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Bug 1194555 - Part 0: Cleanup GetReportsState constructor. r=njn

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Move GetReportsState ctor to the impl so that mChildrenPending doesn't have
to be heap allocated.
This commit is contained in:
Eric Rahm 2015-10-06 11:23:30 -07:00
parent 2ddf767c5a
commit bf6c7af6ed
2 changed files with 30 additions and 32 deletions
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39
xpcom/base/nsMemoryReporterManager.cpp
View File

@ -1438,7 +1438,6 @@ nsMemoryReporterManager::GetReportsExtended(
aFinishReporting,
aFinishReportingData,
aDMDDumpIdent);
mGetReportsState->mChildrenPending = new nsTArray<nsRefPtr<mozilla::dom::ContentParent>>();
if (aMinimize) {
rv = MinimizeMemoryUsage(NS_NewRunnableMethod(
@ -1479,7 +1478,7 @@ nsMemoryReporterManager::StartGettingReports()
// to be buffered and consume (possibly scarce) memory.
for (size_t i = 0; i < childWeakRefs.Length(); ++i) {
s->mChildrenPending->AppendElement(childWeakRefs[i]);
s->mChildrenPending.AppendElement(childWeakRefs[i]);
}
nsCOMPtr<nsITimer> timer = do_CreateInstance(NS_TIMER_CONTRACTID);
@ -1676,29 +1675,29 @@ nsMemoryReporterManager::EndProcessReport(uint32_t aGeneration, bool aSuccess)
aGeneration, s->mNumProcessesCompleted,
aSuccess ? "completed" : "exited during report",
s->mNumProcessesRunning,
static_cast<unsigned>(s->mChildrenPending->Length()));
static_cast<unsigned>(s->mChildrenPending.Length()));
// Start pending children up to the concurrency limit.
while (s->mNumProcessesRunning < s->mConcurrencyLimit &&
!s->mChildrenPending->IsEmpty()) {
!s->mChildrenPending.IsEmpty()) {
// Pop last element from s->mChildrenPending
nsRefPtr<ContentParent> nextChild;
nextChild.swap(s->mChildrenPending->LastElement());
s->mChildrenPending->TruncateLength(s->mChildrenPending->Length() - 1);
nextChild.swap(s->mChildrenPending.LastElement());
s->mChildrenPending.TruncateLength(s->mChildrenPending.Length() - 1);
// Start report (if the child is still alive and not Nuwa).
if (StartChildReport(nextChild, s)) {
++s->mNumProcessesRunning;
MEMORY_REPORTING_LOG("HandleChildReports (aGen=%u): started child report"
" (%u running, %u pending)\n",
aGeneration, s->mNumProcessesRunning,
static_cast<unsigned>(s->mChildrenPending->Length()));
static_cast<unsigned>(s->mChildrenPending.Length()));
}
}
// If all the child processes (if any) have reported, we can cancel
// the timer (if started) and finish up. Otherwise, just return.
if (s->mNumProcessesRunning == 0) {
MOZ_ASSERT(s->mChildrenPending->IsEmpty());
MOZ_ASSERT(s->mChildrenPending.IsEmpty());
if (s->mTimer) {
s->mTimer->Cancel();
}
@ -1718,7 +1717,7 @@ nsMemoryReporterManager::TimeoutCallback(nsITimer* aTimer, void* aData)
MOZ_RELEASE_ASSERT(s, "mgr->mGetReportsState");
MEMORY_REPORTING_LOG("TimeoutCallback (s->gen=%u; %u running, %u pending)\n",
s->mGeneration, s->mNumProcessesRunning,
static_cast<unsigned>(s->mChildrenPending->Length()));
static_cast<unsigned>(s->mChildrenPending.Length()));
// We don't bother sending any kind of cancellation message to the child
// processes that haven't reported back.
@ -1749,9 +1748,27 @@ nsMemoryReporterManager::FinishReporting()
return rv;
}
nsMemoryReporterManager::GetReportsState::~GetReportsState()
nsMemoryReporterManager::GetReportsState::GetReportsState(
uint32_t aGeneration, bool aAnonymize, bool aMinimize,
uint32_t aConcurrencyLimit,
nsIHandleReportCallback* aHandleReport,
nsISupports* aHandleReportData,
nsIFinishReportingCallback* aFinishReporting,
nsISupports* aFinishReportingData,
const nsAString& aDMDDumpIdent)
: mGeneration(aGeneration)
, mAnonymize(aAnonymize)
, mMinimize(aMinimize)
, mChildrenPending()
, mNumProcessesRunning(1) // reporting starts with the parent
, mNumProcessesCompleted(0)
, mConcurrencyLimit(aConcurrencyLimit)
, mHandleReport(aHandleReport)
, mHandleReportData(aHandleReportData)
, mFinishReporting(aFinishReporting)
, mFinishReportingData(aFinishReportingData)
, mDMDDumpIdent(aDMDDumpIdent)
{
delete mChildrenPending;
}
static void

23
xpcom/base/nsMemoryReporterManager.h
View File

@ -211,10 +211,7 @@ private:
bool mAnonymize;
bool mMinimize;
nsCOMPtr<nsITimer> mTimer;
// This is a pointer to an nsTArray because otherwise C++ is
// unhappy unless this header includes ContentParent.h, which not
// everything that includes this header knows how to find.
nsTArray<nsRefPtr<mozilla::dom::ContentParent>>* mChildrenPending;
nsTArray<nsRefPtr<mozilla::dom::ContentParent>> mChildrenPending;
uint32_t mNumProcessesRunning;
uint32_t mNumProcessesCompleted;
uint32_t mConcurrencyLimit;
@ -230,23 +227,7 @@ private:
nsISupports* aHandleReportData,
nsIFinishReportingCallback* aFinishReporting,
nsISupports* aFinishReportingData,
const nsAString& aDMDDumpIdent)
: mGeneration(aGeneration)
, mAnonymize(aAnonymize)
, mMinimize(aMinimize)
, mChildrenPending(nullptr)
, mNumProcessesRunning(1) // reporting starts with the parent
, mNumProcessesCompleted(0)
, mConcurrencyLimit(aConcurrencyLimit)
, mHandleReport(aHandleReport)
, mHandleReportData(aHandleReportData)
, mFinishReporting(aFinishReporting)
, mFinishReportingData(aFinishReportingData)
, mDMDDumpIdent(aDMDDumpIdent)
{
}
~GetReportsState();
const nsAString& aDMDDumpIdent);
};
// When this is non-null, a request is in flight. Note: We use manual