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// Copyright (c) 2015, 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_event.h"
#include "vm/debugger.h"
#include "vm/message_handler.h"
#include "vm/service_isolate.h"
#include "vm/timeline.h"
namespace dart {
#ifndef PRODUCT
ServiceEvent::ServiceEvent(EventKind event_kind)
: ServiceEvent(nullptr, nullptr, event_kind) {}
ServiceEvent::ServiceEvent(IsolateGroup* isolate_group, EventKind event_kind)
: ServiceEvent(isolate_group, nullptr, event_kind) {}
ServiceEvent::ServiceEvent(Isolate* isolate, EventKind event_kind)
: ServiceEvent(isolate != nullptr ? isolate->group() : nullptr,
isolate,
event_kind) {}
ServiceEvent::ServiceEvent(IsolateGroup* isolate_group,
Isolate* isolate,
EventKind event_kind)
: isolate_(isolate),
isolate_group_(isolate_group),
kind_(event_kind),
flag_name_(nullptr),
flag_new_value_(nullptr),
previous_tag_(nullptr),
updated_tag_(nullptr),
embedder_kind_(nullptr),
embedder_stream_id_(nullptr),
breakpoint_(nullptr),
top_frame_(nullptr),
timeline_event_block_(nullptr),
extension_rpc_(nullptr),
exception_(nullptr),
reload_error_(nullptr),
spawn_token_(nullptr),
spawn_error_(nullptr),
at_async_jump_(false),
inspectee_(nullptr),
gc_stats_(nullptr),
bytes_(nullptr),
bytes_length_(0),
timestamp_(OS::GetCurrentTimeMillis()) {
// We should never generate events for the vm isolate as it is never reported
// over the service.
ASSERT(isolate_ != Dart::vm_isolate());
// VM internal isolates should never post service events. However, the Isolate
// service object uses a service event to represent the current running state
// of the isolate, so we need to allow for system isolates to create resume
// and none events for this purpose. The resume event represents a running
// isolate and the none event is returned for an isolate that has not yet
// been marked as runnable (see "pauseEvent" in Isolate::PrintJSON).
ASSERT(isolate == NULL || !Isolate::IsVMInternalIsolate(isolate) ||
(Isolate::IsVMInternalIsolate(isolate) &&
(event_kind == ServiceEvent::kResume ||
event_kind == ServiceEvent::kNone ||
// VM service can print Observatory information to Stdout or Stderr
// which are embedder streams.
event_kind == ServiceEvent::kEmbedder ||
event_kind == ServiceEvent::kCpuSamples)));
if ((event_kind == ServiceEvent::kPauseStart) ||
(event_kind == ServiceEvent::kPauseExit)) {
timestamp_ = isolate->message_handler()->paused_timestamp();
} else if (event_kind == ServiceEvent::kResume) {
timestamp_ = isolate->last_resume_timestamp();
}
ASSERT(timestamp_ > -1);
}
void ServiceEvent::UpdateTimestamp() {
timestamp_ = OS::GetCurrentTimeMillis();
}
const char* ServiceEvent::KindAsCString() const {
switch (kind()) {
case kVMUpdate:
return "VMUpdate";
case kVMFlagUpdate:
return "VMFlagUpdate";
case kIsolateStart:
return "IsolateStart";
case kIsolateRunnable:
return "IsolateRunnable";
case kIsolateExit:
return "IsolateExit";
case kIsolateUpdate:
return "IsolateUpdate";
case kServiceExtensionAdded:
return "ServiceExtensionAdded";
case kIsolateReload:
return "IsolateReload";
case kPauseStart:
return "PauseStart";
case kPauseExit:
return "PauseExit";
case kPauseBreakpoint:
return "PauseBreakpoint";
case kPauseInterrupted:
return "PauseInterrupted";
case kPauseException:
return "PauseException";
case kPausePostRequest:
return "PausePostRequest";
case kNone:
return "None";
case kResume:
return "Resume";
case kBreakpointAdded:
return "BreakpointAdded";
case kBreakpointResolved:
return "BreakpointResolved";
case kBreakpointRemoved:
return "BreakpointRemoved";
case kBreakpointUpdated:
return "BreakpointUpdated";
case kGC:
return "GC"; // TODO(koda): Change to GarbageCollected.
case kInspect:
return "Inspect";
case kEmbedder:
return embedder_kind();
case kLogging:
return "Logging";
case kDebuggerSettingsUpdate:
return "_DebuggerSettingsUpdate";
case kIllegal:
return "Illegal";
case kExtension:
return "Extension";
case kTimelineEvents:
return "TimelineEvents";
case kTimelineStreamSubscriptionsUpdate:
return "TimelineStreamSubscriptionsUpdate";
case kUserTagChanged:
return "UserTagChanged";
case kCpuSamples:
return "CpuSamples";
default:
UNREACHABLE();
return "Unknown";
}
}
const StreamInfo* ServiceEvent::stream_info() const {
switch (kind()) {
case kVMUpdate:
case kVMFlagUpdate:
return &Service::vm_stream;
case kIsolateStart:
case kIsolateRunnable:
case kIsolateExit:
case kIsolateUpdate:
case kIsolateReload:
case kServiceExtensionAdded:
return &Service::isolate_stream;
case kPauseStart:
case kPauseExit:
case kPauseBreakpoint:
case kPauseInterrupted:
case kPauseException:
case kPausePostRequest:
case kNone:
case kResume:
case kBreakpointAdded:
case kBreakpointResolved:
case kBreakpointRemoved:
case kBreakpointUpdated:
case kInspect:
case kDebuggerSettingsUpdate:
return &Service::debug_stream;
case kGC:
return &Service::gc_stream;
case kLogging:
return &Service::logging_stream;
case kExtension:
return &Service::extension_stream;
case kTimelineEvents:
case kTimelineStreamSubscriptionsUpdate:
return &Service::timeline_stream;
case kEmbedder:
return nullptr;
case kCpuSamples:
case kUserTagChanged:
return &Service::profiler_stream;
default:
UNREACHABLE();
return nullptr;
}
}
const char* ServiceEvent::stream_id() const {
const StreamInfo* stream = stream_info();
if (stream == NULL) {
ASSERT(kind() == kEmbedder);
return embedder_stream_id_;
} else {
return stream->id();
}
}
void ServiceEvent::PrintJSON(JSONStream* js) const {
JSONObject jsobj(js);
PrintJSONHeader(&jsobj);
if (kind() == kVMFlagUpdate) {
jsobj.AddProperty("flag", flag_name());
// For backwards compatibility, "new_value" is also provided.
jsobj.AddProperty("newValue", flag_new_value());
}
if (kind() == kUserTagChanged) {
jsobj.AddProperty("previousTag", previous_tag());
jsobj.AddProperty("updatedTag", updated_tag());
}
if (kind() == kIsolateReload) {
if (reload_error_ == NULL) {
jsobj.AddProperty("status", "success");
} else {
jsobj.AddProperty("status", "failure");
jsobj.AddProperty("reloadError", *(reload_error()));
}
}
if (kind() == kServiceExtensionAdded) {
ASSERT(extension_rpc_ != NULL);
jsobj.AddProperty("extensionRPC", extension_rpc_->ToCString());
}
if (kind() == kPauseBreakpoint) {
JSONArray jsarr(&jsobj, "pauseBreakpoints");
// TODO(rmacnak): If we are paused at more than one breakpoint,
// provide it here.
if (breakpoint() != NULL) {
jsarr.AddValue(breakpoint());
}
} else {
if (breakpoint() != NULL) {
jsobj.AddProperty("breakpoint", breakpoint());
}
}
if (kind() == kTimelineEvents) {
jsobj.AddProperty("timelineEvents", timeline_event_block_);
}
if (kind() == kTimelineStreamSubscriptionsUpdate) {
JSONArray arr(&jsobj, "updatedStreams");
Timeline::PrintFlagsToJSONArray(&arr);
}
if (kind() == kDebuggerSettingsUpdate) {
JSONObject jssettings(&jsobj, "_debuggerSettings");
isolate()->debugger()->PrintSettingsToJSONObject(&jssettings);
}
#if !defined(DART_PRECOMPILED_RUNTIME)
if (top_frame() != nullptr) {
JSONObject jsFrame(&jsobj, "topFrame");
top_frame()->PrintToJSONObject(&jsFrame);
intptr_t index = 0; // Avoid ambiguity in call to AddProperty.
jsFrame.AddProperty("index", index);
}
#endif
if (exception() != NULL) {
jsobj.AddProperty("exception", *(exception()));
}
if (at_async_jump()) {
jsobj.AddProperty("atAsyncSuspension", true);
}
if (inspectee() != NULL) {
jsobj.AddProperty("inspectee", *(inspectee()));
}
if (gc_stats() != NULL) {
jsobj.AddProperty("reason", Heap::GCReasonToString(gc_stats()->reason_));
isolate_group()->heap()->PrintToJSONObject(Heap::kNew, &jsobj);
isolate_group()->heap()->PrintToJSONObject(Heap::kOld, &jsobj);
}
if (bytes() != NULL) {
jsobj.AddPropertyBase64("bytes", bytes(), bytes_length());
}
if (kind() == kLogging) {
JSONObject logRecord(&jsobj, "logRecord");
logRecord.AddProperty("type", "LogRecord");
logRecord.AddProperty64("sequenceNumber", log_record_.sequence_number);
logRecord.AddPropertyTimeMillis("time", log_record_.timestamp);
logRecord.AddProperty64("level", log_record_.level);
logRecord.AddProperty("loggerName", *(log_record_.name));
logRecord.AddProperty("message", *(log_record_.message));
logRecord.AddProperty("zone", *(log_record_.zone));
logRecord.AddProperty("error", *(log_record_.error));
logRecord.AddProperty("stackTrace", *(log_record_.stack_trace));
}
if (kind() == kExtension) {
js->AppendSerializedObject("extensionData",
extension_event_.event_data->ToCString());
}
if (kind() == kCpuSamples) {
JSONObject cpu_profile(&jsobj, "cpuSamples");
cpu_profile_->PrintProfileJSON(&cpu_profile, /*include_code_samples=*/false,
/*is_event=*/true);
}
}
void ServiceEvent::PrintJSONHeader(JSONObject* jsobj) const {
ASSERT(jsobj != NULL);
jsobj->AddProperty("type", "Event");
jsobj->AddProperty("kind", KindAsCString());
if (kind() == kExtension) {
ASSERT(extension_event_.event_kind != NULL);
jsobj->AddProperty("extensionKind",
extension_event_.event_kind->ToCString());
}
if (isolate() == NULL) {
jsobj->AddPropertyVM("vm");
} else {
jsobj->AddProperty("isolate", isolate());
}
ASSERT(timestamp_ != -1);
jsobj->AddPropertyTimeMillis("timestamp", timestamp_);
}
#endif // !PRODUCT
} // namespace dart