mirror of
https://github.com/classilla/tenfourfox.git
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112 lines
2.4 KiB
C++
112 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
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#pragma GCC visibility push(default)
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#include "sync/sync.h" // for sync_merge
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#pragma GCC visibility pop
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#endif
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#include "FenceUtils.h"
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using namespace mozilla::layers;
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namespace IPC {
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void
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ParamTraits<FenceHandle>::Write(Message* aMsg,
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const paramType& aParam)
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{
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FenceHandle handle = aParam;
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MOZ_ASSERT(handle.IsValid());
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#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
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RefPtr<FenceHandle::FdObj> fence = handle.GetAndResetFdObj();
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aMsg->WriteFileDescriptor(base::FileDescriptor(fence->GetAndResetFd(), true));
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#endif
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}
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bool
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ParamTraits<FenceHandle>::Read(const Message* aMsg,
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void** aIter, paramType* aResult)
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{
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#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
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base::FileDescriptor fd;
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if (aMsg->ReadFileDescriptor(aIter, &fd)) {
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aResult->Merge(FenceHandle(new FenceHandle::FdObj(fd.fd)));
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}
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#endif
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return true;
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}
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} // namespace IPC
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namespace mozilla {
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namespace layers {
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FenceHandle::FenceHandle()
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: mFence(new FdObj())
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{
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}
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FenceHandle::FenceHandle(FdObj* aFdObj)
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: mFence(aFdObj)
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{
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MOZ_ASSERT(aFdObj);
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}
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void
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FenceHandle::Merge(const FenceHandle& aFenceHandle)
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{
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#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
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if (!aFenceHandle.IsValid()) {
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return;
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}
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if (!IsValid()) {
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mFence = aFenceHandle.mFence;
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} else {
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int result = sync_merge("FenceHandle", mFence->mFd, aFenceHandle.mFence->mFd);
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if (result == -1) {
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mFence = aFenceHandle.mFence;
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} else {
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mFence = new FdObj(result);
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}
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}
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#endif
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}
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void
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FenceHandle::TransferToAnotherFenceHandle(FenceHandle& aFenceHandle)
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{
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aFenceHandle.mFence = this->GetAndResetFdObj();
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}
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already_AddRefed<FenceHandle::FdObj>
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FenceHandle::GetAndResetFdObj()
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{
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RefPtr<FdObj> fence = mFence;
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mFence = new FdObj();
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return fence.forget();
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}
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already_AddRefed<FenceHandle::FdObj>
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FenceHandle::GetDupFdObj()
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{
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RefPtr<FdObj> fdObj;
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if (IsValid()) {
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fdObj = new FenceHandle::FdObj(dup(mFence->mFd));
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} else {
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fdObj = new FenceHandle::FdObj();
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}
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return fdObj.forget();
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}
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} // namespace layers
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} // namespace mozilla
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