mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 20:51:50 +00:00
2e2d542969
As part of implementing hot-reload for isolate groups, we have to ensure reloads on a group are performed using the same state of incremental compiler. This means we cannot use a specific isolate's information (such as it's main port) for reloading purposes. Instead we use the unqiue isolate group id when communicating with the kernel service. Issue https://github.com/dart-lang/sdk/issues/36097 TEST=Existing test coverage, future test when hot-reload is fully implemented with isolate groups. Change-Id: Ifab39cd2ba689c08507dfab4091cd26951ed54e5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/185320 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>
1187 lines
41 KiB
C++
1187 lines
41 KiB
C++
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/kernel_isolate.h"
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#include "include/dart_native_api.h"
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#include "vm/compiler/jit/compiler.h"
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#include "vm/dart_api_impl.h"
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#include "vm/dart_entry.h"
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#include "vm/flags.h"
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#include "vm/isolate.h"
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#include "vm/lockers.h"
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#include "vm/message.h"
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#include "vm/message_handler.h"
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#include "vm/native_arguments.h"
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#include "vm/native_entry.h"
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#include "vm/native_message_handler.h"
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#include "vm/object.h"
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#include "vm/object_store.h"
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#include "vm/port.h"
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#include "vm/service.h"
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#include "vm/symbols.h"
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#include "vm/thread_pool.h"
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#include "vm/timeline.h"
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#if !defined(DART_PRECOMPILED_RUNTIME)
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namespace dart {
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#define Z (T->zone())
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DEFINE_FLAG(bool, trace_kernel, false, "Trace Kernel service requests.");
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DEFINE_FLAG(charp,
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kernel_multiroot_filepaths,
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NULL,
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"Comma-separated list of file paths that should be treated as roots"
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" by frontend compiler.");
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DEFINE_FLAG(charp,
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kernel_multiroot_scheme,
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NULL,
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"URI scheme that replaces filepaths prefixes specified"
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" by kernel_multiroot_filepaths option");
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// Tags used to indicate different requests to the dart frontend.
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//
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// Current tags include the following:
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// 0 - Perform normal compilation.
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// 1 - Update in-memory file system with in-memory sources (used by tests).
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// 2 - Accept last compilation result.
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// 3 - APP JIT snapshot training run for kernel_service.
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// 4 - Compile expressions in context (used by expression evaluation).
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// 5 - Generate dependencies used to create a dependencies file.
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// 6 - Triggers shutdown of the kernel isolate.
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// 7 - Detects the nullability of a script based on it's opt-in status.
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const int KernelIsolate::kCompileTag = 0;
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const int KernelIsolate::kUpdateSourcesTag = 1;
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const int KernelIsolate::kAcceptTag = 2;
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const int KernelIsolate::kTrainTag = 3;
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const int KernelIsolate::kCompileExpressionTag = 4;
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const int KernelIsolate::kListDependenciesTag = 5;
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const int KernelIsolate::kNotifyIsolateShutdown = 6;
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const int KernelIsolate::kDetectNullabilityTag = 7;
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const char* KernelIsolate::kName = DART_KERNEL_ISOLATE_NAME;
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Dart_IsolateGroupCreateCallback KernelIsolate::create_group_callback_ = NULL;
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Monitor* KernelIsolate::monitor_ = new Monitor();
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KernelIsolate::State KernelIsolate::state_ = KernelIsolate::kNotStarted;
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Isolate* KernelIsolate::isolate_ = NULL;
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Dart_Port KernelIsolate::kernel_port_ = ILLEGAL_PORT;
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class RunKernelTask : public ThreadPool::Task {
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public:
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virtual void Run() {
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ASSERT(Isolate::Current() == NULL);
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#ifdef SUPPORT_TIMELINE
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TimelineBeginEndScope tbes(Timeline::GetVMStream(), "KernelIsolateStartup");
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#endif // SUPPORT_TIMELINE
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char* error = NULL;
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Isolate* isolate = NULL;
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Dart_IsolateGroupCreateCallback create_group_callback =
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KernelIsolate::create_group_callback();
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ASSERT(create_group_callback != NULL);
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// Note: these flags must match those passed to the VM during
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// the app-jit training run (see //utils/kernel-service/BUILD.gn).
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Dart_IsolateFlags api_flags;
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Isolate::FlagsInitialize(&api_flags);
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api_flags.enable_asserts = false;
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api_flags.is_system_isolate = true;
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#if !defined(DART_PRECOMPILER)
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api_flags.use_field_guards = true;
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#endif
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#if !defined(DART_PRECOMPILER)
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api_flags.use_osr = true;
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#endif
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isolate = reinterpret_cast<Isolate*>(
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create_group_callback(KernelIsolate::kName, KernelIsolate::kName, NULL,
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NULL, &api_flags, NULL, &error));
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if (isolate == NULL) {
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": Isolate creation error: %s\n",
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error);
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}
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free(error);
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error = nullptr;
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KernelIsolate::SetKernelIsolate(NULL);
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KernelIsolate::InitializingFailed();
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return;
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}
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bool got_unwind;
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{
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ASSERT(Isolate::Current() == NULL);
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StartIsolateScope start_scope(isolate);
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got_unwind = RunMain(isolate);
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}
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KernelIsolate::FinishedInitializing();
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if (got_unwind) {
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ShutdownIsolate(reinterpret_cast<uword>(isolate));
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return;
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}
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// isolate_ was set as side effect of create callback.
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ASSERT(KernelIsolate::IsKernelIsolate(isolate));
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isolate->message_handler()->Run(Dart::thread_pool(), NULL, ShutdownIsolate,
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reinterpret_cast<uword>(isolate));
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}
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protected:
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static void ShutdownIsolate(uword parameter) {
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": ShutdownIsolate\n");
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}
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KernelIsolate::SetLoadPort(ILLEGAL_PORT);
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Dart_EnterIsolate(reinterpret_cast<Dart_Isolate>(parameter));
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{
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auto T = Thread::Current();
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TransitionNativeToVM transition(T);
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StackZone zone(T);
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HandleScope handle_scope(T);
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auto I = T->isolate();
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ASSERT(KernelIsolate::IsKernelIsolate(I));
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// Print the error if there is one. This may execute dart code to
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// print the exception object, so we need to use a StartIsolateScope.
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Error& error = Error::Handle(Z);
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error = T->sticky_error();
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if (!error.IsNull() && !error.IsUnwindError()) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": Error: %s\n",
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error.ToErrorCString());
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}
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error = I->sticky_error();
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if (!error.IsNull() && !error.IsUnwindError()) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": Error: %s\n",
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error.ToErrorCString());
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}
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}
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Dart_ShutdownIsolate();
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": Shutdown.\n");
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}
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KernelIsolate::FinishedExiting();
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}
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bool RunMain(Isolate* I) {
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Thread* T = Thread::Current();
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ASSERT(I == T->isolate());
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StackZone zone(T);
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HANDLESCOPE(T);
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// Invoke main which will return the port to which load requests are sent.
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const Library& root_library =
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Library::Handle(Z, I->group()->object_store()->root_library());
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if (root_library.IsNull()) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME
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": Embedder did not install a script.");
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// Kernel isolate is not supported by embedder.
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return false;
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}
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ASSERT(!root_library.IsNull());
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const String& entry_name = String::Handle(Z, String::New("main"));
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ASSERT(!entry_name.IsNull());
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const Function& entry = Function::Handle(
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Z, root_library.LookupFunctionAllowPrivate(entry_name));
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if (entry.IsNull()) {
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// Kernel isolate is not supported by embedder.
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME
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": Embedder did not provide a main function.");
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return false;
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}
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ASSERT(!entry.IsNull());
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const Object& result = Object::Handle(
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Z, DartEntry::InvokeFunction(entry, Object::empty_array()));
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ASSERT(!result.IsNull());
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if (result.IsError()) {
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// Kernel isolate did not initialize properly.
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if (FLAG_trace_kernel) {
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const Error& error = Error::Cast(result);
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME
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": Calling main resulted in an error: %s",
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error.ToErrorCString());
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}
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if (result.IsUnwindError()) {
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return true;
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}
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return false;
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}
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ASSERT(result.IsReceivePort());
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const ReceivePort& rp = ReceivePort::Cast(result);
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KernelIsolate::SetLoadPort(rp.Id());
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return false;
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}
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};
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void KernelIsolate::InitializeState() {
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// Grab the isolate create callback here to avoid race conditions with tests
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// that change this after Dart_Initialize returns.
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": InitializeState\n");
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}
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create_group_callback_ = Isolate::CreateGroupCallback();
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if (create_group_callback_ == NULL) {
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KernelIsolate::InitializingFailed();
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return;
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}
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}
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bool KernelIsolate::Start() {
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if (create_group_callback_ == nullptr) {
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME
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": Attempted to start kernel isolate without setting "
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"Dart_InitializeParams property 'start_kernel_isolate' "
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"to true\n");
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}
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return false;
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}
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bool start_task = false;
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{
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MonitorLocker ml(monitor_);
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if (state_ == kNotStarted) {
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": Start\n");
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}
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start_task = true;
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state_ = kStarting;
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ml.NotifyAll();
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}
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}
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bool task_started = true;
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if (start_task) {
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task_started = Dart::thread_pool()->Run<RunKernelTask>();
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}
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return task_started;
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}
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void KernelIsolate::Shutdown() {
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MonitorLocker ml(monitor_);
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while (state_ == kStarting) {
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ml.Wait();
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}
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if (state_ == kStopped || state_ == kNotStarted) {
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return;
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}
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ASSERT(state_ == kStarted);
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state_ = kStopping;
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ml.NotifyAll();
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Isolate::KillIfExists(isolate_, Isolate::kInternalKillMsg);
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while (state_ != kStopped) {
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ml.Wait();
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}
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}
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void KernelIsolate::InitCallback(Isolate* I) {
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Thread* T = Thread::Current();
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ASSERT(I == T->isolate());
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ASSERT(I != NULL);
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if (!NameEquals(I->name())) {
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// Not kernel isolate.
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return;
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}
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ASSERT(!Exists());
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if (FLAG_trace_kernel) {
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OS::PrintErr(DART_KERNEL_ISOLATE_NAME ": InitCallback for %s.\n",
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I->name());
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}
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SetKernelIsolate(I);
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}
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bool KernelIsolate::IsKernelIsolate(const Isolate* isolate) {
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MonitorLocker ml(monitor_);
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return isolate == isolate_;
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}
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bool KernelIsolate::IsRunning() {
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MonitorLocker ml(monitor_);
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return (kernel_port_ != ILLEGAL_PORT) && (isolate_ != NULL);
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}
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bool KernelIsolate::NameEquals(const char* name) {
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ASSERT(name != NULL);
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return (strcmp(name, DART_KERNEL_ISOLATE_NAME) == 0);
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}
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bool KernelIsolate::Exists() {
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MonitorLocker ml(monitor_);
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return isolate_ != NULL;
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}
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void KernelIsolate::SetKernelIsolate(Isolate* isolate) {
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MonitorLocker ml(monitor_);
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if (isolate != nullptr) {
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isolate->set_is_kernel_isolate(true);
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}
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isolate_ = isolate;
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ml.NotifyAll();
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}
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void KernelIsolate::SetLoadPort(Dart_Port port) {
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MonitorLocker ml(monitor_);
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kernel_port_ = port;
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ml.NotifyAll();
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}
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void KernelIsolate::FinishedExiting() {
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MonitorLocker ml(monitor_);
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ASSERT(state_ == kStarted || state_ == kStopping);
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state_ = kStopped;
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ml.NotifyAll();
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}
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void KernelIsolate::FinishedInitializing() {
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MonitorLocker ml(monitor_);
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ASSERT(state_ == kStarting);
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state_ = kStarted;
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ml.NotifyAll();
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}
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void KernelIsolate::InitializingFailed() {
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MonitorLocker ml(monitor_);
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ASSERT(state_ == kStarting);
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state_ = kStopped;
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ml.NotifyAll();
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}
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Dart_Port KernelIsolate::WaitForKernelPort() {
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VMTagScope tagScope(Thread::Current(), VMTag::kLoadWaitTagId);
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MonitorLocker ml(monitor_);
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while (state_ == kStarting && (kernel_port_ == ILLEGAL_PORT)) {
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ml.Wait();
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}
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return kernel_port_;
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}
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static Dart_CObject BuildFilesPairs(int source_files_count,
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Dart_SourceFile source_files[]) {
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Dart_CObject files;
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files.type = Dart_CObject_kArray;
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files.value.as_array.length = source_files_count * 2;
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// typedef Dart_CObject* Dart_CObjectPtr;
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Dart_CObject** fileNamePairs = new Dart_CObject*[source_files_count * 2];
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for (int i = 0; i < source_files_count; i++) {
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Dart_CObject* source_uri = new Dart_CObject();
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source_uri->type = Dart_CObject_kString;
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source_uri->value.as_string = const_cast<char*>(source_files[i].uri);
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fileNamePairs[i * 2] = source_uri;
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Dart_CObject* source_code = new Dart_CObject();
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if (source_files[i].source != NULL) {
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source_code->type = Dart_CObject_kTypedData;
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source_code->value.as_typed_data.type = Dart_TypedData_kUint8;
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source_code->value.as_typed_data.length = strlen(source_files[i].source);
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source_code->value.as_typed_data.values =
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reinterpret_cast<uint8_t*>(const_cast<char*>(source_files[i].source));
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} else {
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source_code->type = Dart_CObject_kNull;
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}
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fileNamePairs[(i * 2) + 1] = source_code;
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}
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files.value.as_array.values = fileNamePairs;
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return files;
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}
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static void ReleaseFilesPairs(const Dart_CObject& files) {
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for (intptr_t i = 0; i < files.value.as_array.length; i++) {
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delete files.value.as_array.values[i];
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}
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delete[] files.value.as_array.values;
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}
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static void PassThroughFinalizer(void* isolate_callback_data, void* peer) {}
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MallocGrowableArray<char*>* KernelIsolate::experimental_flags_ =
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new MallocGrowableArray<char*>();
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void KernelIsolate::AddExperimentalFlag(const char* value) {
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char* save_ptr; // Needed for strtok_r.
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char* temp = Utils::StrDup(value);
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char* token = strtok_r(temp, ",", &save_ptr);
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while (token != NULL) {
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experimental_flags_->Add(Utils::StrDup(token));
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token = strtok_r(NULL, ",", &save_ptr);
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}
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free(temp);
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}
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bool KernelIsolate::GetExperimentalFlag(ExperimentalFeature feature) {
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const char* value = GetExperimentalFeatureName(feature);
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for (const char* str : *experimental_flags_) {
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if (strcmp(str, value) == 0) {
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return true;
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} else if (strstr(str, "no-") == str && strcmp(str + 3, value) == 0) {
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return false;
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}
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}
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return GetExperimentalFeatureDefault(feature);
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}
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DEFINE_OPTION_HANDLER(KernelIsolate::AddExperimentalFlag,
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enable_experiment,
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"Comma separated list of experimental features.");
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class KernelCompilationRequest : public ValueObject {
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public:
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KernelCompilationRequest()
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: monitor_(),
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port_(Dart_NewNativePort("kernel-compilation-port",
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&HandleResponse,
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false)),
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next_(NULL),
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prev_(NULL) {
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ASSERT(port_ != ILLEGAL_PORT);
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RegisterRequest(this);
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result_.status = Dart_KernelCompilationStatus_Unknown;
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result_.error = NULL;
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result_.kernel = NULL;
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result_.kernel_size = 0;
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}
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~KernelCompilationRequest() {
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UnregisterRequest(this);
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Dart_CloseNativePort(port_);
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}
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intptr_t setDillData(Dart_CObject** dills_array,
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intptr_t dill_num,
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const uint8_t* buffer,
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intptr_t buffer_size) {
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if (buffer != nullptr) {
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dills_array[dill_num] = new Dart_CObject;
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dills_array[dill_num]->type = Dart_CObject_kExternalTypedData;
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dills_array[dill_num]->value.as_external_typed_data.type =
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Dart_TypedData_kUint8;
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dills_array[dill_num]->value.as_external_typed_data.length = buffer_size;
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dills_array[dill_num]->value.as_external_typed_data.data =
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const_cast<uint8_t*>(buffer);
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dills_array[dill_num]->value.as_external_typed_data.peer =
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const_cast<uint8_t*>(buffer);
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dills_array[dill_num]->value.as_external_typed_data.callback =
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PassThroughFinalizer;
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dill_num++;
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}
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return dill_num;
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}
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Dart_KernelCompilationResult SendAndWaitForResponse(
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Dart_Port kernel_port,
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const uint8_t* platform_kernel,
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intptr_t platform_kernel_size,
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const char* expression,
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const Array& definitions,
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const Array& type_definitions,
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char const* library_uri,
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char const* klass,
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bool is_static,
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const MallocGrowableArray<char*>* experimental_flags) {
|
|
Thread* thread = Thread::Current();
|
|
TransitionNativeToVM transition(thread);
|
|
Dart_CObject tag;
|
|
tag.type = Dart_CObject_kInt32;
|
|
tag.value.as_int32 = KernelIsolate::kCompileExpressionTag;
|
|
|
|
Dart_CObject send_port;
|
|
send_port.type = Dart_CObject_kSendPort;
|
|
send_port.value.as_send_port.id = port_;
|
|
send_port.value.as_send_port.origin_id = ILLEGAL_PORT;
|
|
|
|
Dart_CObject dart_platform_kernel;
|
|
if (platform_kernel != NULL) {
|
|
dart_platform_kernel.type = Dart_CObject_kExternalTypedData;
|
|
dart_platform_kernel.value.as_external_typed_data.type =
|
|
Dart_TypedData_kUint8;
|
|
dart_platform_kernel.value.as_external_typed_data.length =
|
|
platform_kernel_size;
|
|
dart_platform_kernel.value.as_external_typed_data.data =
|
|
const_cast<uint8_t*>(platform_kernel);
|
|
dart_platform_kernel.value.as_external_typed_data.peer =
|
|
const_cast<uint8_t*>(platform_kernel);
|
|
dart_platform_kernel.value.as_external_typed_data.callback =
|
|
PassThroughFinalizer;
|
|
} else {
|
|
// If NULL, the kernel service looks up the platform dill file
|
|
// next to the executable.
|
|
dart_platform_kernel.type = Dart_CObject_kNull;
|
|
}
|
|
|
|
Dart_CObject expression_object;
|
|
expression_object.type = Dart_CObject_kString;
|
|
expression_object.value.as_string = const_cast<char*>(expression);
|
|
|
|
Dart_CObject definitions_object;
|
|
intptr_t num_definitions = definitions.Length();
|
|
definitions_object.type = Dart_CObject_kArray;
|
|
definitions_object.value.as_array.length = num_definitions;
|
|
|
|
Dart_CObject** definitions_array = new Dart_CObject*[num_definitions];
|
|
for (intptr_t i = 0; i < num_definitions; ++i) {
|
|
definitions_array[i] = new Dart_CObject;
|
|
definitions_array[i]->type = Dart_CObject_kString;
|
|
definitions_array[i]->value.as_string = const_cast<char*>(
|
|
String::CheckedHandle(thread->zone(), definitions.At(i)).ToCString());
|
|
}
|
|
definitions_object.value.as_array.values = definitions_array;
|
|
|
|
Dart_CObject type_definitions_object;
|
|
intptr_t num_type_definitions = type_definitions.Length();
|
|
type_definitions_object.type = Dart_CObject_kArray;
|
|
type_definitions_object.value.as_array.length = num_type_definitions;
|
|
|
|
Dart_CObject** type_definitions_array =
|
|
new Dart_CObject*[num_type_definitions];
|
|
for (intptr_t i = 0; i < num_type_definitions; ++i) {
|
|
type_definitions_array[i] = new Dart_CObject;
|
|
type_definitions_array[i]->type = Dart_CObject_kString;
|
|
type_definitions_array[i]->value.as_string = const_cast<char*>(
|
|
String::CheckedHandle(thread->zone(), type_definitions.At(i))
|
|
.ToCString());
|
|
}
|
|
type_definitions_object.value.as_array.values = type_definitions_array;
|
|
|
|
Dart_CObject library_uri_object;
|
|
library_uri_object.type = Dart_CObject_kString;
|
|
library_uri_object.value.as_string = const_cast<char*>(library_uri);
|
|
|
|
Dart_CObject class_object;
|
|
if (klass != NULL) {
|
|
class_object.type = Dart_CObject_kString;
|
|
class_object.value.as_string = const_cast<char*>(klass);
|
|
} else {
|
|
class_object.type = Dart_CObject_kNull;
|
|
}
|
|
|
|
Dart_CObject is_static_object;
|
|
is_static_object.type = Dart_CObject_kBool;
|
|
is_static_object.value.as_bool = is_static;
|
|
|
|
auto isolate_group = thread->isolate_group();
|
|
auto source = isolate_group->source();
|
|
|
|
Dart_CObject isolate_id;
|
|
isolate_id.type = Dart_CObject_kInt64;
|
|
isolate_id.value.as_int64 = static_cast<int64_t>(isolate_group->id());
|
|
|
|
intptr_t num_dills = 0;
|
|
if (source->kernel_buffer != nullptr) {
|
|
num_dills++;
|
|
}
|
|
if (source->script_kernel_buffer != nullptr) {
|
|
num_dills++;
|
|
}
|
|
Array& loaded_blobs = Array::Handle();
|
|
if (source->loaded_blobs_ != nullptr) {
|
|
loaded_blobs = source->loaded_blobs_;
|
|
WeakProperty& weak_property = WeakProperty::Handle();
|
|
for (intptr_t i = 0; i < loaded_blobs.Length(); i++) {
|
|
weak_property ^= loaded_blobs.At(i);
|
|
if (weak_property.key() != ExternalTypedData::null()) {
|
|
num_dills++;
|
|
}
|
|
}
|
|
}
|
|
|
|
Dart_CObject dills_object;
|
|
dills_object.type = Dart_CObject_kArray;
|
|
dills_object.value.as_array.length = num_dills;
|
|
|
|
Dart_CObject** dills_array = new Dart_CObject*[num_dills];
|
|
intptr_t dill_num = 0;
|
|
dill_num = setDillData(dills_array, dill_num, source->kernel_buffer,
|
|
source->kernel_buffer_size);
|
|
dill_num = setDillData(dills_array, dill_num, source->script_kernel_buffer,
|
|
source->script_kernel_size);
|
|
if (!loaded_blobs.IsNull()) {
|
|
WeakProperty& weak_property = WeakProperty::Handle();
|
|
for (intptr_t i = 0; i < loaded_blobs.Length(); i++) {
|
|
weak_property ^= loaded_blobs.At(i);
|
|
if (weak_property.key() != ExternalTypedData::null()) {
|
|
ExternalTypedData& externalTypedData = ExternalTypedData::Handle(
|
|
thread->zone(), ExternalTypedData::RawCast(weak_property.key()));
|
|
NoSafepointScope no_safepoint(thread);
|
|
const uint8_t* data = const_cast<uint8_t*>(
|
|
reinterpret_cast<uint8_t*>(externalTypedData.DataAddr(0)));
|
|
dill_num = setDillData(dills_array, dill_num, data,
|
|
externalTypedData.Length());
|
|
}
|
|
}
|
|
}
|
|
dills_object.value.as_array.values = dills_array;
|
|
|
|
Dart_CObject num_blob_loads;
|
|
num_blob_loads.type = Dart_CObject_kInt64;
|
|
num_blob_loads.value.as_int64 = source->num_blob_loads_;
|
|
|
|
Dart_CObject enable_asserts;
|
|
enable_asserts.type = Dart_CObject_kBool;
|
|
enable_asserts.value.as_bool = isolate_group->asserts();
|
|
|
|
intptr_t num_experimental_flags = experimental_flags->length();
|
|
Dart_CObject** experimental_flags_array =
|
|
new Dart_CObject*[num_experimental_flags];
|
|
for (intptr_t i = 0; i < num_experimental_flags; ++i) {
|
|
experimental_flags_array[i] = new Dart_CObject;
|
|
experimental_flags_array[i]->type = Dart_CObject_kString;
|
|
experimental_flags_array[i]->value.as_string = (*experimental_flags)[i];
|
|
}
|
|
Dart_CObject experimental_flags_object;
|
|
experimental_flags_object.type = Dart_CObject_kArray;
|
|
experimental_flags_object.value.as_array.values = experimental_flags_array;
|
|
experimental_flags_object.value.as_array.length = num_experimental_flags;
|
|
|
|
Dart_CObject message;
|
|
message.type = Dart_CObject_kArray;
|
|
Dart_CObject* message_arr[] = {&tag,
|
|
&send_port,
|
|
&isolate_id,
|
|
&dart_platform_kernel,
|
|
&expression_object,
|
|
&definitions_object,
|
|
&type_definitions_object,
|
|
&library_uri_object,
|
|
&class_object,
|
|
&is_static_object,
|
|
&dills_object,
|
|
&num_blob_loads,
|
|
&enable_asserts,
|
|
&experimental_flags_object};
|
|
message.value.as_array.values = message_arr;
|
|
message.value.as_array.length = ARRAY_SIZE(message_arr);
|
|
|
|
{
|
|
TransitionVMToNative transition(thread);
|
|
|
|
// Send the message.
|
|
Dart_PostCObject(kernel_port, &message);
|
|
|
|
// Wait for reply to arrive.
|
|
VMTagScope tagScope(thread, VMTag::kLoadWaitTagId);
|
|
MonitorLocker ml(&monitor_);
|
|
while (result_.status == Dart_KernelCompilationStatus_Unknown) {
|
|
ml.Wait();
|
|
}
|
|
}
|
|
|
|
for (intptr_t i = 0; i < num_definitions; ++i) {
|
|
delete definitions_array[i];
|
|
}
|
|
delete[] definitions_array;
|
|
|
|
for (intptr_t i = 0; i < num_type_definitions; ++i) {
|
|
delete type_definitions_array[i];
|
|
}
|
|
delete[] type_definitions_array;
|
|
|
|
for (intptr_t i = 0; i < num_dills; ++i) {
|
|
delete dills_array[i];
|
|
}
|
|
delete[] dills_array;
|
|
|
|
for (intptr_t i = 0; i < num_experimental_flags; ++i) {
|
|
delete experimental_flags_array[i];
|
|
}
|
|
delete[] experimental_flags_array;
|
|
|
|
return result_;
|
|
}
|
|
|
|
Dart_KernelCompilationResult SendAndWaitForResponse(
|
|
int request_tag,
|
|
Dart_Port kernel_port,
|
|
const char* script_uri,
|
|
const uint8_t* platform_kernel,
|
|
intptr_t platform_kernel_size,
|
|
int source_files_count,
|
|
Dart_SourceFile source_files[],
|
|
bool incremental_compile,
|
|
bool snapshot_compile,
|
|
const char* package_config,
|
|
const char* multiroot_filepaths,
|
|
const char* multiroot_scheme,
|
|
const MallocGrowableArray<char*>* experimental_flags,
|
|
const char* original_working_directory,
|
|
Dart_KernelCompilationVerbosityLevel verbosity) {
|
|
// Build the message for the Kernel isolate.
|
|
// tag is used to specify which operation the frontend should perform.
|
|
Dart_CObject tag;
|
|
tag.type = Dart_CObject_kInt32;
|
|
tag.value.as_int32 = request_tag;
|
|
|
|
Dart_CObject send_port;
|
|
send_port.type = Dart_CObject_kSendPort;
|
|
send_port.value.as_send_port.id = port_;
|
|
send_port.value.as_send_port.origin_id = ILLEGAL_PORT;
|
|
|
|
Dart_CObject uri;
|
|
if (script_uri != NULL) {
|
|
uri.type = Dart_CObject_kString;
|
|
uri.value.as_string = const_cast<char*>(script_uri);
|
|
} else {
|
|
uri.type = Dart_CObject_kNull;
|
|
}
|
|
|
|
Dart_CObject dart_platform_kernel;
|
|
if (platform_kernel != NULL) {
|
|
dart_platform_kernel.type = Dart_CObject_kExternalTypedData;
|
|
dart_platform_kernel.value.as_external_typed_data.type =
|
|
Dart_TypedData_kUint8;
|
|
dart_platform_kernel.value.as_external_typed_data.length =
|
|
platform_kernel_size;
|
|
dart_platform_kernel.value.as_external_typed_data.data =
|
|
const_cast<uint8_t*>(platform_kernel);
|
|
dart_platform_kernel.value.as_external_typed_data.peer =
|
|
const_cast<uint8_t*>(platform_kernel);
|
|
dart_platform_kernel.value.as_external_typed_data.callback =
|
|
PassThroughFinalizer;
|
|
} else {
|
|
// If NULL, the kernel service looks up the platform dill file
|
|
// next to the executable.
|
|
dart_platform_kernel.type = Dart_CObject_kNull;
|
|
}
|
|
|
|
Dart_CObject dart_incremental;
|
|
dart_incremental.type = Dart_CObject_kBool;
|
|
dart_incremental.value.as_bool = incremental_compile;
|
|
|
|
Dart_CObject dart_snapshot;
|
|
dart_snapshot.type = Dart_CObject_kBool;
|
|
dart_snapshot.value.as_bool = snapshot_compile;
|
|
|
|
// TODO(aam): Assert that isolate exists once we move CompileAndReadScript
|
|
// compilation logic out of CreateIsolateAndSetupHelper and into
|
|
// IsolateSetupHelper in main.cc.
|
|
auto thread = Thread::Current();
|
|
auto isolate_group = thread != nullptr ? thread->isolate_group() : nullptr;
|
|
|
|
if (incremental_compile) {
|
|
ASSERT(isolate_group != nullptr);
|
|
}
|
|
Dart_CObject isolate_id;
|
|
isolate_id.type = Dart_CObject_kInt64;
|
|
isolate_id.value.as_int64 = isolate_group != nullptr
|
|
? static_cast<int64_t>(isolate_group->id())
|
|
: 0;
|
|
|
|
Dart_CObject message;
|
|
message.type = Dart_CObject_kArray;
|
|
|
|
Dart_CObject files = BuildFilesPairs(source_files_count, source_files);
|
|
|
|
Dart_CObject enable_asserts;
|
|
enable_asserts.type = Dart_CObject_kBool;
|
|
enable_asserts.value.as_bool = isolate_group != nullptr
|
|
? isolate_group->asserts()
|
|
: FLAG_enable_asserts;
|
|
|
|
Dart_CObject null_safety;
|
|
null_safety.type = Dart_CObject_kInt32;
|
|
null_safety.value.as_int32 =
|
|
(isolate_group != nullptr)
|
|
? (isolate_group->null_safety() ? kNullSafetyOptionStrong
|
|
: kNullSafetyOptionWeak)
|
|
: FLAG_sound_null_safety;
|
|
|
|
intptr_t num_experimental_flags = experimental_flags->length();
|
|
Dart_CObject** experimental_flags_array =
|
|
new Dart_CObject*[num_experimental_flags];
|
|
for (intptr_t i = 0; i < num_experimental_flags; ++i) {
|
|
experimental_flags_array[i] = new Dart_CObject;
|
|
experimental_flags_array[i]->type = Dart_CObject_kString;
|
|
experimental_flags_array[i]->value.as_string = (*experimental_flags)[i];
|
|
}
|
|
Dart_CObject experimental_flags_object;
|
|
experimental_flags_object.type = Dart_CObject_kArray;
|
|
experimental_flags_object.value.as_array.values = experimental_flags_array;
|
|
experimental_flags_object.value.as_array.length = num_experimental_flags;
|
|
|
|
Dart_CObject package_config_uri;
|
|
if (package_config != NULL) {
|
|
package_config_uri.type = Dart_CObject_kString;
|
|
package_config_uri.value.as_string = const_cast<char*>(package_config);
|
|
} else {
|
|
package_config_uri.type = Dart_CObject_kNull;
|
|
}
|
|
|
|
Dart_CObject multiroot_filepaths_object;
|
|
{
|
|
const char* filepaths = multiroot_filepaths != NULL
|
|
? multiroot_filepaths
|
|
: FLAG_kernel_multiroot_filepaths;
|
|
if (filepaths != NULL) {
|
|
multiroot_filepaths_object.type = Dart_CObject_kString;
|
|
multiroot_filepaths_object.value.as_string =
|
|
const_cast<char*>(filepaths);
|
|
} else {
|
|
multiroot_filepaths_object.type = Dart_CObject_kNull;
|
|
}
|
|
}
|
|
|
|
Dart_CObject multiroot_scheme_object;
|
|
{
|
|
const char* scheme = multiroot_scheme != NULL
|
|
? multiroot_scheme
|
|
: FLAG_kernel_multiroot_scheme;
|
|
if (scheme != NULL) {
|
|
multiroot_scheme_object.type = Dart_CObject_kString;
|
|
multiroot_scheme_object.value.as_string = const_cast<char*>(scheme);
|
|
} else {
|
|
multiroot_scheme_object.type = Dart_CObject_kNull;
|
|
}
|
|
}
|
|
|
|
Dart_CObject original_working_directory_object;
|
|
{
|
|
if (original_working_directory != NULL) {
|
|
original_working_directory_object.type = Dart_CObject_kString;
|
|
original_working_directory_object.value.as_string =
|
|
const_cast<char*>(original_working_directory);
|
|
} else {
|
|
original_working_directory_object.type = Dart_CObject_kNull;
|
|
}
|
|
}
|
|
|
|
Dart_CObject verbosity_str;
|
|
verbosity_str.type = Dart_CObject_kString;
|
|
verbosity_str.value.as_string =
|
|
const_cast<char*>(KernelCompilationVerbosityLevelToString(verbosity));
|
|
|
|
Dart_CObject* message_arr[] = {&tag,
|
|
&send_port,
|
|
&uri,
|
|
&dart_platform_kernel,
|
|
&dart_incremental,
|
|
&dart_snapshot,
|
|
&null_safety,
|
|
&isolate_id,
|
|
&files,
|
|
&enable_asserts,
|
|
&experimental_flags_object,
|
|
&package_config_uri,
|
|
&multiroot_filepaths_object,
|
|
&multiroot_scheme_object,
|
|
&original_working_directory_object,
|
|
&verbosity_str};
|
|
message.value.as_array.values = message_arr;
|
|
message.value.as_array.length = ARRAY_SIZE(message_arr);
|
|
// Send the message.
|
|
Dart_PostCObject(kernel_port, &message);
|
|
|
|
ReleaseFilesPairs(files);
|
|
|
|
// Wait for reply to arrive.
|
|
VMTagScope tagScope(Thread::Current(), VMTag::kLoadWaitTagId);
|
|
MonitorLocker ml(&monitor_);
|
|
while (result_.status == Dart_KernelCompilationStatus_Unknown) {
|
|
ml.Wait();
|
|
}
|
|
|
|
for (intptr_t i = 0; i < num_experimental_flags; ++i) {
|
|
delete experimental_flags_array[i];
|
|
}
|
|
delete[] experimental_flags_array;
|
|
|
|
return result_;
|
|
}
|
|
|
|
private:
|
|
void LoadKernelFromResponse(Dart_CObject* response) {
|
|
ASSERT((response->type == Dart_CObject_kTypedData) ||
|
|
(response->type == Dart_CObject_kBool) ||
|
|
(response->type == Dart_CObject_kNull));
|
|
|
|
if (response->type == Dart_CObject_kNull) {
|
|
return;
|
|
}
|
|
if (response->type == Dart_CObject_kBool) {
|
|
result_.null_safety = response->value.as_bool;
|
|
return;
|
|
}
|
|
|
|
ASSERT(response->value.as_typed_data.type == Dart_TypedData_kUint8);
|
|
result_.kernel_size = response->value.as_typed_data.length;
|
|
result_.kernel = static_cast<uint8_t*>(malloc(result_.kernel_size));
|
|
memmove(result_.kernel, response->value.as_typed_data.values,
|
|
result_.kernel_size);
|
|
}
|
|
|
|
// Possible responses from the Kernel isolate:
|
|
//
|
|
// [Ok, Uint8List KernelBinary]
|
|
// [Error, String error, Uint8List KernelBinary]
|
|
// [Crash, String error]
|
|
//
|
|
void HandleResponseImpl(Dart_CObject* message) {
|
|
ASSERT(message->type == Dart_CObject_kArray);
|
|
ASSERT(message->value.as_array.length >= 1);
|
|
|
|
Dart_CObject** response = message->value.as_array.values;
|
|
|
|
MonitorLocker ml(&monitor_);
|
|
|
|
ASSERT(response[0]->type == Dart_CObject_kInt32);
|
|
result_.status = static_cast<Dart_KernelCompilationStatus>(
|
|
message->value.as_array.values[0]->value.as_int32);
|
|
|
|
if (result_.status == Dart_KernelCompilationStatus_Ok) {
|
|
LoadKernelFromResponse(response[1]);
|
|
} else {
|
|
if (result_.status == Dart_KernelCompilationStatus_Error) {
|
|
LoadKernelFromResponse(response[2]);
|
|
}
|
|
// This is an error.
|
|
ASSERT(response[1]->type == Dart_CObject_kString);
|
|
result_.error = Utils::StrDup(response[1]->value.as_string);
|
|
}
|
|
ml.Notify();
|
|
}
|
|
|
|
static void HandleResponse(Dart_Port port, Dart_CObject* message) {
|
|
MonitorLocker locker(requests_monitor_);
|
|
KernelCompilationRequest* rq = FindRequestLocked(port);
|
|
if (rq == NULL) {
|
|
return;
|
|
}
|
|
rq->HandleResponseImpl(message);
|
|
}
|
|
|
|
static void RegisterRequest(KernelCompilationRequest* rq) {
|
|
MonitorLocker locker(requests_monitor_);
|
|
rq->next_ = requests_;
|
|
if (requests_ != NULL) {
|
|
requests_->prev_ = rq;
|
|
}
|
|
requests_ = rq;
|
|
}
|
|
|
|
static void UnregisterRequest(KernelCompilationRequest* rq) {
|
|
MonitorLocker locker(requests_monitor_);
|
|
if (rq->next_ != NULL) {
|
|
rq->next_->prev_ = rq->prev_;
|
|
}
|
|
if (rq->prev_ != NULL) {
|
|
rq->prev_->next_ = rq->next_;
|
|
} else {
|
|
requests_ = rq->next_;
|
|
}
|
|
}
|
|
|
|
// Note: Caller must hold requests_monitor_.
|
|
static KernelCompilationRequest* FindRequestLocked(Dart_Port port) {
|
|
for (KernelCompilationRequest* rq = requests_; rq != NULL; rq = rq->next_) {
|
|
if (rq->port_ == port) {
|
|
return rq;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static const char* KernelCompilationVerbosityLevelToString(
|
|
Dart_KernelCompilationVerbosityLevel verbosity) {
|
|
switch (verbosity) {
|
|
case Dart_KernelCompilationVerbosityLevel_Error:
|
|
return "error";
|
|
case Dart_KernelCompilationVerbosityLevel_Warning:
|
|
return "warning";
|
|
case Dart_KernelCompilationVerbosityLevel_Info:
|
|
return "info";
|
|
case Dart_KernelCompilationVerbosityLevel_All:
|
|
return "all";
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
}
|
|
|
|
// This monitor must be held whenever linked list of requests is accessed.
|
|
static Monitor* requests_monitor_;
|
|
|
|
// Linked list of all active requests. Used to find a request by port number.
|
|
// Guarded by requests_monitor_ lock.
|
|
static KernelCompilationRequest* requests_;
|
|
|
|
Monitor monitor_;
|
|
Dart_Port port_;
|
|
|
|
// Linked list of active requests. Guarded by requests_monitor_ lock.
|
|
KernelCompilationRequest* next_;
|
|
KernelCompilationRequest* prev_;
|
|
|
|
Dart_KernelCompilationResult result_ = {};
|
|
};
|
|
|
|
Monitor* KernelCompilationRequest::requests_monitor_ = new Monitor();
|
|
KernelCompilationRequest* KernelCompilationRequest::requests_ = NULL;
|
|
|
|
Dart_KernelCompilationResult KernelIsolate::CompileToKernel(
|
|
const char* script_uri,
|
|
const uint8_t* platform_kernel,
|
|
intptr_t platform_kernel_size,
|
|
int source_file_count,
|
|
Dart_SourceFile source_files[],
|
|
bool incremental_compile,
|
|
bool snapshot_compile,
|
|
const char* package_config,
|
|
const char* multiroot_filepaths,
|
|
const char* multiroot_scheme,
|
|
Dart_KernelCompilationVerbosityLevel verbosity) {
|
|
// Start the kernel Isolate if it is not already running.
|
|
if (!Start()) {
|
|
Dart_KernelCompilationResult result = {};
|
|
result.status = Dart_KernelCompilationStatus_Unknown;
|
|
result.error = Utils::StrDup("Error while starting Kernel isolate task");
|
|
return result;
|
|
}
|
|
|
|
// This must be the main script to be loaded. Wait for Kernel isolate
|
|
// to finish initialization.
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
Dart_KernelCompilationResult result = {};
|
|
result.status = Dart_KernelCompilationStatus_Unknown;
|
|
result.error = Utils::StrDup("Error while initializing Kernel isolate");
|
|
return result;
|
|
}
|
|
|
|
KernelCompilationRequest request;
|
|
return request.SendAndWaitForResponse(
|
|
kCompileTag, kernel_port, script_uri, platform_kernel,
|
|
platform_kernel_size, source_file_count, source_files,
|
|
incremental_compile, snapshot_compile, package_config,
|
|
multiroot_filepaths, multiroot_scheme, experimental_flags_, NULL,
|
|
verbosity);
|
|
}
|
|
|
|
bool KernelIsolate::DetectNullSafety(const char* script_uri,
|
|
const char* package_config,
|
|
const char* original_working_directory) {
|
|
// Start the kernel Isolate if it is not already running.
|
|
if (!Start()) {
|
|
return false;
|
|
}
|
|
// Wait for Kernel isolate to finish initialization.
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
return false;
|
|
}
|
|
KernelCompilationRequest request;
|
|
Dart_KernelCompilationResult result = request.SendAndWaitForResponse(
|
|
kDetectNullabilityTag, kernel_port, script_uri, nullptr, -1, 0, nullptr,
|
|
false, false, package_config, nullptr, nullptr, experimental_flags_,
|
|
original_working_directory, Dart_KernelCompilationVerbosityLevel_Error);
|
|
return result.null_safety;
|
|
}
|
|
|
|
Dart_KernelCompilationResult KernelIsolate::ListDependencies() {
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
Dart_KernelCompilationResult result = {};
|
|
result.status = Dart_KernelCompilationStatus_Unknown;
|
|
result.error = Utils::StrDup("Error while initializing Kernel isolate");
|
|
return result;
|
|
}
|
|
|
|
KernelCompilationRequest request;
|
|
return request.SendAndWaitForResponse(
|
|
kListDependenciesTag, kernel_port, NULL, NULL, 0, 0, NULL, false, false,
|
|
NULL, NULL, NULL, experimental_flags_, NULL,
|
|
Dart_KernelCompilationVerbosityLevel_Error);
|
|
}
|
|
|
|
Dart_KernelCompilationResult KernelIsolate::AcceptCompilation() {
|
|
// This must be the main script to be loaded. Wait for Kernel isolate
|
|
// to finish initialization.
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
Dart_KernelCompilationResult result = {};
|
|
result.status = Dart_KernelCompilationStatus_Unknown;
|
|
result.error = Utils::StrDup("Error while initializing Kernel isolate");
|
|
return result;
|
|
}
|
|
|
|
KernelCompilationRequest request;
|
|
return request.SendAndWaitForResponse(
|
|
kAcceptTag, kernel_port, NULL, NULL, 0, 0, NULL, true, false, NULL, NULL,
|
|
NULL, experimental_flags_, NULL,
|
|
Dart_KernelCompilationVerbosityLevel_Error);
|
|
}
|
|
|
|
Dart_KernelCompilationResult KernelIsolate::CompileExpressionToKernel(
|
|
const uint8_t* platform_kernel,
|
|
intptr_t platform_kernel_size,
|
|
const char* expression,
|
|
const Array& definitions,
|
|
const Array& type_definitions,
|
|
const char* library_url,
|
|
const char* klass,
|
|
bool is_static) {
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
Dart_KernelCompilationResult result = {};
|
|
result.status = Dart_KernelCompilationStatus_Unknown;
|
|
result.error = Utils::StrDup("Error while initializing Kernel isolate");
|
|
return result;
|
|
}
|
|
|
|
TransitionVMToNative transition(Thread::Current());
|
|
KernelCompilationRequest request;
|
|
ASSERT(is_static || (klass != nullptr));
|
|
return request.SendAndWaitForResponse(
|
|
kernel_port, platform_kernel, platform_kernel_size, expression,
|
|
definitions, type_definitions, library_url, klass, is_static,
|
|
experimental_flags_);
|
|
}
|
|
|
|
Dart_KernelCompilationResult KernelIsolate::UpdateInMemorySources(
|
|
int source_files_count,
|
|
Dart_SourceFile source_files[]) {
|
|
// This must be the main script to be loaded. Wait for Kernel isolate
|
|
// to finish initialization.
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
Dart_KernelCompilationResult result = {};
|
|
result.status = Dart_KernelCompilationStatus_Unknown;
|
|
result.error = Utils::StrDup("Error while initializing Kernel isolate");
|
|
return result;
|
|
}
|
|
|
|
KernelCompilationRequest request;
|
|
return request.SendAndWaitForResponse(
|
|
kUpdateSourcesTag, kernel_port, NULL, NULL, 0, source_files_count,
|
|
source_files, true, false, NULL, NULL, NULL, experimental_flags_, NULL,
|
|
Dart_KernelCompilationVerbosityLevel_Error);
|
|
}
|
|
|
|
void KernelIsolate::NotifyAboutIsolateGroupShutdown(
|
|
const IsolateGroup* isolate_group) {
|
|
if (!KernelIsolate::IsRunning()) {
|
|
return;
|
|
}
|
|
Dart_Port kernel_port = WaitForKernelPort();
|
|
if (kernel_port == ILLEGAL_PORT) {
|
|
return;
|
|
}
|
|
|
|
Dart_CObject tag;
|
|
tag.type = Dart_CObject_kInt32;
|
|
tag.value.as_int32 = KernelIsolate::kNotifyIsolateShutdown;
|
|
|
|
Dart_CObject isolate_id;
|
|
isolate_id.type = Dart_CObject_kInt64;
|
|
isolate_id.value.as_int64 = static_cast<int64_t>(isolate_group->id());
|
|
|
|
Dart_CObject message;
|
|
message.type = Dart_CObject_kArray;
|
|
Dart_CObject* message_arr[] = {&tag, &isolate_id};
|
|
message.value.as_array.values = message_arr;
|
|
message.value.as_array.length = ARRAY_SIZE(message_arr);
|
|
// Send the message.
|
|
Dart_PostCObject(kernel_port, &message);
|
|
}
|
|
|
|
} // namespace dart
|
|
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|