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/* -*- 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);
}