base/threading/platform_thread_internal_posix.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef BASE_THREADING_PLATFORM_THREAD_INTERNAL_POSIX_H_
   6 #define BASE_THREADING_PLATFORM_THREAD_INTERNAL_POSIX_H_
   7
   8 #include "base/threading/platform_thread.h"
   9
  10 namespace base {
  11
  12 namespace internal {
  13
  14 struct ThreadPriorityToNiceValuePair {
  15   ThreadPriority priority;
  16   int nice_value;
  17 };
  18 extern const ThreadPriorityToNiceValuePair kThreadPriorityToNiceValueMap[4];
  19
  20 // Returns the nice value matching |priority| based on the platform-specific
  21 // implementation of kThreadPriorityToNiceValueMap.
  22 int ThreadPriorityToNiceValue(ThreadPriority priority);
  23
  24 // Allows platform specific tweaks to the generic POSIX solution for
  25 // SetThreadPriority. Returns true if the platform-specific implementation
  26 // handled this |priority| change, false if the generic implementation should
  27 // instead proceed.
  28 bool HandleSetThreadPriorityForPlatform(PlatformThreadHandle handle,
  29                                         ThreadPriority priority);
  30
  31 }  // namespace internal
  32
  33 }  // namespace base
  34
  35 #endif  // BASE_THREADING_PLATFORM_THREAD_INTERNAL_POSIX_H_