dyld-43.tar.gz
[apple/dyld.git] / src / dyldLibSystemThreadHelpers.h
1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
2 *
3 * Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
4 *
5 * @APPLE_LICENSE_HEADER_START@
6 *
7 * This file contains Original Code and/or Modifications of Original Code
8 * as defined in and that are subject to the Apple Public Source License
9 * Version 2.0 (the 'License'). You may not use this file except in
10 * compliance with the License. Please obtain a copy of the License at
11 * http://www.opensource.apple.com/apsl/ and read it before using this
12 * file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
19 * Please see the License for the specific language governing rights and
20 * limitations under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24
25
26 #ifndef __DYLDLIBSYSTEMHELPERS__
27 #define __DYLDLIBSYSTEMHELPERS__
28
29 #include <stdint.h>
30
31
32 namespace dyld {
33 //
34 // This file contains the synchronization utilities used by dyld to be thread safe.
35 // This struct is implemented in in libSystem (where pthreads is available)
36 // and passed to dyld to use.
37 //
38 struct ThreadingHelpers
39 {
40 uintptr_t version;
41 void (*lockForReading)();
42 void (*unlockForReading)();
43 char* (*getThreadBufferFor_dlerror)(uint32_t sizeRequired);
44 };
45 };
46
47
48
49
50
51 #endif // __DYLDLIBSYSTEMHELPERS__
52