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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "CompositableChild.h"
#include "CompositableClient.h"
namespace mozilla {
namespace layers {
/* static */ PCompositableChild*
CompositableChild::CreateActor()
{
CompositableChild* child = new CompositableChild();
child->AddRef();
return child;
}
/* static */ void
CompositableChild::DestroyActor(PCompositableChild* aChild)
{
static_cast<CompositableChild*>(aChild)->Release();
}
CompositableChild::CompositableChild()
: mCompositableClient(nullptr),
mAsyncID(0),
mCanSend(true)
{
MOZ_COUNT_CTOR(CompositableChild);
}
CompositableChild::~CompositableChild()
{
MOZ_COUNT_DTOR(CompositableChild);
}
bool
CompositableChild::IsConnected() const
{
return mCompositableClient && mCanSend;
}
void
CompositableChild::Init(CompositableClient* aCompositable, uint64_t aAsyncID)
{
mCompositableClient = aCompositable;
mAsyncID = aAsyncID;
}
void
CompositableChild::RevokeCompositableClient()
{
mCompositableClient = nullptr;
}
RefPtr<CompositableClient>
CompositableChild::GetCompositableClient()
{
return mCompositableClient;
}
void
CompositableChild::ActorDestroy(ActorDestroyReason)
{
MOZ_ASSERT(NS_IsMainThread());
mCanSend = false;
if (mCompositableClient) {
mCompositableClient->mCompositableChild = nullptr;
mCompositableClient = nullptr;
}
}
/* static */ PCompositableChild*
AsyncCompositableChild::CreateActor()
{
AsyncCompositableChild* child = new AsyncCompositableChild();
child->AddRef();
return child;
}
AsyncCompositableChild::AsyncCompositableChild()
: mLock("AsyncCompositableChild.mLock")
{
}
AsyncCompositableChild::~AsyncCompositableChild()
{
}
void
AsyncCompositableChild::ActorDestroy(ActorDestroyReason)
{
mCanSend = false;
// We do not revoke CompositableClient::mCompositableChild here, since that
// could race with the main thread.
RevokeCompositableClient();
}
void
AsyncCompositableChild::RevokeCompositableClient()
{
MutexAutoLock lock(mLock);
mCompositableClient = nullptr;
}
RefPtr<CompositableClient>
AsyncCompositableChild::GetCompositableClient()
{
MutexAutoLock lock(mLock);
return CompositableChild::GetCompositableClient();
}
} // namespace layers
} // namespace mozilla
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