зеркало из https://github.com/mozilla/gecko-dev.git
64 строки
1.6 KiB
C++
64 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "WeakPointer.h"
|
|
|
|
#include "mozilla/dom/ScriptSettings.h"
|
|
#include "mozilla/StaticMutex.h"
|
|
#include "jsapi.h"
|
|
|
|
#include <unordered_map>
|
|
|
|
namespace mozilla {
|
|
namespace recordreplay {
|
|
|
|
typedef std::unordered_map<const void*, UniquePtr<JS::PersistentRootedObject>> WeakPointerRootMap;
|
|
static WeakPointerRootMap* gWeakPointerRootMap;
|
|
|
|
static StaticMutexNotRecorded gWeakPointerMutex;
|
|
|
|
static UniquePtr<JS::PersistentRootedObject>
|
|
NewRoot(JSObject* aJSObj)
|
|
{
|
|
MOZ_RELEASE_ASSERT(aJSObj);
|
|
JSContext* cx = dom::danger::GetJSContext();
|
|
UniquePtr<JS::PersistentRootedObject> root = MakeUnique<JS::PersistentRootedObject>(cx);
|
|
*root = aJSObj;
|
|
return root;
|
|
}
|
|
|
|
extern "C" {
|
|
|
|
MOZ_EXPORT void
|
|
RecordReplayInterface_SetWeakPointerJSRoot(const void* aPtr, JSObject* aJSObj)
|
|
{
|
|
MOZ_RELEASE_ASSERT(IsReplaying());
|
|
|
|
StaticMutexAutoLock lock(gWeakPointerMutex);
|
|
|
|
auto iter = gWeakPointerRootMap->find(aPtr);
|
|
if (iter != gWeakPointerRootMap->end()) {
|
|
if (aJSObj) {
|
|
*iter->second = aJSObj;
|
|
} else {
|
|
gWeakPointerRootMap->erase(aPtr);
|
|
}
|
|
} else if (aJSObj) {
|
|
gWeakPointerRootMap->insert(WeakPointerRootMap::value_type(aPtr, NewRoot(aJSObj)));
|
|
}
|
|
}
|
|
|
|
} // extern "C"
|
|
|
|
void
|
|
InitializeWeakPointers()
|
|
{
|
|
gWeakPointerRootMap = new WeakPointerRootMap();
|
|
}
|
|
|
|
} // namespace recordreplay
|
|
} // namespace mozilla
|