969aba8fc0
The new implementation: * uses MemoryBarriers to make sure up-to-date data is accessed on both producer and consumer threads * will not allow to overwrite records * doesn't have notion of chunks, instead each entry is aligned on the cache line boundaries BUG=v8:2814 R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/22849002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16284 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
// Copyright 2010 the V8 project authors. All rights reserved.
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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
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// disclaimer in the documentation and/or other materials provided
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// with the 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
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// from 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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#ifndef V8_CPU_PROFILER_INL_H_
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#define V8_CPU_PROFILER_INL_H_
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#include "cpu-profiler.h"
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#include <new>
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#include "circular-queue-inl.h"
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#include "profile-generator-inl.h"
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#include "unbound-queue-inl.h"
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namespace v8 {
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namespace internal {
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void CodeCreateEventRecord::UpdateCodeMap(CodeMap* code_map) {
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code_map->AddCode(start, entry, size);
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if (shared != NULL) {
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entry->set_shared_id(code_map->GetSharedId(shared));
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}
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}
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void CodeMoveEventRecord::UpdateCodeMap(CodeMap* code_map) {
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code_map->MoveCode(from, to);
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}
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void SharedFunctionInfoMoveEventRecord::UpdateCodeMap(CodeMap* code_map) {
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code_map->MoveCode(from, to);
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}
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void ReportBuiltinEventRecord::UpdateCodeMap(CodeMap* code_map) {
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CodeEntry* entry = code_map->FindEntry(start);
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if (!entry) {
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// Code objects for builtins should already have been added to the map but
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// some of them have been filtered out by CpuProfiler.
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return;
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}
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entry->SetBuiltinId(builtin_id);
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}
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TickSample* CpuProfiler::StartTickSample() {
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if (is_profiling_) return processor_->StartTickSample();
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return NULL;
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}
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void CpuProfiler::FinishTickSample() {
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processor_->FinishTickSample();
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}
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TickSample* ProfilerEventsProcessor::StartTickSample() {
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void* address = ticks_buffer_.StartEnqueue();
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if (address == NULL) return NULL;
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TickSampleEventRecord* evt =
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new(address) TickSampleEventRecord(last_code_event_id_);
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return &evt->sample;
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}
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void ProfilerEventsProcessor::FinishTickSample() {
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ticks_buffer_.FinishEnqueue();
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}
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} } // namespace v8::internal
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#endif // V8_CPU_PROFILER_INL_H_
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