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/* Copyright 2013 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mongo/scripting/v8_profiler.h"
#include "mongo/util/log.h"
#include "mongo/util/mongoutils/str.h"
namespace mongo {
void V8CpuProfiler::start(const StringData name) {
v8::CpuProfiler::StartProfiling(v8::String::New(name.toString().c_str()));
}
void V8CpuProfiler::stop(const StringData name) {
_cpuProfiles.insert(make_pair(name.toString(),
v8::CpuProfiler::StopProfiling(v8::String::New(name.toString().c_str(),
name.size()))));
}
void V8CpuProfiler::traverseDepthFirst(const v8::CpuProfileNode* cpuProfileNode,
BSONArrayBuilder& arrayBuilder) {
if (cpuProfileNode == NULL)
return;
BSONObjBuilder frameObjBuilder;
frameObjBuilder.append("Function",
*v8::String::Utf8Value(cpuProfileNode->GetFunctionName()));
frameObjBuilder.append("Source",
*v8::String::Utf8Value(cpuProfileNode->GetScriptResourceName()));
frameObjBuilder.appendNumber("Line", cpuProfileNode->GetLineNumber());
frameObjBuilder.appendNumber("SelfTime", cpuProfileNode->GetSelfTime());
frameObjBuilder.appendNumber("TotalTime", cpuProfileNode->GetTotalTime());
if (cpuProfileNode->GetChildrenCount()) {
BSONArrayBuilder subArrayBuilder(frameObjBuilder.subarrayStart("Children"));
for (int i = 0; i < cpuProfileNode->GetChildrenCount(); ++i) {
traverseDepthFirst(cpuProfileNode->GetChild(i), subArrayBuilder);
}
subArrayBuilder.done();
}
arrayBuilder << frameObjBuilder.obj();
}
const BSONArray V8CpuProfiler::fetch(const StringData name) {
BSONArrayBuilder arrayBuilder;
CpuProfileMap::const_iterator iProf = _cpuProfiles.find(name.toString());
if (iProf == _cpuProfiles.end())
return arrayBuilder.arr();
const v8::CpuProfile* cpuProfile = iProf->second;
if (cpuProfile == NULL)
return arrayBuilder.arr();
traverseDepthFirst(cpuProfile->GetTopDownRoot(), arrayBuilder);
return arrayBuilder.arr();
}
}
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