1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
// 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.
#include "test/inspector/tasks.h"
#include <vector>
#include "include/v8-isolate.h"
#include "include/v8-script.h"
#include "test/inspector/isolate-data.h"
#include "test/inspector/utils.h"
namespace v8 {
namespace internal {
void RunSyncTask(TaskRunner* task_runner,
std::function<void(InspectorIsolateData*)> callback) {
class SyncTask : public TaskRunner::Task {
public:
SyncTask(v8::base::Semaphore* ready_semaphore,
std::function<void(InspectorIsolateData*)> 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_;
std::function<void(InspectorIsolateData*)> callback_;
};
v8::base::Semaphore ready_semaphore(0);
task_runner->Append(std::make_unique<SyncTask>(&ready_semaphore, callback));
ready_semaphore.Wait();
}
void RunSimpleAsyncTask(TaskRunner* task_runner,
std::function<void(InspectorIsolateData* data)> task,
v8::Local<v8::Function> callback) {
class DispatchResponseTask : public TaskRunner::Task {
public:
explicit DispatchResponseTask(v8::Local<v8::Function> callback)
: context_(callback->GetIsolate(),
callback->GetIsolate()->GetCurrentContext()),
client_callback_(callback->GetIsolate(), callback) {}
~DispatchResponseTask() override = default;
private:
bool is_priority_task() final { return true; }
void Run(InspectorIsolateData* data) override {
v8::HandleScope handle_scope(data->isolate());
v8::Local<v8::Context> context = context_.Get(data->isolate());
v8::MicrotasksScope microtasks_scope(context,
v8::MicrotasksScope::kRunMicrotasks);
v8::Context::Scope context_scope(context);
USE(client_callback_.Get(data->isolate())
->Call(context, context->Global(), 0, nullptr));
}
v8::Global<v8::Context> context_;
v8::Global<v8::Function> client_callback_;
};
using TaskCallback = std::function<void(InspectorIsolateData * data)>;
class TaskWrapper : public TaskRunner::Task {
public:
TaskWrapper(TaskCallback task, TaskRunner* client_task_runner,
std::unique_ptr<TaskRunner::Task> response_task)
: task_(std::move(task)),
client_task_runner_(client_task_runner),
response_task_(std::move(response_task)) {}
~TaskWrapper() override = default;
private:
bool is_priority_task() final { return true; }
void Run(InspectorIsolateData* data) override {
task_(data);
client_task_runner_->Append(std::move(response_task_));
}
TaskCallback task_;
TaskRunner* client_task_runner_;
std::unique_ptr<TaskRunner::Task> response_task_;
};
v8::Local<v8::Context> context = callback->GetIsolate()->GetCurrentContext();
TaskRunner* response_task_runner =
InspectorIsolateData::FromContext(context)->task_runner();
auto response_task = std::make_unique<DispatchResponseTask>(callback);
task_runner->Append(std::make_unique<TaskWrapper>(
std::move(task), response_task_runner, std::move(response_task)));
}
void ExecuteStringTask::Run(InspectorIsolateData* data) {
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::ScriptOrigin origin(data->isolate(), ToV8String(data->isolate(), name_),
line_offset_, column_offset_,
/* resource_is_shared_cross_origin */ false,
/* script_id */ -1,
/* source_map_url */ v8::Local<v8::Value>(),
/* resource_is_opaque */ false,
/* is_wasm */ false, is_module_);
v8::Local<v8::String> source;
if (expression_.size() != 0)
source = ToV8String(data->isolate(), expression_);
else
source = ToV8String(data->isolate(), expression_utf8_);
v8::ScriptCompiler::Source scriptSource(source, origin);
v8::Isolate::SafeForTerminationScope allowTermination(data->isolate());
if (!is_module_) {
v8::Local<v8::Script> script;
if (!v8::ScriptCompiler::Compile(context, &scriptSource).ToLocal(&script))
return;
v8::MaybeLocal<v8::Value> result;
result = script->Run(context);
} else {
data->RegisterModule(context, name_, &scriptSource);
}
}
} // namespace internal
} // namespace v8
|
