel_ = NULL;
intptr_t Service::dart_library_kernel_len_ = 0;
static StreamInfo* streams_[] = {
&Service::vm_stream, &Service::isolate_stream,
&Service::debug_stream, &Service::gc_stream,
&Service::echo_stream, &Service::heapsnapshot_stream,
&Service::logging_stream, &Service::extension_stream,
&Service::timeline_stream};
bool Service::ListenStream(const char* stream_id) {
if (FLAG_trace_service) {
OS::PrintErr("vm-service: starting stream '%s'\n", stream_id);
}
intptr_t num_streams = sizeof(streams_) / sizeof(streams_[0]);
for (intptr_t i = 0; i < num_streams; i++) {
if (strcmp(stream_id, streams_[i]->id()) == 0) {
streams_[i]->set_enabled(true);
return true;
}
}
if (stream_listen_callback_ != nullptr) {
Thread* T = Thread::Current();
TransitionVMToNative transition(T);
return (*stream_listen_callback_)(stream_id);
}
return false;
}
void Service::CancelStream(const char* stream_id) {
if (FLAG_trace_service) {
OS::PrintErr("vm-service: stopping stream '%s'\n", stream_id);
}
intptr_t num_streams = sizeof(streams_) / sizeof(streams_[0]);
for (intptr_t i = 0; i < num_streams; i++) {
if (strcmp(stream_id, streams_[i]->id()) == 0) {
streams_[i]->set_enabled(false);
return;
}
}
if (stream_cancel_callback_ != nullptr) {
Thread* T = Thread::Current();
TransitionVMToNative transition(T);
return (*stream_cancel_callback_)(stream_id);
}
}
ObjectPtr Service::RequestAssets() {
Thread* T = Thread::Current();
Object& object = Object::Handle();
{
Api::Scope api_scope(T);
Dart_Handle handle;
{
TransitionVMToNative transition(T);
if (get_service_assets_callback_ == NULL) {
return Object::null();
}
handle = get_service_assets_callback_();
if (Dart_IsError(handle)) {
Dart_PropagateError(handle);
}
}
object = Api::UnwrapHandle(handle);
}
if (object.IsNull()) {
return Object::null();
}
if (!object.IsTypedData()) {
const String& error_message = String::Handle(
String::New("An implementation of Dart_GetVMServiceAssetsArchive "
"should return a Uint8Array or null."));
const Error& error = Error::Handle(ApiError::New(error_message));
Exceptions::PropagateError(error);
return Object::null();
}
const TypedData& typed_data = TypedData::Cast(object);
if (typed_data.ElementSizeInBytes() != 1) {
const String& error_message = String::Handle(
String::New("An implementation of Dart_GetVMServiceAssetsArchive "
"should return a Uint8Array or null."));
const Error& error = Error::Handle(ApiError::New(error_message));
Exceptions::PropagateError(error);
return Object::null();
}
return object.raw();
}
static void PrintMissingParamError(JSONStream* js, const char* param) {
js->PrintError(kInvalidParams, "%s expects the '%s' parameter", js->method(),
param);
}
static void PrintInvalidParamError(JSONStream* js, const char* param) {
js->PrintError(kInvalidParams, "%s: invalid '%s' parameter: %s", js->method(),
param, js->LookupParam(param));
}
static void PrintUnrecognizedMethodError(JSONStream* js) {
js->PrintError(kMethodNotFound, NULL);
}
static void PrintSuccess(JSONStream* js) {
JSONObject jsobj(js);
jsobj.AddProperty("type", "Success");
}
static bool CheckDebuggerDisabled(Thread* thread, JSONStream* js) {
#if defined(DART_PRECOMPILED_RUNTIME)
js->PrintError(kFeatureDisabled, "Debugger is disabled in AOT mode.");
return true;
#else
if (thread->isolate()->debugger() == NULL) {
js->PrintError(kFeatureDisabled, "Debugger is disabled.");
return true;
}
return false;
#endif
}
static bool CheckCompilerDisabled(Thread* thread, JSONStream* js) {
#if defined(DART_PRECOMPILED_RUNTIME)
js->PrintError(kFeatureDisabled, "Compiler is disabled in AOT mode.");
return true;
#else
return false;
#endif
}
static bool CheckProfilerDisabled(Thread* thread, JSONStream* js) {
if (!FLAG_profiler) {
js->PrintError(kFeatureDisabled, "Profiler is disabled.");
return true;
}
return false;
}
static bool CheckNativeAllocationProfilerDisabled(Thread* thread,
JSONStream* js) {
if (CheckProfilerDisabled(thread, js)) {
return true;
}
if (!FLAG_profiler_native_memory) {
js->PrintError(kFeatureDisabled, "Native memory profiling is disabled.");
return true;
}
return false;
}
static bool GetIntegerId(const char* s, intptr_t* id, int base = 10) {
if ((s == NULL) || (*s == '\0')) {
// Empty string.
return false;
}
if (id == NULL) {
// No id pointer.
return false;
}
intptr_t r = 0;
char* end_ptr = NULL;
#if defined(ARCH_IS_32_BIT)
r = strtol(s, &end_ptr, base);
#else
r = strtoll(s, &end_ptr, base);
#endif
if (end_ptr == s) {
// String was not advanced at all, cannot be valid.
return false;
}
*id = r;
return true;
}
static bool GetUnsignedIntegerId(const char* s, uintptr_t* id, int base = 10) {
if ((s == NULL) || (*s == '\0')) {
// Empty string.
return false;
}
if (id == NULL) {
// No id pointer.
return false;
}
uintptr_t r = 0;
char* end_ptr = NULL;
#if defined(ARCH_IS_32_BIT)
r = strtoul(s, &end_ptr, base);
#else
r = strtoull(s, &end_ptr, base);
#endif
if (end_ptr == s) {
// String was not advanced at all, cannot be valid.
return false;
}
*id = r;
return true;
}
static bool GetInteger64Id(const char* s, int64_t* id, int base = 10) {
if ((s == NULL) || (*s == '\0')) {
// Empty string.
return false;
}
if (id == NULL) {
// No id pointer.
return false;
}
int64_t r = 0;
char* end_ptr = NULL;
r = strtoll(s, &end_ptr, base);
if (end_ptr == s) {
// String was not advanced at all, cannot be valid.
return false;
}
*id = r;
return true;
}
// Scans the string until the '-' character. Returns pointer to string
// at '-' character. Returns NULL if not found.
static const char* ScanUntilDash(const char* s) {
if ((s == NULL) || (*s == '\0')) {
// Empty string.
return NULL;
}
while (*s != '\0') {
if (*s == '-') {
return s;
}
s++;
}
return NULL;
}
static bool GetCodeId(const char* s, int64_t* timestamp, uword* address) {
if ((s == NULL) || (*s == '\0')) {
// Empty string.
return false;
}
if ((timestamp == NULL) || (address == NULL)) {
// Bad arguments.
return false;
}
// Extract the timestamp.
if (!GetInteger64Id(s, timestamp, 16) || (*timestamp < 0)) {
return false;
}
s = ScanUntilDash(s);
if (s == NULL) {
return false;
}
// Skip the dash.
s++;
// Extract the PC.
if (!GetUnsignedIntegerId(s, address, 16)) {
return false;
}
return true;
}
// Verifies that |s| begins with |prefix| and then calls |GetIntegerId| on
// the remainder of |s|.
static bool GetPrefixedIntegerId(const char* s,
const char* prefix,
intptr_t* service_id) {
if (s == NULL) {
return false;
}
ASSERT(prefix != NULL);
const intptr_t kInputLen = strlen(s);
const intptr_t kPrefixLen = strlen(prefix);
ASSERT(kPrefixLen > 0);
if (kInputLen <= kPrefixLen) {
return false;
}
if (strncmp(s, prefix, kPrefixLen) != 0) {
return false;
}
// Prefix satisfied. Move forward.
s += kPrefixLen;
// Attempt to read integer id.
return GetIntegerId(s, service_id);
}
static bool IsValidClassId(Isolate* isolate, intptr_t cid) {
ASSERT(isolate != NULL);
ClassTable* class_table = isolate->class_table();
ASSERT(class_table != NULL);
return class_table->IsValidIndex(cid) && class_table->HasValidClassAt(cid);
}
static ClassPtr GetClassForId(Isolate* isolate, intptr_t cid) {
ASSERT(isolate == Isolate::Current());
ASSERT(isolate != NULL);
ClassTable* class_table = isolate->class_table();
ASSERT(class_table != NULL);
return class_table->At(cid);
}
// TODO(johnmccutchan): Split into separate file and write unit tests.
class MethodParameter {
public:
MethodParameter(const char* name, bool required)
: name_(name), required_(required) {}
virtual ~MethodParameter() {}
virtual bool Validate(const char* value) const { return true; }
virtual bool ValidateObject(const Object& value) const { return true; }
const char* name() const { return name_; }
bool required() const { return required_; }
virtual void PrintError(const char* name,
const char* value,
JSONStream* js) const {
PrintInvalidParamError(js, name);
}
virtual void PrintErrorObject(const char* name,
const Object& value,
JSONStream* js) const {
PrintInvalidParamError(js, name);
}
private:
const char* name_;
bool required_;
};
class DartStringParameter : public MethodParameter {
public:
DartStringParameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool ValidateObject(const Object& value) const {
return value.IsString();
}
};
class DartListParameter : public MethodParameter {
public:
DartListParameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool ValidateObject(const Object& value) const {
return value.IsArray() || value.IsGrowableObjectArray();
}
};
class NoSuchParameter : public MethodParameter {
public:
explicit NoSuchParameter(const char* name) : MethodParameter(name, false) {}
virtual bool Validate(const char* value) const { return (value == NULL); }
virtual bool ValidateObject(const Object& value) const {
return value.IsNull();
}
};
class BoolParameter : public MethodParameter {
public:
BoolParameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool Validate(const char* value) const {
if (value == NULL) {
return false;
}
return (strcmp("true", value) == 0) || (strcmp("false", value) == 0);
}
static bool Parse(const char* value, bool default_value = false) {
if (value == NULL) {
return default_value;
}
return strcmp("true", value) == 0;
}
};
class UIntParameter : public MethodParameter {
public:
UIntParameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool Validate(const char* value) const {
if (value == NULL) {
return false;
}
for (const char* cp = value; *cp != '\0'; cp++) {
if (*cp < '0' || *cp > '9') {
return false;
}
}
return true;
}
static uintptr_t Parse(const char* value) {
if (value == NULL) {
return -1;
}
char* end_ptr = NULL;
uintptr_t result = strtoul(value, &end_ptr, 10);
ASSERT(*end_ptr == '\0'); // Parsed full string
return result;
}
};
class Int64Parameter : public MethodParameter {
public:
Int64Parameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool Validate(const char* value) const {
if (value == NULL) {
return false;
}
for (const char* cp = value; *cp != '\0'; cp++) {
if ((*cp < '0' || *cp > '9') && (*cp != '-')) {
return false;
}
}
return true;
}
static int64_t Parse(const char* value, int64_t default_value = -1) {
if ((value == NULL) || (*value == '\0')) {
return default_value;
}
char* end_ptr = NULL;
int64_t result = strtoll(value, &end_ptr, 10);
ASSERT(*end_ptr == '\0'); // Parsed full string
return result;
}
};
class UInt64Parameter : public MethodParameter {
public:
UInt64Parameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool Validate(const char* value) const {
if (value == NULL) {
return false;
}
for (const char* cp = value; *cp != '\0'; cp++) {
if ((*cp < '0' || *cp > '9') && (*cp != '-')) {
return false;
}
}
return true;
}
static uint64_t Parse(const char* value, uint64_t default_value = 0) {
if ((value == NULL) || (*value == '\0')) {
return default_value;
}
char* end_ptr = NULL;
uint64_t result = strtoull(value, &end_ptr, 10);
ASSERT(*end_ptr == '\0'); // Parsed full string
return result;
}
};
class IdParameter : public MethodParameter {
public:
IdParameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool Validate(const char* value) const { return (value != NULL); }
};
class StringParameter : public MethodParameter {
public:
StringParameter(const char* name, bool required)
: MethodParameter(name, required) {}
virtual bool Validate(const char* value) const { return (value != NULL); }
};
class RunnableIsolateParameter : public MethodParameter {
public:
explicit RunnableIsolateParameter(const char* name)
: MethodParameter(name, true) {}
virtual bool Validate(const char* value) const {
Isolate* isolate = Isolate::Current();
return (value != NULL) && (isolate != NULL) && (isolate->is_runnable());
}
virtual void PrintError(const char* name,
const char* value,
JSONStream* js) const {
js->PrintError(kIsolateMustBeRunnable,
"Isolate must be runnable before this request is made.");
}
};
#define ISOLATE_PARAMETER new IdParameter("isolateId", true)
#define ISOLATE_GROUP_PARAMETER new IdParameter("isolateGroupId", true)
#define NO_ISOLATE_PARAMETER new NoSuchParameter("isolateId")
#define RUNNABLE_ISOLATE_PARAMETER new RunnableIsolateParameter("isolateId")
class EnumParameter : public MethodParameter {
public:
EnumParameter(const char* name, bool required, const char* const* enums)
: MethodParameter(name, required), enums_(enums) {}
virtual bool Validate(const char* value) const {
if (value == NULL) {
return true;
}
for (intptr_t i = 0; enums_[i] != NULL; i++) {
if (strcmp(value, enums_[i]) == 0) {
return true;
}
}
return false;
}
private:
const char* const* enums_;
};
// If the key is not found, this function returns the last element in the
// values array. This can be used to encode the default value.
template <typename T>
T EnumMapper(const char* value, const char* const* enums, T* values) {
ASSERT(value != NULL);
intptr_t i = 0;
for (i = 0; enums[i] != NULL; i++) {
if (strcmp(value, enums[i]) == 0) {
return values[i];
}
}
// Default value.
return values[i];
}
class EnumListParameter : public MethodParameter {
public:
EnumListParameter(const char* name, bool required, const char* const* enums)
: MethodParameter(name, required), enums_(enums) {}
virtual bool Validate(const char* value) const {
return ElementCount(value) >= 0;
}
const char** Parse(Zone* zone, const char* value_in) const {
const char* kJsonChars = " \t\r\n[,]";
// Make a writeable copy of the value.
char* value = zone->MakeCopyOfString(value_in);
intptr_t element_count = ElementCount(value);
intptr_t element_pos = 0;
// Allocate our element array. +1 for NULL terminator.
char** elements = zone->Alloc<char*>(element_count + 1);
elements[element_count] = NULL;
// Parse the string destructively. Build the list of elements.
while (element_pos < element_count) {
// Skip to the next element.
value += strspn(value, kJsonChars);
intptr_t len = strcspn(value, kJsonChars);
ASSERT(len > 0); // We rely on the parameter being validated already.
value[len] = '\0';
elements[element_pos++] = value;
// Advance. +1 for null terminator.
value += (len + 1);
}
return const_cast<const char**>(elements);
}
private:
// For now observatory enums are ascii letters plus underscore.
static bool IsEnumChar(char c) {
return (((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')) ||
(c == '_'));
}
// Returns number of elements in the list. -1 on parse error.
intptr_t ElementCount(const char* value) const {
const char* kJsonWhitespaceChars = " \t\r\n";
if (value == NULL) {
return -1;
}
const char* cp = value;
cp += strspn(cp, kJsonWhitespaceChars);
if (*cp++ != '[') {
// Missing initial [.
return -1;
}
bool closed = false;
bool element_allowed = true;
intptr_t element_count = 0;
while (true) {
// Skip json whitespace.
cp += strspn(cp, kJsonWhitespaceChars);
switch (*cp) {
case '\0':
return closed ? element_count : -1;
case ']':
closed = true;
cp++;
break;
case ',':
if (element_allowed) {
return -1;
}
element_allowed = true;
cp++;
break;
default:
if (!element_allowed) {
return -1;
}
bool valid_enum = false;
const char* id_start = cp;
while (IsEnumChar(*cp)) {
cp++;
}
if (cp == id_start) {
// Empty identifier, something like this [,].
return -1;
}
intptr_t id_len = cp - id_start;
if (enums_ != NULL) {
for (intptr_t i = 0; enums_[i] != NULL; i++) {
intptr_t len = strlen(enums_[i]);
if (len == id_len && strncmp(id_start, enums_[i], len) == 0) {
element_count++;
valid_enum = true;
element_allowed = false; // we need a comma first.
break;
}
}
}
if (!valid_enum) {
return -1;
}
break;
}
}
}
const char* const* enums_;
};
typedef bool (*ServiceMethodEntry)(Thread* thread, JSONStream* js);
struct ServiceMethodDescriptor {
const char* name;
const ServiceMethodEntry entry;
const MethodParameter* const* parameters;
};
// TODO(johnmccutchan): Do we reject unexpected parameters?
static bool ValidateParameters(const MethodParameter* const* parameters,
JSONStream* js) {
if (parameters == NULL) {
return true;
}
if (js->NumObjectParameters() > 0) {
Object& value = Object::Handle();
for (intptr_t i = 0; parameters[i] != NULL; i++) {
const MethodParameter* parameter = parameters[i];
const char* name = parameter->name();
const bool required = parameter->required();
value = js->LookupObjectParam(name);
const bool has_parameter = !value.IsNull();
if (required && !has_parameter) {
PrintMissingParamError(js, name);
return false;
}
if (has_parameter && !parameter->ValidateObject(value)) {
parameter->PrintErrorObject(name, value, js);
return false;
}
}
} else {
for (intptr_t i = 0; parameters[i] != NULL; i++) {
const MethodParameter* parameter = parameters[i];
const char* name = parameter->name();
const bool required = parameter->required();
const char* value = js->LookupParam(name);
const bool has_parameter = (value != NULL);
if (required && !has_parameter) {
PrintMissingParamError(js, name);
return false;
}
if (has_parameter && !parameter->Validate(value)) {
parameter->PrintError(name, value, js);
return false;
}
}
}
return true;
}
void Service::PostError(const String& method_name,
const Array& parameter_keys,
const Array& parameter_values,
const Instance& reply_port,
const Instance& id,
const Error& error) {
Thread* T = Thread::Current();
StackZone zone(T);
HANDLESCOPE(T);
JSONStream js;
js.Setup(zone.GetZone(), SendPort::Cast(reply_port).Id(), id, method_name,
parameter_keys, parameter_values);
js.PrintError(kExtensionError, "Error in extension `%s`: %s", js.method(),
error.ToErrorCString());
js.PostReply();
}
ErrorPtr Service::InvokeMethod(Isolate* I,
const Array& msg,
bool parameters_are_dart_objects) {
Thread* T = Thread::Current();
ASSERT(I == T->isolate());
ASSERT(I != NULL);
ASSERT(T->execution_state() == Thread::kThreadInVM);
ASSERT(!msg.IsNull());
ASSERT(msg.Length() == 6);
{
StackZone zone(T);
HANDLESCOPE(T);
Instance& reply_port = Instance::Handle(Z);
Instance& seq = String::Handle(Z);
String& method_name = String::Handle(Z);
Array& param_keys = Array::Handle(Z);
Array& param_values = Array::Handle(Z);
reply_port ^= msg.At(1);
seq ^= msg.At(2);
method_name ^= msg.At(3);
param_keys ^= msg.At(4);
param_values ^= msg.At(5);
ASSERT(!method_name.IsNull());
ASSERT(seq.IsNull() || seq.IsString() || seq.IsNumber());
ASSERT(!param_keys.IsNull());
ASSERT(!param_values.IsNull());
ASSERT(param_keys.Length() == param_values.Length());
// We expect a reply port unless there is a null sequence id,
// which indicates that no reply should be sent. We use this in
// tests.
if (!seq.IsNull() && !reply_port.IsSendPort()) {
FATAL("SendPort expected.");
}
JSONStream js;
Dart_Port reply_port_id =
(reply_port.IsNull() ? ILLEGAL_PORT : SendPort::Cast(reply_port).Id());
js.Setup(zone.GetZone(), reply_port_id, seq, method_name, param_keys,
param_values, parameters_are_dart_objects);
// RPC came in with a custom service id zone.
const char* id_zone_param = js.LookupParam("_idZone");
if (id_zone_param != NULL) {
// Override id zone.
if (strcmp("default", id_zone_param) == 0) {
// Ring with eager id allocation. This is the default ring and default
// policy.
// Nothing to do.
} else if (strcmp("default.reuse", id_zone_param) == 0) {
// Change the default ring's policy.
RingServiceIdZone* zone =
reinterpret_cast<RingServiceIdZone*>(js.id_zone());
zone->set_policy(ObjectIdRing::kReuseId);
} else {
// TODO(johnmccutchan): Support creating, deleting, and selecting
// custom service id zones.
// For now, always return an error.
PrintInvalidParamError(&js, "_idZone");
js.PostReply();
return T->StealStickyError();
}
}
const char* c_method_name = method_name.ToCString();
const ServiceMethodDescriptor* method = FindMethod(c_method_name);
if (method != NULL) {
if (!ValidateParameters(method->parameters, &js)) {
js.PostReply();
return T->StealStickyError();
}
if (method->entry(T, &js)) {
js.PostReply();
} else {
// NOTE(turnidge): All message handlers currently return true,
// so this case shouldn't be reached, at present.
UNIMPLEMENTED();
}
return T->StealStickyError();
}
EmbedderServiceHandler* handler = FindIsolateEmbedderHandler(c_method_name);
if (handler == NULL) {
handler = FindRootEmbedderHandler(c_method_name);
}
if (handler != NULL) {
EmbedderHandleMessage(handler, &js);
return T->StealStickyError();
}
const Instance& extension_handler =
Instance::Handle(Z, I->LookupServiceExtensionHandler(method_name));
if (!extension_handler.IsNull()) {
ScheduleExtensionHandler(extension_handler, method_name, param_keys,
param_values, reply_port, seq);
// Schedule was successful. Extension code will post a reply
// asynchronously.
return T->StealStickyError();
}
PrintUnrecognizedMethodError(&js);
js.PostReply();
return T->StealStickyError();
}
}
ErrorPtr Service::HandleRootMessage(const Array& msg_instance) {
Isolate* isolate = Isolate::Current();
return InvokeMethod(isolate, msg_instance);
}
ErrorPtr Service::HandleObjectRootMessage(const Array& msg_instance) {
Isolate* isolate = Isolate::Current();
return InvokeMethod(isolate, msg_instance, true);
}
ErrorPtr Service::HandleIsolateMessage(Isolate* isolate, const Array& msg) {
ASSERT(isolate != NULL);
const Error& error = Error::Handle(InvokeMethod(isolate, msg));
return MaybePause(isolate, error);
}
static void Finalizer(void* isolate_callback_data, void* buffer) {
free(buffer);
}
void Service::SendEvent(const char* stream_id,
const char* event_type,
uint8_t* bytes,
intptr_t bytes_length) {
Thread* thread = Thread::Current();
Isolate* isolate = thread->isolate();
ASSERT(isolate != NULL);
if (FLAG_trace_service) {
OS::PrintErr(
"vm-service: Pushing ServiceEvent(isolate='%s', "
"isolateId='" ISOLATE_SERVICE_ID_FORMAT_STRING
"', kind='%s',"
" len=%" Pd ") to stream %s\n",
isolate->name(), static_cast<int64_t>(isolate->main_port()), event_type,
bytes_length, stream_id);
}
bool result;
{
Dart_CObject cbytes;
cbytes.type = Dart_CObject_kExternalTypedData;
cbytes.value.as_external_typed_data.type = Dart_TypedData_kUint8;
cbytes.value.as_external_typed_data.length = bytes_length;
cbytes.value.as_external_typed_data.data = bytes;
cbytes.value.as_external_typed_data.peer = bytes;
cbytes.value.as_external_typed_data.callback = Finalizer;
Dart_CObject cstream_id;
cstream_id.type = Dart_CObject_kString;
cstream_id.value.as_string = const_cast<char*>(stream_id);
Dart_CObject* elements[2];
elements[0] = &cstream_id;
elements[1] = &cbytes;
Dart_CObject message;
message.type = Dart_CObject_kArray;
message.value.as_array.length = 2;
message.value.as_array.values = elements;
ApiMessageWriter writer;
std::unique_ptr<Message> msg = writer.WriteCMessage(
&message, ServiceIsolate::Port(), Message::kNormalPriority);
if (msg == nullptr) {
result = false;
} else {
result = PortMap::PostMessage(std::move(msg));
}
}
if (!result) {
free(bytes);
}
}
void Service::SendEventWithData(const char* stream_id,
const char* event_type,
intptr_t reservation,
const char* metadata,
intptr_t metadata_size,
uint8_t* data,
intptr_t data_size) {
ASSERT(kInt32Size + metadata_size <= reservation);
// Using a SPACE creates valid JSON. Our goal here is to prevent the memory
// overhead of copying to concatenate metadata and payload together by
// over-allocating to underlying buffer before we know how long the metadata
// will be.
memset(data, ' ', reservation);
reinterpret_cast<uint32_t*>(data)[0] = reservation;
memmove(&(reinterpret_cast<uint32_t*>(data)[1]), metadata, metadata_size);
Service::SendEvent(stream_id, event_type, data, data_size);
}
static void ReportPauseOnConsole(ServiceEvent* event) {
const char* name = event->isolate()->name();
const int64_t main_port = static_cast<int64_t>(event->isolate()->main_port());
switch (event->kind()) {
case ServiceEvent::kPauseStart:
OS::PrintErr("vm-service: isolate(%" Pd64
") '%s' has no debugger attached and is paused at start.",
main_port, name);
break;
case ServiceEvent::kPauseExit:
OS::PrintErr("vm-service: isolate(%" Pd64
") '%s' has no debugger attached and is paused at exit.",
main_port, name);
break;
case ServiceEvent::kPauseException:
OS::PrintErr(
"vm-service: isolate (%" Pd64
") '%s' has no debugger attached and is paused due to exception.",
main_port, name);
break;
case ServiceEvent::kPauseInterrupted:
OS::PrintErr(
"vm-service: isolate (%" Pd64
") '%s' has no debugger attached and is paused due to interrupt.",
main_port, name);
break;
case ServiceEvent::kPauseBreakpoint:
OS::PrintErr("vm-service: isolate (%" Pd64
") '%s' has no debugger attached and is paused.",
main_port, name);
break;
case ServiceEvent::kPausePostRequest:
OS::PrintErr("vm-service: isolate (%" Pd64
") '%s' has no debugger attached and is paused post reload.",
main_port, name);
break;
default:
UNREACHABLE();
break;
}
if (!ServiceIsolate::IsRunning()) {
OS::PrintErr(" Start the vm-service to debug.\n");
} else if (ServiceIsolate::server_address() == NULL) {
OS::PrintErr(" Connect to Observatory to debug.\n");
} else {
OS::PrintErr(" Connect to Observatory at %s to debug.\n",
ServiceIsolate::server_address());
}
const Error& err = Error::Handle(Thread::Current()->sticky_error());
if (!err.IsNull()) {
OS::PrintErr("%s\n", err.ToErrorCString());
}
}
void Service::HandleEvent(ServiceEvent* event) {
if (event->stream_info() != NULL && !event->stream_info()->enabled()) {
if (FLAG_warn_on_pause_with_no_debugger && event->IsPause()) {
// If we are about to pause a running program which has no
// debugger connected, tell the user about it.
ReportPauseOnConsole(event);
}
// Ignore events when no one is listening to the event stream.
return;
} else if (event->stream_info() != NULL &&
FLAG_warn_on_pause_with_no_debugger && event->IsPause()) {
ReportPauseOnConsole(event);
}
if (!ServiceIsolate::IsRunning()) {
return;
}
JSONStream js;
const char* stream_id = event->stream_id();
ASSERT(stream_id != NULL);
{
JSONObject jsobj(&js);
jsobj.AddProperty("jsonrpc", "2.0");
jsobj.AddProperty("method", "streamNotify");
JSONObject params(&jsobj, "params");
params.AddProperty("streamId", stream_id);
params.AddProperty("event", event);
}
PostEvent(event->isolate(), stream_id, event->KindAsCString(), &js);
// Post event to the native Service Stream handlers if set.
if (event->stream_info() != nullptr &&
event->stream_info()->consumer() != nullptr) {
auto length = js.buffer()->length();
event->stream_info()->consumer()(
reinterpret_cast<uint8_t*>(js.buffer()->buffer()), length);
}
}
void Service::PostEvent(Isolate* isolate,
const char* stream_id,
const char* kind,
JSONStream* event) {
ASSERT(stream_id != NULL);
ASSERT(kind != NULL);
ASSERT(event != NULL);
if (FLAG_trace_service) {
if (isolate != NULL) {
OS::PrintErr(
"vm-service: Pushing ServiceEvent(isolate='%s', "
"isolateId='" ISOLATE_SERVICE_ID_FORMAT_STRING
"', kind='%s') to stream %s\n",
isolate->name(), static_cast<int64_t>(isolate->main_port()), kind,
stream_id);
} else {
OS::PrintErr(
"vm-service: Pushing ServiceEvent(isolate='<no current isolate>', "
"kind='%s') to stream %s\n",
kind, stream_id);
}
}
// Message is of the format [<stream id>, <json string>].
//
// Build the event message in the C heap to avoid dart heap
// allocation. This method can be called while we have acquired a
// direct pointer to typed data, so we can't allocate here.
Dart_CObject list_cobj;
Dart_CObject* list_values[2];
list_cobj.type = Dart_CObject_kArray;
list_cobj.value.as_array.length = 2;
list_cobj.value.as_array.values = list_values;
Dart_CObject stream_id_cobj;
stream_id_cobj.type = Dart_CObject_kString;
stream_id_cobj.value.as_string = const_cast<char*>(stream_id);
list_values[0] = &stream_id_cobj;
Dart_CObject json_cobj;
json_cobj.type = Dart_CObject_kString;
json_cobj.value.as_string = const_cast<char*>(event->ToCString());
list_values[1] = &json_cobj;
ApiMessageWriter writer;
std::unique_ptr<Message> msg = writer.WriteCMessage(
&list_cobj, ServiceIsolate::Port(), Message::kNormalPriority);
if (msg != nullptr) {
PortMap::PostMessage(std::move(msg));
}
}
class EmbedderServiceHandler {
public:
explicit EmbedderServiceHandler(const char* name)
: name_(NULL), callback_(NULL), user_data_(NULL), next_(NULL) {
ASSERT(name != NULL);
name_ = Utils::StrDup(name);
}
~EmbedderServiceHandler() { free(name_); }
const char* name() const { return name_; }
Dart_ServiceRequestCallback callback() const { return callback_; }
void set_callback(Dart_ServiceRequestCallback callback) {
callback_ = callback;
}
void* user_data() const { return user_data_; }
void set_user_data(void* user_data) { user_data_ = user_data; }
EmbedderServiceHandler* next() const { return next_; }
void set_next(EmbedderServiceHandler* next) { next_ = next; }
private:
char* name_;
Dart_ServiceRequestCallback callback_;
void* user_data_;
EmbedderServiceHandler* next_;
};
void Service::EmbedderHandleMessage(EmbedderServiceHandler* handler,
JSONStream* js) {
ASSERT(handler != NULL);
Dart_ServiceRequestCallback callback = handler->callback();
ASSERT(callback != NULL);
const char* response = NULL;
bool success;
{
TransitionVMToNative transition(Thread::Current());
success = callback(js->method(), js->param_keys(), js->param_values(),
js->num_params(), handler->user_data(), &response);
}
ASSERT(response != NULL);
if (!success) {
js->SetupError();
}
js->buffer()->AddString(response);
js->PostReply();
free(const_cast<char*>(response));
}
void Service::RegisterIsolateEmbedderCallback(
const char* name,
Dart_ServiceRequestCallback callback,
void* user_data) {
if (name == NULL) {
return;
}
EmbedderServiceHandler* handler = FindIsolateEmbedderHandler(name);
if (handler != NULL) {
// Update existing handler entry.
handler->set_callback(callback);
handler->set_user_data(user_data);
return;
}
// Create a new handler.
handler = new EmbedderServiceHandler(name);
handler->set_callback(callback);
handler->set_user_data(user_data);
// Insert into isolate_service_handler_head_ list.
handler->set_next(isolate_service_handler_head_);
isolate_service_handler_head_ = handler;
}
EmbedderServiceHandler* Service::FindIsolateEmbedderHandler(const char* name) {
EmbedderServiceHandler* current = isolate_service_handler_head_;
while (current != NULL) {
if (strcmp(name, current->name()) == 0) {
return current;
}
current = current->next();
}
return NULL;
}
void Service::RegisterRootEmbedderCallback(const char* name,
Dart_ServiceRequestCallback callback,
void* user_data) {
if (name == NULL) {
return;
}
EmbedderServiceHandler* handler = FindRootEmbedderHandler(name);
if (handler != NULL) {
// Update existing handler entry.
handler->set_callback(callback);
handler->set_user_data(user_data);
return;
}
// Create a new handler.
handler = new EmbedderServiceHandler(name);
handler->set_callback(callback);
handler->set_user_data(user_data);
// Insert into root_service_handler_head_ list.
handler->set_next(root_service_handler_head_);
root_service_handler_head_ = handler;
}
void Service::SetEmbedderStreamCallbacks(
Dart_ServiceStreamListenCallback listen_callback,
Dart_ServiceStreamCancelCallback cancel_callback) {
stream_listen_callback_ = listen_callback;
stream_cancel_callback_ = cancel_callback;
}
void Service::SetNativeServiceStreamCallback(Dart_NativeStreamConsumer consumer,
const char* stream_id) {
for (auto stream : streams_) {
if (stream->id() == stream_id) {
stream->set_consumer(consumer);
}
}
// Enable stream.
ListenStream(stream_id);
}
void Service::SetGetServiceAssetsCallback(
Dart_GetVMServiceAssetsArchive get_service_assets) {
get_service_assets_callback_ = get_service_assets;
}
void Service::SetEmbedderInformationCallback(
Dart_EmbedderInformationCallback callback) {
embedder_information_callback_ = callback;
}
int64_t Service::CurrentRSS() {
if (embedder_information_callback_ == NULL) {
return -1;
}
Dart_EmbedderInformation info = {
0, // version
NULL, // name
0, // max_rss
0 // current_rss
};
embedder_information_callback_(&info);
ASSERT(info.version == DART_EMBEDDER_INFORMATION_CURRENT_VERSION);
return info.current_rss;
}
int64_t Service::MaxRSS() {
if (embedder_information_callback_ == NULL) {
return -1;
}
Dart_EmbedderInformation info = {
0, // version
NULL, // name
0, // max_rss
0 // current_rss
};
embedder_information_callback_(&info);
ASSERT(info.version == DART_EMBEDDER_INFORMATION_CURRENT_VERSION);
return info.max_rss;
}
void Service::SetDartLibraryKernelForSources(const uint8_t* kernel_bytes,
intptr_t kernel_length) {
dart_library_kernel_ = kernel_bytes;
dart_library_kernel_len_ = kernel_length;
}
EmbedderServiceHandler* Service::FindRootEmbedderHandler(const char* name) {
EmbedderServiceHandler* current = root_service_handler_head_;
while (current != NULL) {
if (strcmp(name, current->name()) == 0) {
return current;
}
current = current->next();
}
return NULL;
}
void Service::ScheduleExtensionHandler(const Instance& handler,
const String& method_name,
const Array& parameter_keys,
const Array& parameter_values,
const Instance& reply_port,
const Instance& id) {
ASSERT(!handler.IsNull());
ASSERT(!method_name.IsNull());
ASSERT(!parameter_keys.IsNull());
ASSERT(!parameter_values.IsNull());
ASSERT(!reply_port.IsNull());
Isolate* isolate = Isolate::Current();
ASSERT(isolate != NULL);
isolate->AppendServiceExtensionCall(handler, method_name, parameter_keys,
parameter_values, reply_port, id);
}
static const MethodParameter* get_isolate_params[] = {
ISOLATE_PARAMETER,
NULL,
};
static bool GetIsolate(Thread* thread, JSONStream* js) {
thread->isolate()->PrintJSON(js, false);
return true;
}
static const MethodParameter* get_isolate_group_params[] = {
ISOLATE_GROUP_PARAMETER,
NULL,
};
enum SentinelType {
kCollectedSentinel,
kExpiredSentinel,
kFreeSentinel,
};
static void PrintSentinel(JSONStream* js, SentinelType sentinel_type) {
JSONObject jsobj(js);
jsobj.AddProperty("type", "Sentinel");
switch (sentinel_type) {
case kCollectedSentinel:
jsobj.AddProperty("kind", "Collected");
jsobj.AddProperty("valueAsString", "<collected>");
break;
case kExpiredSentinel:
jsobj.AddProperty("kind", "Expired");
jsobj.AddProperty("valueAsString", "<expired>");
break;
case kFreeSentinel:
jsobj.AddProperty("kind", "Free");
jsobj.AddProperty("valueAsString", "<free>");
break;
default:
UNIMPLEMENTED();
break;
}
}
static void ActOnIsolateGroup(JSONStream* js,
std::function<void(IsolateGroup*)> visitor) {
const String& prefix =
String::Handle(String::New(ISOLATE_GROUP_SERVICE_ID_PREFIX));
const String& s =
String::Handle(String::New(js->LookupParam("isolateGroupId")));
if (!s.StartsWith(prefix)) {
PrintInvalidParamError(js, "isolateGroupId");
return;
}
uint64_t isolate_group_id = UInt64Parameter::Parse(
String::Handle(String::SubString(s, prefix.Length())).ToCString());
IsolateGroup::RunWithIsolateGroup(
isolate_group_id,
[&visitor](IsolateGroup* isolate_group) { visitor(isolate_group); },
/*if_not_found=*/[&js]() { PrintSentinel(js, kExpiredSentinel); });
}
static bool GetIsolateGroup(Thread* thread, JSONStream* js) {
ActOnIsolateGroup(js, [&](IsolateGroup* isolate_group) {
isolate_group->PrintJSON(js, false);
});
return true;
}
static const MethodParameter* get_memory_usage_params[] = {
ISOLATE_PARAMETER,
NULL,
};
static bool GetMemoryUsage(Thread* thread, JSONStream* js) {
thread->isolate()->PrintMemoryUsageJSON(js);
return true;
}
static const MethodParameter* get_isolate_group_memory_usage_params[] = {
ISOLATE_GROUP_PARAMETER,
NULL,
};
static bool GetIsolateGroupMemoryUsage(Thread* thread, JSONStream* js) {
ActOnIsolateGroup(js, [&](IsolateGroup* isolate_group) {
isolate_group->PrintMemoryUsageJSON(js);
});
return true;
}
static const MethodParameter* get_scripts_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetScripts(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
Zone* zone = thread->zone();
ASSERT(isolate != NULL);
const GrowableObjectArray& libs =
GrowableObjectArray::Handle(zone, isolate->object_store()->libraries());
intptr_t num_libs = libs.Length();
Library& lib = Library::Handle(zone);
Array& scripts = Array::Handle(zone);
Script& script = Script::Handle(zone);
JSONObject jsobj(js);
{
jsobj.AddProperty("type", "ScriptList");
JSONArray script_array(&jsobj, "scripts");
for (intptr_t i = 0; i < num_libs; i++) {
lib ^= libs.At(i);
ASSERT(!lib.IsNull());
scripts = lib.LoadedScripts();
for (intptr_t j = 0; j < scripts.Length(); j++) {
script ^= scripts.At(j);
ASSERT(!script.IsNull());
script_array.AddValue(script);
}
}
}
return true;
}
static const MethodParameter* get_stack_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new UIntParameter("limit", false),
NULL,
};
static bool GetStack(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
intptr_t limit = 0;
bool has_limit = js->HasParam("limit");
if (has_limit) {
limit = UIntParameter::Parse(js->LookupParam("limit"));
if (limit < 0) {
PrintInvalidParamError(js, "limit");
return true;
}
}
Isolate* isolate = thread->isolate();
DebuggerStackTrace* stack = isolate->debugger()->StackTrace();
DebuggerStackTrace* async_causal_stack =
isolate->debugger()->AsyncCausalStackTrace();
DebuggerStackTrace* awaiter_stack = isolate->debugger()->AwaiterStackTrace();
// Do we want the complete script object and complete local variable objects?
// This is true for dump requests.
JSONObject jsobj(js);
jsobj.AddProperty("type", "Stack");
{
JSONArray jsarr(&jsobj, "frames");
intptr_t num_frames =
has_limit ? Utils::Minimum(stack->Length(), limit) : stack->Length();
for (intptr_t i = 0; i < num_frames; i++) {
ActivationFrame* frame = stack->FrameAt(i);
JSONObject jsobj(&jsarr);
frame->PrintToJSONObject(&jsobj);
jsobj.AddProperty("index", i);
}
}
if (async_causal_stack != NULL) {
JSONArray jsarr(&jsobj, "asyncCausalFrames");
intptr_t num_frames =
has_limit ? Utils::Minimum(async_causal_stack->Length(), limit)
: async_causal_stack->Length();
for (intptr_t i = 0; i < num_frames; i++) {
ActivationFrame* frame = async_causal_stack->FrameAt(i);
JSONObject jsobj(&jsarr);
frame->PrintToJSONObject(&jsobj);
jsobj.AddProperty("index", i);
}
}
if (awaiter_stack != NULL) {
JSONArray jsarr(&jsobj, "awaiterFrames");
intptr_t num_frames = has_limit
? Utils::Minimum(awaiter_stack->Length(), limit)
: awaiter_stack->Length();
for (intptr_t i = 0; i < num_frames; i++) {
ActivationFrame* frame = awaiter_stack->FrameAt(i);
JSONObject jsobj(&jsarr);
frame->PrintToJSONObject(&jsobj);
jsobj.AddProperty("index", i);
}
}
const bool truncated =
(has_limit &&
(limit < stack->Length() ||
(async_causal_stack != nullptr &&
limit < async_causal_stack->Length()) ||
(awaiter_stack != nullptr && limit < awaiter_stack->Length())));
jsobj.AddProperty("truncated", truncated);
{
MessageHandler::AcquiredQueues aq(isolate->message_handler());
jsobj.AddProperty("messages", aq.queue());
}
return true;
}
static bool HandleCommonEcho(JSONObject* jsobj, JSONStream* js) {
jsobj->AddProperty("type", "_EchoResponse");
if (js->HasParam("text")) {
jsobj->AddProperty("text", js->LookupParam("text"));
}
return true;
}
void Service::SendEchoEvent(Isolate* isolate, const char* text) {
JSONStream js;
{
JSONObject jsobj(&js);
jsobj.AddProperty("jsonrpc", "2.0");
jsobj.AddProperty("method", "streamNotify");
{
JSONObject params(&jsobj, "params");
params.AddProperty("streamId", echo_stream.id());
{
JSONObject event(&params, "event");
event.AddProperty("type", "Event");
event.AddProperty("kind", "_Echo");
event.AddProperty("isolate", isolate);
if (text != NULL) {
event.AddProperty("text", text);
}
event.AddPropertyTimeMillis("timestamp", OS::GetCurrentTimeMillis());
}
}
}
intptr_t reservation = js.buffer()->length() + sizeof(int32_t);
intptr_t data_size = reservation + 3;
uint8_t* data = reinterpret_cast<uint8_t*>(malloc(data_size));
data[reservation + 0] = 0;
data[reservation + 1] = 128;
data[reservation + 2] = 255;
SendEventWithData(echo_stream.id(), "_Echo", reservation,
js.buffer()->buffer(), js.buffer()->length(), data,
data_size);
}
static bool TriggerEchoEvent(Thread* thread, JSONStream* js) {
if (Service::echo_stream.enabled()) {
Service::SendEchoEvent(thread->isolate(), js->LookupParam("text"));
}
JSONObject jsobj(js);
return HandleCommonEcho(&jsobj, js);
}
static bool Echo(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
return HandleCommonEcho(&jsobj, js);
}
static bool ContainsNonInstance(const Object& obj) {
if (obj.IsArray()) {
const Array& array = Array::Cast(obj);
Object& element = Object::Handle();
for (intptr_t i = 0; i < array.Length(); ++i) {
element = array.At(i);
if (!(element.IsInstance() || element.IsNull())) {
return true;
}
}
return false;
} else if (obj.IsGrowableObjectArray()) {
const GrowableObjectArray& array = GrowableObjectArray::Cast(obj);
Object& element = Object::Handle();
for (intptr_t i = 0; i < array.Length(); ++i) {
element = array.At(i);
if (!(element.IsInstance() || element.IsNull())) {
return true;
}
}
return false;
} else {
return !(obj.IsInstance() || obj.IsNull());
}
}
static ObjectPtr LookupObjectId(Thread* thread,
const char* arg,
ObjectIdRing::LookupResult* kind) {
*kind = ObjectIdRing::kValid;
if (strncmp(arg, "int-", 4) == 0) {
arg += 4;
int64_t value = 0;
if (!OS::StringToInt64(arg, &value) || !Smi::IsValid(value)) {
*kind = ObjectIdRing::kInvalid;
return Object::null();
}
const Integer& obj =
Integer::Handle(thread->zone(), Smi::New(static_cast<intptr_t>(value)));
return obj.raw();
} else if (strcmp(arg, "bool-true") == 0) {
return Bool::True().raw();
} else if (strcmp(arg, "bool-false") == 0) {
return Bool::False().raw();
} else if (strcmp(arg, "null") == 0) {
return Object::null();
}
ObjectIdRing* ring = thread->isolate()->EnsureObjectIdRing();
intptr_t id = -1;
if (!GetIntegerId(arg, &id)) {
*kind = ObjectIdRing::kInvalid;
return Object::null();
}
return ring->GetObjectForId(id, kind);
}
static ObjectPtr LookupClassMembers(Thread* thread,
const Class& klass,
char** parts,
int num_parts) {
auto isolate = thread->isolate();
auto zone = thread->zone();
if (num_parts != 4) {
return Object::sentinel().raw();
}
const char* encoded_id = parts[3];
auto& id = String::Handle(String::New(encoded_id));
id = String::DecodeIRI(id);
if (id.IsNull()) {
return Object::sentinel().raw();
}
if (strcmp(parts[2], "fields") == 0) {
// Field ids look like: "classes/17/fields/name"
const auto& field = Field::Handle(klass.LookupField(id));
if (field.IsNull()) {
return Object::sentinel().raw();
}
return field.raw();
}
if (strcmp(parts[2], "functions") == 0) {
// Function ids look like: "classes/17/functions/name"
const auto& function =
Function::Handle(Resolver::ResolveFunction(zone, klass, id));
if (function.IsNull()) {
return Object::sentinel().raw();
}
return function.raw();
}
if (strcmp(parts[2], "implicit_closures") == 0) {
// Function ids look like: "classes/17/implicit_closures/11"
intptr_t id;
if (!GetIntegerId(parts[3], &id)) {
return Object::sentinel().raw();
}
const auto& func =
Function::Handle(zone, klass.ImplicitClosureFunctionFromIndex(id));
if (func.IsNull()) {
return Object::sentinel().raw();
}
return func.raw();
}
if (strcmp(parts[2], "dispatchers") == 0) {
// Dispatcher Function ids look like: "classes/17/dispatchers/11"
intptr_t id;
if (!GetIntegerId(parts[3], &id)) {
return Object::sentinel().raw();
}
const auto& func =
Function::Handle(zone, klass.InvocationDispatcherFunctionFromIndex(id));
if (func.IsNull()) {
return Object::sentinel().raw();
}
return func.raw();
}
if (strcmp(parts[2], "closures") == 0) {
// Closure ids look like: "classes/17/closures/11"
intptr_t id;
if (!GetIntegerId(parts[3], &id)) {
return Object::sentinel().raw();
}
Function& func = Function::Handle(zone);
func = isolate->ClosureFunctionFromIndex(id);
if (func.IsNull()) {
return Object::sentinel().raw();
}
return func.raw();
}
UNREACHABLE();
return Object::sentinel().raw();
}
static ObjectPtr LookupHeapObjectLibraries(Isolate* isolate,
char** parts,
int num_parts) {
// Library ids look like "libraries/35"
if (num_parts < 2) {
return Object::sentinel().raw();
}
const GrowableObjectArray& libs =
GrowableObjectArray::Handle(isolate->object_store()->libraries());
ASSERT(!libs.IsNull());
const String& id = String::Handle(String::New(parts[1]));
// Scan for private key.
String& private_key = String::Handle();
Library& lib = Library::Handle();
bool lib_found = false;
for (intptr_t i = 0; i < libs.Length(); i++) {
lib ^= libs.At(i);
ASSERT(!lib.IsNull());
private_key = lib.private_key();
if (private_key.Equals(id)) {
lib_found = true;
break;
}
}
if (!lib_found) {
return Object::sentinel().raw();
}
const auto& klass = Class::Handle(lib.toplevel_class());
ASSERT(!klass.IsNull());
if (num_parts == 2) {
return lib.raw();
}
if (strcmp(parts[2], "fields") == 0) {
// Library field ids look like: "libraries/17/fields/name"
return LookupClassMembers(Thread::Current(), klass, parts, num_parts);
}
if (strcmp(parts[2], "functions") == 0) {
// Library function ids look like: "libraries/17/functions/name"
return LookupClassMembers(Thread::Current(), klass, parts, num_parts);
}
if (strcmp(parts[2], "closures") == 0) {
// Library function ids look like: "libraries/17/closures/name"
return LookupClassMembers(Thread::Current(), klass, parts, num_parts);
}
if (strcmp(parts[2], "implicit_closures") == 0) {
// Library function ids look like: "libraries/17/implicit_closures/name"
return LookupClassMembers(Thread::Current(), klass, parts, num_parts);
}
if (strcmp(parts[2], "scripts") == 0) {
// Script ids look like "libraries/35/scripts/library%2Furl.dart/12345"
if (num_parts != 5) {
return Object::sentinel().raw();
}
const String& id = String::Handle(String::New(parts[3]));
ASSERT(!id.IsNull());
// The id is the url of the script % encoded, decode it.
const String& requested_url = String::Handle(String::DecodeIRI(id));
// Each script id is tagged with a load time.
int64_t timestamp;
if (!GetInteger64Id(parts[4], &timestamp, 16) || (timestamp < 0)) {
return Object::sentinel().raw();
}
Script& script = Script::Handle();
String& script_url = String::Handle();
const Array& loaded_scripts = Array::Handle(lib.LoadedScripts());
ASSERT(!loaded_scripts.IsNull());
intptr_t i;
for (i = 0; i < loaded_scripts.Length(); i++) {
script ^= loaded_scripts.At(i);
ASSERT(!script.IsNull());
script_url = script.url();
if (script_url.Equals(requested_url) &&
(timestamp == script.load_timestamp())) {
return script.raw();
}
}
}
// Not found.
return Object::sentinel().raw();
}
static ObjectPtr LookupHeapObjectClasses(Thread* thread,
char** parts,
int num_parts) {
// Class ids look like: "classes/17"
if (num_parts < 2) {
return Object::sentinel().raw();
}
Isolate* isolate = thread->isolate();
Zone* zone = thread->zone();
ClassTable* table = isolate->class_table();
intptr_t id;
if (!GetIntegerId(parts[1], &id) || !table->IsValidIndex(id)) {
return Object::sentinel().raw();
}
Class& cls = Class::Handle(zone, table->At(id));
if (num_parts == 2) {
return cls.raw();
}
if (strcmp(parts[2], "closures") == 0) {
// Closure ids look like: "classes/17/closures/11"
return LookupClassMembers(thread, cls, parts, num_parts);
} else if (strcmp(parts[2], "fields") == 0) {
// Field ids look like: "classes/17/fields/name"
return LookupClassMembers(thread, cls, parts, num_parts);
} else if (strcmp(parts[2], "functions") == 0) {
// Function ids look like: "classes/17/functions/name"
return LookupClassMembers(thread, cls, parts, num_parts);
} else if (strcmp(parts[2], "implicit_closures") == 0) {
// Function ids look like: "classes/17/implicit_closures/11"
return LookupClassMembers(thread, cls, parts, num_parts);
} else if (strcmp(parts[2], "dispatchers") == 0) {
// Dispatcher Function ids look like: "classes/17/dispatchers/11"
return LookupClassMembers(thread, cls, parts, num_parts);
} else if (strcmp(parts[2], "types") == 0) {
// Type ids look like: "classes/17/types/11"
if (num_parts != 4) {
return Object::sentinel().raw();
}
intptr_t id;
if (!GetIntegerId(parts[3], &id)) {
return Object::sentinel().raw();
}
if (id != 0) {
return Object::sentinel().raw();
}
const Type& type = Type::Handle(zone, cls.DeclarationType());
if (!type.IsNull()) {
return type.raw();
}
}
// Not found.
return Object::sentinel().raw();
}
static ObjectPtr LookupHeapObjectTypeArguments(Thread* thread,
char** parts,
int num_parts) {
Isolate* isolate = thread->isolate();
// TypeArguments ids look like: "typearguments/17"
if (num_parts < 2) {
return Object::sentinel().raw();
}
intptr_t id;
if (!GetIntegerId(parts[1], &id)) {
return Object::sentinel().raw();
}
ObjectStore* object_store = isolate->object_store();
const Array& table =
Array::Handle(thread->zone(), object_store->canonical_type_arguments());
ASSERT(table.Length() > 0);
const intptr_t table_size = table.Length() - 1;
if ((id < 0) || (id >= table_size) || (table.At(id) == Object::null())) {
return Object::sentinel().raw();
}
return table.At(id);
}
static ObjectPtr LookupHeapObjectCode(Isolate* isolate,
char** parts,
int num_parts) {
if (num_parts != 2) {
return Object::sentinel().raw();
}
uword pc;
static const char* const kCollectedPrefix = "collected-";
static intptr_t kCollectedPrefixLen = strlen(kCollectedPrefix);
static const char* const kNativePrefix = "native-";
static const intptr_t kNativePrefixLen = strlen(kNativePrefix);
static const char* const kReusedPrefix = "reused-";
static const intptr_t kReusedPrefixLen = strlen(kReusedPrefix);
const char* id = parts[1];
if (strncmp(kCollectedPrefix, id, kCollectedPrefixLen) == 0) {
if (!GetUnsignedIntegerId(&id[kCollectedPrefixLen], &pc, 16)) {
return Object::sentinel().raw();
}
// TODO(turnidge): Return "collected" instead.
return Object::null();
}
if (strncmp(kNativePrefix, id, kNativePrefixLen) == 0) {
if (!GetUnsignedIntegerId(&id[kNativePrefixLen], &pc, 16)) {
return Object::sentinel().raw();
}
// TODO(johnmccutchan): Support native Code.
return Object::null();
}
if (strncmp(kReusedPrefix, id, kReusedPrefixLen) == 0) {
if (!GetUnsignedIntegerId(&id[kReusedPrefixLen], &pc, 16)) {
return Object::sentinel().raw();
}
// TODO(turnidge): Return "expired" instead.
return Object::null();
}
int64_t timestamp = 0;
if (!GetCodeId(id, &timestamp, &pc) || (timestamp < 0)) {
return Object::sentinel().raw();
}
Code& code = Code::Handle(Code::FindCode(pc, timestamp));
if (!code.IsNull()) {
return code.raw();
}
// Not found.
return Object::sentinel().raw();
}
static ObjectPtr LookupHeapObjectMessage(Thread* thread,
char** parts,
int num_parts) {
if (num_parts != 2) {
return Object::sentinel().raw();
}
uword message_id = 0;
if (!GetUnsignedIntegerId(parts[1], &message_id, 16)) {
return Object::sentinel().raw();
}
MessageHandler::AcquiredQueues aq(thread->isolate()->message_handler());
Message* message = aq.queue()->FindMessageById(message_id);
if (message == NULL) {
// The user may try to load an expired message.
return Object::sentinel().raw();
}
if (message->IsRaw()) {
return message->raw_obj();
} else {
MessageSnapshotReader reader(message, thread);
return reader.ReadObject();
}
}
static ObjectPtr LookupHeapObject(Thread* thread,
const char* id_original,
ObjectIdRing::LookupResult* result) {
char* id = thread->zone()->MakeCopyOfString(id_original);
// Parse the id by splitting at each '/'.
const int MAX_PARTS = 8;
char* parts[MAX_PARTS];
int num_parts = 0;
int i = 0;
int start_pos = 0;
while (id[i] != '\0') {
if (id[i] == '/') {
id[i++] = '\0';
parts[num_parts++] = &id[start_pos];
if (num_parts == MAX_PARTS) {
break;
}
start_pos = i;
} else {
i++;
}
}
if (num_parts < MAX_PARTS) {
parts[num_parts++] = &id[start_pos];
}
if (result != NULL) {
*result = ObjectIdRing::kValid;
}
Isolate* isolate = thread->isolate();
if (strcmp(parts[0], "objects") == 0) {
// Object ids look like "objects/1123"
Object& obj = Object::Handle(thread->zone());
ObjectIdRing::LookupResult lookup_result;
obj = LookupObjectId(thread, parts[1], &lookup_result);
if (lookup_result != ObjectIdRing::kValid) {
if (result != NULL) {
*result = lookup_result;
}
return Object::sentinel().raw();
}
return obj.raw();
} else if (strcmp(parts[0], "libraries") == 0) {
return LookupHeapObjectLibraries(isolate, parts, num_parts);
} else if (strcmp(parts[0], "classes") == 0) {
return LookupHeapObjectClasses(thread, parts, num_parts);
} else if (strcmp(parts[0], "typearguments") == 0) {
return LookupHeapObjectTypeArguments(thread, parts, num_parts);
} else if (strcmp(parts[0], "code") == 0) {
return LookupHeapObjectCode(isolate, parts, num_parts);
} else if (strcmp(parts[0], "messages") == 0) {
return LookupHeapObjectMessage(thread, parts, num_parts);
}
// Not found.
return Object::sentinel().raw();
}
static Breakpoint* LookupBreakpoint(Isolate* isolate,
const char* id,
ObjectIdRing::LookupResult* result) {
*result = ObjectIdRing::kInvalid;
size_t end_pos = strcspn(id, "/");
if (end_pos == strlen(id)) {
return NULL;
}
const char* rest = id + end_pos + 1; // +1 for '/'.
if (strncmp("breakpoints", id, end_pos) == 0) {
intptr_t bpt_id = 0;
Breakpoint* bpt = NULL;
if (GetIntegerId(rest, &bpt_id)) {
bpt = isolate->debugger()->GetBreakpointById(bpt_id);
if (bpt != nullptr) {
*result = ObjectIdRing::kValid;
return bpt;
}
if (bpt_id < isolate->debugger()->limitBreakpointId()) {
*result = ObjectIdRing::kCollected;
return NULL;
}
}
}
return NULL;
}
static bool PrintInboundReferences(Thread* thread,
Object* target,
intptr_t limit,
JSONStream* js) {
ObjectGraph graph(thread);
Array& path = Array::Handle(Array::New(limit * 2));
intptr_t length = graph.InboundReferences(target, path);
JSONObject jsobj(js);
jsobj.AddProperty("type", "InboundReferences");
{
JSONArray elements(&jsobj, "references");
Object& source = Object::Handle();
Smi& slot_offset = Smi::Handle();
Class& source_class = Class::Handle();
Field& field = Field::Handle();
Array& parent_field_map = Array::Handle();
limit = Utils::Minimum(limit, length);
for (intptr_t i = 0; i < limit; ++i) {
JSONObject jselement(&elements);
source = path.At(i * 2);
slot_offset ^= path.At((i * 2) + 1);
jselement.AddProperty("source", source);
if (source.IsArray()) {
intptr_t element_index =
slot_offset.Value() - (Array::element_offset(0) >> kWordSizeLog2);
jselement.AddProperty("parentListIndex", element_index);
} else if (source.IsInstance()) {
source_class = source.clazz();
parent_field_map = source_class.OffsetToFieldMap();
intptr_t offset = slot_offset.Value();
if (offset > 0 && offset < parent_field_map.Length()) {
field ^= parent_field_map.At(offset);
jselement.AddProperty("parentField", field);
}
} else {
intptr_t element_index = slot_offset.Value();
jselement.AddProperty("_parentWordOffset", element_index);
}
}
}
// We nil out the array after generating the response to prevent
// reporting suprious references when repeatedly looking for the
// references to an object.
for (intptr_t i = 0; i < path.Length(); i++) {
path.SetAt(i, Object::null_object());
}
return true;
}
static const MethodParameter* get_inbound_references_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetInboundReferences(Thread* thread, JSONStream* js) {
const char* target_id = js->LookupParam("targetId");
if (target_id == NULL) {
PrintMissingParamError(js, "targetId");
return true;
}
const char* limit_cstr = js->LookupParam("limit");
if (limit_cstr == NULL) {
PrintMissingParamError(js, "limit");
return true;
}
intptr_t limit;
if (!GetIntegerId(limit_cstr, &limit)) {
PrintInvalidParamError(js, "limit");
return true;
}
Object& obj = Object::Handle(thread->zone());
ObjectIdRing::LookupResult lookup_result;
{
HANDLESCOPE(thread);
obj = LookupHeapObject(thread, target_id, &lookup_result);
}
if (obj.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
return PrintInboundReferences(thread, &obj, limit, js);
}
static bool PrintRetainingPath(Thread* thread,
Object* obj,
intptr_t limit,
JSONStream* js) {
ObjectGraph graph(thread);
Array& path = Array::Handle(Array::New(limit * 2));
auto result = graph.RetainingPath(obj, path);
intptr_t length = result.length;
JSONObject jsobj(js);
jsobj.AddProperty("type", "RetainingPath");
jsobj.AddProperty("length", length);
jsobj.AddProperty("gcRootType", result.gc_root_type);
JSONArray elements(&jsobj, "elements");
Object& element = Object::Handle();
Smi& slot_offset = Smi::Handle();
Class& element_class = Class::Handle();
Array& element_field_map = Array::Handle();
LinkedHashMap& map = LinkedHashMap::Handle();
Array& map_data = Array::Handle();
Field& field = Field::Handle();
String& name = String::Handle();
limit = Utils::Minimum(limit, length);
for (intptr_t i = 0; i < limit; ++i) {
JSONObject jselement(&elements);
element = path.At(i * 2);
jselement.AddProperty("value", element);
// Interpret the word offset from parent as list index, map key
// or instance field.
if (i > 0) {
slot_offset ^= path.At((i * 2) - 1);
if (element.IsArray() || element.IsGrowableObjectArray()) {
intptr_t element_index =
slot_offset.Value() - (Array::element_offset(0) >> kWordSizeLog2);
jselement.AddProperty("parentListIndex", element_index);
} else if (element.IsLinkedHashMap()) {
map = static_cast<LinkedHashMapPtr>(path.At(i * 2));
map_data = map.data();
intptr_t element_index =
slot_offset.Value() - (Array::element_offset(0) >> kWordSizeLog2);
LinkedHashMap::Iterator iterator(map);
while (iterator.MoveNext()) {
if (iterator.CurrentKey() == map_data.At(element_index) ||
iterator.CurrentValue() == map_data.At(element_index)) {
element = iterator.CurrentKey();
jselement.AddProperty("parentMapKey", element);
break;
}
}
} else if (element.IsInstance()) {
element_class = element.clazz();
element_field_map = element_class.OffsetToFieldMap();
intptr_t offset = slot_offset.Value();
if (offset > 0 && offset < element_field_map.Length()) {
field ^= element_field_map.At(offset);
ASSERT(!field.IsNull());
// TODO(bkonyi): check for mapping between C++ name and Dart name (V8
// snapshot writer?)
name ^= field.name();
jselement.AddProperty("parentField", name.ToCString());
}
} else {
intptr_t element_index = slot_offset.Value();
jselement.AddProperty("_parentWordOffset", element_index);
}
}
}
// We nil out the array after generating the response to prevent
// reporting spurious references when looking for inbound references
// after looking for a retaining path.
for (intptr_t i = 0; i < path.Length(); i++) {
path.SetAt(i, Object::null_object());
}
return true;
}
static const MethodParameter* get_retaining_path_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetRetainingPath(Thread* thread, JSONStream* js) {
const char* target_id = js->LookupParam("targetId");
if (target_id == NULL) {
PrintMissingParamError(js, "targetId");
return true;
}
const char* limit_cstr = js->LookupParam("limit");
if (limit_cstr == NULL) {
PrintMissingParamError(js, "limit");
return true;
}
intptr_t limit;
if (!GetIntegerId(limit_cstr, &limit)) {
PrintInvalidParamError(js, "limit");
return true;
}
Object& obj = Object::Handle(thread->zone());
ObjectIdRing::LookupResult lookup_result;
{
HANDLESCOPE(thread);
obj = LookupHeapObject(thread, target_id, &lookup_result);
}
if (obj.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
return PrintRetainingPath(thread, &obj, limit, js);
}
static const MethodParameter* get_retained_size_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("targetId", true),
NULL,
};
static bool GetRetainedSize(Thread* thread, JSONStream* js) {
const char* target_id = js->LookupParam("targetId");
ASSERT(target_id != NULL);
ObjectIdRing::LookupResult lookup_result;
Object& obj =
Object::Handle(LookupHeapObject(thread, target_id, &lookup_result));
if (obj.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
// TODO(rmacnak): There is no way to get the size retained by a class object.
// SizeRetainedByClass should be a separate RPC.
if (obj.IsClass()) {
const Class& cls = Class::Cast(obj);
ObjectGraph graph(thread);
intptr_t retained_size = graph.SizeRetainedByClass(cls.id());
const Object& result = Object::Handle(Integer::New(retained_size));
result.PrintJSON(js, true);
return true;
}
ObjectGraph graph(thread);
intptr_t retained_size = graph.SizeRetainedByInstance(obj);
const Object& result = Object::Handle(Integer::New(retained_size));
result.PrintJSON(js, true);
return true;
}
static const MethodParameter* get_reachable_size_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("targetId", true),
NULL,
};
static bool GetReachableSize(Thread* thread, JSONStream* js) {
const char* target_id = js->LookupParam("targetId");
ASSERT(target_id != NULL);
ObjectIdRing::LookupResult lookup_result;
Object& obj =
Object::Handle(LookupHeapObject(thread, target_id, &lookup_result));
if (obj.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
// TODO(rmacnak): There is no way to get the size retained by a class object.
// SizeRetainedByClass should be a separate RPC.
if (obj.IsClass()) {
const Class& cls = Class::Cast(obj);
ObjectGraph graph(thread);
intptr_t retained_size = graph.SizeReachableByClass(cls.id());
const Object& result = Object::Handle(Integer::New(retained_size));
result.PrintJSON(js, true);
return true;
}
ObjectGraph graph(thread);
intptr_t retained_size = graph.SizeReachableByInstance(obj);
const Object& result = Object::Handle(Integer::New(retained_size));
result.PrintJSON(js, true);
return true;
}
static const MethodParameter* invoke_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool Invoke(Thread* thread, JSONStream* js) {
const char* receiver_id = js->LookupParam("targetId");
if (receiver_id == NULL) {
PrintMissingParamError(js, "targetId");
return true;
}
const char* selector_cstr = js->LookupParam("selector");
if (selector_cstr == NULL) {
PrintMissingParamError(js, "selector");
return true;
}
const char* argument_ids = js->LookupParam("argumentIds");
if (argument_ids == NULL) {
PrintMissingParamError(js, "argumentIds");
return true;
}
#if !defined(DART_PRECOMPILED_RUNTIME)
bool disable_breakpoints =
BoolParameter::Parse(js->LookupParam("disableBreakpoints"), false);
DisableBreakpointsScope db(thread->isolate()->debugger(),
disable_breakpoints);
#endif
Zone* zone = thread->zone();
ObjectIdRing::LookupResult lookup_result;
Object& receiver = Object::Handle(
zone, LookupHeapObject(thread, receiver_id, &lookup_result));
if (receiver.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
const GrowableObjectArray& growable_args =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
bool is_instance = (receiver.IsInstance() || receiver.IsNull()) &&
!ContainsNonInstance(receiver);
if (is_instance) {
growable_args.Add(receiver);
}
intptr_t n = strlen(argument_ids);
if ((n < 2) || (argument_ids[0] != '[') || (argument_ids[n - 1] != ']')) {
PrintInvalidParamError(js, "argumentIds");
return true;
}
if (n > 2) {
intptr_t start = 1;
while (start < n) {
intptr_t end = start;
while ((argument_ids[end + 1] != ',') && (argument_ids[end + 1] != ']')) {
end++;
}
if (end == start) {
// Empty element.
PrintInvalidParamError(js, "argumentIds");
return true;
}
const char* argument_id =
zone->MakeCopyOfStringN(&argument_ids[start], end - start + 1);
ObjectIdRing::LookupResult lookup_result;
Object& argument = Object::Handle(
zone, LookupHeapObject(thread, argument_id, &lookup_result));
// Invoke only accepts Instance arguments.
if (!(argument.IsInstance() || argument.IsNull()) ||
ContainsNonInstance(argument)) {
PrintInvalidParamError(js, "argumentIds");
return true;
}
if (argument.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "argumentIds");
}
return true;
}
growable_args.Add(argument);
start = end + 3;
}
}
const String& selector = String::Handle(zone, String::New(selector_cstr));
const Array& args =
Array::Handle(zone, Array::MakeFixedLength(growable_args));
const Array& arg_names = Object::empty_array();
if (receiver.IsLibrary()) {
const Library& lib = Library::Cast(receiver);
const Object& result =
Object::Handle(zone, lib.Invoke(selector, args, arg_names));
result.PrintJSON(js, true);
return true;
}
if (receiver.IsClass()) {
const Class& cls = Class::Cast(receiver);
const Object& result =
Object::Handle(zone, cls.Invoke(selector, args, arg_names));
result.PrintJSON(js, true);
return true;
}
if (is_instance) {
// We don't use Instance::Cast here because it doesn't allow null.
Instance& instance = Instance::Handle(zone);
instance ^= receiver.raw();
const Object& result =
Object::Handle(zone, instance.Invoke(selector, args, arg_names));
result.PrintJSON(js, true);
return true;
}
js->PrintError(kInvalidParams,
"%s: invalid 'targetId' parameter: "
"Cannot invoke against a VM-internal object",
js->method());
return true;
}
static const MethodParameter* evaluate_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool IsAlpha(char c) {
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
}
static bool IsAlphaOrDollar(char c) {
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c == '$');
}
static bool IsAlphaNum(char c) {
return (c >= '0' && c <= '9') || IsAlpha(c);
}
static bool IsAlphaNumOrDollar(char c) {
return (c >= '0' && c <= '9') || IsAlphaOrDollar(c);
}
static bool IsWhitespace(char c) {
return c <= ' ';
}
static bool IsObjectIdChar(char c) {
return IsAlphaNum(c) || c == '/' || c == '-' || c == '@' || c == '%';
}
// TODO(vm-service): Consider whether we should pass structured objects in
// service messages instead of always flattening them to C strings.
static bool ParseScope(const char* scope,
GrowableArray<const char*>* names,
GrowableArray<const char*>* ids) {
Zone* zone = Thread::Current()->zone();
const char* c = scope;
if (*c++ != '{') return false;
for (;;) {
while (IsWhitespace(*c)) {
c++;
}
if (*c == '}') return true;
const char* name = c;
if (!IsAlphaOrDollar(*c)) return false;
while (IsAlphaNumOrDollar(*c)) {
c++;
}
names->Add(zone->MakeCopyOfStringN(name, c - name));
while (IsWhitespace(*c)) {
c++;
}
if (*c++ != ':') return false;
while (IsWhitespace(*c)) {
c++;
}
const char* id = c;
if (!IsObjectIdChar(*c)) return false;
while (IsObjectIdChar(*c)) {
c++;
}
ids->Add(zone->MakeCopyOfStringN(id, c - id));
while (IsWhitespace(*c)) {
c++;
}
if (*c == ',') c++;
}
return false;
}
static bool BuildScope(Thread* thread,
JSONStream* js,
const GrowableObjectArray& names,
const GrowableObjectArray& values) {
const char* scope = js->LookupParam("scope");
GrowableArray<const char*> cnames;
GrowableArray<const char*> cids;
if (scope != NULL) {
if (!ParseScope(scope, &cnames, &cids)) {
PrintInvalidParamError(js, "scope");
return true;
}
String& name = String::Handle();
Object& obj = Object::Handle();
for (intptr_t i = 0; i < cids.length(); i++) {
ObjectIdRing::LookupResult lookup_result;
obj = LookupHeapObject(thread, cids[i], &lookup_result);
if (obj.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
if ((!obj.IsInstance() && !obj.IsNull()) || ContainsNonInstance(obj)) {
js->PrintError(kInvalidParams,
"%s: invalid scope 'targetId' parameter: "
"Cannot evaluate against a VM-internal object",
js->method());
return true;
}
name = String::New(cnames[i]);
names.Add(name);
values.Add(obj);
}
}
return false;
}
static bool Evaluate(Thread* thread, JSONStream* js) {
// If a compilation service is available, this RPC invocation will have been
// intercepted by RunningIsolates.routeRequest.
js->PrintError(
kExpressionCompilationError,
"%s: No compilation service available; cannot evaluate from source.",
js->method());
return true;
}
static const MethodParameter* build_expression_evaluation_scope_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("frameIndex", false),
new IdParameter("targetId", false),
NULL,
};
static bool BuildExpressionEvaluationScope(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
Isolate* isolate = thread->isolate();
DebuggerStackTrace* stack = isolate->debugger()->StackTrace();
intptr_t framePos = UIntParameter::Parse(js->LookupParam("frameIndex"));
if (framePos >= stack->Length()) {
PrintInvalidParamError(js, "frameIndex");
return true;
}
Zone* zone = thread->zone();
const GrowableObjectArray& param_names =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
const GrowableObjectArray& param_values =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
const GrowableObjectArray& type_params_names =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
String& klass_name = String::Handle(zone);
String& library_uri = String::Handle(zone);
bool isStatic = false;
if (BuildScope(thread, js, param_names, param_values)) {
return true;
}
if (js->HasParam("frameIndex")) {
// building scope in the context of a given frame
DebuggerStackTrace* stack = isolate->debugger()->StackTrace();
intptr_t framePos = UIntParameter::Parse(js->LookupParam("frameIndex"));
if (framePos >= stack->Length()) {
PrintInvalidParamError(js, "frameIndex");
return true;
}
ActivationFrame* frame = stack->FrameAt(framePos);
frame->BuildParameters(param_names, param_values, type_params_names);
if (frame->function().is_static()) {
const Class& cls = Class::Handle(zone, frame->function().Owner());
if (!cls.IsTopLevel()) {
klass_name = cls.UserVisibleName();
}
library_uri = Library::Handle(zone, cls.library()).url();
isStatic = true;
} else {
const Class& method_cls = Class::Handle(zone, frame->function().origin());
library_uri = Library::Handle(zone, method_cls.library()).url();
klass_name = method_cls.UserVisibleName();
isStatic = false;
}
} else {
// building scope in the context of a given object
if (!js->HasParam("targetId")) {
js->PrintError(kInvalidParams,
"Either targetId or frameIndex has to be provided.");
return true;
}
const char* target_id = js->LookupParam("targetId");
ObjectIdRing::LookupResult lookup_result;
Object& obj = Object::Handle(
zone, LookupHeapObject(thread, target_id, &lookup_result));
if (obj.raw() == Object::sentinel().raw()) {
PrintInvalidParamError(js, "targetId");
return true;
}
if (obj.IsLibrary()) {
const Library& lib = Library::Cast(obj);
library_uri = lib.url();
isStatic = true;
} else if (obj.IsClass() || ((obj.IsInstance() || obj.IsNull()) &&
!ContainsNonInstance(obj))) {
Class& cls = Class::Handle(zone);
if (obj.IsClass()) {
cls ^= obj.raw();
isStatic = true;
} else {
Instance& instance = Instance::Handle(zone);
instance ^= obj.raw();
cls = instance.clazz();
isStatic = false;
}
if (!cls.IsTopLevel() &&
(cls.id() < kInstanceCid || cls.id() == kTypeArgumentsCid)) {
js->PrintError(
kInvalidParams,
"Expressions can be evaluated only with regular Dart instances");
return true;
}
if (!cls.IsTopLevel()) {
klass_name = cls.UserVisibleName();
}
library_uri = Library::Handle(zone, cls.library()).url();
} else {
js->PrintError(kInvalidParams,
"%s: invalid 'targetId' parameter: "
"Cannot evaluate against a VM-internal object",
js->method());
}
}
JSONObject report(js);
{
JSONArray jsonParamNames(&report, "param_names");
String& param_name = String::Handle(zone);
for (intptr_t i = 0; i < param_names.Length(); i++) {
param_name ^= param_names.At(i);
jsonParamNames.AddValue(param_name.ToCString());
}
}
{
JSONArray jsonTypeParamsNames(&report, "type_params_names");
String& type_param_name = String::Handle(zone);
for (intptr_t i = 0; i < type_params_names.Length(); i++) {
type_param_name ^= type_params_names.At(i);
jsonTypeParamsNames.AddValue(type_param_name.ToCString());
}
}
report.AddProperty("libraryUri", library_uri.ToCString());
if (!klass_name.IsNull()) {
report.AddProperty("klass", klass_name.ToCString());
}
report.AddProperty("isStatic", isStatic);
return true;
}
#if !defined(DART_PRECOMPILED_RUNTIME)
// Parse comma-separated list of values, put them into values
static bool ParseCSVList(const char* csv_list,
const GrowableObjectArray& values) {
Zone* zone = Thread::Current()->zone();
String& s = String::Handle(zone);
const char* c = csv_list;
if (*c++ != '[') return false;
while (IsWhitespace(*c) && *c != '\0') {
c++;
}
while (*c != '\0') {
const char* value = c;
while (*c != '\0' && *c != ']' && *c != ',' && !IsWhitespace(*c)) {
c++;
}
if (c > value) {
s = String::New(zone->MakeCopyOfStringN(value, c - value));
values.Add(s);
}
switch (*c) {
case '\0':
return false;
case ',':
c++;
break;
case ']':
return true;
}
while (IsWhitespace(*c) && *c != '\0') {
c++;
}
}
return false;
}
#endif
static const MethodParameter* compile_expression_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new StringParameter("expression", true),
new StringParameter("definitions", false),
new StringParameter("typeDefinitions", false),
new StringParameter("libraryUri", true),
new StringParameter("klass", false),
new BoolParameter("isStatic", false),
NULL,
};
static bool CompileExpression(Thread* thread, JSONStream* js) {
#if defined(DART_PRECOMPILED_RUNTIME)
js->PrintError(kFeatureDisabled, "Debugger is disabled in AOT mode.");
return true;
#else
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
if (!KernelIsolate::IsRunning() && !KernelIsolate::Start()) {
js->PrintError(
kExpressionCompilationError,
"%s: No compilation service available; cannot evaluate from source.",
js->method());
return true;
}
const char* klass = js->LookupParam("klass");
bool is_static =
BoolParameter::Parse(js->LookupParam("isStatic"), (klass == nullptr));
const GrowableObjectArray& params =
GrowableObjectArray::Handle(thread->zone(), GrowableObjectArray::New());
if (!ParseCSVList(js->LookupParam("definitions"), params)) {
PrintInvalidParamError(js, "definitions");
return true;
}
const GrowableObjectArray& type_params =
GrowableObjectArray::Handle(thread->zone(), GrowableObjectArray::New());
if (!ParseCSVList(js->LookupParam("typeDefinitions"), type_params)) {
PrintInvalidParamError(js, "typedDefinitions");
return true;
}
const uint8_t* kernel_buffer = Service::dart_library_kernel();
const intptr_t kernel_buffer_len = Service::dart_library_kernel_length();
Dart_KernelCompilationResult compilation_result =
KernelIsolate::CompileExpressionToKernel(
kernel_buffer, kernel_buffer_len, js->LookupParam("expression"),
Array::Handle(Array::MakeFixedLength(params)),
Array::Handle(Array::MakeFixedLength(type_params)),
js->LookupParam("libraryUri"), js->LookupParam("klass"), is_static);
if (compilation_result.status != Dart_KernelCompilationStatus_Ok) {
js->PrintError(kExpressionCompilationError, "%s", compilation_result.error);
free(compilation_result.error);
return true;
}
const uint8_t* kernel_bytes = compilation_result.kernel;
intptr_t kernel_length = compilation_result.kernel_size;
ASSERT(kernel_bytes != NULL);
JSONObject report(js);
report.AddPropertyBase64("kernelBytes", kernel_bytes, kernel_length);
return true;
#endif
}
static const MethodParameter* evaluate_compiled_expression_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new UIntParameter("frameIndex", false),
new IdParameter("targetId", false),
new StringParameter("kernelBytes", true),
NULL,
};
ExternalTypedDataPtr DecodeKernelBuffer(const char* kernel_buffer_base64) {
intptr_t kernel_length;
uint8_t* kernel_buffer = DecodeBase64(kernel_buffer_base64, &kernel_length);
return ExternalTypedData::NewFinalizeWithFree(kernel_buffer, kernel_length);
}
static bool EvaluateCompiledExpression(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
Isolate* isolate = thread->isolate();
bool disable_breakpoints =
BoolParameter::Parse(js->LookupParam("disableBreakpoints"), false);
DisableBreakpointsScope db(isolate->debugger(), disable_breakpoints);
DebuggerStackTrace* stack = isolate->debugger()->StackTrace();
intptr_t frame_pos = UIntParameter::Parse(js->LookupParam("frameIndex"));
if (frame_pos >= stack->Length()) {
PrintInvalidParamError(js, "frameIndex");
return true;
}
Zone* zone = thread->zone();
const GrowableObjectArray& param_names =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
const GrowableObjectArray& param_values =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
if (BuildScope(thread, js, param_names, param_values)) {
return true;
}
const GrowableObjectArray& type_params_names =
GrowableObjectArray::Handle(zone, GrowableObjectArray::New());
const ExternalTypedData& kernel_data = ExternalTypedData::Handle(
zone, DecodeKernelBuffer(js->LookupParam("kernelBytes")));
if (js->HasParam("frameIndex")) {
DebuggerStackTrace* stack = isolate->debugger()->StackTrace();
intptr_t frame_pos = UIntParameter::Parse(js->LookupParam("frameIndex"));
if (frame_pos >= stack->Length()) {
PrintInvalidParamError(js, "frameIndex");
return true;
}
ActivationFrame* frame = stack->FrameAt(frame_pos);
TypeArguments& type_arguments = TypeArguments::Handle(
zone,
frame->BuildParameters(param_names, param_values, type_params_names));
const Object& result = Object::Handle(
zone,
frame->EvaluateCompiledExpression(
kernel_data,
Array::Handle(zone, Array::MakeFixedLength(type_params_names)),
Array::Handle(zone, Array::MakeFixedLength(param_values)),
type_arguments));
result.PrintJSON(js, true);
return true;
} else {
// evaluating expression in the context of a given object
if (!js->HasParam("targetId")) {
js->PrintError(kInvalidParams,
"Either targetId or frameIndex has to be provided.");
return true;
}
const char* target_id = js->LookupParam("targetId");
ObjectIdRing::LookupResult lookup_result;
Object& obj = Object::Handle(
zone, LookupHeapObject(thread, target_id, &lookup_result));
if (obj.raw() == Object::sentinel().raw()) {
if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
} else {
PrintInvalidParamError(js, "targetId");
}
return true;
}
TypeArguments& type_arguments = TypeArguments::Handle(zone);
if (obj.IsLibrary()) {
const Library& lib = Library::Cast(obj);
const Object& result = Object::Handle(
zone,
lib.EvaluateCompiledExpression(
kernel_data,
Array::Handle(zone, Array::MakeFixedLength(type_params_names)),
Array::Handle(zone, Array::MakeFixedLength(param_values)),
type_arguments));
result.PrintJSON(js, true);
return true;
}
if (obj.IsClass()) {
const Class& cls = Class::Cast(obj);
const Object& result = Object::Handle(
zone,
cls.EvaluateCompiledExpression(
kernel_data,
Array::Handle(zone, Array::MakeFixedLength(type_params_names)),
Array::Handle(zone, Array::MakeFixedLength(param_values)),
type_arguments));
result.PrintJSON(js, true);
return true;
}
if ((obj.IsInstance() || obj.IsNull()) && !ContainsNonInstance(obj)) {
// We don't use Instance::Cast here because it doesn't allow null.
Instance& instance = Instance::Handle(zone);
instance ^= obj.raw();
const Class& receiver_cls = Class::Handle(zone, instance.clazz());
const Object& result = Object::Handle(
zone,
instance.EvaluateCompiledExpression(
receiver_cls, kernel_data,
Array::Handle(zone, Array::MakeFixedLength(type_params_names)),
Array::Handle(zone, Array::MakeFixedLength(param_values)),
type_arguments));
result.PrintJSON(js, true);
return true;
}
js->PrintError(kInvalidParams,
"%s: invalid 'targetId' parameter: "
"Cannot evaluate against a VM-internal object",
js->method());
return true;
}
}
static const MethodParameter* evaluate_in_frame_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new UIntParameter("frameIndex", true),
new MethodParameter("expression", true),
NULL,
};
static bool EvaluateInFrame(Thread* thread, JSONStream* js) {
// If a compilation service is available, this RPC invocation will have been
// intercepted by RunningIsolates.routeRequest.
js->PrintError(
kExpressionCompilationError,
"%s: No compilation service available; cannot evaluate from source.",
js->method());
return true;
}
class GetInstancesVisitor : public ObjectGraph::Visitor {
public:
GetInstancesVisitor(const Class& cls,
ZoneGrowableHandlePtrArray<Object>* storage,
intptr_t limit)
: cls_(cls), storage_(storage), limit_(limit), count_(0) {}
virtual Direction VisitObject(ObjectGraph::StackIterator* it) {
ObjectPtr raw_obj = it->Get();
if (raw_obj->IsPseudoObject()) {
return kProceed;
}
Thread* thread = Thread::Current();
REUSABLE_OBJECT_HANDLESCOPE(thread);
Object& obj = thread->ObjectHandle();
obj = raw_obj;
if (obj.GetClassId() == cls_.id()) {
if (count_ < limit_) {
storage_->Add(Object::Handle(raw_obj));
}
++count_;
}
return kProceed;
}
intptr_t count() const { return count_; }
private:
const Class& cls_;
ZoneGrowableHandlePtrArray<Object>* storage_;
const intptr_t limit_;
intptr_t count_;
};
static const MethodParameter* get_instances_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetInstances(Thread* thread, JSONStream* js) {
const char* object_id = js->LookupParam("objectId");
if (object_id == NULL) {
PrintMissingParamError(js, "objectId");
return true;
}
const char* limit_cstr = js->LookupParam("limit");
if (limit_cstr == NULL) {
PrintMissingParamError(js, "limit");
return true;
}
intptr_t limit;
if (!GetIntegerId(limit_cstr, &limit)) {
PrintInvalidParamError(js, "limit");
return true;
}
const Object& obj = Object::Handle(LookupHeapObject(thread, object_id, NULL));
if (obj.raw() == Object::sentinel().raw() || !obj.IsClass()) {
PrintInvalidParamError(js, "objectId");
return true;
}
const Class& cls = Class::Cast(obj);
// Ensure the array and handles created below are promptly destroyed.
StackZone zone(thread);
HANDLESCOPE(thread);
ZoneGrowableHandlePtrArray<Object> storage(thread->zone(), limit);
GetInstancesVisitor visitor(cls, &storage, limit);
{
ObjectGraph graph(thread);
HeapIterationScope iteration_scope(Thread::Current(), true);
graph.IterateObjects(&visitor);
}
intptr_t count = visitor.count();
JSONObject jsobj(js);
jsobj.AddProperty("type", "InstanceSet");
jsobj.AddProperty("totalCount", count);
{
JSONArray samples(&jsobj, "instances");
for (int i = 0; (i < limit) && (i < count); i++) {
samples.AddValue(storage.At(i));
}
}
return true;
}
static const MethodParameter* get_ports_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetPorts(Thread* thread, JSONStream* js) {
// Ensure the array and handles created below are promptly destroyed.
StackZone zone(thread);
HANDLESCOPE(thread);
const GrowableObjectArray& ports = GrowableObjectArray::Handle(
GrowableObjectArray::RawCast(DartLibraryCalls::LookupOpenPorts()));
JSONObject jsobj(js);
jsobj.AddProperty("type", "PortList");
{
Instance& port = Instance::Handle(zone.GetZone());
JSONArray arr(&jsobj, "ports");
for (int i = 0; i < ports.Length(); ++i) {
port ^= ports.At(i);
arr.AddValue(port);
}
}
return true;
}
#if !defined(DART_PRECOMPILED_RUNTIME)
static const char* const report_enum_names[] = {
SourceReport::kCallSitesStr,
SourceReport::kCoverageStr,
SourceReport::kPossibleBreakpointsStr,
SourceReport::kProfileStr,
NULL,
};
#endif
static const MethodParameter* get_source_report_params[] = {
#if !defined(DART_PRECOMPILED_RUNTIME)
RUNNABLE_ISOLATE_PARAMETER,
new EnumListParameter("reports", true, report_enum_names),
new IdParameter("scriptId", false),
new UIntParameter("tokenPos", false),
new UIntParameter("endTokenPos", false),
new BoolParameter("forceCompile", false),
#endif
NULL,
};
static bool GetSourceReport(Thread* thread, JSONStream* js) {
#if defined(DART_PRECOMPILED_RUNTIME)
js->PrintError(kFeatureDisabled, "disabled in AOT mode and PRODUCT.");
return false;
#else
if (CheckCompilerDisabled(thread, js)) {
return true;
}
const char* reports_str = js->LookupParam("reports");
const EnumListParameter* reports_parameter =
static_cast<const EnumListParameter*>(get_source_report_params[1]);
const char** reports = reports_parameter->Parse(thread->zone(), reports_str);
intptr_t report_set = 0;
while (*reports != NULL) {
if (strcmp(*reports, SourceReport::kCallSitesStr) == 0) {
report_set |= SourceReport::kCallSites;
} else if (strcmp(*reports, SourceReport::kCoverageStr) == 0) {
report_set |= SourceReport::kCoverage;
} else if (strcmp(*reports, SourceReport::kPossibleBreakpointsStr) == 0) {
report_set |= SourceReport::kPossibleBreakpoints;
} else if (strcmp(*reports, SourceReport::kProfileStr) == 0) {
report_set |= SourceReport::kProfile;
}
reports++;
}
SourceReport::CompileMode compile_mode = SourceReport::kNoCompile;
if (BoolParameter::Parse(js->LookupParam("forceCompile"), false)) {
compile_mode = SourceReport::kForceCompile;
}
Script& script = Script::Handle();
intptr_t start_pos = UIntParameter::Parse(js->LookupParam("tokenPos"));
intptr_t end_pos = UIntParameter::Parse(js->LookupParam("endTokenPos"));
if (js->HasParam("scriptId")) {
// Get the target script.
const char* script_id_param = js->LookupParam("scriptId");
const Object& obj =
Object::Handle(LookupHeapObject(thread, script_id_param, NULL));
if (obj.raw() == Object::sentinel().raw() || !obj.IsScript()) {
PrintInvalidParamError(js, "scriptId");
return true;
}
script ^= obj.raw();
} else {
if (js->HasParam("tokenPos")) {
js->PrintError(
kInvalidParams,
"%s: the 'tokenPos' parameter requires the 'scriptId' parameter",
js->method());
return true;
}
if (js->HasParam("endTokenPos")) {
js->PrintError(
kInvalidParams,
"%s: the 'endTokenPos' parameter requires the 'scriptId' parameter",
js->method());
return true;
}
}
SourceReport report(report_set, compile_mode);
report.PrintJSON(js, script, TokenPosition(start_pos),
TokenPosition(end_pos));
return true;
#endif // !DART_PRECOMPILED_RUNTIME
}
static const MethodParameter* reload_sources_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new BoolParameter("force", false),
new BoolParameter("pause", false),
new StringParameter("rootLibUri", false),
new StringParameter("packagesUri", false),
NULL,
};
static bool ReloadSources(Thread* thread, JSONStream* js) {
#if defined(DART_PRECOMPILED_RUNTIME)
js->PrintError(kFeatureDisabled, "Compiler is disabled in AOT mode.");
return true;
#else
if (CheckCompilerDisabled(thread, js)) {
return true;
}
IsolateGroup* isolate_group = thread->isolate_group();
if (isolate_group->library_tag_handler() == nullptr) {
js->PrintError(kFeatureDisabled,
"A library tag handler must be installed.");
return true;
}
// TODO(dartbug.com/36097): We need to change the "reloadSources" service-api
// call to accept an isolate group instead of an isolate.
Isolate* isolate = thread->isolate();
if ((isolate->sticky_error() != Error::null()) ||
(Thread::Current()->sticky_error() != Error::null())) {
js->PrintError(kIsolateReloadBarred,
"This isolate cannot reload sources anymore because there "
"was an unhandled exception error. Restart the isolate.");
return true;
}
if (isolate_group->IsReloading()) {
js->PrintError(kIsolateIsReloading, "This isolate is being reloaded.");
return true;
}
if (!isolate->CanReload()) {
js->PrintError(kFeatureDisabled,
"This isolate cannot reload sources right now.");
return true;
}
const bool force_reload =
BoolParameter::Parse(js->LookupParam("force"), false);
isolate_group->ReloadSources(js, force_reload, js->LookupParam("rootLibUri"),
js->LookupParam("packagesUri"));
Service::CheckForPause(isolate, js);
return true;
#endif
}
void Service::CheckForPause(Isolate* isolate, JSONStream* stream) {
// Should we pause?
isolate->set_should_pause_post_service_request(
BoolParameter::Parse(stream->LookupParam("pause"), false));
}
ErrorPtr Service::MaybePause(Isolate* isolate, const Error& error) {
// Don't pause twice.
if (!isolate->IsPaused()) {
if (isolate->should_pause_post_service_request()) {
isolate->set_should_pause_post_service_request(false);
if (!error.IsNull()) {
// Before pausing, restore the sticky error. The debugger will return it
// from PausePostRequest.
Thread::Current()->set_sticky_error(error);
}
return isolate->PausePostRequest();
}
}
return error.raw();
}
static bool AddBreakpointCommon(Thread* thread,
JSONStream* js,
const String& script_uri) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
const char* line_param = js->LookupParam("line");
intptr_t line = UIntParameter::Parse(line_param);
const char* col_param = js->LookupParam("column");
intptr_t col = -1;
if (col_param != NULL) {
col = UIntParameter::Parse(col_param);
if (col == 0) {
// Column number is 1-based.
PrintInvalidParamError(js, "column");
return true;
}
}
ASSERT(!script_uri.IsNull());
Breakpoint* bpt = NULL;
bpt = thread->isolate()->debugger()->SetBreakpointAtLineCol(script_uri, line,
col);
if (bpt == NULL) {
js->PrintError(kCannotAddBreakpoint,
"%s: Cannot add breakpoint at line '%s'", js->method(),
line_param);
return true;
}
bpt->PrintJSON(js);
return true;
}
static const MethodParameter* add_breakpoint_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("scriptId", true),
new UIntParameter("line", true),
new UIntParameter("column", false),
NULL,
};
static bool AddBreakpoint(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
const char* script_id_param = js->LookupParam("scriptId");
Object& obj = Object::Handle(LookupHeapObject(thread, script_id_param, NULL));
if (obj.raw() == Object::sentinel().raw() || !obj.IsScript()) {
PrintInvalidParamError(js, "scriptId");
return true;
}
const Script& script = Script::Cast(obj);
const String& script_uri = String::Handle(script.url());
ASSERT(!script_uri.IsNull());
return AddBreakpointCommon(thread, js, script_uri);
}
static const MethodParameter* add_breakpoint_with_script_uri_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("scriptUri", true),
new UIntParameter("line", true),
new UIntParameter("column", false),
NULL,
};
static bool AddBreakpointWithScriptUri(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
const char* script_uri_param = js->LookupParam("scriptUri");
const String& script_uri = String::Handle(String::New(script_uri_param));
return AddBreakpointCommon(thread, js, script_uri);
}
static const MethodParameter* add_breakpoint_at_entry_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("functionId", true),
NULL,
};
static bool AddBreakpointAtEntry(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
const char* function_id = js->LookupParam("functionId");
Object& obj = Object::Handle(LookupHeapObject(thread, function_id, NULL));
if (obj.raw() == Object::sentinel().raw() || !obj.IsFunction()) {
PrintInvalidParamError(js, "functionId");
return true;
}
const Function& function = Function::Cast(obj);
Breakpoint* bpt =
thread->isolate()->debugger()->SetBreakpointAtEntry(function, false);
if (bpt == NULL) {
js->PrintError(kCannotAddBreakpoint,
"%s: Cannot add breakpoint at function '%s'", js->method(),
function.ToCString());
return true;
}
bpt->PrintJSON(js);
return true;
}
static const MethodParameter* add_breakpoint_at_activation_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("objectId", true),
NULL,
};
static bool AddBreakpointAtActivation(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
const char* object_id = js->LookupParam("objectId");
Object& obj = Object::Handle(LookupHeapObject(thread, object_id, NULL));
if (obj.raw() == Object::sentinel().raw() || !obj.IsInstance()) {
PrintInvalidParamError(js, "objectId");
return true;
}
const Instance& closure = Instance::Cast(obj);
Breakpoint* bpt =
thread->isolate()->debugger()->SetBreakpointAtActivation(closure, false);
if (bpt == NULL) {
js->PrintError(kCannotAddBreakpoint,
"%s: Cannot add breakpoint at activation", js->method());
return true;
}
bpt->PrintJSON(js);
return true;
}
static const MethodParameter* remove_breakpoint_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool RemoveBreakpoint(Thread* thread, JSONStream* js) {
if (CheckDebuggerDisabled(thread, js)) {
return true;
}
if (!js->HasParam("breakpointId")) {
PrintMissingParamError(js, "breakpointId");
return true;
}
const char* bpt_id = js->LookupParam("breakpointId");
ObjectIdRing::LookupResult lookup_result;
Isolate* isolate = thread->isolate();
Breakpoint* bpt = LookupBreakpoint(isolate, bpt_id, &lookup_result);
// TODO(turnidge): Should we return a different error for bpts whic
// have been already removed?
if (bpt == NULL) {
PrintInvalidParamError(js, "breakpointId");
return true;
}
isolate->debugger()->RemoveBreakpoint(bpt->id());
PrintSuccess(js);
return true;
}
static ClassPtr GetMetricsClass(Thread* thread) {
Zone* zone = thread->zone();
const Library& prof_lib = Library::Handle(zone, Library::DeveloperLibrary());
ASSERT(!prof_lib.IsNull());
const String& metrics_cls_name = String::Handle(zone, String::New("Metrics"));
ASSERT(!metrics_cls_name.IsNull());
const Class& metrics_cls =
Class::Handle(zone, prof_lib.LookupClass(metrics_cls_name));
ASSERT(!metrics_cls.IsNull());
return metrics_cls.raw();
}
static bool HandleNativeMetricsList(Thread* thread, JSONStream* js) {
JSONObject obj(js);
obj.AddProperty("type", "MetricList");
{
JSONArray metrics(&obj, "metrics");
auto isolate = thread->isolate();
#define ADD_METRIC(type, variable, name, unit) \
metrics.AddValue(isolate->Get##variable##Metric());
ISOLATE_METRIC_LIST(ADD_METRIC);
#undef ADD_METRIC
auto isolate_group = thread->isolate_group();
#define ADD_METRIC(type, variable, name, unit) \
metrics.AddValue(isolate_group->Get##variable##Metric());
ISOLATE_GROUP_METRIC_LIST(ADD_METRIC);
#undef ADD_METRIC
}
return true;
}
static bool HandleNativeMetric(Thread* thread, JSONStream* js, const char* id) {
auto isolate = thread->isolate();
#define ADD_METRIC(type, variable, name, unit) \
if (strcmp(id, name) == 0) { \
isolate->Get##variable##Metric()->PrintJSON(js); \
return true; \
}
ISOLATE_METRIC_LIST(ADD_METRIC);
#undef ADD_METRIC
auto isolate_group = thread->isolate_group();
#define ADD_METRIC(type, variable, name, unit) \
if (strcmp(id, name) == 0) { \
isolate_group->Get##variable##Metric()->PrintJSON(js); \
return true; \
}
ISOLATE_GROUP_METRIC_LIST(ADD_METRIC);
#undef ADD_METRIC
PrintInvalidParamError(js, "metricId");
return true;
}
static bool HandleDartMetricsList(Thread* thread, JSONStream* js) {
Zone* zone = thread->zone();
const Class& metrics_cls = Class::Handle(zone, GetMetricsClass(thread));
const String& print_metrics_name =
String::Handle(String::New("_printMetrics"));
ASSERT(!print_metrics_name.IsNull());
const Function& print_metrics = Function::Handle(
zone, metrics_cls.LookupStaticFunctionAllowPrivate(print_metrics_name));
ASSERT(!print_metrics.IsNull());
const Array& args = Object::empty_array();
const Object& result =
Object::Handle(zone, DartEntry::InvokeFunction(print_metrics, args));
ASSERT(!result.IsNull());
ASSERT(result.IsString());
TextBuffer* buffer = js->buffer();
buffer->AddString(String::Cast(result).ToCString());
return true;
}
static bool HandleDartMetric(Thread* thread, JSONStream* js, const char* id) {
Zone* zone = thread->zone();
const Class& metrics_cls = Class::Handle(zone, GetMetricsClass(thread));
const String& print_metric_name = String::Handle(String::New("_printMetric"));
ASSERT(!print_metric_name.IsNull());
const Function& print_metric = Function::Handle(
zone, metrics_cls.LookupStaticFunctionAllowPrivate(print_metric_name));
ASSERT(!print_metric.IsNull());
const String& arg0 = String::Handle(String::New(id));
ASSERT(!arg0.IsNull());
const Array& args = Array::Handle(Array::New(1));
ASSERT(!args.IsNull());
args.SetAt(0, arg0);
const Object& result =
Object::Handle(zone, DartEntry::InvokeFunction(print_metric, args));
if (!result.IsNull()) {
ASSERT(result.IsString());
TextBuffer* buffer = js->buffer();
buffer->AddString(String::Cast(result).ToCString());
return true;
}
PrintInvalidParamError(js, "metricId");
return true;
}
static const MethodParameter* get_isolate_metric_list_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetIsolateMetricList(Thread* thread, JSONStream* js) {
bool native_metrics = false;
if (js->HasParam("type")) {
if (js->ParamIs("type", "Native")) {
native_metrics = true;
} else if (js->ParamIs("type", "Dart")) {
native_metrics = false;
} else {
PrintInvalidParamError(js, "type");
return true;
}
} else {
PrintMissingParamError(js, "type");
return true;
}
if (native_metrics) {
return HandleNativeMetricsList(thread, js);
}
return HandleDartMetricsList(thread, js);
}
static const MethodParameter* get_isolate_metric_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetIsolateMetric(Thread* thread, JSONStream* js) {
const char* metric_id = js->LookupParam("metricId");
if (metric_id == NULL) {
PrintMissingParamError(js, "metricId");
return true;
}
// Verify id begins with "metrics/".
static const char* const kMetricIdPrefix = "metrics/";
static intptr_t kMetricIdPrefixLen = strlen(kMetricIdPrefix);
if (strncmp(metric_id, kMetricIdPrefix, kMetricIdPrefixLen) != 0) {
PrintInvalidParamError(js, "metricId");
return true;
}
// Check if id begins with "metrics/native/".
static const char* const kNativeMetricIdPrefix = "metrics/native/";
static intptr_t kNativeMetricIdPrefixLen = strlen(kNativeMetricIdPrefix);
const bool native_metric =
strncmp(metric_id, kNativeMetricIdPrefix, kNativeMetricIdPrefixLen) == 0;
if (native_metric) {
const char* id = metric_id + kNativeMetricIdPrefixLen;
return HandleNativeMetric(thread, js, id);
}
const char* id = metric_id + kMetricIdPrefixLen;
return HandleDartMetric(thread, js, id);
}
static const MethodParameter* get_vm_metric_list_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetVMMetricList(Thread* thread, JSONStream* js) {
return false;
}
static const MethodParameter* get_vm_metric_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetVMMetric(Thread* thread, JSONStream* js) {
const char* metric_id = js->LookupParam("metricId");
if (metric_id == NULL) {
PrintMissingParamError(js, "metricId");
}
return false;
}
static const char* const timeline_streams_enum_names[] = {
"all",
#define DEFINE_NAME(name, unused) #name,
TIMELINE_STREAM_LIST(DEFINE_NAME)
#undef DEFINE_NAME
NULL};
static const MethodParameter* set_vm_timeline_flags_params[] = {
NO_ISOLATE_PARAMETER,
new EnumListParameter("recordedStreams",
false,
timeline_streams_enum_names),
NULL,
};
#if defined(SUPPORT_TIMELINE)
static bool HasStream(const char** recorded_streams, const char* stream) {
while (*recorded_streams != NULL) {
if ((strstr(*recorded_streams, "all") != NULL) ||
(strstr(*recorded_streams, stream) != NULL)) {
return true;
}
recorded_streams++;
}
return false;
}
#endif
static bool SetVMTimelineFlags(Thread* thread, JSONStream* js) {
#if !defined(SUPPORT_TIMELINE)
PrintSuccess(js);
return true;
#else
Isolate* isolate = thread->isolate();
ASSERT(isolate != NULL);
StackZone zone(thread);
const EnumListParameter* recorded_streams_param =
static_cast<const EnumListParameter*>(set_vm_timeline_flags_params[1]);
const char* recorded_streams_str = js->LookupParam("recordedStreams");
const char** recorded_streams =
recorded_streams_param->Parse(thread->zone(), recorded_streams_str);
#define SET_ENABLE_STREAM(name, unused) \
Timeline::SetStream##name##Enabled(HasStream(recorded_streams, #name));
TIMELINE_STREAM_LIST(SET_ENABLE_STREAM);
#undef SET_ENABLE_STREAM
// Notify clients that the set of subscribed streams has been updated.
if (Service::timeline_stream.enabled()) {
ServiceEvent event(NULL, ServiceEvent::kTimelineStreamSubscriptionsUpdate);
Service::HandleEvent(&event);
}
PrintSuccess(js);
return true;
#endif
}
static const MethodParameter* get_vm_timeline_flags_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetVMTimelineFlags(Thread* thread, JSONStream* js) {
#if !defined(SUPPORT_TIMELINE)
JSONObject obj(js);
obj.AddProperty("type", "TimelineFlags");
return true;
#else
Isolate* isolate = thread->isolate();
ASSERT(isolate != NULL);
StackZone zone(thread);
Timeline::PrintFlagsToJSON(js);
return true;
#endif
}
static const MethodParameter* get_vm_timeline_micros_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetVMTimelineMicros(Thread* thread, JSONStream* js) {
JSONObject obj(js);
obj.AddProperty("type", "Timestamp");
obj.AddPropertyTimeMicros("timestamp", OS::GetCurrentMonotonicMicros());
return true;
}
static const MethodParameter* clear_vm_timeline_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool ClearVMTimeline(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
ASSERT(isolate != NULL);
StackZone zone(thread);
Timeline::Clear();
PrintSuccess(js);
return true;
}
static const MethodParameter* get_vm_timeline_params[] = {
NO_ISOLATE_PARAMETER,
new Int64Parameter("timeOriginMicros", false),
new Int64Parameter("timeExtentMicros", false),
NULL,
};
static bool GetVMTimeline(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
ASSERT(isolate != NULL);
StackZone zone(thread);
Timeline::ReclaimCachedBlocksFromThreads();
TimelineEventRecorder* timeline_recorder = Timeline::recorder();
// TODO(johnmccutchan): Return an error.
ASSERT(timeline_recorder != NULL);
const char* name = timeline_recorder->name();
if ((strcmp(name, FUCHSIA_RECORDER_NAME) == 0) ||
(strcmp(name, SYSTRACE_RECORDER_NAME) == 0)) {
js->PrintError(kInvalidTimelineRequest,
"A recorder of type \"%s\" is "
"currently in use. As a result, timeline events are handled "
"by the OS rather than the VM. See the VM service "
"documentation for more details on where timeline events "
"can be found for this recorder type.",
timeline_recorder->name());
return true;
}
int64_t time_origin_micros =
Int64Parameter::Parse(js->LookupParam("timeOriginMicros"));
int64_t time_extent_micros =
Int64Parameter::Parse(js->LookupParam("timeExtentMicros"));
TimelineEventFilter filter(time_origin_micros, time_extent_micros);
timeline_recorder->PrintJSON(js, &filter);
return true;
}
static const char* const step_enum_names[] = {
"None", "Into", "Over", "Out", "Rewind", "OverAsyncSuspension", NULL,
};
static const Debugger::ResumeAction step_enum_values[] = {
Debugger::kContinue, Debugger::kStepInto,
Debugger::kStepOver, Debugger::kStepOut,
Debugger::kStepRewind, Debugger::kStepOverAsyncSuspension,
Debugger::kContinue, // Default value
};
static const MethodParameter* resume_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new EnumParameter("step", false, step_enum_names),
new UIntParameter("frameIndex", false),
NULL,
};
static bool Resume(Thread* thread, JSONStream* js) {
const char* step_param = js->LookupParam("step");
Debugger::ResumeAction step = Debugger::kContinue;
if (step_param != NULL) {
step = EnumMapper(step_param, step_enum_names, step_enum_values);
}
intptr_t frame_index = 1;
const char* frame_index_param = js->LookupParam("frameIndex");
if (frame_index_param != NULL) {
if (step != Debugger::kStepRewind) {
// Only rewind supports the frameIndex parameter.
js->PrintError(
kInvalidParams,
"%s: the 'frameIndex' parameter can only be used when rewinding",
js->method());
return true;
}
frame_index = UIntParameter::Parse(js->LookupParam("frameIndex"));
}
Isolate* isolate = thread->isolate();
if (isolate->message_handler()->is_paused_on_start()) {
// If the user is issuing a 'Over' or an 'Out' step, that is the
// same as a regular resume request.
if (step == Debugger::kStepInto) {
isolate->debugger()->EnterSingleStepMode();
}
isolate->message_handler()->set_should_pause_on_start(false);
isolate->SetResumeRequest();
if (Service::debug_stream.enabled()) {
ServiceEvent event(isolate, ServiceEvent::kResume);
Service::HandleEvent(&event);
}
PrintSuccess(js);
return true;
}
if (isolate->message_handler()->should_pause_on_start()) {
isolate->message_handler()->set_should_pause_on_start(false);
isolate->SetResumeRequest();
if (Service::debug_stream.enabled()) {
ServiceEvent event(isolate, ServiceEvent::kResume);
Service::HandleEvent(&event);
}
PrintSuccess(js);
return true;
}
if (isolate->message_handler()->is_paused_on_exit()) {
isolate->message_handler()->set_should_pause_on_exit(false);
isolate->SetResumeRequest();
// We don't send a resume event because we will be exiting.
PrintSuccess(js);
return true;
}
if (isolate->debugger()->PauseEvent() == NULL) {
js->PrintError(kIsolateMustBePaused, NULL);
return true;
}
const char* error = NULL;
if (!isolate->debugger()->SetResumeAction(step, frame_index, &error)) {
js->PrintError(kCannotResume, "%s", error);
return true;
}
isolate->SetResumeRequest();
PrintSuccess(js);
return true;
}
static const MethodParameter* kill_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool Kill(Thread* thread, JSONStream* js) {
const String& msg =
String::Handle(String::New("isolate terminated by Kill service request"));
const UnwindError& error = UnwindError::Handle(UnwindError::New(msg));
error.set_is_user_initiated(true);
Thread::Current()->set_sticky_error(error);
PrintSuccess(js);
return true;
}
static const MethodParameter* pause_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool Pause(Thread* thread, JSONStream* js) {
// TODO(turnidge): This interrupt message could have been sent from
// the service isolate directly, but would require some special case
// code. That would prevent this isolate getting double-interrupted
// with OOB messages.
Isolate* isolate = thread->isolate();
isolate->SendInternalLibMessage(Isolate::kInterruptMsg,
isolate->pause_capability());
PrintSuccess(js);
return true;
}
static const MethodParameter* enable_profiler_params[] = {
NULL,
};
static bool EnableProfiler(Thread* thread, JSONStream* js) {
if (!FLAG_profiler) {
FLAG_profiler = true;
Profiler::Init();
}
PrintSuccess(js);
return true;
}
static const MethodParameter* get_tag_profile_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetTagProfile(Thread* thread, JSONStream* js) {
JSONObject miniProfile(js);
miniProfile.AddProperty("type", "TagProfile");
thread->isolate()->vm_tag_counters()->PrintToJSONObject(&miniProfile);
return true;
}
static const MethodParameter* get_cpu_samples_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new Int64Parameter("timeOriginMicros", false),
new Int64Parameter("timeExtentMicros", false),
NULL,
};
static bool GetCpuSamples(Thread* thread, JSONStream* js) {
int64_t time_origin_micros =
Int64Parameter::Parse(js->LookupParam("timeOriginMicros"));
int64_t time_extent_micros =
Int64Parameter::Parse(js->LookupParam("timeExtentMicros"));
const bool include_code_samples =
BoolParameter::Parse(js->LookupParam("_code"), false);
if (CheckProfilerDisabled(thread, js)) {
return true;
}
ProfilerService::PrintJSON(js, time_origin_micros, time_extent_micros,
include_code_samples);
return true;
}
static const MethodParameter* get_allocation_samples_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("classId", false),
new Int64Parameter("timeOriginMicros", false),
new Int64Parameter("timeExtentMicros", false),
NULL,
};
static bool GetAllocationSamples(Thread* thread, JSONStream* js) {
int64_t time_origin_micros =
Int64Parameter::Parse(js->LookupParam("timeOriginMicros"));
int64_t time_extent_micros =
Int64Parameter::Parse(js->LookupParam("timeExtentMicros"));
const char* class_id = js->LookupParam("classId");
intptr_t cid = -1;
GetPrefixedIntegerId(class_id, "classes/", &cid);
Isolate* isolate = thread->isolate();
if (IsValidClassId(isolate, cid)) {
if (CheckProfilerDisabled(thread, js)) {
return true;
}
const Class& cls = Class::Handle(GetClassForId(isolate, cid));
ProfilerService::PrintAllocationJSON(js, cls, time_origin_micros,
time_extent_micros);
} else {
PrintInvalidParamError(js, "classId");
}
return true;
}
static const MethodParameter* get_native_allocation_samples_params[] = {
NO_ISOLATE_PARAMETER,
new Int64Parameter("timeOriginMicros", false),
new Int64Parameter("timeExtentMicros", false),
NULL,
};
static bool GetNativeAllocationSamples(Thread* thread, JSONStream* js) {
int64_t time_origin_micros =
Int64Parameter::Parse(js->LookupParam("timeOriginMicros"));
int64_t time_extent_micros =
Int64Parameter::Parse(js->LookupParam("timeExtentMicros"));
bool include_code_samples =
BoolParameter::Parse(js->LookupParam("_code"), false);
#if defined(DEBUG)
Isolate::Current()->heap()->CollectAllGarbage();
#endif
if (CheckNativeAllocationProfilerDisabled(thread, js)) {
return true;
}
ProfilerService::PrintNativeAllocationJSON(
js, time_origin_micros, time_extent_micros, include_code_samples);
return true;
}
static const MethodParameter* clear_cpu_samples_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool ClearCpuSamples(Thread* thread, JSONStream* js) {
ProfilerService::ClearSamples();
PrintSuccess(js);
return true;
}
static bool GetAllocationProfileImpl(Thread* thread,
JSONStream* js,
bool internal) {
bool should_reset_accumulator = false;
bool should_collect = false;
if (js->HasParam("reset")) {
if (js->ParamIs("reset", "true")) {
should_reset_accumulator = true;
} else {
PrintInvalidParamError(js, "reset");
return true;
}
}
if (js->HasParam("gc")) {
if (js->ParamIs("gc", "true")) {
should_collect = true;
} else {
PrintInvalidParamError(js, "gc");
return true;
}
}
auto isolate = thread->isolate();
auto isolate_group = thread->isolate_group();
if (should_reset_accumulator) {
isolate_group->UpdateLastAllocationProfileAccumulatorResetTimestamp();
}
if (should_collect) {
isolate_group->UpdateLastAllocationProfileGCTimestamp();
isolate_group->heap()->CollectAllGarbage();
}
isolate->class_table()->AllocationProfilePrintJSON(js, internal);
return true;
}
static const MethodParameter* get_allocation_profile_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetAllocationProfilePublic(Thread* thread, JSONStream* js) {
return GetAllocationProfileImpl(thread, js, false);
}
static bool GetAllocationProfile(Thread* thread, JSONStream* js) {
return GetAllocationProfileImpl(thread, js, true);
}
static const MethodParameter* collect_all_garbage_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool CollectAllGarbage(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
isolate->heap()->CollectAllGarbage(Heap::kDebugging);
PrintSuccess(js);
return true;
}
static const MethodParameter* get_heap_map_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetHeapMap(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
if (js->HasParam("gc")) {
if (js->ParamIs("gc", "scavenge")) {
isolate->heap()->CollectGarbage(Heap::kScavenge, Heap::kDebugging);
} else if (js->ParamIs("gc", "mark-sweep")) {
isolate->heap()->CollectGarbage(Heap::kMarkSweep, Heap::kDebugging);
} else if (js->ParamIs("gc", "mark-compact")) {
isolate->heap()->CollectGarbage(Heap::kMarkCompact, Heap::kDebugging);
} else {
PrintInvalidParamError(js, "gc");
return true;
}
}
isolate->heap()->PrintHeapMapToJSONStream(isolate, js);
return true;
}
static const MethodParameter* request_heap_snapshot_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool RequestHeapSnapshot(Thread* thread, JSONStream* js) {
if (Service::heapsnapshot_stream.enabled()) {
HeapSnapshotWriter writer(thread);
writer.Write();
}
// TODO(koda): Provide some id that ties this request to async response(s).
PrintSuccess(js);
return true;
}
static intptr_t GetProcessMemoryUsageHelper(JSONStream* js) {
JSONObject response(js);
response.AddProperty("type", "ProcessMemoryUsage");
JSONObject rss(&response, "root");
rss.AddPropertyF("name", "Process %" Pd "", OS::ProcessId());
rss.AddProperty("description", "Resident set size");
rss.AddProperty64("size", Service::CurrentRSS());
JSONArray rss_children(&rss, "children");
JSONObject vm(&rss_children);
intptr_t vm_size = 0;
{
JSONArray vm_children(&vm, "children");
{
JSONObject profiler(&vm_children);
profiler.AddProperty("name", "Profiler");
profiler.AddProperty("description",
"Samples from the Dart VM's profiler");
intptr_t size = Profiler::Size();
vm_size += size;
profiler.AddProperty64("size", size);
JSONArray(&profiler, "children");
}
{
JSONObject timeline(&vm_children);
timeline.AddProperty("name", "Timeline");
timeline.AddProperty(
"description",
"Timeline events from dart:developer and Dart_TimelineEvent");
intptr_t size = Timeline::recorder()->Size();
vm_size += size;
timeline.AddProperty64("size", size);
JSONArray(&timeline, "children");
}
{
JSONObject zone(&vm_children);
zone.AddProperty("name", "Zone");
zone.AddProperty("description", "Arena allocation in the Dart VM");
intptr_t size = Zone::Size();
vm_size += size;
zone.AddProperty64("size", size);
JSONArray(&zone, "children");
}
{
JSONObject semi(&vm_children);
semi.AddProperty("name", "SemiSpace Cache");
semi.AddProperty("description", "Cached heap regions");
intptr_t size = SemiSpace::CachedSize();
vm_size += size;
semi.AddProperty64("size", size);
JSONArray(&semi, "children");
}
IsolateGroup::ForEach(
[&vm_children, &vm_size](IsolateGroup* isolate_group) {
// Note: new_space()->CapacityInWords() includes memory that hasn't
// been allocated from the OS yet.
int64_t capacity =
(isolate_group->heap()->new_space()->UsedInWords() +
isolate_group->heap()->old_space()->CapacityInWords()) *
kWordSize;
int64_t used = isolate_group->heap()->TotalUsedInWords() * kWordSize;
int64_t free = capacity - used;
JSONObject group(&vm_children);
group.AddPropertyF("name", "IsolateGroup %s",
isolate_group->source()->name);
group.AddProperty("description", "Dart heap capacity");
vm_size += capacity;
group.AddProperty64("size", capacity);
JSONArray group_children(&group, "children");
{
JSONObject jsused(&group_children);
jsused.AddProperty("name", "Used");
jsused.AddProperty("description", "");
jsused.AddProperty64("size", used);
JSONArray(&jsused, "children");
}
{
JSONObject jsfree(&group_children);
jsfree.AddProperty("name", "Free");
jsfree.AddProperty("description", "");
jsfree.AddProperty64("size", free);
JSONArray(&jsfree, "children");
}
});
} // vm_children
vm.AddProperty("name", "Dart VM");
vm.AddProperty("description", "");
vm.AddProperty64("size", vm_size);
return vm_size;
}
static const MethodParameter* get_process_memory_usage_params[] = {
NULL,
};
static bool GetProcessMemoryUsage(Thread* thread, JSONStream* js) {
GetProcessMemoryUsageHelper(js);
return true;
}
void Service::SendInspectEvent(Isolate* isolate, const Object& inspectee) {
if (!Service::debug_stream.enabled()) {
return;
}
ServiceEvent event(isolate, ServiceEvent::kInspect);
event.set_inspectee(&inspectee);
Service::HandleEvent(&event);
}
void Service::SendEmbedderEvent(Isolate* isolate,
const char* stream_id,
const char* event_kind,
const uint8_t* bytes,
intptr_t bytes_len) {
if (!Service::debug_stream.enabled()) {
return;
}
ServiceEvent event(isolate, ServiceEvent::kEmbedder);
event.set_embedder_kind(event_kind);
event.set_embedder_stream_id(stream_id);
event.set_bytes(bytes, bytes_len);
Service::HandleEvent(&event);
}
void Service::SendLogEvent(Isolate* isolate,
int64_t sequence_number,
int64_t timestamp,
intptr_t level,
const String& name,
const String& message,
const Instance& zone,
const Object& error,
const Instance& stack_trace) {
if (!Service::logging_stream.enabled()) {
return;
}
ServiceEvent::LogRecord log_record;
log_record.sequence_number = sequence_number;
log_record.timestamp = timestamp;
log_record.level = level;
log_record.name = &name;
log_record.message = &message;
log_record.zone = &zone;
log_record.error = &error;
log_record.stack_trace = &stack_trace;
ServiceEvent event(isolate, ServiceEvent::kLogging);
event.set_log_record(log_record);
Service::HandleEvent(&event);
}
void Service::SendExtensionEvent(Isolate* isolate,
const String& event_kind,
const String& event_data) {
if (!Service::extension_stream.enabled()) {
return;
}
ServiceEvent::ExtensionEvent extension_event;
extension_event.event_kind = &event_kind;
extension_event.event_data = &event_data;
ServiceEvent event(isolate, ServiceEvent::kExtension);
event.set_extension_event(extension_event);
Service::HandleEvent(&event);
}
static const MethodParameter* get_persistent_handles_params[] = {
ISOLATE_PARAMETER,
NULL,
};
template <typename T>
class PersistentHandleVisitor : public HandleVisitor {
public:
PersistentHandleVisitor(Thread* thread, JSONArray* handles)
: HandleVisitor(thread), handles_(handles) {
ASSERT(handles_ != NULL);
}
void Append(PersistentHandle* persistent_handle) {
JSONObject obj(handles_);
obj.AddProperty("type", "_PersistentHandle");
const Object& object = Object::Handle(persistent_handle->raw());
obj.AddProperty("object", object);
}
void Append(FinalizablePersistentHandle* weak_persistent_handle) {
if (!weak_persistent_handle->raw()->IsHeapObject()) {
return; // Free handle.
}
JSONObject obj(handles_);
obj.AddProperty("type", "_WeakPersistentHandle");
const Object& object = Object::Handle(weak_persistent_handle->raw());
obj.AddProperty("object", object);
obj.AddPropertyF(
"peer", "0x%" Px "",
reinterpret_cast<uintptr_t>(weak_persistent_handle->peer()));
obj.AddPropertyF(
"callbackAddress", "0x%" Px "",
reinterpret_cast<uintptr_t>(weak_persistent_handle->callback()));
// Attempt to include a native symbol name.
char* name = NativeSymbolResolver::LookupSymbolName(
reinterpret_cast<uword>(weak_persistent_handle->callback()), nullptr);
obj.AddProperty("callbackSymbolName", (name == nullptr) ? "" : name);
if (name != nullptr) {
NativeSymbolResolver::FreeSymbolName(name);
}
obj.AddPropertyF("externalSize", "%" Pd "",
weak_persistent_handle->external_size());
}
protected:
virtual void VisitHandle(uword addr) {
T* handle = reinterpret_cast<T*>(addr);
Append(handle);
}
JSONArray* handles_;
};
static bool GetPersistentHandles(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
ASSERT(isolate != NULL);
ApiState* api_state = isolate->group()->api_state();
ASSERT(api_state != NULL);
{
JSONObject obj(js);
obj.AddProperty("type", "_PersistentHandles");
// Persistent handles.
{
JSONArray persistent_handles(&obj, "persistentHandles");
api_state->RunWithLockedPersistentHandles(
[&](PersistentHandles& handles) {
PersistentHandleVisitor<FinalizablePersistentHandle> visitor(
thread, &persistent_handles);
handles.Visit(&visitor);
});
}
// Weak persistent handles.
{
JSONArray weak_persistent_handles(&obj, "weakPersistentHandles");
api_state->RunWithLockedWeakPersistentHandles(
[&](FinalizablePersistentHandles& handles) {
PersistentHandleVisitor<FinalizablePersistentHandle> visitor(
thread, &weak_persistent_handles);
handles.VisitHandles(&visitor);
});
}
}
return true;
}
static const MethodParameter* get_ports_private_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetPortsPrivate(Thread* thread, JSONStream* js) {
MessageHandler* message_handler = thread->isolate()->message_handler();
PortMap::PrintPortsForMessageHandler(message_handler, js);
return true;
}
static bool RespondWithMalformedJson(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
jsobj.AddProperty("a", "a");
JSONObject jsobj1(js);
jsobj1.AddProperty("a", "a");
JSONObject jsobj2(js);
jsobj2.AddProperty("a", "a");
JSONObject jsobj3(js);
jsobj3.AddProperty("a", "a");
return true;
}
static bool RespondWithMalformedObject(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
jsobj.AddProperty("bart", "simpson");
return true;
}
static const MethodParameter* get_object_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new UIntParameter("offset", false),
new UIntParameter("count", false),
NULL,
};
static bool GetObject(Thread* thread, JSONStream* js) {
const char* id = js->LookupParam("objectId");
if (id == NULL) {
PrintMissingParamError(js, "objectId");
return true;
}
if (js->HasParam("offset")) {
intptr_t value = UIntParameter::Parse(js->LookupParam("offset"));
if (value < 0) {
PrintInvalidParamError(js, "offset");
return true;
}
js->set_offset(value);
}
if (js->HasParam("count")) {
intptr_t value = UIntParameter::Parse(js->LookupParam("count"));
if (value < 0) {
PrintInvalidParamError(js, "count");
return true;
}
js->set_count(value);
}
// Handle heap objects.
ObjectIdRing::LookupResult lookup_result;
Object& obj = Object::Handle(LookupHeapObject(thread, id, &lookup_result));
if (obj.raw() != Object::sentinel().raw()) {
#if !defined(DART_PRECOMPILED_RUNTIME)
// If obj is a script from dart:* and doesn't have source loaded, try and
// load the source before sending the response.
if (obj.IsScript()) {
const Script& script = Script::Cast(obj);
script.LookupSourceAndLineStarts(thread->zone());
if (!script.HasSource() && script.IsPartOfDartColonLibrary() &&
Service::HasDartLibraryKernelForSources()) {
const uint8_t* kernel_buffer = Service::dart_library_kernel();
const intptr_t kernel_buffer_len =
Service::dart_library_kernel_length();
script.LoadSourceFromKernel(kernel_buffer, kernel_buffer_len);
}
}
#endif // !defined(DART_PRECOMPILED_RUNTIME)
// We found a heap object for this id. Return it.
obj.PrintJSON(js, false);
return true;
} else if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
return true;
} else if (lookup_result == ObjectIdRing::kExpired) {
PrintSentinel(js, kExpiredSentinel);
return true;
}
// Handle non-heap objects.
Breakpoint* bpt = LookupBreakpoint(thread->isolate(), id, &lookup_result);
if (bpt != NULL) {
bpt->PrintJSON(js);
return true;
} else if (lookup_result == ObjectIdRing::kCollected) {
PrintSentinel(js, kCollectedSentinel);
return true;
}
PrintInvalidParamError(js, "objectId");
return true;
}
static const MethodParameter* get_object_store_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetObjectStore(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
thread->isolate()->object_store()->PrintToJSONObject(&jsobj);
return true;
}
static const MethodParameter* get_isolate_object_store_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetIsolateObjectStore(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
thread->isolate()->isolate_object_store()->PrintToJSONObject(&jsobj);
return true;
}
static const MethodParameter* get_class_list_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetClassList(Thread* thread, JSONStream* js) {
ClassTable* table = thread->isolate()->class_table();
JSONObject jsobj(js);
table->PrintToJSONObject(&jsobj);
return true;
}
static const MethodParameter* get_type_arguments_list_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
NULL,
};
static bool GetTypeArgumentsList(Thread* thread, JSONStream* js) {
bool only_with_instantiations = false;
if (js->ParamIs("onlyWithInstantiations", "true")) {
only_with_instantiations = true;
}
Zone* zone = thread->zone();
ObjectStore* object_store = thread->isolate()->object_store();
CanonicalTypeArgumentsSet typeargs_table(
zone, object_store->canonical_type_arguments());
const intptr_t table_size = typeargs_table.NumEntries();
const intptr_t table_used = typeargs_table.NumOccupied();
const Array& typeargs_array =
Array::Handle(zone, HashTables::ToArray(typeargs_table, false));
ASSERT(typeargs_array.Length() == table_used);
TypeArguments& typeargs = TypeArguments::Handle(zone);
JSONObject jsobj(js);
jsobj.AddProperty("type", "TypeArgumentsList");
jsobj.AddProperty("canonicalTypeArgumentsTableSize", table_size);
jsobj.AddProperty("canonicalTypeArgumentsTableUsed", table_used);
JSONArray members(&jsobj, "typeArguments");
for (intptr_t i = 0; i < table_used; i++) {
typeargs ^= typeargs_array.At(i);
if (!typeargs.IsNull()) {
if (!only_with_instantiations || typeargs.HasInstantiations()) {
members.AddValue(typeargs);
}
}
}
typeargs_table.Release();
return true;
}
static const MethodParameter* get_version_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetVersion(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
jsobj.AddProperty("type", "Version");
jsobj.AddProperty("major",
static_cast<intptr_t>(SERVICE_PROTOCOL_MAJOR_VERSION));
jsobj.AddProperty("minor",
static_cast<intptr_t>(SERVICE_PROTOCOL_MINOR_VERSION));
jsobj.AddProperty("_privateMajor", static_cast<intptr_t>(0));
jsobj.AddProperty("_privateMinor", static_cast<intptr_t>(0));
return true;
}
class ServiceIsolateVisitor : public IsolateVisitor {
public:
explicit ServiceIsolateVisitor(JSONArray* jsarr) : jsarr_(jsarr) {}
virtual ~ServiceIsolateVisitor() {}
void VisitIsolate(Isolate* isolate) {
if (!IsSystemIsolate(isolate)) {
jsarr_->AddValue(isolate);
}
}
private:
JSONArray* jsarr_;
};
class SystemServiceIsolateVisitor : public IsolateVisitor {
public:
explicit SystemServiceIsolateVisitor(JSONArray* jsarr) : jsarr_(jsarr) {}
virtual ~SystemServiceIsolateVisitor() {}
void VisitIsolate(Isolate* isolate) {
if (IsSystemIsolate(isolate) &&
!Dart::VmIsolateNameEquals(isolate->name())) {
jsarr_->AddValue(isolate);
}
}
private:
JSONArray* jsarr_;
};
static const MethodParameter* get_vm_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
void Service::PrintJSONForEmbedderInformation(JSONObject* jsobj) {
if (embedder_information_callback_ != NULL) {
Dart_EmbedderInformation info = {
0, // version
NULL, // name
-1, // max_rss
-1 // current_rss
};
embedder_information_callback_(&info);
ASSERT(info.version == DART_EMBEDDER_INFORMATION_CURRENT_VERSION);
if (info.name != NULL) {
jsobj->AddProperty("_embedder", info.name);
}
if (info.max_rss >= 0) {
jsobj->AddProperty64("_maxRSS", info.max_rss);
}
if (info.current_rss >= 0) {
jsobj->AddProperty64("_currentRSS", info.current_rss);
}
}
}
void Service::PrintJSONForVM(JSONStream* js, bool ref) {
JSONObject jsobj(js);
jsobj.AddProperty("type", (ref ? "@VM" : "VM"));
jsobj.AddProperty("name", GetVMName());
if (ref) {
return;
}
jsobj.AddProperty("architectureBits", static_cast<intptr_t>(kBitsPerWord));
jsobj.AddProperty("hostCPU", HostCPUFeatures::hardware());
jsobj.AddProperty("operatingSystem", OS::Name());
jsobj.AddProperty("targetCPU", CPU::Id());
jsobj.AddProperty("version", Version::String());
jsobj.AddProperty("_profilerMode", FLAG_profile_vm ? "VM" : "Dart");
jsobj.AddProperty64("_nativeZoneMemoryUsage",
ApiNativeScope::current_memory_usage());
jsobj.AddProperty64("pid", OS::ProcessId());
jsobj.AddPropertyTimeMillis(
"startTime", OS::GetCurrentTimeMillis() - Dart::UptimeMillis());
MallocHooks::PrintToJSONObject(&jsobj);
PrintJSONForEmbedderInformation(&jsobj);
// Construct the isolate and isolate_groups list.
{
JSONArray jsarr(&jsobj, "isolates");
ServiceIsolateVisitor visitor(&jsarr);
Isolate::VisitIsolates(&visitor);
}
{
JSONArray jsarr(&jsobj, "systemIsolates");
SystemServiceIsolateVisitor visitor(&jsarr);
Isolate::VisitIsolates(&visitor);
}
{
JSONArray jsarr_isolate_groups(&jsobj, "isolateGroups");
IsolateGroup::ForEach([&jsarr_isolate_groups](IsolateGroup* isolate_group) {
if (!isolate_group->is_system_isolate_group()) {
jsarr_isolate_groups.AddValue(isolate_group);
}
});
}
{
JSONArray jsarr_isolate_groups(&jsobj, "systemIsolateGroups");
IsolateGroup::ForEach([&jsarr_isolate_groups](IsolateGroup* isolate_group) {
// Don't surface the vm-isolate since it's not a "real" isolate.
if (Dart::VmIsolateNameEquals(isolate_group->source()->name)) {
return;
}
if (isolate_group->is_system_isolate_group()) {
jsarr_isolate_groups.AddValue(isolate_group);
}
});
}
{
JSONStream discard_js;
intptr_t vm_memory = GetProcessMemoryUsageHelper(&discard_js);
jsobj.AddProperty("_currentMemory", vm_memory);
}
}
static bool GetVM(Thread* thread, JSONStream* js) {
Service::PrintJSONForVM(js, false);
return true;
}
static const char* exception_pause_mode_names[] = {
"All",
"None",
"Unhandled",
NULL,
};
static Dart_ExceptionPauseInfo exception_pause_mode_values[] = {
kPauseOnAllExceptions,
kNoPauseOnExceptions,
kPauseOnUnhandledExceptions,
kInvalidExceptionPauseInfo,
};
static const MethodParameter* set_exception_pause_mode_params[] = {
ISOLATE_PARAMETER,
new EnumParameter("mode", true, exception_pause_mode_names),
NULL,
};
static bool SetExceptionPauseMode(Thread* thread, JSONStream* js) {
const char* mode = js->LookupParam("mode");
if (mode == NULL) {
PrintMissingParamError(js, "mode");
return true;
}
Dart_ExceptionPauseInfo info =
EnumMapper(mode, exception_pause_mode_names, exception_pause_mode_values);
if (info == kInvalidExceptionPauseInfo) {
PrintInvalidParamError(js, "mode");
return true;
}
Isolate* isolate = thread->isolate();
isolate->debugger()->SetExceptionPauseInfo(info);
if (Service::debug_stream.enabled()) {
ServiceEvent event(isolate, ServiceEvent::kDebuggerSettingsUpdate);
Service::HandleEvent(&event);
}
PrintSuccess(js);
return true;
}
static const MethodParameter* get_flag_list_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetFlagList(Thread* thread, JSONStream* js) {
Flags::PrintJSON(js);
return true;
}
static const MethodParameter* set_flags_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool SetFlag(Thread* thread, JSONStream* js) {
const char* flag_name = js->LookupParam("name");
if (flag_name == NULL) {
PrintMissingParamError(js, "name");
return true;
}
const char* flag_value = js->LookupParam("value");
if (flag_value == NULL) {
PrintMissingParamError(js, "value");
return true;
}
if (Flags::Lookup(flag_name) == NULL) {
JSONObject jsobj(js);
jsobj.AddProperty("type", "Error");
jsobj.AddProperty("message", "Cannot set flag: flag not found");
return true;
}
// Changing most flags at runtime is dangerous because e.g., it may leave the
// behavior generated code and the runtime out of sync.
const uintptr_t kProfilePeriodIndex = 3;
const uintptr_t kProfilerIndex = 4;
const char* kAllowedFlags[] = {
"pause_isolates_on_start",
"pause_isolates_on_exit",
"pause_isolates_on_unhandled_exceptions",
"profile_period",
"profiler",
};
bool allowed = false;
bool profile_period = false;
bool profiler = false;
for (size_t i = 0; i < ARRAY_SIZE(kAllowedFlags); i++) {
if (strcmp(flag_name, kAllowedFlags[i]) == 0) {
allowed = true;
profile_period = (i == kProfilePeriodIndex);
profiler = (i == kProfilerIndex);
break;
}
}
if (!allowed) {
JSONObject jsobj(js);
jsobj.AddProperty("type", "Error");
jsobj.AddProperty("message", "Cannot set flag: cannot change at runtime");
return true;
}
const char* error = NULL;
if (Flags::SetFlag(flag_name, flag_value, &error)) {
PrintSuccess(js);
if (profile_period) {
// FLAG_profile_period has already been set to the new value. Now we need
// to notify the ThreadInterrupter to pick up the change.
Profiler::UpdateSamplePeriod();
} else if (profiler) {
// FLAG_profiler has already been set to the new value.
Profiler::UpdateRunningState();
}
if (Service::vm_stream.enabled()) {
ServiceEvent event(NULL, ServiceEvent::kVMFlagUpdate);
event.set_flag_name(flag_name);
event.set_flag_new_value(flag_value);
Service::HandleEvent(&event);
}
return true;
} else {
JSONObject jsobj(js);
jsobj.AddProperty("type", "Error");
jsobj.AddProperty("message", error);
return true;
}
}
static const MethodParameter* set_library_debuggable_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("libraryId", true),
new BoolParameter("isDebuggable", true),
NULL,
};
static bool SetLibraryDebuggable(Thread* thread, JSONStream* js) {
const char* lib_id = js->LookupParam("libraryId");
ObjectIdRing::LookupResult lookup_result;
Object& obj =
Object::Handle(LookupHeapObject(thread, lib_id, &lookup_result));
const bool is_debuggable =
BoolParameter::Parse(js->LookupParam("isDebuggable"), false);
if (obj.IsLibrary()) {
const Library& lib = Library::Cast(obj);
lib.set_debuggable(is_debuggable);
PrintSuccess(js);
return true;
}
PrintInvalidParamError(js, "libraryId");
return true;
}
static const MethodParameter* set_name_params[] = {
ISOLATE_PARAMETER,
new MethodParameter("name", true),
NULL,
};
static bool SetName(Thread* thread, JSONStream* js) {
Isolate* isolate = thread->isolate();
isolate->set_name(js->LookupParam("name"));
if (Service::isolate_stream.enabled()) {
ServiceEvent event(isolate, ServiceEvent::kIsolateUpdate);
Service::HandleEvent(&event);
}
PrintSuccess(js);
return true;
}
static const MethodParameter* set_vm_name_params[] = {
NO_ISOLATE_PARAMETER,
new MethodParameter("name", true),
NULL,
};
static bool SetVMName(Thread* thread, JSONStream* js) {
const char* name_param = js->LookupParam("name");
free(vm_name);
vm_name = Utils::StrDup(name_param);
if (Service::vm_stream.enabled()) {
ServiceEvent event(NULL, ServiceEvent::kVMUpdate);
Service::HandleEvent(&event);
}
PrintSuccess(js);
return true;
}
static const MethodParameter* set_trace_class_allocation_params[] = {
RUNNABLE_ISOLATE_PARAMETER,
new IdParameter("classId", true),
new BoolParameter("enable", true),
NULL,
};
static bool SetTraceClassAllocation(Thread* thread, JSONStream* js) {
if (CheckCompilerDisabled(thread, js)) {
return true;
}
const char* class_id = js->LookupParam("classId");
const bool enable = BoolParameter::Parse(js->LookupParam("enable"));
intptr_t cid = -1;
GetPrefixedIntegerId(class_id, "classes/", &cid);
Isolate* isolate = thread->isolate();
if (!IsValidClassId(isolate, cid)) {
PrintInvalidParamError(js, "classId");
return true;
}
const Class& cls = Class::Handle(GetClassForId(isolate, cid));
ASSERT(!cls.IsNull());
cls.SetTraceAllocation(enable);
PrintSuccess(js);
return true;
}
static const MethodParameter* get_default_classes_aliases_params[] = {
NO_ISOLATE_PARAMETER,
NULL,
};
static bool GetDefaultClassesAliases(Thread* thread, JSONStream* js) {
JSONObject jsobj(js);
jsobj.AddProperty("type", "ClassesAliasesMap");
JSONObject map(&jsobj, "map");
#define DEFINE_ADD_VALUE_F(id) \
internals.AddValueF("classes/%" Pd, static_cast<intptr_t>(id));
#define DEFINE_ADD_VALUE_F_CID(clazz) DEFINE_ADD_VALUE_F(k##clazz##Cid)
{
JSONArray internals(&map, "<VM Internals>");
for (intptr_t id = kClassCid; id < kInstanceCid; ++id) {
DEFINE_ADD_VALUE_F(id);
}
DEFINE_ADD_VALUE_F_CID(LibraryPrefix);
}
{
JSONArray internals(&map, "Type");
for (intptr_t id = kAbstractTypeCid; id <= kTypeParameterCid; ++id) {
DEFINE_ADD_VALUE_F(id);
}
}
{
JSONArray internals(&map, "Object");
DEFINE_ADD_VALUE_F_CID(Instance);
}
{
JSONArray internals(&map, "Closure");
DEFINE_ADD_VALUE_F_CID(Closure);
DEFINE_ADD_VALUE_F_CID(Context);
}
{
JSONArray internals(&map, "Int");
for (intptr_t id = kIntegerCid; id <= kMintCid; ++id) {
DEFINE_ADD_VALUE_F(id);
}
}
{
JSONArray internals(&map, "Double");
DEFINE_ADD_VALUE_F_CID(Double);
}
{
JSONArray internals(&map, "String");
CLASS_LIST_STRINGS(DEFINE_ADD_VALUE_F_CID)
}
{
JSONArray internals(&map, "List");
CLASS_LIST_ARRAYS(DEFINE_ADD_VALUE_F_CID)
DEFINE_ADD_VALUE_F_CID(GrowableObjectArray)
DEFINE_ADD_VALUE_F_CID(ByteBuffer)
}
{
JSONArray internals(&map, "Map");
DEFINE_ADD_VALUE_F_CID(LinkedHashMap)
}
#define DEFINE_ADD_MAP_KEY(clazz) \
{ \
JSONArray internals(&map, #clazz); \
DEFINE_ADD_VALUE_F_CID(TypedData##clazz) \
DEFINE_ADD_VALUE_F_CID(TypedData##clazz) \
DEFINE_ADD_VALUE_F_CID(ExternalTypedData##clazz) \
}
CLASS_LIST_TYPED_DATA(DEFINE_ADD_MAP_KEY)
#undef DEFINE_ADD_MAP_KEY
#define DEFINE_ADD_MAP_KEY(clazz) \
{ \
JSONArray internals(&map, #clazz); \
DEFINE_ADD_VALUE_F_CID(Ffi##clazz) \
}
CLASS_LIST_FFI(DEFINE_ADD_MAP_KEY)
#undef DEFINE_ADD_MAP_KEY
#undef DEFINE_ADD_VALUE_F_CID
#undef DEFINE_ADD_VALUE_F
return true;
}
// clang-format off
static const ServiceMethodDescriptor service_methods_[] = {
{ "_echo", Echo,
NULL },
{ "_respondWithMalformedJson", RespondWithMalformedJson,
NULL },
{ "_respondWithMalformedObject", RespondWithMalformedObject,
NULL },
{ "_triggerEchoEvent", TriggerEchoEvent,
NULL },
{ "addBreakpoint", AddBreakpoint,
add_breakpoint_params },
{ "addBreakpointWithScriptUri", AddBreakpointWithScriptUri,
add_breakpoint_with_script_uri_params },
{ "addBreakpointAtEntry", AddBreakpointAtEntry,
add_breakpoint_at_entry_params },
{ "_addBreakpointAtActivation", AddBreakpointAtActivation,
add_breakpoint_at_activation_params },
{ "_buildExpressionEvaluationScope", BuildExpressionEvaluationScope,
build_expression_evaluation_scope_params },
{ "clearCpuSamples", ClearCpuSamples,
clear_cpu_samples_params },
{ "clearVMTimeline", ClearVMTimeline,
clear_vm_timeline_params, },
{ "_compileExpression", CompileExpression, compile_expression_params },
{ "_enableProfiler", EnableProfiler,
enable_profiler_params, },
{ "evaluate", Evaluate,
evaluate_params },
{ "evaluateInFrame", EvaluateInFrame,
evaluate_in_frame_params },
{ "_getAllocationProfile", GetAllocationProfile,
get_allocation_profile_params },
{ "getAllocationProfile", GetAllocationProfilePublic,
get_allocation_profile_params },
{ "_getAllocationSamples", GetAllocationSamples,
get_allocation_samples_params },
{ "_getNativeAllocationSamples", GetNativeAllocationSamples,
get_native_allocation_samples_params },
{ "getClassList", GetClassList,
get_class_list_params },
{ "getCpuSamples", GetCpuSamples,
get_cpu_samples_params },
{ "getFlagList", GetFlagList,
get_flag_list_params },
{ "_getHeapMap", GetHeapMap,
get_heap_map_params },
{ "getInboundReferences", GetInboundReferences,
get_inbound_references_params },
{ "getInstances", GetInstances,
get_instances_params },
{ "getPorts", GetPorts,
get_ports_params },
{ "getIsolate", GetIsolate,
get_isolate_params },
{ "_getIsolateObjectStore", GetIsolateObjectStore,
get_isolate_object_store_params },
{ "getIsolateGroup", GetIsolateGroup,
get_isolate_group_params },
{ "getMemoryUsage", GetMemoryUsage,
get_memory_usage_params },
{ "getIsolateGroupMemoryUsage", GetIsolateGroupMemoryUsage,
get_isolate_group_memory_usage_params },
{ "_getIsolateMetric", GetIsolateMetric,
get_isolate_metric_params },
{ "_getIsolateMetricList", GetIsolateMetricList,
get_isolate_metric_list_params },
{ "getObject", GetObject,
get_object_params },
{ "_getObjectStore", GetObjectStore,
get_object_store_params },
{ "_getPersistentHandles", GetPersistentHandles,
get_persistent_handles_params, },
{ "_getPorts", GetPortsPrivate,
get_ports_private_params },
{ "getProcessMemoryUsage", GetProcessMemoryUsage,
get_process_memory_usage_params },
{ "_getReachableSize", GetReachableSize,
get_reachable_size_params },
{ "_getRetainedSize", GetRetainedSize,
get_retained_size_params },
{ "getRetainingPath", GetRetainingPath,
get_retaining_path_params },
{ "getScripts", GetScripts,
get_scripts_params },
{ "getSourceReport", GetSourceReport,
get_source_report_params },
{ "getStack", GetStack,
get_stack_params },
{ "_getTagProfile", GetTagProfile,
get_tag_profile_params },
{ "_getTypeArgumentsList", GetTypeArgumentsList,
get_type_arguments_list_params },
{ "getVersion", GetVersion,
get_version_params },
{ "getVM", GetVM,
get_vm_params },
{ "_getVMMetric", GetVMMetric,
get_vm_metric_params },
{ "_getVMMetricList", GetVMMetricList,
get_vm_metric_list_params },
{ "getVMTimeline", GetVMTimeline,
get_vm_timeline_params },
{ "getVMTimelineFlags", GetVMTimelineFlags,
get_vm_timeline_flags_params },
{ "getVMTimelineMicros", GetVMTimelineMicros,
get_vm_timeline_micros_params },
{ "invoke", Invoke, invoke_params },
{ "kill", Kill, kill_params },
{ "pause", Pause,
pause_params },
{ "removeBreakpoint", RemoveBreakpoint,
remove_breakpoint_params },
{ "reloadSources", ReloadSources,
reload_sources_params },
{ "_reloadSources", ReloadSources,
reload_sources_params },
{ "resume", Resume,
resume_params },
{ "requestHeapSnapshot", RequestHeapSnapshot,
request_heap_snapshot_params },
{ "_evaluateCompiledExpression", EvaluateCompiledExpression,
evaluate_compiled_expression_params },
{ "setExceptionPauseMode", SetExceptionPauseMode,
set_exception_pause_mode_params },
{ "setFlag", SetFlag,
set_flags_params },
{ "setLibraryDebuggable", SetLibraryDebuggable,
set_library_debuggable_params },
{ "setName", SetName,
set_name_params },
{ "_setTraceClassAllocation", SetTraceClassAllocation,
set_trace_class_allocation_params },
{ "setVMName", SetVMName,
set_vm_name_params },
{ "setVMTimelineFlags", SetVMTimelineFlags,
set_vm_timeline_flags_params },
{ "_collectAllGarbage", CollectAllGarbage,
collect_all_garbage_params },
{ "_getDefaultClassesAliases", GetDefaultClassesAliases,
get_default_classes_aliases_params },
};
// clang-format on
const ServiceMethodDescriptor* FindMethod(const char* method_name) {
intptr_t num_methods = sizeof(service_methods_) / sizeof(service_methods_[0]);
for (intptr_t i = 0; i < num_methods; i++) {
const ServiceMethodDescriptor& method = service_methods_[i];
if (strcmp(method_name, method.name) == 0) {
return &method;
}
}
return NULL;
}
#endif // !PRODUCT
} // namespace dart