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+/*
+ * 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) 1999,2003 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.
+ */
+#ifdef PTW32_BUILD
+# define PTW32_DLLPORT __declspec (dllexport)
+#else
+# define PTW32_DLLPORT __declspec (dllimport)
+#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 */
+