Split worker_pool.cc into worker_pool_linux.cc and worker_pool_win.cc

base/worker_pool.cc

-// Copyright (c) 2006-2008 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/worker_pool.h"
-
-#include "base/task.h"
-
-// TODO(dsh): Split this file into worker_pool_win.cc and worker_pool_posix.cc.
-#if defined(OS_WIN)
-
-namespace {
-
-DWORD CALLBACK WorkItemCallback(void* param) {
-  Task* task = static_cast<Task*>(param);
-  task->Run();
-  delete task;
-  return 0;
-}
-
-}  // namespace
-
-bool WorkerPool::PostTask(const tracked_objects::Location& from_here,
-                          Task* task, bool task_is_slow) {
-  task->SetBirthPlace(from_here);
-
-  ULONG flags = 0;
-  if (task_is_slow)
-    flags |= WT_EXECUTELONGFUNCTION;
-
-  if (!QueueUserWorkItem(WorkItemCallback, task, flags)) {
-    DLOG(ERROR) << "QueueUserWorkItem failed: " << GetLastError();
-    delete task;
-    return false;
-  }
-
-  return true;
-}
-
-#elif defined(OS_LINUX)
-
-namespace {
-
-void* PThreadCallback(void* param) {
-  Task* task = static_cast<Task*>(param);
-  task->Run();
-  delete task;
-  return 0;
-}
-
-}  // namespace
-
-bool WorkerPool::PostTask(const tracked_objects::Location& from_here,
-                          Task* task, bool task_is_slow) {
-  task->SetBirthPlace(from_here);
-
-  pthread_t thread;
-  pthread_attr_t attr;
-
-  // POSIX does not have a worker thread pool implementation.  For now we just
-  // create a thread for each task, and ignore |task_is_slow|.
-  // TODO(dsh): Implement thread reuse.
-  pthread_attr_init(&attr);
-  pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-
-  int err = pthread_create(&thread, &attr, PThreadCallback, task);
-  pthread_attr_destroy(&attr);
-  if (err) {
-    DLOG(ERROR) << "pthread_create failed: " << err;
-    delete task;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // OS_LINUX