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// Copyright (c) 2010 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.

#include "chrome/test/chrome_process_util.h"

#include <vector>
#include <set>

#include "base/process_util.h"
#include "base/time.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/result_codes.h"

using base::Time;
using base::TimeDelta;

void TerminateAllChromeProcesses(base::ProcessId browser_pid) {
  // Total time the function will wait for chrome processes
  // to terminate after it told them to do so.
  const TimeDelta kExitTimeout = TimeDelta::FromSeconds(30);

  ChromeProcessList process_pids(GetRunningChromeProcesses(browser_pid));

  std::vector<base::ProcessHandle> handles;
    ChromeProcessList::const_iterator it;
    for (it = process_pids.begin(); it != process_pids.end(); ++it) {
      base::ProcessHandle handle;
      // Ignore processes for which we can't open the handle. We don't guarantee
      // that all processes will terminate, only try to do so.
      if (base::OpenPrivilegedProcessHandle(*it, &handle))

  std::vector<base::ProcessHandle>::const_iterator it;
  for (it = handles.begin(); it != handles.end(); ++it)
    base::KillProcess(*it, ResultCodes::TASKMAN_KILL, false);

  const Time start = Time::Now();
  for (it = handles.begin();
       it != handles.end() && Time::Now() - start < kExitTimeout;
       ++it) {
    int64 wait_time_ms = (Time::Now() - start).InMilliseconds();
    base::WaitForSingleProcess(*it, wait_time_ms);

  for (it = handles.begin(); it != handles.end(); ++it)

class ChildProcessFilter : public base::ProcessFilter {
  explicit ChildProcessFilter(base::ProcessId parent_pid)
      : parent_pids_(&parent_pid, (&parent_pid) + 1) {}

  explicit ChildProcessFilter(std::vector<base::ProcessId> parent_pids)
      : parent_pids_(parent_pids.begin(), parent_pids.end()) {}

  virtual bool Includes(base::ProcessId pid, base::ProcessId parent_pid) const {
    return parent_pids_.find(parent_pid) != parent_pids_.end();

  const std::set<base::ProcessId> parent_pids_;


ChromeProcessList GetRunningChromeProcesses(base::ProcessId browser_pid) {
  ChromeProcessList result;
  if (browser_pid == static_cast<base::ProcessId>(-1))
    return result;

  ChildProcessFilter filter(browser_pid);
  base::NamedProcessIterator it(chrome::kBrowserProcessExecutableName, &filter);
  while (const base::ProcessEntry* process_entry = it.NextProcessEntry()) {
#if defined(OS_WIN)
#elif defined(OS_POSIX)

#if defined(OS_LINUX)
  // On Linux we might be running with a zygote process for the renderers.
  // Because of that we sweep the list of processes again and pick those which
  // are children of one of the processes that we've already seen.
    ChildProcessFilter filter(result);
    base::NamedProcessIterator it(chrome::kBrowserProcessExecutableName,
    while (const base::ProcessEntry* process_entry = it.NextProcessEntry())
#endif  // defined(OS_LINUX)

#if defined(OS_LINUX) || defined(OS_MACOSX)
  // On Mac OS X we run the subprocesses with a different bundle, and
  // on Linux via /proc/self/exe, so they end up with a different
  // name.  We must collect them in a second pass.
    ChildProcessFilter filter(browser_pid);
    base::NamedProcessIterator it(chrome::kHelperProcessExecutableName,
    while (const base::ProcessEntry* process_entry = it.NextProcessEntry())
#endif  // defined(OS_MACOSX)


  return result;

#if !defined(OS_MACOSX)

size_t ChromeTestProcessMetrics::GetPagefileUsage() {
  return process_metrics_->GetPagefileUsage();

size_t ChromeTestProcessMetrics::GetWorkingSetSize() {
  return process_metrics_->GetWorkingSetSize();

#endif  // !defined(OS_MACOSX)

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