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Bug 901597, part 2 - Add environment var to CC log only main or worker threads. r=smaug

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This commit is contained in:
Andrew McCreight 2014-02-20 14:27:04 -08:00
parent 1ca8eaa3a1
commit 7c710ce5ca
1 changed files with 17 additions and 2 deletions
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19
xpcom/base/nsCycleCollector.cpp
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@ -203,6 +203,11 @@ using namespace mozilla;
//
// MOZ_CC_LOG_SHUTDOWN: If defined, log cycle collector heaps at shutdown.
//
// MOZ_CC_LOG_THREAD: If set to "main", only automatically log main thread
// CCs. If set to "worker", only automatically log worker CCs. If set to "all",
// log either. The default value is "all". This must be used with either
// MOZ_CC_LOG_ALL or MOZ_CC_LOG_SHUTDOWN for it to do anything.
//
// MOZ_CC_ALL_TRACES_AT_SHUTDOWN: If defined, any cycle collector
// logging done at shutdown will be WantAllTraces, which disables
// various cycle collector optimizations to give a fuller picture of
@ -230,17 +235,27 @@ struct nsCycleCollectorParams
bool mLogAll;
bool mLogShutdown;
bool mAllTracesAtShutdown;
bool mLogThisThread;
nsCycleCollectorParams() :
mLogAll (PR_GetEnv("MOZ_CC_LOG_ALL") != nullptr),
mLogShutdown (PR_GetEnv("MOZ_CC_LOG_SHUTDOWN") != nullptr),
mAllTracesAtShutdown (PR_GetEnv("MOZ_CC_ALL_TRACES_AT_SHUTDOWN") != nullptr)
mAllTracesAtShutdown (PR_GetEnv("MOZ_CC_ALL_TRACES_AT_SHUTDOWN") != nullptr),
mLogThisThread(true)
{
const char* logThreadEnv = PR_GetEnv("MOZ_CC_LOG_THREAD");
if (logThreadEnv && !!strcmp(logThreadEnv, "all")) {
if (NS_IsMainThread()) {
mLogThisThread = !strcmp(logThreadEnv, "main");
} else {
mLogThisThread = !strcmp(logThreadEnv, "worker");
}
}
}
bool LogThisCC(bool aIsShutdown)
{
return mLogAll || (aIsShutdown && mLogShutdown);
return (mLogAll || (aIsShutdown && mLogShutdown)) && mLogThisThread;
}
};