зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.2 KiB
C++
79 строки
2.2 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 "mozilla/ipc/ScopedPort.h"
|
|
#include "mozilla/ipc/NodeController.h"
|
|
#include "chrome/common/ipc_message_utils.h"
|
|
|
|
namespace mozilla::ipc {
|
|
|
|
void ScopedPort::Reset() {
|
|
if (mValid) {
|
|
mController->ClosePort(mPort);
|
|
}
|
|
mValid = false;
|
|
mPort = {};
|
|
mController = nullptr;
|
|
}
|
|
|
|
auto ScopedPort::Release() -> PortRef {
|
|
if (!mValid) {
|
|
return {};
|
|
}
|
|
mValid = false;
|
|
mController = nullptr;
|
|
return std::exchange(mPort, PortRef{});
|
|
}
|
|
|
|
ScopedPort::ScopedPort() = default;
|
|
|
|
ScopedPort::~ScopedPort() { Reset(); }
|
|
|
|
ScopedPort::ScopedPort(PortRef aPort, NodeController* aController)
|
|
: mValid(true), mPort(std::move(aPort)), mController(aController) {
|
|
MOZ_ASSERT(mPort.is_valid() && mController);
|
|
}
|
|
|
|
ScopedPort::ScopedPort(ScopedPort&& aOther)
|
|
: mValid(std::exchange(aOther.mValid, false)),
|
|
mPort(std::move(aOther.mPort)),
|
|
mController(std::move(aOther.mController)) {}
|
|
|
|
ScopedPort& ScopedPort::operator=(ScopedPort&& aOther) {
|
|
if (this != &aOther) {
|
|
Reset();
|
|
mValid = std::exchange(aOther.mValid, false);
|
|
mPort = std::move(aOther.mPort);
|
|
mController = std::move(aOther.mController);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
} // namespace mozilla::ipc
|
|
|
|
void IPC::ParamTraits<mozilla::ipc::ScopedPort>::Write(Message* aMsg,
|
|
paramType&& aParam) {
|
|
aMsg->WriteBool(aParam.IsValid());
|
|
if (!aParam.IsValid()) {
|
|
return;
|
|
}
|
|
aMsg->WritePort(std::move(aParam));
|
|
}
|
|
|
|
bool IPC::ParamTraits<mozilla::ipc::ScopedPort>::Read(const Message* aMsg,
|
|
PickleIterator* aIter,
|
|
paramType* aResult) {
|
|
bool isValid = false;
|
|
if (!aMsg->ReadBool(aIter, &isValid)) {
|
|
return false;
|
|
}
|
|
if (!isValid) {
|
|
*aResult = {};
|
|
return true;
|
|
}
|
|
return aMsg->ConsumePort(aIter, aResult);
|
|
}
|