1 /* 2 * 3 Copyright 1993, 1998 The Open Group 4 5 Permission to use, copy, modify, distribute, and sell this software and its 6 documentation for any purpose is hereby granted without fee, provided that 7 the above copyright notice appear in all copies and that both that 8 copyright notice and this permission notice appear in supporting 9 documentation. 10 11 The above copyright notice and this permission notice shall be included in 12 all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 21 Except as contained in this notice, the name of The Open Group shall not be 22 used in advertising or otherwise to promote the sale, use or other dealings 23 in this Software without prior written authorization from The Open Group. 24 * * 25 */ 26 27 #ifndef _XTHREADS_H_ 28 # define _XTHREADS_H_ 29 30 /* Redefine these to XtMalloc/XtFree or whatever you want before including 31 * this header file. 32 */ 33 # ifndef xmalloc 34 # define xmalloc malloc 35 # endif 36 # ifndef xfree 37 # define xfree free 38 # endif 39 40 # ifdef CTHREADS 41 # include <cthreads.h> 42 typedef cthread_t xthread_t; 43 typedef struct condition xcondition_rec; 44 typedef struct mutex xmutex_rec; 45 # define xthread_init() cthread_init() 46 # define xthread_self cthread_self 47 # define xthread_fork(func,closure) cthread_fork(func,closure) 48 # define xthread_yield() cthread_yield() 49 # define xthread_exit(v) cthread_exit(v) 50 # define xthread_set_name(t,str) cthread_set_name(t,str) 51 # define xmutex_init(m) mutex_init(m) 52 # define xmutex_clear(m) mutex_clear(m) 53 # define xmutex_lock(m) mutex_lock(m) 54 # define xmutex_unlock(m) mutex_unlock(m) 55 # define xmutex_set_name(m,str) mutex_set_name(m,str) 56 # define xcondition_init(cv) condition_init(cv) 57 # define xcondition_clear(cv) condition_clear(cv) 58 # define xcondition_wait(cv,m) condition_wait(cv,m) 59 # define xcondition_signal(cv) condition_signal(cv) 60 # define xcondition_broadcast(cv) condition_broadcast(cv) 61 # define xcondition_set_name(cv,str) condition_set_name(cv,str) 62 # else /* !CTHREADS */ 63 # if defined(SVR4) 64 # include <thread.h> 65 # include <synch.h> 66 typedef thread_t xthread_t; 67 typedef thread_key_t xthread_key_t; 68 typedef cond_t xcondition_rec; 69 typedef mutex_t xmutex_rec; 70 # if defined(__UNIXWARE__) 71 extern xthread_t (*_x11_thr_self)(); 72 # define xthread_self (_x11_thr_self) 73 # else 74 # define xthread_self thr_self 75 # endif 76 # define xthread_fork(func,closure) thr_create(NULL,0,func,closure,THR_NEW_LWP|THR_DETACHED,NULL) 77 # define xthread_yield() thr_yield() 78 # define xthread_exit(v) thr_exit(v) 79 # define xthread_key_create(kp,d) thr_keycreate(kp,d) 80 # ifdef __sun 81 # define xthread_key_delete(k) 0 82 # else 83 # define xthread_key_delete(k) thr_keydelete(k) 84 # endif 85 # define xthread_set_specific(k,v) thr_setspecific(k,v) 86 # define xthread_get_specific(k,vp) thr_getspecific(k,vp) 87 # define xmutex_init(m) mutex_init(m,USYNC_THREAD,0) 88 # define xmutex_clear(m) mutex_destroy(m) 89 # define xmutex_lock(m) mutex_lock(m) 90 # define xmutex_unlock(m) mutex_unlock(m) 91 # define xcondition_init(cv) cond_init(cv,USYNC_THREAD,0) 92 # define xcondition_clear(cv) cond_destroy(cv) 93 # define xcondition_wait(cv,m) cond_wait(cv,m) 94 # define xcondition_signal(cv) cond_signal(cv) 95 # define xcondition_broadcast(cv) cond_broadcast(cv) 96 # else /* !SVR4 */ 97 # ifdef WIN32 98 # include <X11/Xwindows.h> 99 typedef DWORD xthread_t; 100 typedef DWORD xthread_key_t; 101 struct _xthread_waiter { 102 HANDLE sem; 103 struct _xthread_waiter *next; 104 }; 105 typedef struct { 106 CRITICAL_SECTION cs; 107 struct _xthread_waiter *waiters; 108 } xcondition_rec; 109 typedef CRITICAL_SECTION xmutex_rec; 110 extern void _Xthread_init(void); 111 # define xthread_init() _Xthread_init() 112 # define xthread_self GetCurrentThreadId 113 # define xthread_fork(func,closure) { \ 114 DWORD _tmptid; \ 115 CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)func, (LPVOID)closure, 0, \ 116 &_tmptid); \ 117 } 118 # define xthread_yield() Sleep(0) 119 # define xthread_exit(v) ExitThread((DWORD)(v)) 120 # define xthread_key_create(kp,d) *(kp) = TlsAlloc() 121 # define xthread_key_delete(k) TlsFree(k) 122 # define xthread_set_specific(k,v) TlsSetValue(k,v) 123 # define xthread_get_specific(k,vp) TlsGetValue(k) 124 # define xmutex_init(m) InitializeCriticalSection(m) 125 # define xmutex_clear(m) DeleteCriticalSection(m) 126 # define _XMUTEX_NESTS 127 # define xmutex_lock(m) EnterCriticalSection(m) 128 # define xmutex_unlock(m) LeaveCriticalSection(m) 129 # define xcondition_init(cv) { \ 130 InitializeCriticalSection(&(cv)->cs); \ 131 (cv)->waiters = NULL; \ 132 } 133 # define xcondition_clear(cv) DeleteCriticalSection(&(cv)->cs) 134 extern struct _xthread_waiter *_Xthread_waiter(); 135 # define xcondition_wait(cv,m) { \ 136 struct _xthread_waiter *_tmpthr = _Xthread_waiter(); \ 137 EnterCriticalSection(&(cv)->cs); \ 138 _tmpthr->next = (cv)->waiters; \ 139 (cv)->waiters = _tmpthr; \ 140 LeaveCriticalSection(&(cv)->cs); \ 141 LeaveCriticalSection(m); \ 142 WaitForSingleObject(_tmpthr->sem, INFINITE); \ 143 EnterCriticalSection(m); \ 144 } 145 # define xcondition_signal(cv) { \ 146 EnterCriticalSection(&(cv)->cs); \ 147 if ((cv)->waiters) { \ 148 ReleaseSemaphore((cv)->waiters->sem, 1, NULL); \ 149 (cv)->waiters = (cv)->waiters->next; \ 150 } \ 151 LeaveCriticalSection(&(cv)->cs); \ 152 } 153 # define xcondition_broadcast(cv) { \ 154 struct _xthread_waiter *_tmpthr; \ 155 EnterCriticalSection(&(cv)->cs); \ 156 for (_tmpthr = (cv)->waiters; _tmpthr; _tmpthr = _tmpthr->next) \ 157 ReleaseSemaphore(_tmpthr->sem, 1, NULL); \ 158 (cv)->waiters = NULL; \ 159 LeaveCriticalSection(&(cv)->cs); \ 160 } 161 # else /* !WIN32 */ 162 # ifdef USE_TIS_SUPPORT 163 /* 164 * TIS support is intended for thread safe libraries. 165 * This should not be used for general client programming. 166 */ 167 # include <tis.h> 168 typedef pthread_t xthread_t; 169 typedef pthread_key_t xthread_key_t; 170 typedef pthread_cond_t xcondition_rec; 171 typedef pthread_mutex_t xmutex_rec; 172 # define xthread_self tis_self 173 # define xthread_fork(func,closure) { pthread_t _tmpxthr; \ 174 pthread_create(&_tmpxthr,NULL,func,closure); } 175 # define xthread_yield() pthread_yield_np() 176 # define xthread_exit(v) pthread_exit(v) 177 # define xthread_key_create(kp,d) tis_key_create(kp,d) 178 # define xthread_key_delete(k) tis_key_delete(k) 179 # define xthread_set_specific(k,v) tis_setspecific(k,v) 180 # define xthread_get_specific(k,vp) *(vp) = tis_getspecific(k) 181 # define XMUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER 182 # define xmutex_init(m) tis_mutex_init(m) 183 # define xmutex_clear(m) tis_mutex_destroy(m) 184 # define xmutex_lock(m) tis_mutex_lock(m) 185 # define xmutex_unlock(m) tis_mutex_unlock(m) 186 # define xcondition_init(c) tis_cond_init(c) 187 # define xcondition_clear(c) tis_cond_destroy(c) 188 # define xcondition_wait(c,m) tis_cond_wait(c,m) 189 # define xcondition_signal(c) tis_cond_signal(c) 190 # define xcondition_broadcast(c) tis_cond_broadcast(c) 191 # else 192 # ifdef USE_NBSD_THREADLIB 193 /* 194 * NetBSD threadlib support is intended for thread safe libraries. 195 * This should not be used for general client programming. 196 */ 197 # include <threadlib.h> 198 typedef thr_t xthread_t; 199 typedef thread_key_t xthread_key_t; 200 typedef cond_t xcondition_rec; 201 typedef mutex_t xmutex_rec; 202 # define xthread_self thr_self 203 # define xthread_fork(func,closure) { thr_t _tmpxthr; \ 204 /* XXX Create it detached? --thorpej */ \ 205 thr_create(&_tmpxthr,NULL,func,closure); } 206 # define xthread_yield() thr_yield() 207 # define xthread_exit(v) thr_exit(v) 208 # define xthread_key_create(kp,d) thr_keycreate(kp,d) 209 # define xthread_key_delete(k) thr_keydelete(k) 210 # define xthread_set_specific(k,v) thr_setspecific(k,v) 211 # define xthread_get_specific(k,vp) *(vp) = thr_getspecific(k) 212 # define XMUTEX_INITIALIZER MUTEX_INITIALIZER 213 # define xmutex_init(m) mutex_init(m, 0) 214 # define xmutex_clear(m) mutex_destroy(m) 215 # define xmutex_lock(m) mutex_lock(m) 216 # define xmutex_unlock(m) mutex_unlock(m) 217 # define xcondition_init(c) cond_init(c, 0, 0) 218 # define xcondition_clear(c) cond_destroy(c) 219 # define xcondition_wait(c,m) cond_wait(c,m) 220 # define xcondition_signal(c) cond_signal(c) 221 # define xcondition_broadcast(c) cond_broadcast(c) 222 # else 223 # include <pthread.h> 224 typedef pthread_t xthread_t; 225 typedef pthread_key_t xthread_key_t; 226 typedef pthread_cond_t xcondition_rec; 227 typedef pthread_mutex_t xmutex_rec; 228 # define xthread_self pthread_self 229 # define xthread_yield() pthread_yield() 230 # define xthread_exit(v) pthread_exit(v) 231 # define xthread_set_specific(k,v) pthread_setspecific(k,v) 232 # define xmutex_clear(m) pthread_mutex_destroy(m) 233 # define xmutex_lock(m) pthread_mutex_lock(m) 234 # define xmutex_unlock(m) pthread_mutex_unlock(m) 235 # ifndef XPRE_STANDARD_API 236 # define xthread_key_create(kp,d) pthread_key_create(kp,d) 237 # define xthread_key_delete(k) pthread_key_delete(k) 238 # define xthread_get_specific(k,vp) *(vp) = pthread_getspecific(k) 239 # define xthread_fork(func,closure) { pthread_t _tmpxthr; \ 240 pthread_create(&_tmpxthr,NULL,func,closure); } 241 # define XMUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER 242 # define xmutex_init(m) pthread_mutex_init(m, NULL) 243 # define xcondition_init(c) pthread_cond_init(c, NULL) 244 # else /* XPRE_STANDARD_API */ 245 # define xthread_key_create(kp,d) pthread_keycreate(kp,d) 246 # define xthread_key_delete(k) 0 247 # define xthread_get_specific(k,vp) pthread_getspecific(k,vp) 248 # define xthread_fork(func,closure) { pthread_t _tmpxthr; \ 249 pthread_create(&_tmpxthr,pthread_attr_default,func,closure); } 250 # define xmutex_init(m) pthread_mutex_init(m, pthread_mutexattr_default) 251 # define xcondition_init(c) pthread_cond_init(c, pthread_condattr_default) 252 # endif /* XPRE_STANDARD_API */ 253 # define xcondition_clear(c) pthread_cond_destroy(c) 254 # define xcondition_wait(c,m) pthread_cond_wait(c,m) 255 # define xcondition_signal(c) pthread_cond_signal(c) 256 # define xcondition_broadcast(c) pthread_cond_broadcast(c) 257 # if defined(_DECTHREADS_) 258 static xthread_t _X_no_thread_id; 259 # define xthread_have_id(id) !pthread_equal(id, _X_no_thread_id) 260 # define xthread_clear_id(id) id = _X_no_thread_id 261 # define xthread_equal(id1,id2) pthread_equal(id1, id2) 262 # endif /* _DECTHREADS_ */ 263 # if defined(__linux__) 264 # define xthread_have_id(id) !pthread_equal(id, 0) 265 # define xthread_clear_id(id) id = 0 266 # define xthread_equal(id1,id2) pthread_equal(id1, id2) 267 # endif /* linux */ 268 # if defined(_CMA_VENDOR_) && defined(_CMA__IBM) && (_CMA_VENDOR_ == _CMA__IBM) 269 # ifdef DEBUG /* too much of a hack to enable normally */ 270 /* see also cma__obj_set_name() */ 271 # define xmutex_set_name(m,str) ((char**)(m)->field1)[5] = (str) 272 # define xcondition_set_name(cv,str) ((char**)(cv)->field1)[5] = (str) 273 # endif /* DEBUG */ 274 # endif /* _CMA_VENDOR_ == _CMA__IBM */ 275 # endif /* USE_NBSD_THREADLIB */ 276 # endif /* USE_TIS_SUPPORT */ 277 # endif /* WIN32 */ 278 # endif /* SVR4 */ 279 # endif /* CTHREADS */ 280 typedef xcondition_rec *xcondition_t; 281 typedef xmutex_rec *xmutex_t; 282 # ifndef xcondition_malloc 283 # define xcondition_malloc() (xcondition_t)xmalloc(sizeof(xcondition_rec)) 284 # endif 285 # ifndef xcondition_free 286 # define xcondition_free(c) xfree((char *)c) 287 # endif 288 # ifndef xmutex_malloc 289 # define xmutex_malloc() (xmutex_t)xmalloc(sizeof(xmutex_rec)) 290 # endif 291 # ifndef xmutex_free 292 # define xmutex_free(m) xfree((char *)m) 293 # endif 294 # ifndef xthread_have_id 295 # define xthread_have_id(id) id 296 # endif 297 # ifndef xthread_clear_id 298 # define xthread_clear_id(id) id = 0 299 # endif 300 # ifndef xthread_equal 301 # define xthread_equal(id1,id2) ((id1) == (id2)) 302 # endif 303 /* aids understood by some debuggers */ 304 # ifndef xthread_set_name 305 # define xthread_set_name(t,str) 306 # endif 307 # ifndef xmutex_set_name 308 # define xmutex_set_name(m,str) 309 # endif 310 # ifndef xcondition_set_name 311 # define xcondition_set_name(cv,str) 312 # endif 313 314 #endif /* _XTHREADS_H_ */ 315
Indexes created Thu Jul 02 00:25:40 UTC 2026