5 * Provides an implementation of POSIX realtime extensions
8 * POSIX 1003.1b-1993 (POSIX.1b)
10 * --------------------------------------------------------------------------
12 * Pthreads-win32 - POSIX Threads Library for Win32
13 * Copyright(C) 1998 John E. Bossom
14 * Copyright(C) 1999,2003 Pthreads-win32 contributors
16 * Contact Email: rpj@callisto.canberra.edu.au
18 * The current list of contributors is contained
19 * in the file CONTRIBUTORS included with the source
20 * code distribution. The list can also be seen at the
21 * following World Wide Web location:
22 * http://sources.redhat.com/pthreads-win32/contributors.html
24 * This library is free software; you can redistribute it and/or
25 * modify it under the terms of the GNU Lesser General Public
26 * License as published by the Free Software Foundation; either
27 * version 2 of the License, or (at your option) any later version.
29 * This library is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
32 * Lesser General Public License for more details.
34 * You should have received a copy of the GNU Lesser General Public
35 * License along with this library in the file COPYING.LIB;
36 * if not, write to the Free Software Foundation, Inc.,
37 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
44 #if defined(_POSIX_SOURCE)
49 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309
52 /* Include 1b, 1c and 1d */
55 #if defined(INCLUDE_NP)
58 /* Include Non-Portable extensions */
61 #define PTW32_LEVEL_MAX 3
63 #if !defined(PTW32_LEVEL)
64 #define PTW32_LEVEL PTW32_LEVEL_MAX
65 /* Include everything */
69 #if __GNUC__ && ! defined (__declspec)
70 # error Please upgrade your GNU compiler to one that supports __declspec.
74 * When building the DLL code, you should define PTW32_BUILD so that
75 * the variables/functions are exported correctly. When using the DLL,
76 * do NOT define PTW32_BUILD, and then the variables/functions will
77 * be imported correctly.
80 # define PTW32_DLLPORT __declspec (dllexport)
82 # define PTW32_DLLPORT __declspec (dllimport)
86 * This is a duplicate of what is in the autoconf config.h,
87 * which is only used when building the pthread-win32 libraries.
90 #ifndef PTW32_CONFIG_H
95 # if defined(_UWIN) || defined(__MINGW32__)
104 #if PTW32_LEVEL >= PTW32_LEVEL_MAX
106 #include "need_errno.h"
110 #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
112 #if defined(__MINGW32__) || defined(_UWIN)
113 #if PTW32_LEVEL >= PTW32_LEVEL_MAX
115 # include <sys/types.h>
116 /* Required by Unix 98 */
118 #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
123 /* Thread scheduling policies */
129 SCHED_MIN = SCHED_OTHER,
140 #endif /* __cplusplus */
142 PTW32_DLLPORT int sched_yield (void);
144 PTW32_DLLPORT int sched_get_priority_min (int policy);
146 PTW32_DLLPORT int sched_get_priority_max (int policy);
148 PTW32_DLLPORT int sched_setscheduler (pid_t pid, int policy);
150 PTW32_DLLPORT int sched_getscheduler (pid_t pid);
153 * Note that this macro returns ENOTSUP rather than
154 * ENOSYS as might be expected. However, returning ENOSYS
155 * should mean that sched_get_priority_{min,max} are
156 * not implemented as well as sched_rr_get_interval.
157 * This is not the case, since we just don't support
158 * round-robin scheduling. Therefore I have chosen to
159 * return the same value as sched_setscheduler when
160 * SCHED_RR is passed to it.
162 #define sched_rr_get_interval(_pid, _interval) \
163 ( errno = ENOTSUP, (int) -1 )
167 } /* End of extern "C" */
168 #endif /* __cplusplus */
171 #undef PTW32_LEVEL_MAX
173 #endif /* !_SCHED_H */