src/os/lock_internal.h

   1 /*
   2  * Copyright (c) 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_LOCK_INTERNAL__
  22 #define __OS_LOCK_INTERNAL__
  23
  24 #define OS_LOCK_S_INTERNAL(type) _os_lock_##type##_s
  25 #define OS_LOCK_T_INTERNAL(type) _os_lock_##type##_t
  26 #define OS_LOCK_STRUCT_INTERNAL(type) struct OS_LOCK_S_INTERNAL(type)
  27 #define OS_LOCK_T_MEMBER(type)  \
  28                 OS_LOCK_STRUCT(type) *_osl_opaque_##type; \
  29                 OS_LOCK_STRUCT_INTERNAL(type) *_osl_##type
  30
  31 #define OS_LOCK_STRUCT_DECL_INTERNAL(type, ...) \
  32                 typedef struct OS_LOCK_S_INTERNAL(type) { \
  33                         OS_LOCK_TYPE_STRUCT(type) * const osl_type; \
  34                         __VA_ARGS__ \
  35                 } OS_LOCK_S_INTERNAL(type); \
  36                 typedef OS_LOCK_STRUCT_INTERNAL(type) *OS_LOCK_T_INTERNAL(type)
  37
  38 #define OS_LOCK_METHODS_DECL(type) \
  39                 void _os_lock_##type##_lock(OS_LOCK_T_INTERNAL(type)); \
  40                 bool _os_lock_##type##_trylock(OS_LOCK_T_INTERNAL(type)); \
  41                 void _os_lock_##type##_unlock(OS_LOCK_T_INTERNAL(type))
  42
  43 #define OS_LOCK_TYPE_STRUCT_DECL(type) \
  44                 OS_LOCK_TYPE_STRUCT(type) { \
  45                         const char *osl_kind; \
  46                         void (*osl_lock)(os_lock_t); \
  47                         bool (*osl_trylock)(os_lock_t); \
  48                         void (*osl_unlock)(os_lock_t); \
  49                 } OS_LOCK_TYPE_REF(type)
  50
  51 #define OS_LOCK_TYPE_INSTANCE(type) \
  52                 OS_LOCK_TYPE_STRUCT_DECL(type) = { \
  53                         .osl_kind = #type, \
  54                         .osl_lock = _os_lock_##type##_lock, \
  55                         .osl_trylock = _os_lock_##type##_trylock, \
  56                         .osl_unlock = _os_lock_##type##_unlock, \
  57                 }
  58
  59 #include "os/internal.h"
  60
  61 #endif // __OS_LOCK_INTERNAL__