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Bug 1278927 - TSan: data race image/imgFrame.cpp on hasCheckedOptimize. r=seth.

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This commit is contained in:
Julian Seward 2016-06-20 15:46:00 +02:00
parent a4603ba357
commit 5b033cd6c7
1 changed files with 10 additions and 9 deletions
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19
image/imgFrame.cpp
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@ -15,8 +15,6 @@
#include "gfxUtils.h"
#include "gfxAlphaRecovery.h"
static bool gDisableOptimize = false;
#include "GeckoProfiler.h"
#include "mozilla/Likely.h"
#include "MainThreadUtils.h"
@ -149,13 +147,6 @@ imgFrame::imgFrame()
, mSinglePixel(false)
, mCompositingFailed(false)
{
static bool hasCheckedOptimize = false;
if (!hasCheckedOptimize) {
if (PR_GetEnv("MOZ_DISABLE_IMAGE_OPTIMIZE")) {
gDisableOptimize = true;
}
hasCheckedOptimize = true;
}
}
imgFrame::~imgFrame()
@ -339,6 +330,16 @@ imgFrame::Optimize()
MOZ_ASSERT(mLockCount == 1,
"Should only optimize when holding the lock exclusively");
// Check whether image optimization is disabled -- not thread safe!
static bool gDisableOptimize = false;
static bool hasCheckedOptimize = false;
if (!hasCheckedOptimize) {
if (PR_GetEnv("MOZ_DISABLE_IMAGE_OPTIMIZE")) {
gDisableOptimize = true;
}
hasCheckedOptimize = true;
}
// Don't optimize during shutdown because gfxPlatform may not be available.
if (ShutdownTracker::ShutdownHasStarted()) {
return NS_OK;