libkern/os/base_private.h

   1 /*
   2  * Copyright (c) 2008-2013 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_APACHE_LICENSE_HEADER_START@
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  * @APPLE_APACHE_LICENSE_HEADER_END@
  19  */
  20
  21 #ifndef __OS_BASE_PRIVATE__
  22 #define __OS_BASE_PRIVATE__
  23
  24 #ifndef KERNEL
  25 #include <TargetConditionals.h>
  26 #endif
  27 #include <os/base.h>
  28
  29 #ifndef os_fastpath
  30 #define os_fastpath(x) ((__typeof__(x))OS_EXPECT((long)(x), ~0l))
  31 #endif
  32 #ifndef os_slowpath
  33 #define os_slowpath(x) ((__typeof__(x))OS_EXPECT((long)(x), 0l))
  34 #endif
  35 #ifndef os_likely
  36 #define os_likely(x) OS_EXPECT(!!(x), 1)
  37 #endif
  38 #ifndef os_unlikely
  39 #define os_unlikely(x) OS_EXPECT(!!(x), 0)
  40 #endif
  41
  42
  43 #endif // __OS_BASE_PRIVATE__