| // Copyright (c) 2012, 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 "bin/dartutils.h" |
| |
| #include "bin/crypto.h" |
| #include "bin/directory.h" |
| #include "bin/file.h" |
| #include "bin/io_buffer.h" |
| #include "bin/namespace.h" |
| #include "bin/platform.h" |
| #include "bin/utils.h" |
| #include "include/dart_api.h" |
| #include "include/dart_native_api.h" |
| #include "include/dart_tools_api.h" |
| #include "platform/assert.h" |
| #include "platform/globals.h" |
| #include "platform/memory_sanitizer.h" |
| #include "platform/utils.h" |
| |
| // Return the error from the containing function if handle is in error handle. |
| #define RETURN_IF_ERROR(handle) \ |
| { \ |
| Dart_Handle __handle = handle; \ |
| if (Dart_IsError((__handle))) { \ |
| return __handle; \ |
| } \ |
| } |
| |
| namespace dart { |
| namespace bin { |
| |
| const char* DartUtils::original_working_directory = NULL; |
| const char* const DartUtils::kDartScheme = "dart:"; |
| const char* const DartUtils::kAsyncLibURL = "dart:async"; |
| const char* const DartUtils::kBuiltinLibURL = "dart:_builtin"; |
| const char* const DartUtils::kCoreLibURL = "dart:core"; |
| const char* const DartUtils::kInternalLibURL = "dart:_internal"; |
| const char* const DartUtils::kIsolateLibURL = "dart:isolate"; |
| const char* const DartUtils::kHttpLibURL = "dart:_http"; |
| const char* const DartUtils::kIOLibURL = "dart:io"; |
| const char* const DartUtils::kIOLibPatchURL = "dart:io-patch"; |
| const char* const DartUtils::kCLILibURL = "dart:cli"; |
| const char* const DartUtils::kCLILibPatchURL = "dart:cli-patch"; |
| const char* const DartUtils::kUriLibURL = "dart:uri"; |
| const char* const DartUtils::kHttpScheme = "http:"; |
| const char* const DartUtils::kVMServiceLibURL = "dart:vmservice"; |
| |
| dart::SimpleHashMap* DartUtils::environment_ = NULL; |
| |
| MagicNumberData appjit_magic_number = {8, {0xdc, 0xdc, 0xf6, 0xf6, 0, 0, 0, 0}}; |
| MagicNumberData kernel_magic_number = {4, {0x90, 0xab, 0xcd, 0xef}}; |
| MagicNumberData kernel_list_magic_number = { |
| 7, |
| {0x23, 0x40, 0x64, 0x69, 0x6c, 0x6c, 0x0a}}; // #@dill\n |
| MagicNumberData gzip_magic_number = {2, {0x1f, 0x8b, 0, 0}}; |
| |
| static bool IsWindowsHost() { |
| #if defined(DART_HOST_OS_WINDOWS) |
| return true; |
| #else // defined(DART_HOST_OS_WINDOWS) |
| return false; |
| #endif // defined(DART_HOST_OS_WINDOWS) |
| } |
| |
| Dart_Handle CommandLineOptions::CreateRuntimeOptions() { |
| Dart_Handle string_type = DartUtils::GetDartType("dart:core", "String"); |
| if (Dart_IsError(string_type)) { |
| return string_type; |
| } |
| Dart_Handle dart_arguments = |
| Dart_NewListOfTypeFilled(string_type, Dart_EmptyString(), count_); |
| if (Dart_IsError(dart_arguments)) { |
| return dart_arguments; |
| } |
| for (int i = 0; i < count_; i++) { |
| Dart_Handle argument_value = DartUtils::NewString(GetArgument(i)); |
| if (Dart_IsError(argument_value)) { |
| return argument_value; |
| } |
| Dart_Handle result = Dart_ListSetAt(dart_arguments, i, argument_value); |
| if (Dart_IsError(result)) { |
| return result; |
| } |
| } |
| return dart_arguments; |
| } |
| |
| int64_t DartUtils::GetIntegerValue(Dart_Handle value_obj) { |
| int64_t value = 0; |
| Dart_Handle result = Dart_IntegerToInt64(value_obj, &value); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| return value; |
| } |
| |
| int64_t DartUtils::GetInt64ValueCheckRange(Dart_Handle value_obj, |
| int64_t lower, |
| int64_t upper) { |
| int64_t value = DartUtils::GetIntegerValue(value_obj); |
| if (value < lower || upper < value) { |
| Dart_PropagateError(Dart_NewApiError("Value outside expected range")); |
| } |
| return value; |
| } |
| |
| intptr_t DartUtils::GetIntptrValue(Dart_Handle value_obj) { |
| int64_t value = 0; |
| Dart_Handle result = Dart_IntegerToInt64(value_obj, &value); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| if (value < kIntptrMin || kIntptrMax < value) { |
| Dart_PropagateError(Dart_NewApiError("Value outside intptr_t range")); |
| } |
| return static_cast<intptr_t>(value); |
| } |
| |
| bool DartUtils::GetInt64Value(Dart_Handle value_obj, int64_t* value) { |
| bool valid = Dart_IsInteger(value_obj); |
| if (valid) { |
| Dart_Handle result = Dart_IntegerFitsIntoInt64(value_obj, &valid); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| } |
| if (!valid) return false; |
| Dart_Handle result = Dart_IntegerToInt64(value_obj, value); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| return true; |
| } |
| |
| const char* DartUtils::GetStringValue(Dart_Handle str_obj) { |
| const char* cstring = NULL; |
| Dart_Handle result = Dart_StringToCString(str_obj, &cstring); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| return cstring; |
| } |
| |
| bool DartUtils::GetBooleanValue(Dart_Handle bool_obj) { |
| bool value = false; |
| Dart_Handle result = Dart_BooleanValue(bool_obj, &value); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| return value; |
| } |
| |
| bool DartUtils::GetNativeBooleanArgument(Dart_NativeArguments args, |
| intptr_t index) { |
| bool value = false; |
| Dart_Handle result = Dart_GetNativeBooleanArgument(args, index, &value); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| return value; |
| } |
| |
| int64_t DartUtils::GetNativeIntegerArgument(Dart_NativeArguments args, |
| intptr_t index) { |
| int64_t value = 0; |
| Dart_Handle result = Dart_GetNativeIntegerArgument(args, index, &value); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| return value; |
| } |
| |
| intptr_t DartUtils::GetNativeIntptrArgument(Dart_NativeArguments args, |
| intptr_t index) { |
| int64_t value = GetNativeIntegerArgument(args, index); |
| if (value < kIntptrMin || kIntptrMax < value) { |
| Dart_PropagateError(Dart_NewApiError("Value outside intptr_t range")); |
| } |
| return static_cast<intptr_t>(value); |
| } |
| |
| const char* DartUtils::GetNativeStringArgument(Dart_NativeArguments args, |
| intptr_t index) { |
| char* tmp = NULL; |
| Dart_Handle result = |
| Dart_GetNativeStringArgument(args, index, reinterpret_cast<void**>(&tmp)); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| if (tmp != NULL) { |
| return tmp; |
| } |
| const char* cstring = NULL; |
| result = Dart_StringToCString(result, &cstring); |
| if (Dart_IsError(result)) { |
| Dart_PropagateError(result); |
| } |
| ASSERT(cstring != NULL); |
| return cstring; |
| } |
| |
| Dart_Handle DartUtils::SetIntegerField(Dart_Handle handle, |
| const char* name, |
| int64_t val) { |
| return Dart_SetField(handle, NewString(name), Dart_NewInteger(val)); |
| } |
| |
| Dart_Handle DartUtils::SetStringField(Dart_Handle handle, |
| const char* name, |
| const char* val) { |
| return Dart_SetField(handle, NewString(name), NewString(val)); |
| } |
| |
| bool DartUtils::IsDartSchemeURL(const char* url_name) { |
| static const intptr_t kDartSchemeLen = strlen(kDartScheme); |
| // If the URL starts with "dart:" then it is considered as a special |
| // library URL which is handled differently from other URLs. |
| return (strncmp(url_name, kDartScheme, kDartSchemeLen) == 0); |
| } |
| |
| bool DartUtils::IsHttpSchemeURL(const char* url_name) { |
| static const intptr_t kHttpSchemeLen = strlen(kHttpScheme); |
| return (strncmp(url_name, kHttpScheme, kHttpSchemeLen) == 0); |
| } |
| |
| bool DartUtils::IsDartIOLibURL(const char* url_name) { |
| return (strcmp(url_name, kIOLibURL) == 0); |
| } |
| |
| bool DartUtils::IsDartCLILibURL(const char* url_name) { |
| return (strcmp(url_name, kCLILibURL) == 0); |
| } |
| |
| bool DartUtils::IsDartHttpLibURL(const char* url_name) { |
| return (strcmp(url_name, kHttpLibURL) == 0); |
| } |
| |
| bool DartUtils::IsDartBuiltinLibURL(const char* url_name) { |
| return (strcmp(url_name, kBuiltinLibURL) == 0); |
| } |
| |
| const char* DartUtils::RemoveScheme(const char* url) { |
| const char* colon = strchr(url, ':'); |
| if (colon == NULL) { |
| return url; |
| } else { |
| return colon + 1; |
| } |
| } |
| |
| char* DartUtils::DirName(const char* url) { |
| const char* slash = strrchr(url, File::PathSeparator()[0]); |
| if (slash == NULL) { |
| return Utils::StrDup(url); |
| } else { |
| return Utils::StrNDup(url, slash - url + 1); |
| } |
| } |
| |
| void* DartUtils::OpenFile(const char* name, bool write) { |
| File* file = |
| File::Open(NULL, name, write ? File::kWriteTruncate : File::kRead); |
| return reinterpret_cast<void*>(file); |
| } |
| |
| void* DartUtils::OpenFileUri(const char* uri, bool write) { |
| File* file = |
| File::OpenUri(NULL, uri, write ? File::kWriteTruncate : File::kRead); |
| return reinterpret_cast<void*>(file); |
| } |
| |
| void DartUtils::ReadFile(uint8_t** data, intptr_t* len, void* stream) { |
| ASSERT(data != NULL); |
| ASSERT(len != NULL); |
| ASSERT(stream != NULL); |
| File* file_stream = reinterpret_cast<File*>(stream); |
| int64_t file_len = file_stream->Length(); |
| if ((file_len < 0) || (file_len > kIntptrMax)) { |
| *data = NULL; |
| *len = -1; // Indicates read was not successful. |
| return; |
| } |
| *len = static_cast<intptr_t>(file_len); |
| *data = reinterpret_cast<uint8_t*>(malloc(*len)); |
| if (!file_stream->ReadFully(*data, *len)) { |
| free(*data); |
| *data = NULL; |
| *len = -1; // Indicates read was not successful. |
| return; |
| } |
| } |
| |
| void DartUtils::WriteFile(const void* buffer, |
| intptr_t num_bytes, |
| void* stream) { |
| ASSERT(stream != NULL); |
| File* file_stream = reinterpret_cast<File*>(stream); |
| bool bytes_written = file_stream->WriteFully(buffer, num_bytes); |
| ASSERT(bytes_written); |
| } |
| |
| void DartUtils::CloseFile(void* stream) { |
| File* file = reinterpret_cast<File*>(stream); |
| file->Release(); |
| } |
| |
| bool DartUtils::EntropySource(uint8_t* buffer, intptr_t length) { |
| return Crypto::GetRandomBytes(length, buffer); |
| } |
| |
| static Dart_Handle SingleArgDart_Invoke(Dart_Handle lib, |
| const char* method, |
| Dart_Handle arg) { |
| const int kNumArgs = 1; |
| Dart_Handle dart_args[kNumArgs]; |
| dart_args[0] = arg; |
| return Dart_Invoke(lib, DartUtils::NewString(method), kNumArgs, dart_args); |
| } |
| |
| // TODO(iposva): Allocate from the zone instead of leaking error string |
| // here. On the other hand the binary is about to exit anyway. |
| #define SET_ERROR_MSG(error_msg, format, ...) \ |
| intptr_t len = snprintf(NULL, 0, format, __VA_ARGS__); \ |
| char* msg = reinterpret_cast<char*>(malloc(len + 1)); \ |
| snprintf(msg, len + 1, format, __VA_ARGS__); \ |
| *error_msg = msg |
| |
| static uint8_t* ReadFileFully(const char* filename, |
| intptr_t* file_len, |
| const char** error_msg) { |
| *file_len = -1; |
| void* stream = DartUtils::OpenFile(filename, false); |
| if (stream == NULL) { |
| SET_ERROR_MSG(error_msg, "Unable to open file: %s", filename); |
| return NULL; |
| } |
| uint8_t* text_buffer = NULL; |
| DartUtils::ReadFile(&text_buffer, file_len, stream); |
| if (text_buffer == NULL || *file_len == -1) { |
| *error_msg = "Unable to read file contents"; |
| text_buffer = NULL; |
| } |
| DartUtils::CloseFile(stream); |
| return text_buffer; |
| } |
| |
| Dart_Handle DartUtils::ReadStringFromFile(const char* filename) { |
| const char* error_msg = NULL; |
| intptr_t len; |
| uint8_t* text_buffer = ReadFileFully(filename, &len, &error_msg); |
| if (text_buffer == NULL) { |
| return Dart_NewApiError(error_msg); |
| } |
| Dart_Handle str = Dart_NewStringFromUTF8(text_buffer, len); |
| free(text_buffer); |
| return str; |
| } |
| |
| Dart_Handle DartUtils::MakeUint8Array(const void* buffer, intptr_t len) { |
| Dart_Handle array = Dart_NewTypedData(Dart_TypedData_kUint8, len); |
| RETURN_IF_ERROR(array); |
| { |
| Dart_TypedData_Type td_type; |
| void* td_data; |
| intptr_t td_len; |
| Dart_Handle result = |
| Dart_TypedDataAcquireData(array, &td_type, &td_data, &td_len); |
| RETURN_IF_ERROR(result); |
| ASSERT(td_type == Dart_TypedData_kUint8); |
| ASSERT(td_len == len); |
| ASSERT(td_data != NULL); |
| memmove(td_data, buffer, td_len); |
| result = Dart_TypedDataReleaseData(array); |
| RETURN_IF_ERROR(result); |
| } |
| return array; |
| } |
| |
| Dart_Handle DartUtils::SetWorkingDirectory() { |
| Dart_Handle directory = NewString(original_working_directory); |
| return SingleArgDart_Invoke(LookupBuiltinLib(), "_setWorkingDirectory", |
| directory); |
| } |
| |
| Dart_Handle DartUtils::ResolveScript(Dart_Handle url) { |
| const int kNumArgs = 1; |
| Dart_Handle dart_args[kNumArgs]; |
| dart_args[0] = url; |
| return Dart_Invoke(DartUtils::LookupBuiltinLib(), |
| NewString("_resolveScriptUri"), kNumArgs, dart_args); |
| } |
| |
| static bool CheckMagicNumber(const uint8_t* buffer, |
| intptr_t buffer_length, |
| const MagicNumberData& magic_number) { |
| if ((buffer_length >= magic_number.length)) { |
| return memcmp(buffer, magic_number.bytes, magic_number.length) == 0; |
| } |
| return false; |
| } |
| |
| DartUtils::MagicNumber DartUtils::SniffForMagicNumber(const char* filename) { |
| MagicNumber magic_number = DartUtils::kUnknownMagicNumber; |
| if (File::GetType(NULL, filename, true) == File::kIsFile) { |
| File* file = File::Open(NULL, filename, File::kRead); |
| if (file != NULL) { |
| RefCntReleaseScope<File> rs(file); |
| intptr_t max_magic_length = 0; |
| max_magic_length = |
| Utils::Maximum(max_magic_length, appjit_magic_number.length); |
| max_magic_length = |
| Utils::Maximum(max_magic_length, kernel_magic_number.length); |
| max_magic_length = |
| Utils::Maximum(max_magic_length, kernel_list_magic_number.length); |
| max_magic_length = |
| Utils::Maximum(max_magic_length, gzip_magic_number.length); |
| ASSERT(max_magic_length <= 8); |
| uint8_t header[8]; |
| if (file->ReadFully(&header, max_magic_length)) { |
| magic_number = DartUtils::SniffForMagicNumber(header, sizeof(header)); |
| } |
| } |
| } |
| return magic_number; |
| } |
| |
| DartUtils::MagicNumber DartUtils::SniffForMagicNumber(const uint8_t* buffer, |
| intptr_t buffer_length) { |
| if (CheckMagicNumber(buffer, buffer_length, appjit_magic_number)) { |
| return kAppJITMagicNumber; |
| } |
| |
| if (CheckMagicNumber(buffer, buffer_length, kernel_magic_number)) { |
| return kKernelMagicNumber; |
| } |
| |
| if (CheckMagicNumber(buffer, buffer_length, kernel_list_magic_number)) { |
| return kKernelListMagicNumber; |
| } |
| |
| if (CheckMagicNumber(buffer, buffer_length, gzip_magic_number)) { |
| return kGzipMagicNumber; |
| } |
| |
| if (CheckMagicNumber(buffer, buffer_length, gzip_magic_number)) { |
| return kGzipMagicNumber; |
| } |
| |
| return kUnknownMagicNumber; |
| } |
| |
| Dart_Handle DartUtils::PrepareBuiltinLibrary(Dart_Handle builtin_lib, |
| Dart_Handle internal_lib, |
| bool is_service_isolate, |
| bool trace_loading) { |
| // Setup the internal library's 'internalPrint' function. |
| Dart_Handle print = |
| Dart_Invoke(builtin_lib, NewString("_getPrintClosure"), 0, NULL); |
| RETURN_IF_ERROR(print); |
| Dart_Handle result = |
| Dart_SetField(internal_lib, NewString("_printClosure"), print); |
| RETURN_IF_ERROR(result); |
| |
| if (!is_service_isolate) { |
| if (IsWindowsHost()) { |
| result = Dart_SetField(builtin_lib, NewString("_isWindows"), Dart_True()); |
| RETURN_IF_ERROR(result); |
| } |
| if (trace_loading) { |
| result = |
| Dart_SetField(builtin_lib, NewString("_traceLoading"), Dart_True()); |
| RETURN_IF_ERROR(result); |
| } |
| // Set current working directory. |
| result = SetWorkingDirectory(); |
| RETURN_IF_ERROR(result); |
| } |
| return Dart_True(); |
| } |
| |
| Dart_Handle DartUtils::PrepareCoreLibrary(Dart_Handle core_lib, |
| Dart_Handle io_lib, |
| bool is_service_isolate) { |
| if (!is_service_isolate) { |
| // Setup the 'Uri.base' getter in dart:core. |
| Dart_Handle uri_base = |
| Dart_Invoke(io_lib, NewString("_getUriBaseClosure"), 0, NULL); |
| RETURN_IF_ERROR(uri_base); |
| Dart_Handle result = |
| Dart_SetField(core_lib, NewString("_uriBaseClosure"), uri_base); |
| RETURN_IF_ERROR(result); |
| } |
| return Dart_True(); |
| } |
| |
| Dart_Handle DartUtils::PrepareAsyncLibrary(Dart_Handle async_lib, |
| Dart_Handle isolate_lib) { |
| Dart_Handle schedule_immediate_closure = Dart_Invoke( |
| isolate_lib, NewString("_getIsolateScheduleImmediateClosure"), 0, NULL); |
| RETURN_IF_ERROR(schedule_immediate_closure); |
| Dart_Handle args[1]; |
| args[0] = schedule_immediate_closure; |
| return Dart_Invoke(async_lib, NewString("_setScheduleImmediateClosure"), 1, |
| args); |
| } |
| |
| Dart_Handle DartUtils::PrepareIOLibrary(Dart_Handle io_lib) { |
| return Dart_Invoke(io_lib, NewString("_setupHooks"), 0, NULL); |
| } |
| |
| Dart_Handle DartUtils::PrepareIsolateLibrary(Dart_Handle isolate_lib) { |
| return Dart_Invoke(isolate_lib, NewString("_setupHooks"), 0, NULL); |
| } |
| |
| Dart_Handle DartUtils::PrepareCLILibrary(Dart_Handle cli_lib) { |
| Dart_Handle wait_for_event_handle = |
| Dart_Invoke(cli_lib, NewString("_getWaitForEvent"), 0, NULL); |
| RETURN_IF_ERROR(wait_for_event_handle); |
| return Dart_SetField(cli_lib, NewString("_waitForEventClosure"), |
| wait_for_event_handle); |
| } |
| |
| Dart_Handle DartUtils::SetupPackageConfig(const char* packages_config) { |
| Dart_Handle result = Dart_Null(); |
| |
| if (packages_config != NULL) { |
| result = NewString(packages_config); |
| RETURN_IF_ERROR(result); |
| const int kNumArgs = 1; |
| Dart_Handle dart_args[kNumArgs]; |
| dart_args[0] = result; |
| result = Dart_Invoke(DartUtils::LookupBuiltinLib(), |
| NewString("_setPackagesMap"), kNumArgs, dart_args); |
| } |
| return result; |
| } |
| |
| Dart_Handle DartUtils::PrepareForScriptLoading(bool is_service_isolate, |
| bool trace_loading) { |
| // First ensure all required libraries are available. |
| Dart_Handle url = NewString(kCoreLibURL); |
| RETURN_IF_ERROR(url); |
| Dart_Handle core_lib = Dart_LookupLibrary(url); |
| RETURN_IF_ERROR(core_lib); |
| url = NewString(kAsyncLibURL); |
| RETURN_IF_ERROR(url); |
| Dart_Handle async_lib = Dart_LookupLibrary(url); |
| RETURN_IF_ERROR(async_lib); |
| url = NewString(kIsolateLibURL); |
| RETURN_IF_ERROR(url); |
| Dart_Handle isolate_lib = Dart_LookupLibrary(url); |
| RETURN_IF_ERROR(isolate_lib); |
| url = NewString(kInternalLibURL); |
| RETURN_IF_ERROR(url); |
| Dart_Handle internal_lib = Dart_LookupLibrary(url); |
| RETURN_IF_ERROR(internal_lib); |
| Dart_Handle builtin_lib = |
| Builtin::LoadAndCheckLibrary(Builtin::kBuiltinLibrary); |
| RETURN_IF_ERROR(builtin_lib); |
| Builtin::SetNativeResolver(Builtin::kBuiltinLibrary); |
| Dart_Handle io_lib = Builtin::LoadAndCheckLibrary(Builtin::kIOLibrary); |
| RETURN_IF_ERROR(io_lib); |
| Builtin::SetNativeResolver(Builtin::kIOLibrary); |
| Dart_Handle cli_lib = Builtin::LoadAndCheckLibrary(Builtin::kCLILibrary); |
| RETURN_IF_ERROR(cli_lib); |
| Builtin::SetNativeResolver(Builtin::kCLILibrary); |
| |
| // We need to ensure that all the scripts loaded so far are finalized |
| // as we are about to invoke some Dart code below to setup closures. |
| Dart_Handle result = Dart_FinalizeLoading(false); |
| RETURN_IF_ERROR(result); |
| |
| result = PrepareBuiltinLibrary(builtin_lib, internal_lib, is_service_isolate, |
| trace_loading); |
| RETURN_IF_ERROR(result); |
| |
| RETURN_IF_ERROR(PrepareAsyncLibrary(async_lib, isolate_lib)); |
| RETURN_IF_ERROR(PrepareCoreLibrary(core_lib, io_lib, is_service_isolate)); |
| RETURN_IF_ERROR(PrepareIsolateLibrary(isolate_lib)); |
| RETURN_IF_ERROR(PrepareIOLibrary(io_lib)); |
| RETURN_IF_ERROR(PrepareCLILibrary(cli_lib)); |
| return result; |
| } |
| |
| Dart_Handle DartUtils::SetupIOLibrary(const char* namespc_path, |
| const char* script_uri, |
| bool disable_exit) { |
| Dart_Handle io_lib_url = NewString(kIOLibURL); |
| RETURN_IF_ERROR(io_lib_url); |
| Dart_Handle io_lib = Dart_LookupLibrary(io_lib_url); |
| RETURN_IF_ERROR(io_lib); |
| |
| if (namespc_path != NULL) { |
| Dart_Handle namespc_type = GetDartType(DartUtils::kIOLibURL, "_Namespace"); |
| RETURN_IF_ERROR(namespc_type); |
| Dart_Handle args[1]; |
| args[0] = NewString(namespc_path); |
| RETURN_IF_ERROR(args[0]); |
| Dart_Handle result = |
| Dart_Invoke(namespc_type, NewString("_setupNamespace"), 1, args); |
| RETURN_IF_ERROR(result); |
| } |
| |
| if (disable_exit) { |
| Dart_Handle embedder_config_type = |
| GetDartType(DartUtils::kIOLibURL, "_EmbedderConfig"); |
| RETURN_IF_ERROR(embedder_config_type); |
| Dart_Handle result = Dart_SetField(embedder_config_type, |
| NewString("_mayExit"), Dart_False()); |
| RETURN_IF_ERROR(result); |
| } |
| |
| Dart_Handle platform_type = GetDartType(DartUtils::kIOLibURL, "_Platform"); |
| RETURN_IF_ERROR(platform_type); |
| Dart_Handle script_name = NewString("_nativeScript"); |
| RETURN_IF_ERROR(script_name); |
| Dart_Handle dart_script = NewString(script_uri); |
| RETURN_IF_ERROR(dart_script); |
| Dart_Handle set_script_name = |
| Dart_SetField(platform_type, script_name, dart_script); |
| RETURN_IF_ERROR(set_script_name); |
| |
| #if !defined(PRODUCT) |
| Dart_Handle network_profiling_type = |
| GetDartType(DartUtils::kIOLibURL, "_NetworkProfiling"); |
| RETURN_IF_ERROR(network_profiling_type); |
| Dart_Handle result = |
| Dart_Invoke(network_profiling_type, |
| NewString("_registerServiceExtension"), 0, nullptr); |
| RETURN_IF_ERROR(result); |
| #endif // !defined(PRODUCT) |
| return Dart_Null(); |
| } |
| |
| bool DartUtils::PostNull(Dart_Port port_id) { |
| // Post a message with just the null object. |
| return Dart_PostCObject(port_id, CObject::Null()->AsApiCObject()); |
| } |
| |
| bool DartUtils::PostInt32(Dart_Port port_id, int32_t value) { |
| // Post a message with the integer value. |
| int32_t min = 0xc0000000; // -1073741824 |
| int32_t max = 0x3fffffff; // 1073741823 |
| ASSERT(min <= value && value < max); |
| Dart_CObject object; |
| object.type = Dart_CObject_kInt32; |
| object.value.as_int32 = value; |
| return Dart_PostCObject(port_id, &object); |
| } |
| |
| bool DartUtils::PostInt64(Dart_Port port_id, int64_t value) { |
| // Post a message with the integer value. |
| Dart_CObject object; |
| object.type = Dart_CObject_kInt64; |
| object.value.as_int64 = value; |
| return Dart_PostCObject(port_id, &object); |
| } |
| |
| bool DartUtils::PostString(Dart_Port port_id, const char* value) { |
| Dart_CObject* object = CObject::NewString(value); |
| return Dart_PostCObject(port_id, object); |
| } |
| |
| Dart_Handle DartUtils::GetDartType(const char* library_url, |
| const char* class_name) { |
| return Dart_GetNonNullableType(Dart_LookupLibrary(NewString(library_url)), |
| NewString(class_name), 0, NULL); |
| } |
| |
| Dart_Handle DartUtils::NewDartOSError() { |
| // Extract the current OS error. |
| OSError os_error; |
| return NewDartOSError(&os_error); |
| } |
| |
| Dart_Handle DartUtils::NewDartOSError(OSError* os_error) { |
| // Create a dart:io OSError object with the information retrieved from the OS. |
| Dart_Handle type = GetDartType(kIOLibURL, "OSError"); |
| ASSERT(!Dart_IsError(type)); |
| Dart_Handle args[2]; |
| args[0] = NewString(os_error->message()); |
| args[1] = Dart_NewInteger(os_error->code()); |
| return Dart_New(type, Dart_Null(), 2, args); |
| } |
| |
| Dart_Handle DartUtils::NewDartExceptionWithOSError(const char* library_url, |
| const char* exception_name, |
| const char* message, |
| Dart_Handle os_error) { |
| // Create a Dart Exception object with a message and an OSError. |
| Dart_Handle type = GetDartType(library_url, exception_name); |
| ASSERT(!Dart_IsError(type)); |
| Dart_Handle args[2]; |
| args[0] = NewString(message); |
| args[1] = os_error; |
| return Dart_New(type, Dart_Null(), 2, args); |
| } |
| |
| Dart_Handle DartUtils::NewDartExceptionWithMessage(const char* library_url, |
| const char* exception_name, |
| const char* message) { |
| // Create a Dart Exception object with a message. |
| Dart_Handle type = GetDartType(library_url, exception_name); |
| ASSERT(!Dart_IsError(type)); |
| if (message != NULL) { |
| Dart_Handle args[1]; |
| args[0] = NewString(message); |
| return Dart_New(type, Dart_Null(), 1, args); |
| } else { |
| return Dart_New(type, Dart_Null(), 0, NULL); |
| } |
| } |
| |
| Dart_Handle DartUtils::NewDartArgumentError(const char* message) { |
| return NewDartExceptionWithMessage(kCoreLibURL, "ArgumentError", message); |
| } |
| |
| Dart_Handle DartUtils::NewDartFormatException(const char* message) { |
| return NewDartExceptionWithMessage(kCoreLibURL, "FormatException", message); |
| } |
| |
| Dart_Handle DartUtils::NewDartUnsupportedError(const char* message) { |
| return NewDartExceptionWithMessage(kCoreLibURL, "UnsupportedError", message); |
| } |
| |
| Dart_Handle DartUtils::NewDartIOException(const char* exception_name, |
| const char* message, |
| Dart_Handle os_error) { |
| // Create a dart:io exception object of the given type. |
| return NewDartExceptionWithOSError(kIOLibURL, exception_name, message, |
| os_error); |
| } |
| |
| Dart_Handle DartUtils::NewError(const char* format, ...) { |
| va_list measure_args; |
| va_start(measure_args, format); |
| intptr_t len = vsnprintf(NULL, 0, format, measure_args); |
| va_end(measure_args); |
| |
| char* buffer = reinterpret_cast<char*>(Dart_ScopeAllocate(len + 1)); |
| MSAN_UNPOISON(buffer, (len + 1)); |
| va_list print_args; |
| va_start(print_args, format); |
| vsnprintf(buffer, (len + 1), format, print_args); |
| va_end(print_args); |
| |
| return Dart_NewApiError(buffer); |
| } |
| |
| Dart_Handle DartUtils::NewInternalError(const char* message) { |
| return NewDartExceptionWithMessage(kCoreLibURL, "_InternalError", message); |
| } |
| |
| Dart_Handle DartUtils::NewStringFormatted(const char* format, ...) { |
| va_list measure_args; |
| va_start(measure_args, format); |
| intptr_t len = vsnprintf(NULL, 0, format, measure_args); |
| va_end(measure_args); |
| |
| char* buffer = reinterpret_cast<char*>(Dart_ScopeAllocate(len + 1)); |
| MSAN_UNPOISON(buffer, (len + 1)); |
| va_list print_args; |
| va_start(print_args, format); |
| vsnprintf(buffer, (len + 1), format, print_args); |
| va_end(print_args); |
| |
| return NewString(buffer); |
| } |
| |
| bool DartUtils::SetOriginalWorkingDirectory() { |
| // If we happen to re-initialize the Dart VM multiple times, make sure to free |
| // the old string (allocated by getcwd()) before setting a new one. |
| if (original_working_directory != nullptr) { |
| free(const_cast<char*>(original_working_directory)); |
| } |
| original_working_directory = Directory::CurrentNoScope(); |
| return original_working_directory != nullptr; |
| } |
| |
| void DartUtils::SetEnvironment(dart::SimpleHashMap* environment) { |
| environment_ = environment; |
| } |
| |
| Dart_Handle DartUtils::EnvironmentCallback(Dart_Handle name) { |
| uint8_t* utf8_array; |
| intptr_t utf8_len; |
| Dart_Handle result = Dart_Null(); |
| Dart_Handle handle = Dart_StringToUTF8(name, &utf8_array, &utf8_len); |
| if (Dart_IsError(handle)) { |
| handle = Dart_ThrowException( |
| DartUtils::NewDartArgumentError(Dart_GetError(handle))); |
| } else { |
| char* name_chars = reinterpret_cast<char*>(malloc(utf8_len + 1)); |
| memmove(name_chars, utf8_array, utf8_len); |
| name_chars[utf8_len] = '\0'; |
| const char* value = NULL; |
| if (environment_ != NULL) { |
| SimpleHashMap::Entry* entry = |
| environment_->Lookup(GetHashmapKeyFromString(name_chars), |
| SimpleHashMap::StringHash(name_chars), false); |
| if (entry != NULL) { |
| value = reinterpret_cast<char*>(entry->value); |
| } |
| } |
| if (value != NULL) { |
| result = Dart_NewStringFromUTF8(reinterpret_cast<const uint8_t*>(value), |
| strlen(value)); |
| if (Dart_IsError(result)) { |
| result = Dart_Null(); |
| } |
| } |
| free(name_chars); |
| } |
| return result; |
| } |
| |
| // Statically allocated Dart_CObject instances for immutable |
| // objects. As these will be used by different threads the use of |
| // these depends on the fact that the marking internally in the |
| // Dart_CObject structure is not marking simple value objects. |
| Dart_CObject CObject::api_null_ = {Dart_CObject_kNull, {false}}; |
| Dart_CObject CObject::api_true_ = {Dart_CObject_kBool, {true}}; |
| Dart_CObject CObject::api_false_ = {Dart_CObject_kBool, {false}}; |
| CObject CObject::null_(&api_null_); |
| CObject CObject::true_(&api_true_); |
| CObject CObject::false_(&api_false_); |
| |
| CObject* CObject::Null() { |
| return &null_; |
| } |
| |
| CObject* CObject::True() { |
| return &true_; |
| } |
| |
| CObject* CObject::False() { |
| return &false_; |
| } |
| |
| CObject* CObject::Bool(bool value) { |
| return value ? &true_ : &false_; |
| } |
| |
| Dart_CObject* CObject::New(Dart_CObject_Type type, int additional_bytes) { |
| Dart_CObject* cobject = reinterpret_cast<Dart_CObject*>( |
| Dart_ScopeAllocate(sizeof(Dart_CObject) + additional_bytes)); |
| cobject->type = type; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewInt32(int32_t value) { |
| Dart_CObject* cobject = New(Dart_CObject_kInt32); |
| cobject->value.as_int32 = value; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewInt64(int64_t value) { |
| Dart_CObject* cobject = New(Dart_CObject_kInt64); |
| cobject->value.as_int64 = value; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewIntptr(intptr_t value) { |
| // Pointer values passed as intptr_t are always send as int64_t. |
| Dart_CObject* cobject = New(Dart_CObject_kInt64); |
| cobject->value.as_int64 = value; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewDouble(double value) { |
| Dart_CObject* cobject = New(Dart_CObject_kDouble); |
| cobject->value.as_double = value; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewString(intptr_t length) { |
| Dart_CObject* cobject = New(Dart_CObject_kString, length + 1); |
| cobject->value.as_string = reinterpret_cast<char*>(cobject + 1); |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewString(const char* str) { |
| intptr_t length = strlen(str); |
| Dart_CObject* cobject = NewString(length); |
| memmove(cobject->value.as_string, str, length + 1); |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewArray(intptr_t length) { |
| Dart_CObject* cobject = |
| New(Dart_CObject_kArray, length * sizeof(Dart_CObject*)); // NOLINT |
| cobject->value.as_array.length = length; |
| cobject->value.as_array.values = |
| reinterpret_cast<Dart_CObject**>(cobject + 1); |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewUint8Array(intptr_t length) { |
| Dart_CObject* cobject = New(Dart_CObject_kTypedData, length); |
| cobject->value.as_typed_data.type = Dart_TypedData_kUint8; |
| cobject->value.as_typed_data.length = length; |
| cobject->value.as_typed_data.values = reinterpret_cast<uint8_t*>(cobject + 1); |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewUint32Array(intptr_t length) { |
| Dart_CObject* cobject = New(Dart_CObject_kTypedData, 4 * length); |
| cobject->value.as_typed_data.type = Dart_TypedData_kUint32; |
| cobject->value.as_typed_data.length = length; |
| cobject->value.as_typed_data.values = reinterpret_cast<uint8_t*>(cobject + 1); |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewExternalUint8Array(intptr_t length, |
| uint8_t* data, |
| void* peer, |
| Dart_HandleFinalizer callback) { |
| Dart_CObject* cobject = New(Dart_CObject_kExternalTypedData); |
| cobject->value.as_external_typed_data.type = Dart_TypedData_kUint8; |
| cobject->value.as_external_typed_data.length = length; |
| cobject->value.as_external_typed_data.data = data; |
| cobject->value.as_external_typed_data.peer = peer; |
| cobject->value.as_external_typed_data.callback = callback; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewNativePointer(intptr_t ptr, |
| intptr_t size, |
| Dart_HandleFinalizer callback) { |
| Dart_CObject* cobject = New(Dart_CObject_kNativePointer); |
| cobject->value.as_native_pointer.ptr = ptr; |
| cobject->value.as_native_pointer.size = size; |
| cobject->value.as_native_pointer.callback = callback; |
| return cobject; |
| } |
| |
| Dart_CObject* CObject::NewIOBuffer(int64_t length) { |
| // Make sure that we do not have an integer overflow here. Actual check |
| // against max elements will be done at the time of writing, as the constant |
| // is not part of the public API. |
| if ((length < 0) || (length > kIntptrMax)) { |
| return NULL; |
| } |
| uint8_t* data = IOBuffer::Allocate(static_cast<intptr_t>(length)); |
| if (data == NULL) { |
| return NULL; |
| } |
| return NewExternalUint8Array(static_cast<intptr_t>(length), data, data, |
| IOBuffer::Finalizer); |
| } |
| |
| void CObject::ShrinkIOBuffer(Dart_CObject* cobject, int64_t new_length) { |
| if (cobject == nullptr) return; |
| ASSERT(cobject->type == Dart_CObject_kExternalTypedData); |
| |
| const auto old_data = cobject->value.as_external_typed_data.data; |
| const auto old_length = cobject->value.as_external_typed_data.length; |
| |
| // We only shrink IOBuffers, never grow them. |
| ASSERT(0 <= new_length && new_length <= old_length); |
| |
| // We only reallocate if we think the freed space is worth reallocating. |
| // We consider it worthwhile when freed space is >=25% and we have at |
| // least 100 free bytes. |
| const auto free_memory = old_length - new_length; |
| if ((old_length >> 2) <= free_memory && 100 <= free_memory) { |
| const auto new_data = IOBuffer::Reallocate(old_data, new_length); |
| if (new_data != nullptr) { |
| cobject->value.as_external_typed_data.data = new_data; |
| cobject->value.as_external_typed_data.peer = new_data; |
| } |
| } |
| |
| // The typed data object always has to have the shranken length. |
| cobject->value.as_external_typed_data.length = new_length; |
| } |
| |
| void CObject::FreeIOBufferData(Dart_CObject* cobject) { |
| ASSERT(cobject->type == Dart_CObject_kExternalTypedData); |
| cobject->value.as_external_typed_data.callback( |
| NULL, cobject->value.as_external_typed_data.peer); |
| cobject->value.as_external_typed_data.data = NULL; |
| } |
| |
| CObject* CObject::IllegalArgumentError() { |
| CObjectArray* result = new CObjectArray(CObject::NewArray(1)); |
| result->SetAt(0, new CObjectInt32(CObject::NewInt32(kArgumentError))); |
| return result; |
| } |
| |
| CObject* CObject::FileClosedError() { |
| CObjectArray* result = new CObjectArray(CObject::NewArray(1)); |
| result->SetAt(0, new CObjectInt32(CObject::NewInt32(kFileClosedError))); |
| return result; |
| } |
| |
| CObject* CObject::NewOSError() { |
| OSError os_error; |
| return NewOSError(&os_error); |
| } |
| |
| CObject* CObject::NewOSError(OSError* os_error) { |
| CObject* error_message = |
| new CObjectString(CObject::NewString(os_error->message())); |
| CObjectArray* result = new CObjectArray(CObject::NewArray(3)); |
| result->SetAt(0, new CObjectInt32(CObject::NewInt32(kOSError))); |
| result->SetAt(1, new CObjectInt32(CObject::NewInt32(os_error->code()))); |
| result->SetAt(2, error_message); |
| return result; |
| } |
| |
| } // namespace bin |
| } // namespace dart |
