pthread_cancelstub.c revision 1.2
1 /* $NetBSD: pthread_cancelstub.c,v 1.2 2003/01/18 10:34:15 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nathan J. Williams. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/msg.h> 40 #include <sys/types.h> 41 #include <sys/uio.h> 42 #include <sys/wait.h> 43 #include <fcntl.h> 44 #include <poll.h> 45 #include <stdarg.h> 46 #include <unistd.h> 47 48 int pthread__cancel_stub_binder; 49 50 /* 51 * XXX this is necessary to get the prototypes for the __sigsuspend14 52 * XXX and __msync13 internal names, instead of the application-visible 53 * XXX sigsuspend and msync names. It's kind of gross, but we're pretty 54 * XXX intimate with libc already. 55 */ 56 #define __LIBC12_SOURCE__ 57 #include <signal.h> 58 #include <sys/mman.h> 59 60 #include "pthread.h" 61 #include "pthread_int.h" 62 63 int _sys_close(int); 64 int _sys_fcntl(int, int, ...); 65 int _sys_fsync(int); 66 ssize_t _sys_msgrcv(int, void *, size_t, long, int); 67 int _sys_msgsnd(int, const void *, size_t, int); 68 int _sys___msync13(void *, size_t, int); 69 int _sys_nanosleep(const struct timespec *, struct timespec *); 70 int _sys_open(const char *, int, ...); 71 int _sys_poll(struct pollfd *, nfds_t, int); 72 ssize_t _sys_pread(int, void *, size_t, off_t); 73 ssize_t _sys_pwrite(int, const void *, size_t, off_t); 74 ssize_t _sys_read(int, void *, size_t); 75 ssize_t _sys_readv(int, const struct iovec *, int); 76 int _sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 77 int _sys_wait4(pid_t, int *, int, struct rusage *); 78 ssize_t _sys_write(int, const void *, size_t); 79 ssize_t _sys_writev(int, const struct iovec *, int); 80 81 82 int 83 close(int d) 84 { 85 int retval; 86 pthread_t self; 87 88 self = pthread__self(); 89 pthread__testcancel(self); 90 retval = _sys_close(d); 91 pthread__testcancel(self); 92 93 return retval; 94 } 95 96 int 97 fcntl(int fd, int cmd, ...) 98 { 99 int retval; 100 pthread_t self; 101 va_list ap; 102 103 self = pthread__self(); 104 pthread__testcancel(self); 105 va_start(ap, cmd); 106 retval = _sys_fcntl(fd, cmd, va_arg(ap, void *)); 107 va_end(ap); 108 pthread__testcancel(self); 109 110 return retval; 111 } 112 113 int 114 fsync(int d) 115 { 116 int retval; 117 pthread_t self; 118 119 self = pthread__self(); 120 pthread__testcancel(self); 121 retval = _sys_fsync(d); 122 pthread__testcancel(self); 123 124 return retval; 125 } 126 127 ssize_t 128 msgrcv(int msgid, void *msgp, size_t msgsz, long msgtyp, int msgflg) 129 { 130 ssize_t retval; 131 pthread_t self; 132 133 self = pthread__self(); 134 pthread__testcancel(self); 135 retval = _sys_msgrcv(msgid, msgp, msgsz, msgtyp, msgflg); 136 pthread__testcancel(self); 137 138 return retval; 139 } 140 141 int 142 msgsnd(int msgid, const void *msgp, size_t msgsz, int msgflg) 143 { 144 int retval; 145 pthread_t self; 146 147 self = pthread__self(); 148 pthread__testcancel(self); 149 retval = _sys_msgsnd(msgid, msgp, msgsz, msgflg); 150 pthread__testcancel(self); 151 152 return retval; 153 } 154 155 int 156 __msync13(void *addr, size_t len, int flags) 157 { 158 int retval; 159 pthread_t self; 160 161 self = pthread__self(); 162 pthread__testcancel(self); 163 retval = _sys___msync13(addr, len, flags); 164 pthread__testcancel(self); 165 166 return retval; 167 } 168 169 int 170 nanosleep(const struct timespec *rqtp, struct timespec *rmtp) 171 { 172 int retval; 173 pthread_t self; 174 175 self = pthread__self(); 176 pthread__testcancel(self); 177 retval = _sys_nanosleep(rqtp, rmtp); 178 pthread__testcancel(self); 179 180 return retval; 181 } 182 183 int 184 open(const char *path, int flags, ...) 185 { 186 int retval; 187 pthread_t self; 188 va_list ap; 189 190 self = pthread__self(); 191 pthread__testcancel(self); 192 va_start(ap, flags); 193 retval = _sys_open(path, flags, va_arg(ap, mode_t)); 194 va_end(ap); 195 pthread__testcancel(self); 196 197 return retval; 198 } 199 200 int 201 poll(struct pollfd *fds, nfds_t nfds, int timeout) 202 { 203 int retval; 204 pthread_t self; 205 206 self = pthread__self(); 207 pthread__testcancel(self); 208 retval = _sys_poll(fds, nfds, timeout); 209 pthread__testcancel(self); 210 211 return retval; 212 } 213 214 ssize_t 215 pread(int d, void *buf, size_t nbytes, off_t offset) 216 { 217 ssize_t retval; 218 pthread_t self; 219 220 self = pthread__self(); 221 pthread__testcancel(self); 222 retval = _sys_pread(d, buf, nbytes, offset); 223 pthread__testcancel(self); 224 225 return retval; 226 } 227 228 ssize_t 229 pwrite(int d, const void *buf, size_t nbytes, off_t offset) 230 { 231 ssize_t retval; 232 pthread_t self; 233 234 self = pthread__self(); 235 pthread__testcancel(self); 236 retval = _sys_pwrite(d, buf, nbytes, offset); 237 pthread__testcancel(self); 238 239 return retval; 240 } 241 242 ssize_t 243 read(int d, void *buf, size_t nbytes) 244 { 245 ssize_t retval; 246 pthread_t self; 247 248 self = pthread__self(); 249 pthread__testcancel(self); 250 retval = _sys_read(d, buf, nbytes); 251 pthread__testcancel(self); 252 253 return retval; 254 } 255 256 ssize_t 257 readv(int d, const struct iovec *iov, int iovcnt) 258 { 259 ssize_t retval; 260 pthread_t self; 261 262 self = pthread__self(); 263 pthread__testcancel(self); 264 retval = _sys_readv(d, iov, iovcnt); 265 pthread__testcancel(self); 266 267 return retval; 268 } 269 270 int 271 select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 272 struct timeval *timeout) 273 { 274 int retval; 275 pthread_t self; 276 277 self = pthread__self(); 278 pthread__testcancel(self); 279 retval = _sys_select(nfds, readfds, writefds, exceptfds, timeout); 280 pthread__testcancel(self); 281 282 return retval; 283 } 284 285 pid_t 286 wait4(pid_t wpid, int *status, int options, struct rusage *rusage) 287 { 288 pid_t retval; 289 pthread_t self; 290 291 self = pthread__self(); 292 pthread__testcancel(self); 293 retval = _sys_wait4(wpid, status, options, rusage); 294 pthread__testcancel(self); 295 296 return retval; 297 } 298 299 ssize_t 300 write(int d, const void *buf, size_t nbytes) 301 { 302 ssize_t retval; 303 pthread_t self; 304 305 self = pthread__self(); 306 pthread__testcancel(self); 307 retval = _sys_write(d, buf, nbytes); 308 pthread__testcancel(self); 309 310 return retval; 311 } 312 313 ssize_t 314 writev(int d, const struct iovec *iov, int iovcnt) 315 { 316 ssize_t retval; 317 pthread_t self; 318 319 self = pthread__self(); 320 pthread__testcancel(self); 321 retval = _sys_writev(d, iov, iovcnt); 322 pthread__testcancel(self); 323 324 return retval; 325 } 326 327 328 __strong_alias(_close, close) 329 __strong_alias(_fcntl, fcntl) 330 __strong_alias(_fsync, fsync) 331 __strong_alias(_msgrcv, msgrcv) 332 __strong_alias(_msgsnd, msgsnd) 333 __strong_alias(___msync13, __msync13) 334 __strong_alias(_nanosleep, nanosleep) 335 __strong_alias(_open, open) 336 __strong_alias(_poll, poll) 337 __strong_alias(_pread, pread) 338 __strong_alias(_pwrite, pwrite) 339 __strong_alias(_read, read) 340 __strong_alias(_readv, readv) 341 __strong_alias(_select, select) 342 __strong_alias(_wait4, wait4) 343 __strong_alias(_write, write) 344 __strong_alias(_writev, writev) 345
Indexes created Sat Sep 20 22:09:52 GMT 2025