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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_TEST_INSPECTOR_TASKS_H_
#define V8_TEST_INSPECTOR_TASKS_H_
#include <vector>
#include "include/v8-context.h"
#include "include/v8-function.h"
#include "include/v8-inspector.h"
#include "include/v8-microtask-queue.h"
#include "include/v8-primitive.h"
#include "src/base/platform/semaphore.h"
#include "test/inspector/isolate-data.h"
#include "test/inspector/task-runner.h"
#include "test/inspector/utils.h"
namespace v8 {
namespace internal {
template <typename T>
void RunSyncTask(TaskRunner* task_runner, T callback) {
class SyncTask : public TaskRunner::Task {
public:
SyncTask(v8::base::Semaphore* ready_semaphore, T callback)
: ready_semaphore_(ready_semaphore), callback_(callback) {}
~SyncTask() override = default;
bool is_priority_task() final { return true; }
private:
void Run(InspectorIsolateData* data) override {
callback_(data);
if (ready_semaphore_) ready_semaphore_->Signal();
}
v8::base::Semaphore* ready_semaphore_;
T callback_;
};
v8::base::Semaphore ready_semaphore(0);
task_runner->Append(std::make_unique<SyncTask>(&ready_semaphore, callback));
ready_semaphore.Wait();
}
class SendMessageToBackendTask : public TaskRunner::Task {
public:
SendMessageToBackendTask(int session_id, const std::vector<uint16_t>& message)
: session_id_(session_id), message_(message) {}
bool is_priority_task() final { return true; }
private:
void Run(InspectorIsolateData* data) override {
v8_inspector::StringView message_view(message_.data(), message_.size());
data->SendMessage(session_id_, message_view);
}
int session_id_;
std::vector<uint16_t> message_;
};
inline void RunAsyncTask(TaskRunner* task_runner,
const v8_inspector::StringView& task_name,
std::unique_ptr<TaskRunner::Task> task) {
class AsyncTask : public TaskRunner::Task {
public:
explicit AsyncTask(std::unique_ptr<TaskRunner::Task> inner)
: inner_(std::move(inner)) {}
~AsyncTask() override = default;
AsyncTask(const AsyncTask&) = delete;
AsyncTask& operator=(const AsyncTask&) = delete;
bool is_priority_task() override { return inner_->is_priority_task(); }
void Run(InspectorIsolateData* data) override {
data->AsyncTaskStarted(inner_.get());
inner_->Run(data);
data->AsyncTaskFinished(inner_.get());
}
private:
std::unique_ptr<TaskRunner::Task> inner_;
};
task_runner->data()->AsyncTaskScheduled(task_name, task.get(), false);
task_runner->Append(std::make_unique<AsyncTask>(std::move(task)));
}
class ExecuteStringTask : public TaskRunner::Task {
public:
ExecuteStringTask(v8::Isolate* isolate, int context_group_id,
const std::vector<uint16_t>& expression,
v8::Local<v8::String> name,
v8::Local<v8::Integer> line_offset,
v8::Local<v8::Integer> column_offset,
v8::Local<v8::Boolean> is_module)
: expression_(expression),
name_(ToVector(isolate, name)),
line_offset_(line_offset.As<v8::Int32>()->Value()),
column_offset_(column_offset.As<v8::Int32>()->Value()),
is_module_(is_module->Value()),
context_group_id_(context_group_id) {}
ExecuteStringTask(const std::string& expression, int context_group_id)
: expression_utf8_(expression), context_group_id_(context_group_id) {}
~ExecuteStringTask() override = default;
ExecuteStringTask(const ExecuteStringTask&) = delete;
ExecuteStringTask& operator=(const ExecuteStringTask&) = delete;
bool is_priority_task() override { return false; }
void Run(InspectorIsolateData* data) override;
private:
std::vector<uint16_t> expression_;
std::string expression_utf8_;
std::vector<uint16_t> name_;
int32_t line_offset_ = 0;
int32_t column_offset_ = 0;
bool is_module_ = false;
int context_group_id_;
};
class SetTimeoutTask : public TaskRunner::Task {
public:
SetTimeoutTask(int context_group_id, v8::Isolate* isolate,
v8::Local<v8::Function> function)
: function_(isolate, function), context_group_id_(context_group_id) {}
~SetTimeoutTask() override = default;
bool is_priority_task() final { return false; }
private:
void Run(InspectorIsolateData* data) override {
v8::HandleScope handle_scope(data->isolate());
v8::Local<v8::Context> context = data->GetDefaultContext(context_group_id_);
v8::MicrotasksScope microtasks_scope(context,
v8::MicrotasksScope::kRunMicrotasks);
v8::Context::Scope context_scope(context);
v8::Local<v8::Function> function = function_.Get(data->isolate());
v8::MaybeLocal<v8::Value> result;
result = function->Call(context, context->Global(), 0, nullptr);
}
v8::Global<v8::Function> function_;
int context_group_id_;
};
class SetTimeoutExtension : public InspectorIsolateData::SetupGlobalTask {
public:
void Run(v8::Isolate* isolate,
v8::Local<v8::ObjectTemplate> global) override {
global->Set(
ToV8String(isolate, "setTimeout"),
v8::FunctionTemplate::New(isolate, &SetTimeoutExtension::SetTimeout));
}
private:
static void SetTimeout(const v8::FunctionCallbackInfo<v8::Value>& args) {
if (args.Length() != 2 || !args[1]->IsNumber() ||
(!args[0]->IsFunction() && !args[0]->IsString()) ||
args[1].As<v8::Number>()->Value() != 0.0) {
return;
}
v8::Isolate* isolate = args.GetIsolate();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
InspectorIsolateData* data = InspectorIsolateData::FromContext(context);
int context_group_id = data->GetContextGroupId(context);
const char* task_name = "setTimeout";
v8_inspector::StringView task_name_view(
reinterpret_cast<const uint8_t*>(task_name), strlen(task_name));
if (args[0]->IsFunction()) {
RunAsyncTask(data->task_runner(), task_name_view,
std::make_unique<SetTimeoutTask>(
context_group_id, isolate,
v8::Local<v8::Function>::Cast(args[0])));
} else {
RunAsyncTask(
data->task_runner(), task_name_view,
std::make_unique<ExecuteStringTask>(
isolate, context_group_id,
ToVector(isolate, args[0].As<v8::String>()),
v8::String::Empty(isolate), v8::Integer::New(isolate, 0),
v8::Integer::New(isolate, 0), v8::Boolean::New(isolate, false)));
}
}
};
} // namespace internal
} // namespace v8
#endif // V8_TEST_INSPECTOR_TASKS_H_
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