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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_TCMALLOC_INTERNALS_REQUEST_JOB_H_
#define CONTENT_BROWSER_TCMALLOC_INTERNALS_REQUEST_JOB_H_
#include <map>
#include "base/basictypes.h"
#include "base/memory/singleton.h"
#include "base/process/process.h"
#include "build/build_config.h" // USE_TCMALLOC
#include "net/url_request/url_request_simple_job.h"
namespace content {
class AboutTcmallocOutputs {
public:
// Returns the singleton instance.
static AboutTcmallocOutputs* GetInstance();
// Records the output for a specified header string.
void SetOutput(const std::string& header, const std::string& output);
void DumpToHTMLTable(std::string* data);
// Callback for output returned from a child process. Adds
// the output for a canonical process-specific header string that
// incorporates the pid.
void OnStatsForChildProcess(base::ProcessId pid,
int process_type,
const std::string& output);
private:
AboutTcmallocOutputs();
~AboutTcmallocOutputs();
// A map of header strings (e.g. "Browser", "Renderer PID 123")
// to the tcmalloc output collected for each process.
typedef std::map<std::string, std::string> AboutTcmallocOutputsType;
AboutTcmallocOutputsType outputs_;
friend struct DefaultSingletonTraits<AboutTcmallocOutputs>;
DISALLOW_COPY_AND_ASSIGN(AboutTcmallocOutputs);
};
class TcmallocInternalsRequestJob : public net::URLRequestSimpleJob {
public:
TcmallocInternalsRequestJob(net::URLRequest* request,
net::NetworkDelegate* network_delegate);
virtual int GetData(std::string* mime_type,
std::string* charset,
std::string* data,
const net::CompletionCallback& callback) const OVERRIDE;
protected:
virtual ~TcmallocInternalsRequestJob() {}
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(TcmallocInternalsRequestJob);
};
} // namespace content
#endif // CONTENT_BROWSER_TCMALLOC_INTERNALS_REQUEST_JOB_H_
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