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/*
* Copyright (c) 2010, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ScriptProfiler.h"
#include "ScriptString.h"
#include <v8-profiler.h>
namespace WebCore {
void ScriptProfiler::start(ScriptState* state, const String& title)
{
v8::HandleScope hs;
v8::CpuProfiler::StartProfiling(v8String(title));
}
PassRefPtr<ScriptProfile> ScriptProfiler::stop(ScriptState* state, const String& title)
{
v8::HandleScope hs;
const v8::CpuProfile* profile = state ?
v8::CpuProfiler::StopProfiling(v8String(title), state->context()->GetSecurityToken()) :
v8::CpuProfiler::StopProfiling(v8String(title));
return profile ? ScriptProfile::create(profile) : 0;
}
void ScriptProfiler::takeHeapSnapshot()
{
v8::V8::ResumeProfilerEx(v8::PROFILER_MODULE_HEAP_SNAPSHOT
| v8::PROFILER_MODULE_HEAP_STATS
| v8::PROFILER_MODULE_JS_CONSTRUCTORS);
}
long ScriptProfiler::getProfilerLogLines(long position, String* data)
{
static char buffer[65536];
const int readSize = v8::V8::GetLogLines(position, buffer, sizeof(buffer) - 1);
buffer[readSize] = '\0';
position += readSize;
*data = buffer;
return position;
}
} // namespace WebCore
|
