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Bug 1356289 - Part 2. Make gfx use the new SharedMemory::SetHandle API. r=jrmuizel

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This commit is contained in:
Andrew Osmond 2017-04-18 12:25:00 -04:00
parent 5c88ddfaa2
commit 164b45b6a8
1 changed files with 5 additions and 3 deletions
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8
gfx/layers/ipc/CompositorBridgeChild.cpp
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@ -654,7 +654,7 @@ CompositorBridgeChild::SharedFrameMetricsData::SharedFrameMetricsData(
, mAPZCId(aAPZCId)
{
mBuffer = new ipc::SharedMemoryBasic;
mBuffer->SetHandle(metrics);
mBuffer->SetHandle(metrics, ipc::SharedMemory::RightsReadOnly);
mBuffer->Map(sizeof(FrameMetrics));
mMutex = new CrossProcessMutex(handle);
MOZ_COUNT_CTOR(SharedFrameMetricsData);
@ -672,7 +672,8 @@ CompositorBridgeChild::SharedFrameMetricsData::~SharedFrameMetricsData()
void
CompositorBridgeChild::SharedFrameMetricsData::CopyFrameMetrics(FrameMetrics* aFrame)
{
FrameMetrics* frame = static_cast<FrameMetrics*>(mBuffer->memory());
const FrameMetrics* frame =
static_cast<const FrameMetrics*>(mBuffer->memory());
MOZ_ASSERT(frame);
mMutex->Lock();
*aFrame = *frame;
@ -682,7 +683,8 @@ CompositorBridgeChild::SharedFrameMetricsData::CopyFrameMetrics(FrameMetrics* aF
FrameMetrics::ViewID
CompositorBridgeChild::SharedFrameMetricsData::GetViewID()
{
FrameMetrics* frame = static_cast<FrameMetrics*>(mBuffer->memory());
const FrameMetrics* frame =
static_cast<const FrameMetrics*>(mBuffer->memory());
MOZ_ASSERT(frame);
// Not locking to read of mScrollId since it should not change after being
// initially set.