1 files changed, 128 insertions, 0 deletions
diff --git a/tools/profiler/tasktracer/TracedTaskCommon.cpp b/tools/profiler/tasktracer/TracedTaskCommon.cpp
new file mode 100644
index 0000000000..4b5d4d4cc6
--- /dev/null
+++ b/tools/profiler/tasktracer/TracedTaskCommon.cpp
@@ -0,0 +1,128 @@
+/* -*- 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