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process_util.cc

// 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 "base/process_util.h"

namespace base {

int GetProcessCount(const std::wstring& executable_name,
                    const ProcessFilter* filter) {
  int count = 0;
  NamedProcessIterator iter(executable_name, filter);
  while (iter.NextProcessEntry())
    ++count;
  return count;
}

bool KillProcesses(const std::wstring& executable_name, int exit_code,
                   const ProcessFilter* filter) {
  bool result = true;
  NamedProcessIterator iter(executable_name, filter);
  while (const ProcessEntry* entry = iter.NextProcessEntry()) {
#if defined(OS_WIN)
    result &= KillProcessById(entry->pid(), exit_code, true);
#else
    result &= KillProcess(entry->pid(), exit_code, true);
#endif
  }
  return result;
}

const ProcessEntry* ProcessIterator::NextProcessEntry() {
  bool result = false;
  do {
    result = CheckForNextProcess();
  } while (result && !IncludeEntry());
  if (result)
    return &entry_;
  return NULL;
}

bool ProcessIterator::IncludeEntry() {
  return !filter_ || filter_->Includes(entry_);
}

ProcessIterator::ProcessEntries ProcessIterator::Snapshot() {
  ProcessEntries found;
  while (const ProcessEntry* process_entry = NextProcessEntry()) {
    found.push_back(*process_entry);
  }
  return found;
}

NamedProcessIterator::NamedProcessIterator(const std::wstring& executable_name,
                                           const ProcessFilter* filter)
    : ProcessIterator(filter),
      executable_name_(executable_name) {
}

NamedProcessIterator::~NamedProcessIterator() {
}

}  // namespace base

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