1 /*
2 * pthread_attr_getstackaddr.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 /* ignore warning "unreferenced formal parameter" */
41 #if defined(_MSC_VER)
42 #pragma warning( disable : 4100 )
43 #endif
44
45 int
pthread_attr_getstackaddr(const pthread_attr_t * attr,void ** stackaddr)46 pthread_attr_getstackaddr (const pthread_attr_t * attr, void **stackaddr)
47 /*
48 * ------------------------------------------------------
49 * DOCPUBLIC
50 * This function determines the address of the stack
51 * on which threads created with 'attr' will run.
52 *
53 * PARAMETERS
54 * attr
55 * pointer to an instance of pthread_attr_t
56 *
57 * stackaddr
58 * pointer into which is returned the stack address.
59 *
60 *
61 * DESCRIPTION
62 * This function determines the address of the stack
63 * on which threads created with 'attr' will run.
64 *
65 * NOTES:
66 * 1) Function supported only if this macro is
67 * defined:
68 *
69 * _POSIX_THREAD_ATTR_STACKADDR
70 *
71 * 2) Create only one thread for each stack
72 * address..
73 *
74 * RESULTS
75 * 0 successfully retreived 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 *stackaddr = (*attr)->stackaddr;
90 return 0;
91
92 #else
93
94 return ENOSYS;
95
96 #endif /* _POSIX_THREAD_ATTR_STACKADDR */
97 }
98