| /* |
| * Module: sched.h |
| * |
| * Purpose: |
| * Provides an implementation of POSIX realtime extensions |
| * as defined in |
| * |
| * POSIX 1003.1b-1993 (POSIX.1b) |
| * |
| * -------------------------------------------------------------------------- |
| * |
| * Pthreads-win32 - POSIX Threads Library for Win32 |
| * Copyright(C) 1998 John E. Bossom |
| * Copyright(C) 1999,2005 Pthreads-win32 contributors |
| * |
| * Contact Email: rpj@callisto.canberra.edu.au |
| * |
| * The current list of contributors is contained |
| * in the file CONTRIBUTORS included with the source |
| * code distribution. The list can also be seen at the |
| * following World Wide Web location: |
| * http://sources.redhat.com/pthreads-win32/contributors.html |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library in the file COPYING.LIB; |
| * if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
| */ |
| #ifndef _SCHED_H |
| #define _SCHED_H |
| |
| #undef PTW32_LEVEL |
| |
| #if defined(_POSIX_SOURCE) |
| #define PTW32_LEVEL 0 |
| /* Early POSIX */ |
| #endif |
| |
| #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309 |
| #undef PTW32_LEVEL |
| #define PTW32_LEVEL 1 |
| /* Include 1b, 1c and 1d */ |
| #endif |
| |
| #if defined(INCLUDE_NP) |
| #undef PTW32_LEVEL |
| #define PTW32_LEVEL 2 |
| /* Include Non-Portable extensions */ |
| #endif |
| |
| #define PTW32_LEVEL_MAX 3 |
| |
| #if !defined(PTW32_LEVEL) |
| #define PTW32_LEVEL PTW32_LEVEL_MAX |
| /* Include everything */ |
| #endif |
| |
| |
| #if __GNUC__ && ! defined (__declspec) |
| # error Please upgrade your GNU compiler to one that supports __declspec. |
| #endif |
| |
| /* |
| * When building the DLL code, you should define PTW32_BUILD so that |
| * the variables/functions are exported correctly. When using the DLL, |
| * do NOT define PTW32_BUILD, and then the variables/functions will |
| * be imported correctly. |
| */ |
| #ifndef PTW32_STATIC_LIB |
| # ifdef PTW32_BUILD |
| # define PTW32_DLLPORT __declspec (dllexport) |
| # else |
| # define PTW32_DLLPORT __declspec (dllimport) |
| # endif |
| #else |
| # define PTW32_DLLPORT |
| #endif |
| |
| /* |
| * This is a duplicate of what is in the autoconf config.h, |
| * which is only used when building the pthread-win32 libraries. |
| */ |
| |
| #ifndef PTW32_CONFIG_H |
| # if defined(WINCE) |
| # define NEED_ERRNO |
| # define NEED_SEM |
| # endif |
| # if defined(_UWIN) || defined(__MINGW32__) |
| # define HAVE_MODE_T |
| # endif |
| #endif |
| |
| /* |
| * |
| */ |
| |
| #if PTW32_LEVEL >= PTW32_LEVEL_MAX |
| #ifdef NEED_ERRNO |
| #include "need_errno.h" |
| #else |
| #include <errno.h> |
| #endif |
| #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */ |
| |
| #if defined(__MINGW32__) || defined(_UWIN) |
| #if PTW32_LEVEL >= PTW32_LEVEL_MAX |
| /* For pid_t */ |
| # include <sys/types.h> |
| /* Required by Unix 98 */ |
| # include <time.h> |
| #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */ |
| #else |
| typedef int pid_t; |
| #endif |
| |
| /* Thread scheduling policies */ |
| |
| enum { |
| SCHED_OTHER = 0, |
| SCHED_FIFO, |
| SCHED_RR, |
| SCHED_MIN = SCHED_OTHER, |
| SCHED_MAX = SCHED_RR |
| }; |
| |
| struct sched_param { |
| int sched_priority; |
| }; |
| |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif /* __cplusplus */ |
| |
| PTW32_DLLPORT int __cdecl sched_yield (void); |
| |
| PTW32_DLLPORT int __cdecl sched_get_priority_min (int policy); |
| |
| PTW32_DLLPORT int __cdecl sched_get_priority_max (int policy); |
| |
| PTW32_DLLPORT int __cdecl sched_setscheduler (pid_t pid, int policy); |
| |
| PTW32_DLLPORT int __cdecl sched_getscheduler (pid_t pid); |
| |
| /* |
| * Note that this macro returns ENOTSUP rather than |
| * ENOSYS as might be expected. However, returning ENOSYS |
| * should mean that sched_get_priority_{min,max} are |
| * not implemented as well as sched_rr_get_interval. |
| * This is not the case, since we just don't support |
| * round-robin scheduling. Therefore I have chosen to |
| * return the same value as sched_setscheduler when |
| * SCHED_RR is passed to it. |
| */ |
| #define sched_rr_get_interval(_pid, _interval) \ |
| ( errno = ENOTSUP, (int) -1 ) |
| |
| |
| #ifdef __cplusplus |
| } /* End of extern "C" */ |
| #endif /* __cplusplus */ |
| |
| #undef PTW32_LEVEL |
| #undef PTW32_LEVEL_MAX |
| |
| #endif /* !_SCHED_H */ |
| |