Add m-esr52 at 52.6.0

1 files changed, 57 insertions, 0 deletions

diff --git a/tools/profiler/core/SyncProfile.cpp b/tools/profiler/core/SyncProfile.cpp
new file mode 100644
index 000000000..4c4742f34
--- /dev/null
+++ b/tools/profiler/core/SyncProfile.cpp
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "SyncProfile.h"
+
+SyncProfile::SyncProfile(ThreadInfo* aInfo, int aEntrySize)
+  : ThreadProfile(aInfo, new ProfileBuffer(aEntrySize))
+  , mOwnerState(REFERENCED)
+{
+  MOZ_COUNT_CTOR(SyncProfile);
+}
+
+SyncProfile::~SyncProfile()
+{
+  MOZ_COUNT_DTOR(SyncProfile);
+
+  // SyncProfile owns the ThreadInfo; see NewSyncProfile.
+  ThreadInfo* info = GetThreadInfo();
+  delete info;
+}
+
+bool
+SyncProfile::ShouldDestroy()
+{
+  ::MutexAutoLock lock(GetMutex());
+  if (mOwnerState == OWNED) {
+    mOwnerState = OWNER_DESTROYING;
+    return true;
+  }
+  mOwnerState = ORPHANED;
+  return false;
+}
+
+void
+SyncProfile::EndUnwind()
+{
+  if (mOwnerState != ORPHANED) {
+    mOwnerState = OWNED;
+  }
+  // Save mOwnerState before we release the mutex
+  OwnerState ownerState = mOwnerState;
+  ThreadProfile::EndUnwind();
+  if (ownerState == ORPHANED) {
+    delete this;
+  }
+}
+
+// SyncProfiles' stacks are deduplicated in the context of the containing
+// profile in which the backtrace is as a marker payload.
+void
+SyncProfile::StreamJSON(SpliceableJSONWriter& aWriter, UniqueStacks& aUniqueStacks)
+{
+  ThreadProfile::StreamSamplesAndMarkers(aWriter, /* aSinceTime = */ 0, aUniqueStacks);
+}