src/introspection_internal.h

   1 /*
   2  * Copyright (c) 2010-2013 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 /*
  22  * IMPORTANT: This header file describes INTERNAL interfaces to libdispatch
  23  * which are subject to change in future releases of Mac OS X. Any applications
  24  * relying on these interfaces WILL break.
  25  */
  26
  27 #ifndef __DISPATCH_INTROSPECTION_INTERNAL__
  28 #define __DISPATCH_INTROSPECTION_INTERNAL__
  29
  30 #if DISPATCH_INTROSPECTION
  31
  32 #define DISPATCH_INTROSPECTION_QUEUE_LIST \
  33                 TAILQ_ENTRY(dispatch_queue_s) diq_list
  34 #define DISPATCH_INTROSPECTION_QUEUE_LIST_SIZE \
  35                 sizeof(TAILQ_ENTRY(dispatch_queue_s))
  36
  37 void _dispatch_introspection_init(void);
  38 void _dispatch_introspection_thread_add(void);
  39 dispatch_queue_t _dispatch_introspection_queue_create(dispatch_queue_t dq);
  40 void _dispatch_introspection_queue_dispose(dispatch_queue_t dq);
  41 void _dispatch_introspection_queue_item_enqueue(dispatch_queue_t dq,
  42                 dispatch_object_t dou);
  43 void _dispatch_introspection_queue_item_dequeue(dispatch_queue_t dq,
  44                 dispatch_object_t dou);
  45 void _dispatch_introspection_callout_entry(void *ctxt, dispatch_function_t f);
  46 void _dispatch_introspection_callout_return(void *ctxt, dispatch_function_t f);
  47
  48 #if !__OBJC2__
  49
  50 DISPATCH_ALWAYS_INLINE
  51 static inline void
  52 _dispatch_introspection_queue_push_list(dispatch_queue_t dq,
  53                 dispatch_object_t head, dispatch_object_t tail) {
  54         struct dispatch_object_s *dou = head._do;
  55         do {
  56                 _dispatch_introspection_queue_item_enqueue(dq, dou);
  57         } while (dou != tail._do && (dou = dou->do_next));
  58 };
  59
  60 DISPATCH_ALWAYS_INLINE
  61 static inline void
  62 _dispatch_introspection_queue_push(dispatch_queue_t dq, dispatch_object_t dou) {
  63         _dispatch_introspection_queue_item_enqueue(dq, dou);
  64 };
  65
  66 DISPATCH_ALWAYS_INLINE
  67 static inline void
  68 _dispatch_introspection_queue_pop(dispatch_queue_t dq, dispatch_object_t dou) {
  69         _dispatch_introspection_queue_item_dequeue(dq, dou);
  70 };
  71
  72 #endif
  73
  74 #else
  75
  76 #define DISPATCH_INTROSPECTION_QUEUE_LIST
  77 #define DISPATCH_INTROSPECTION_QUEUE_LIST_SIZE 0
  78
  79 #define _dispatch_introspection_init()
  80 #define _dispatch_introspection_thread_add()
  81 #define _dispatch_introspection_thread_remove()
  82
  83 DISPATCH_ALWAYS_INLINE
  84 static inline dispatch_queue_t
  85 _dispatch_introspection_queue_create(dispatch_queue_t dq) { return dq; }
  86
  87 DISPATCH_ALWAYS_INLINE
  88 static inline void
  89 _dispatch_introspection_queue_dispose(dispatch_queue_t dq) { (void)dq; }
  90
  91 DISPATCH_ALWAYS_INLINE
  92 static inline void
  93 _dispatch_introspection_queue_push_list(dispatch_queue_t dq DISPATCH_UNUSED,
  94                 dispatch_object_t head DISPATCH_UNUSED,
  95                 dispatch_object_t tail DISPATCH_UNUSED) {}
  96
  97 DISPATCH_ALWAYS_INLINE
  98 static inline void
  99 _dispatch_introspection_queue_push(dispatch_queue_t dq DISPATCH_UNUSED,
 100                 dispatch_object_t dou DISPATCH_UNUSED) {}
 101
 102 DISPATCH_ALWAYS_INLINE
 103 static inline void
 104 _dispatch_introspection_queue_pop(dispatch_queue_t dq DISPATCH_UNUSED,
 105                 dispatch_object_t dou DISPATCH_UNUSED) {}
 106
 107 DISPATCH_ALWAYS_INLINE
 108 static inline void
 109 _dispatch_introspection_callout_entry(void *ctxt DISPATCH_UNUSED,
 110                 dispatch_function_t f DISPATCH_UNUSED) {}
 111
 112 DISPATCH_ALWAYS_INLINE
 113 static inline void
 114 _dispatch_introspection_callout_return(void *ctxt DISPATCH_UNUSED,
 115                 dispatch_function_t f DISPATCH_UNUSED) {}
 116
 117 #endif // DISPATCH_INTROSPECTION
 118
 119 #endif // __DISPATCH_INTROSPECTION_INTERNAL__