src/data_internal.h

   1 /*
   2  * Copyright (c) 2009-2011 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_DATA_INTERNAL__
  28 #define __DISPATCH_DATA_INTERNAL__
  29
  30 #ifndef __DISPATCH_INDIRECT__
  31 #error "Please #include <dispatch/dispatch.h> instead of this file directly."
  32 #include <dispatch/base.h> // for HeaderDoc
  33 #endif
  34
  35 struct dispatch_data_vtable_s {
  36         DISPATCH_VTABLE_HEADER(dispatch_data_s);
  37 };
  38
  39 extern const struct dispatch_data_vtable_s _dispatch_data_vtable;
  40
  41 typedef struct range_record_s {
  42         void* data_object;
  43         size_t from;
  44         size_t length;
  45 } range_record;
  46
  47 struct dispatch_data_s {
  48         DISPATCH_STRUCT_HEADER(dispatch_data_s, dispatch_data_vtable_s);
  49 #if DISPATCH_DATA_MOVABLE
  50         unsigned int locked;
  51 #endif
  52         bool leaf;
  53         dispatch_block_t destructor;
  54         size_t size, num_records;
  55         range_record records[];
  56 };
  57
  58 #endif // __DISPATCH_DATA_INTERNAL__