blob: 9ef41d374a0625296ab82a5e02b995ffc9383274 (
plain)
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
|
// Copyright 2013 The Chromium 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 "gin/public/isolate_holder.h"
#include <stdlib.h>
#include <string.h>
#include "base/logging.h"
#include "base/message_loop/message_loop.h"
#include "base/sys_info.h"
#include "gin/debug_impl.h"
#include "gin/function_template.h"
#include "gin/per_isolate_data.h"
#include "gin/run_microtasks_observer.h"
#include "gin/v8_initializer.h"
namespace gin {
namespace {
v8::ArrayBuffer::Allocator* g_array_buffer_allocator = nullptr;
} // namespace
IsolateHolder::IsolateHolder() {
v8::ArrayBuffer::Allocator* allocator = g_array_buffer_allocator;
CHECK(allocator) << "You need to invoke gin::IsolateHolder::Initialize first";
v8::Isolate::CreateParams params;
params.entry_hook = DebugImpl::GetFunctionEntryHook();
params.code_event_handler = DebugImpl::GetJitCodeEventHandler();
params.constraints.ConfigureDefaults(base::SysInfo::AmountOfPhysicalMemory(),
base::SysInfo::AmountOfVirtualMemory());
isolate_ = v8::Isolate::New(params);
isolate_data_.reset(new PerIsolateData(isolate_, allocator));
#if defined(OS_WIN)
{
void* code_range;
size_t size;
isolate_->GetCodeRange(&code_range, &size);
Debug::CodeRangeCreatedCallback callback =
DebugImpl::GetCodeRangeCreatedCallback();
if (code_range && size && callback)
callback(code_range, size);
}
#endif
}
IsolateHolder::~IsolateHolder() {
if (task_observer_.get())
base::MessageLoop::current()->RemoveTaskObserver(task_observer_.get());
#if defined(OS_WIN)
{
void* code_range;
size_t size;
isolate_->GetCodeRange(&code_range, &size);
Debug::CodeRangeDeletedCallback callback =
DebugImpl::GetCodeRangeDeletedCallback();
if (code_range && callback)
callback(code_range);
}
#endif
isolate_data_.reset();
isolate_->Dispose();
isolate_ = NULL;
}
// static
void IsolateHolder::Initialize(ScriptMode mode,
v8::ArrayBuffer::Allocator* allocator) {
CHECK(allocator);
gin::V8Initializer::Initialize(mode, allocator);
g_array_buffer_allocator = allocator;
}
void IsolateHolder::AddRunMicrotasksObserver() {
DCHECK(!task_observer_.get());
task_observer_.reset(new RunMicrotasksObserver(isolate_));;
base::MessageLoop::current()->AddTaskObserver(task_observer_.get());
}
void IsolateHolder::RemoveRunMicrotasksObserver() {
DCHECK(task_observer_.get());
base::MessageLoop::current()->RemoveTaskObserver(task_observer_.get());
task_observer_.reset();
}
} // namespace gin
|