diff options
Diffstat (limited to 'pthreads/sched.h')
| -rw-r--r-- | pthreads/sched.h | 123 |
1 files changed, 110 insertions, 13 deletions
diff --git a/pthreads/sched.h b/pthreads/sched.h index f36a97a66..0a3282878 100644 --- a/pthreads/sched.h +++ b/pthreads/sched.h @@ -3,7 +3,7 @@ * * Purpose: * Provides an implementation of POSIX realtime extensions - * as defined in + * as defined in * * POSIX 1003.1b-1993 (POSIX.1b) * @@ -11,26 +11,27 @@ * * 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 - * + * Copyright(C) 1999,2012 Pthreads-win32 contributors + * + * Homepage1: http://sourceware.org/pthreads-win32/ + * Homepage2: http://sourceforge.net/projects/pthreads4w/ + * * 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., @@ -39,6 +40,15 @@ #if !defined(_SCHED_H) #define _SCHED_H +#if defined(_MSC_VER) +# if _MSC_VER < 1300 +# define PTW32_CONFIG_MSVC6 +# endif +# if _MSC_VER < 1400 +# define PTW32_CONFIG_MSVC7 +# endif +#endif + #undef PTW32_SCHED_LEVEL #if defined(_POSIX_SOURCE) @@ -87,6 +97,20 @@ #endif /* + * The Open Watcom C/C++ compiler uses a non-standard calling convention + * that passes function args in registers unless __cdecl is explicitly specified + * in exposed function prototypes. + * + * We force all calls to cdecl even though this could slow Watcom code down + * slightly. If you know that the Watcom compiler will be used to build both + * the DLL and application, then you can probably define this as a null string. + * Remember that sched.h (this file) is used for both the DLL and application builds. + */ +#if !defined(PTW32_CDECL) +# define PTW32_CDECL __cdecl +#endif + +/* * This is a duplicate of what is in the autoconf config.h, * which is only used when building the pthread-win32 libraries. */ @@ -108,6 +132,8 @@ * */ +#include <stdlib.h> + #if PTW32_SCHED_LEVEL >= PTW32_SCHED_LEVEL_MAX #if defined(NEED_ERRNO) #include "need_errno.h" @@ -129,6 +155,14 @@ typedef int pid_t; #endif +/* + * Microsoft VC++6.0 lacks these *_PTR types + */ +#if defined(_MSC_VER) && _MSC_VER < 1300 && !defined(PTW32_HAVE_DWORD_PTR) +typedef unsigned long ULONG_PTR; +typedef ULONG_PTR DWORD_PTR; +#endif + /* Thread scheduling policies */ enum { @@ -143,20 +177,83 @@ struct sched_param { int sched_priority; }; +/* + * CPU affinity + * + * cpu_set_t: + * Considered opaque but cannot be an opaque pointer + * due to the need for compatibility with GNU systems + * and sched_setaffinity() et.al. which include the + * cpusetsize parameter "normally set to sizeof(cpu_set_t)". + */ + +#define CPU_SETSIZE (sizeof(size_t)*8) + +#define CPU_COUNT(setptr) (_sched_affinitycpucount(setptr)) + +#define CPU_ZERO(setptr) (_sched_affinitycpuzero(setptr)) + +#define CPU_SET(cpu, setptr) (_sched_affinitycpuset((cpu),(setptr))) + +#define CPU_CLR(cpu, setptr) (_sched_affinitycpuclr((cpu),(setptr))) + +#define CPU_ISSET(cpu, setptr) (_sched_affinitycpuisset((cpu),(setptr))) + +#define CPU_AND(destsetptr, srcset1ptr, srcset2ptr) (_sched_affinitycpuand((destsetptr),(srcset1ptr),(srcset2ptr))) + +#define CPU_OR(destsetptr, srcset1ptr, srcset2ptr) (_sched_affinitycpuor((destsetptr),(srcset1ptr),(srcset2ptr))) + +#define CPU_XOR(destsetptr, srcset1ptr, srcset2ptr) (_sched_affinitycpuxor((destsetptr),(srcset1ptr),(srcset2ptr))) + +#define CPU_EQUAL(set1ptr, set2ptr) (_sched_affinitycpuequal((set1ptr),(set2ptr))) + +typedef union +{ + char cpuset[CPU_SETSIZE/8]; + size_t _align; +} cpu_set_t; + #if defined(__cplusplus) extern "C" { #endif /* __cplusplus */ -PTW32_DLLPORT int __cdecl sched_yield (void); +PTW32_DLLPORT int PTW32_CDECL sched_yield (void); + +PTW32_DLLPORT int PTW32_CDECL sched_get_priority_min (int policy); + +PTW32_DLLPORT int PTW32_CDECL sched_get_priority_max (int policy); + +PTW32_DLLPORT int PTW32_CDECL sched_setscheduler (pid_t pid, int policy); + +PTW32_DLLPORT int PTW32_CDECL sched_getscheduler (pid_t pid); + +/* Compatibility with Linux - not standard */ + +PTW32_DLLPORT int PTW32_CDECL sched_setaffinity (pid_t pid, size_t cpusetsize, cpu_set_t *mask); + +PTW32_DLLPORT int PTW32_CDECL sched_getaffinity (pid_t pid, size_t cpusetsize, cpu_set_t *mask); + +/* + * Support routines and macros for cpu_set_t + */ +PTW32_DLLPORT int PTW32_CDECL _sched_affinitycpucount (const cpu_set_t *set); + +PTW32_DLLPORT void PTW32_CDECL _sched_affinitycpuzero (cpu_set_t *pset); + +PTW32_DLLPORT void PTW32_CDECL _sched_affinitycpuset (int cpu, cpu_set_t *pset); + +PTW32_DLLPORT void PTW32_CDECL _sched_affinitycpuclr (int cpu, cpu_set_t *pset); + +PTW32_DLLPORT int PTW32_CDECL _sched_affinitycpuisset (int cpu, const cpu_set_t *pset); -PTW32_DLLPORT int __cdecl sched_get_priority_min (int policy); +PTW32_DLLPORT void PTW32_CDECL _sched_affinitycpuand(cpu_set_t *pdestset, const cpu_set_t *psrcset1, const cpu_set_t *psrcset2); -PTW32_DLLPORT int __cdecl sched_get_priority_max (int policy); +PTW32_DLLPORT void PTW32_CDECL _sched_affinitycpuor(cpu_set_t *pdestset, const cpu_set_t *psrcset1, const cpu_set_t *psrcset2); -PTW32_DLLPORT int __cdecl sched_setscheduler (pid_t pid, int policy); +PTW32_DLLPORT void PTW32_CDECL _sched_affinitycpuxor(cpu_set_t *pdestset, const cpu_set_t *psrcset1, const cpu_set_t *psrcset2); -PTW32_DLLPORT int __cdecl sched_getscheduler (pid_t pid); +PTW32_DLLPORT int PTW32_CDECL _sched_affinitycpuequal (const cpu_set_t *pset1, const cpu_set_t *pset2); /* * Note that this macro returns ENOTSUP rather than |