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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "TracedTaskCommon.h"
#include "GeckoTaskTracerImpl.h"
// NS_ENSURE_TRUE_VOID() without the warning on the debug build.
#define ENSURE_TRUE_VOID(x) \
do { \
if (MOZ_UNLIKELY(!(x))) { \
return; \
} \
} while (0)
namespace mozilla {
namespace tasktracer {
TracedTaskCommon::TracedTaskCommon()
: mSourceEventType(SourceEventType::Unknown),
mSourceEventId(0),
mParentTaskId(0),
mTaskId(0),
mIsTraceInfoInit(false) {}
TracedTaskCommon::~TracedTaskCommon() {}
void TracedTaskCommon::Init() {
// Keep the following line before GetOrCreateTraceInfo() to avoid a
// deadlock.
uint64_t taskid = GenNewUniqueTaskId();
TraceInfoHolder info = GetOrCreateTraceInfo();
ENSURE_TRUE_VOID(info);
mTaskId = taskid;
mSourceEventId = info->mCurTraceSourceId;
mSourceEventType = info->mCurTraceSourceType;
mParentTaskId = info->mCurTaskId;
mIsTraceInfoInit = true;
}
void TracedTaskCommon::DispatchTask(int aDelayTimeMs) {
LogDispatch(mTaskId, mParentTaskId, mSourceEventId, mSourceEventType,
aDelayTimeMs);
}
void TracedTaskCommon::DoGetTLSTraceInfo() {
TraceInfoHolder info = GetOrCreateTraceInfo();
ENSURE_TRUE_VOID(info);
MOZ_ASSERT(!mIsTraceInfoInit);
mSourceEventType = info->mCurTraceSourceType;
mSourceEventId = info->mCurTraceSourceId;
mTaskId = info->mCurTaskId;
mIsTraceInfoInit = true;
}
void TracedTaskCommon::DoSetTLSTraceInfo() {
TraceInfoHolder info = GetOrCreateTraceInfo();
ENSURE_TRUE_VOID(info);
if (mIsTraceInfoInit) {
info->mCurTraceSourceId = mSourceEventId;
info->mCurTraceSourceType = mSourceEventType;
info->mCurTaskId = mTaskId;
}
}
void TracedTaskCommon::ClearTLSTraceInfo() {
TraceInfoHolder info = GetOrCreateTraceInfo();
ENSURE_TRUE_VOID(info);
info->mCurTraceSourceId = 0;
info->mCurTraceSourceType = SourceEventType::Unknown;
info->mCurTaskId = 0;
}
/**
* Implementation of class TracedRunnable.
*/
NS_IMPL_ISUPPORTS(TracedRunnable, nsIRunnable);
TracedRunnable::TracedRunnable(already_AddRefed<nsIRunnable>&& aOriginalObj)
: TracedTaskCommon(), mOriginalObj(std::move(aOriginalObj)) {
Init();
LogVirtualTablePtr(mTaskId, mSourceEventId,
*reinterpret_cast<uintptr_t**>(mOriginalObj.get()));
}
TracedRunnable::~TracedRunnable() {}
NS_IMETHODIMP
TracedRunnable::Run() {
SetTLSTraceInfo();
LogBegin(mTaskId, mSourceEventId);
nsresult rv = mOriginalObj->Run();
LogEnd(mTaskId, mSourceEventId);
ClearTLSTraceInfo();
return rv;
}
/**
* CreateTracedRunnable() returns a TracedRunnable wrapping the original
* nsIRunnable object, aRunnable.
*/
already_AddRefed<nsIRunnable> CreateTracedRunnable(
already_AddRefed<nsIRunnable>&& aRunnable) {
RefPtr<nsIRunnable> runnable = new TracedRunnable(std::move(aRunnable));
return runnable.forget();
}
void VirtualTask::AutoRunTask::StartScope(VirtualTask* aTask) {
mTask->SetTLSTraceInfo();
LogBegin(mTask->mTaskId, mTask->mSourceEventId);
}
void VirtualTask::AutoRunTask::StopScope() {
LogEnd(mTask->mTaskId, mTask->mSourceEventId);
}
} // namespace tasktracer
} // namespace mozilla
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