1 /*
2 * pthread_attr_setstackaddr.c
3 *
4 * Description:
5 * This translation unit implements operations on thread attribute objects.
6 *
7 * --------------------------------------------------------------------------
8 *
9 * Pthreads-win32 - POSIX Threads Library for Win32
10 * Copyright(C) 1998 John E. Bossom
11 * Copyright(C) 1999,2005 Pthreads-win32 contributors
12 *
13 * Contact Email: rpj@callisto.canberra.edu.au
14 *
15 * The current list of contributors is contained
16 * in the file CONTRIBUTORS included with the source
17 * code distribution. The list can also be seen at the
18 * following World Wide Web location:
19 * http://sources.redhat.com/pthreads-win32/contributors.html
20 *
21 * This library is free software; you can redistribute it and/or
22 * modify it under the terms of the GNU Lesser General Public
23 * License as published by the Free Software Foundation; either
24 * version 2 of the License, or (at your option) any later version.
25 *
26 * This library is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
29 * Lesser General Public License for more details.
30 *
31 * You should have received a copy of the GNU Lesser General Public
32 * License along with this library in the file COPYING.LIB;
33 * if not, write to the Free Software Foundation, Inc.,
34 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
35 */
36
37 #include "pthread.h"
38 #include "implement.h"
39
40
41 int
pthread_attr_setstackaddr(pthread_attr_t * attr,void * stackaddr)42 pthread_attr_setstackaddr (pthread_attr_t * attr, void *stackaddr)
43 /*
44 * ------------------------------------------------------
45 * DOCPUBLIC
46 * Threads created with 'attr' will run on the stack
47 * starting at 'stackaddr'.
48 * Stack must be at least PTHREAD_STACK_MIN bytes.
49 *
50 * PARAMETERS
51 * attr
52 * pointer to an instance of pthread_attr_t
53 *
54 * stackaddr
55 * the address of the stack to use
56 *
57 *
58 * DESCRIPTION
59 * Threads created with 'attr' will run on the stack
60 * starting at 'stackaddr'.
61 * Stack must be at least PTHREAD_STACK_MIN bytes.
62 *
63 * NOTES:
64 * 1) Function supported only if this macro is
65 * defined:
66 *
67 * _POSIX_THREAD_ATTR_STACKADDR
68 *
69 * 2) Create only one thread for each stack
70 * address..
71 *
72 * 3) Ensure that stackaddr is aligned.
73 *
74 * RESULTS
75 * 0 successfully set stack address,
76 * EINVAL 'attr' is invalid
77 * ENOSYS function not supported
78 *
79 * ------------------------------------------------------
80 */
81 {
82 #if defined( _POSIX_THREAD_ATTR_STACKADDR )
83
84 if (ptw32_is_attr (attr) != 0)
85 {
86 return EINVAL;
87 }
88
89 (*attr)->stackaddr = stackaddr;
90 return 0;
91
92 #else
93
94 return ENOSYS;
95
96 #endif /* _POSIX_THREAD_ATTR_STACKADDR */
97 }
98