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Bug 722034 - Part 6 - Stop accessing cache descriptor on main thread for telemetry purposes, r=hurley

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This commit is contained in:
Brian Smith 2012-05-31 15:20:06 -07:00
parent 5a381f2098
commit 9e08c77759
2 changed files with 47 additions and 40 deletions
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85
netwerk/protocol/http/nsHttpChannel.cpp
View File

@ -27,7 +27,6 @@
#include "nsChannelClassifier.h"
#include "nsIRedirectResultListener.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/Telemetry.h"
#include "nsDOMError.h"
#include "nsAlgorithm.h"
#include "sampler.h"
@ -53,6 +52,19 @@ static NS_DEFINE_CID(kStreamListenerTeeCID, NS_STREAMLISTENERTEE_CID);
static NS_DEFINE_CID(kStreamTransportServiceCID,
NS_STREAMTRANSPORTSERVICE_CID);
const mozilla::Telemetry::ID UNKNOWN_DEVICE
= static_cast<mozilla::Telemetry::ID>(0);
void
AccumulateCacheHitTelemetry(mozilla::Telemetry::ID deviceHistogram,
PRUint32 hitOrMiss)
{
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_CACHE_DISPOSITION, hitOrMiss);
if (deviceHistogram != UNKNOWN_DEVICE) {
mozilla::Telemetry::Accumulate(deviceHistogram, hitOrMiss);
}
}
const char *
GetCacheSessionNameForStoragePolicy(nsCacheStoragePolicy storagePolicy,
bool isPrivate)
@ -197,6 +209,7 @@ public:
, mCachedContentIsPartial(false)
, mCustomConditionalRequest(false)
, mDidReval(false)
, mCacheEntryDeviceTelemetryID(UNKNOWN_DEVICE)
{
MOZ_ASSERT(NS_IsMainThread());
}
@ -257,6 +270,7 @@ private:
/*out*/ bool mCachedContentIsPartial;
/*out*/ bool mCustomConditionalRequest;
/*out*/ bool mDidReval;
/*out*/ mozilla::Telemetry::ID mCacheEntryDeviceTelemetryID;
};
NS_IMPL_ISUPPORTS_INHERITED1(HttpCacheQuery, nsRunnable, nsICacheListener)
@ -269,6 +283,7 @@ nsHttpChannel::nsHttpChannel()
: ALLOW_THIS_IN_INITIALIZER_LIST(HttpAsyncAborter<nsHttpChannel>(this))
, mLogicalOffset(0)
, mCacheAccess(0)
, mCacheEntryDeviceTelemetryID(UNKNOWN_DEVICE)
, mPostID(0)
, mRequestTime(0)
, mOnCacheEntryAvailableCallback(nsnull)
@ -444,25 +459,10 @@ nsHttpChannel::ContinueConnect()
if (NS_FAILED(rv) && event) {
event->Revoke();
}
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_CACHE_DISPOSITION, kCacheHit);
char* cacheDeviceID = nsnull;
mCacheEntry->GetDeviceID(&cacheDeviceID);
if (cacheDeviceID) {
if (!strcmp(cacheDeviceID, kDiskDeviceID))
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_DISK_CACHE_DISPOSITION,
kCacheHit);
else if (!strcmp(cacheDeviceID, kMemoryDeviceID))
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_MEMORY_CACHE_DISPOSITION,
kCacheHit);
else if (!strcmp(cacheDeviceID, kOfflineDeviceID))
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_OFFLINE_CACHE_DISPOSITION,
kCacheHit);
}
AccumulateCacheHitTelemetry(mCacheEntryDeviceTelemetryID,
kCacheHit);
return rv;
}
else if (mLoadFlags & LOAD_ONLY_FROM_CACHE) {
@ -1289,7 +1289,7 @@ nsHttpChannel::ProcessResponse()
break;
}
int cacheDisposition;
PRUint32 cacheDisposition;
if (!mDidReval)
cacheDisposition = kCacheMissed;
else if (successfulReval)
@ -1297,26 +1297,9 @@ nsHttpChannel::ProcessResponse()
else
cacheDisposition = kCacheMissedViaReval;
mozilla::Telemetry::Accumulate(mozilla::Telemetry::HTTP_CACHE_DISPOSITION,
cacheDisposition);
if (mCacheEntry) {
char* cacheDeviceID = nsnull;
mCacheEntry->GetDeviceID(&cacheDeviceID);
if (cacheDeviceID) {
if (!strcmp(cacheDeviceID, kDiskDeviceID))
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_DISK_CACHE_DISPOSITION,
cacheDisposition);
else if (!strcmp(cacheDeviceID, kMemoryDeviceID))
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_MEMORY_CACHE_DISPOSITION,
cacheDisposition);
else if (!strcmp(cacheDeviceID, kOfflineDeviceID))
mozilla::Telemetry::Accumulate(
mozilla::Telemetry::HTTP_OFFLINE_CACHE_DISPOSITION,
cacheDisposition);
}
}
AccumulateCacheHitTelemetry(mCacheEntry ? mCacheEntryDeviceTelemetryID
: UNKNOWN_DEVICE,
cacheDisposition);
return rv;
}
@ -2861,6 +2844,27 @@ HttpCacheQuery::OnCacheEntryAvailable(nsICacheEntryDescriptor *entry,
if (NS_FAILED(rv))
NS_WARNING("cache check failed");
if (mCachedContentIsValid) {
char* cacheDeviceID = nsnull;
mCacheEntry->GetDeviceID(&cacheDeviceID);
if (cacheDeviceID) {
if (!strcmp(cacheDeviceID, kDiskDeviceID)) {
mCacheEntryDeviceTelemetryID
= mozilla::Telemetry::HTTP_DISK_CACHE_DISPOSITION;
} else if (!strcmp(cacheDeviceID, kMemoryDeviceID)) {
mCacheEntryDeviceTelemetryID
= mozilla::Telemetry::HTTP_MEMORY_CACHE_DISPOSITION;
} else if (!strcmp(cacheDeviceID, kOfflineDeviceID)) {
mCacheEntryDeviceTelemetryID
= mozilla::Telemetry::HTTP_OFFLINE_CACHE_DISPOSITION;
} else {
MOZ_NOT_REACHED("unknown cache device ID");
}
delete cacheDeviceID;
}
}
rv = NS_DispatchToMainThread(this);
return rv;
}
@ -5395,6 +5399,7 @@ nsHttpChannel::OnCacheEntryAvailable(nsICacheEntryDescriptor *entry,
mCachedContentIsPartial = mCacheQuery->mCachedContentIsPartial;
mCustomConditionalRequest = mCacheQuery->mCustomConditionalRequest;
mDidReval = mCacheQuery->mDidReval;
mCacheEntryDeviceTelemetryID = mCacheQuery->mCacheEntryDeviceTelemetryID;
mCacheQuery = nsnull;
}

2
netwerk/protocol/http/nsHttpChannel.h
View File

@ -30,6 +30,7 @@
#include "nsDNSPrefetch.h"
#include "TimingStruct.h"
#include "AutoClose.h"
#include "mozilla/Telemetry.h"
class nsAHttpConnection;
@ -291,6 +292,7 @@ private:
nsAutoPtr<nsHttpResponseHead> mCachedResponseHead;
nsCOMPtr<nsISupports> mCachedSecurityInfo;
nsCacheAccessMode mCacheAccess;
mozilla::Telemetry::ID mCacheEntryDeviceTelemetryID;
PRUint32 mPostID;
PRUint32 mRequestTime;