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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /tools/profiler/core/SyncProfile.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'tools/profiler/core/SyncProfile.cpp')
-rw-r--r--tools/profiler/core/SyncProfile.cpp57
1 files changed, 57 insertions, 0 deletions
diff --git a/tools/profiler/core/SyncProfile.cpp b/tools/profiler/core/SyncProfile.cpp
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+++ b/tools/profiler/core/SyncProfile.cpp
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+/* -*- 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);
+}