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
41int
42pthread_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