739351d476
Change log:95336cb92b..191d55580eFull diff:95336cb92b..191d55580eRoll chromium third_party 4e16929f46..3a8f2a9e1e Change log:4e16929f46..3a8f2a9e1eChanged dependencies: * src/tools:c44a3f5eca..f524a53b81DEPS diff:95336cb92b..191d55580e/DEPS No update to Clang. TBR=titovartem@google.com, BUG=None CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal Change-Id: Ic9c4a62b050383646e9fcf5cc07a5653c14ac06e Reviewed-on: https://webrtc-review.googlesource.com/76120 Reviewed-by: Patrik Höglund <phoglund@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Artem Titov <titovartem@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23205}
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
// Copyright (c) 2009, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// ---
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// Author: Andrew Fikes
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//
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// Utility class for coalescing sampled stack traces. Not thread-safe.
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#ifndef TCMALLOC_STACK_TRACE_TABLE_H_
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#define TCMALLOC_STACK_TRACE_TABLE_H_
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#include <config.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h> // for uintptr_t
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#endif
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#include "common.h"
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namespace tcmalloc {
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class PERFTOOLS_DLL_DECL StackTraceTable {
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public:
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// REQUIRES: L < pageheap_lock
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StackTraceTable();
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~StackTraceTable();
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// Adds stack trace "t" to table.
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//
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// REQUIRES: L >= pageheap_lock
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void AddTrace(const StackTrace& t);
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// Returns stack traces formatted per MallocExtension guidelines.
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// May return NULL on error. Clears state before returning.
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//
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// REQUIRES: L < pageheap_lock
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void** ReadStackTracesAndClear();
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// Exposed for PageHeapAllocator
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struct Bucket {
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// Key
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uintptr_t hash;
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StackTrace trace;
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// Payload
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int count;
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Bucket* next;
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bool KeyEqual(uintptr_t h, const StackTrace& t) const;
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};
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// For testing
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int depth_total() const { return depth_total_; }
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int bucket_total() const { return bucket_total_; }
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private:
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static const int kHashTableSize = 1 << 14; // => table_ is 128k
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bool error_;
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int depth_total_;
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int bucket_total_;
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Bucket** table_;
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};
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} // namespace tcmalloc
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#endif // TCMALLOC_STACK_TRACE_TABLE_H_
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