1 /* 2 * Copyright (C) 2005 David Xu <davidxu@freebsd.org>. 3 * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org>. 4 * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice(s), this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified other than the possible 13 * addition of one or more copyright notices. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice(s), this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 26 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $DragonFly: src/lib/libthread_xu/thread/thr_syscalls.c,v 1.1 2005/02/01 12:38:27 davidxu Exp $ 32 */ 33 34 /* 35 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by John Birrell. 49 * 4. Neither the name of the author nor the names of any co-contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 */ 66 67 #include <sys/cdefs.h> 68 #include <sys/types.h> 69 #include <sys/mman.h> 70 #include <sys/param.h> 71 #include <sys/select.h> 72 #include <sys/signalvar.h> 73 #include <sys/socket.h> 74 #include <sys/stat.h> 75 #include <sys/time.h> 76 #include <sys/uio.h> 77 #include <sys/wait.h> 78 #include <aio.h> 79 #include <dirent.h> 80 #include <errno.h> 81 #include <fcntl.h> 82 #include <poll.h> 83 #include <signal.h> 84 #include <stdarg.h> 85 #include <stdio.h> 86 #include <stdlib.h> 87 #include <string.h> 88 #include <termios.h> 89 #include <unistd.h> 90 #include <pthread.h> 91 92 #include "thr_private.h" 93 94 extern int __creat(const char *, mode_t); 95 extern int __pause(void); 96 extern int __pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 97 const struct timespec *timo, const sigset_t *mask); 98 extern unsigned int __sleep(unsigned int); 99 extern int __system(const char *); 100 extern int __tcdrain(int); 101 extern pid_t __wait(int *); 102 extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 103 extern pid_t __waitpid(pid_t, int *, int); 104 105 __weak_reference(__accept, accept); 106 int 107 __accept(int s, struct sockaddr *addr, socklen_t *addrlen) 108 { 109 struct pthread *curthread; 110 int oldcancel; 111 int ret; 112 113 curthread = _get_curthread(); 114 oldcancel = _thr_cancel_enter(curthread); 115 ret = __sys_accept(s, addr, addrlen); 116 _thr_cancel_leave(curthread, oldcancel); 117 118 return (ret); 119 } 120 121 __weak_reference(_aio_suspend, aio_suspend); 122 123 int 124 _aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 125 timespec *timeout) 126 { 127 struct pthread *curthread = _get_curthread(); 128 int oldcancel; 129 int ret; 130 131 oldcancel = _thr_cancel_enter(curthread); 132 ret = __sys_aio_suspend(iocbs, niocb, timeout); 133 _thr_cancel_leave(curthread, oldcancel); 134 135 return (ret); 136 } 137 138 __weak_reference(__close, close); 139 140 int 141 __close(int fd) 142 { 143 struct pthread *curthread = _get_curthread(); 144 int oldcancel; 145 int ret; 146 147 oldcancel = _thr_cancel_enter(curthread); 148 ret = __sys_close(fd); 149 _thr_cancel_leave(curthread, oldcancel); 150 151 return (ret); 152 } 153 154 __weak_reference(__connect, connect); 155 156 int 157 __connect(int fd, const struct sockaddr *name, socklen_t namelen) 158 { 159 struct pthread *curthread = _get_curthread(); 160 int oldcancel; 161 int ret; 162 163 curthread = _get_curthread(); 164 oldcancel = _thr_cancel_enter(curthread); 165 ret = __sys_connect(fd, name, namelen); 166 _thr_cancel_leave(curthread, oldcancel); 167 168 return (ret); 169 } 170 171 __weak_reference(___creat, creat); 172 173 int 174 ___creat(const char *path, mode_t mode) 175 { 176 struct pthread *curthread = _get_curthread(); 177 int oldcancel; 178 int ret; 179 180 oldcancel = _thr_cancel_enter(curthread); 181 ret = __creat(path, mode); 182 _thr_cancel_leave(curthread, oldcancel); 183 184 return ret; 185 } 186 187 __weak_reference(__fcntl, fcntl); 188 189 int 190 __fcntl(int fd, int cmd,...) 191 { 192 struct pthread *curthread = _get_curthread(); 193 int oldcancel; 194 int ret; 195 va_list ap; 196 197 oldcancel = _thr_cancel_enter(curthread); 198 199 va_start(ap, cmd); 200 switch (cmd) { 201 case F_DUPFD: 202 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 203 break; 204 case F_SETFD: 205 case F_SETFL: 206 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 207 break; 208 case F_GETFD: 209 case F_GETFL: 210 ret = __sys_fcntl(fd, cmd); 211 break; 212 default: 213 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 214 } 215 va_end(ap); 216 217 _thr_cancel_leave(curthread, oldcancel); 218 219 return (ret); 220 } 221 222 __weak_reference(__fsync, fsync); 223 224 int 225 __fsync(int fd) 226 { 227 struct pthread *curthread = _get_curthread(); 228 int oldcancel; 229 int ret; 230 231 oldcancel = _thr_cancel_enter(curthread); 232 ret = __sys_fsync(fd); 233 _thr_cancel_leave(curthread, oldcancel); 234 235 return (ret); 236 } 237 238 __weak_reference(__msync, msync); 239 240 int 241 __msync(void *addr, size_t len, int flags) 242 { 243 struct pthread *curthread = _get_curthread(); 244 int oldcancel; 245 int ret; 246 247 oldcancel = _thr_cancel_enter(curthread); 248 ret = __sys_msync(addr, len, flags); 249 _thr_cancel_leave(curthread, oldcancel); 250 251 return ret; 252 } 253 254 __weak_reference(__nanosleep, nanosleep); 255 256 int 257 __nanosleep(const struct timespec *time_to_sleep, 258 struct timespec *time_remaining) 259 { 260 struct pthread *curthread = _get_curthread(); 261 int oldcancel; 262 int ret; 263 264 oldcancel = _thr_cancel_enter(curthread); 265 ret = __sys_nanosleep(time_to_sleep, time_remaining); 266 _thr_cancel_leave(curthread, oldcancel); 267 268 return (ret); 269 } 270 271 __weak_reference(___open, open); 272 273 int 274 ___open(const char *path, int flags,...) 275 { 276 struct pthread *curthread = _get_curthread(); 277 int oldcancel; 278 int ret; 279 int mode = 0; 280 va_list ap; 281 282 _thread_printf(1, "%s %s\n", __func__, path); 283 oldcancel = _thr_cancel_enter(curthread); 284 285 /* Check if the file is being created: */ 286 if (flags & O_CREAT) { 287 /* Get the creation mode: */ 288 va_start(ap, flags); 289 mode = va_arg(ap, int); 290 va_end(ap); 291 } 292 293 ret = __sys_open(path, flags, mode); 294 295 _thr_cancel_leave(curthread, oldcancel); 296 297 return ret; 298 } 299 300 __weak_reference(_pause, pause); 301 302 int 303 _pause(void) 304 { 305 struct pthread *curthread = _get_curthread(); 306 int oldcancel; 307 int ret; 308 309 oldcancel = _thr_cancel_enter(curthread); 310 ret = __pause(); 311 _thr_cancel_leave(curthread, oldcancel); 312 313 return ret; 314 } 315 316 __weak_reference(__poll, poll); 317 318 int 319 __poll(struct pollfd *fds, unsigned int nfds, int timeout) 320 { 321 struct pthread *curthread = _get_curthread(); 322 int oldcancel; 323 int ret; 324 325 oldcancel = _thr_cancel_enter(curthread); 326 ret = __sys_poll(fds, nfds, timeout); 327 _thr_cancel_leave(curthread, oldcancel); 328 329 return ret; 330 } 331 332 #if 0 333 __weak_reference(_pselect, pselect); 334 335 int 336 _pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 337 const struct timespec *timo, const sigset_t *mask) 338 { 339 struct pthread *curthread = _get_curthread(); 340 int oldcancel; 341 int ret; 342 343 oldcancel = _thr_cancel_enter(curthread); 344 ret = __pselect(count, rfds, wfds, efds, timo, mask); 345 _thr_cancel_leave(curthread, oldcancel); 346 347 return (ret); 348 } 349 #endif 350 351 __weak_reference(_raise, raise); 352 353 int 354 _raise(int sig) 355 { 356 int ret; 357 358 if (!_thr_isthreaded()) 359 ret = kill(getpid(), sig); 360 else { 361 ret = pthread_kill(pthread_self(), sig); 362 if (ret != 0) { 363 errno = ret; 364 ret = -1; 365 } 366 } 367 return (ret); 368 } 369 370 __weak_reference(__read, read); 371 372 ssize_t 373 __read(int fd, void *buf, size_t nbytes) 374 { 375 struct pthread *curthread = _get_curthread(); 376 int oldcancel; 377 ssize_t ret; 378 379 oldcancel = _thr_cancel_enter(curthread); 380 ret = __sys_read(fd, buf, nbytes); 381 _thr_cancel_leave(curthread, oldcancel); 382 383 return ret; 384 } 385 386 __weak_reference(__readv, readv); 387 388 ssize_t 389 __readv(int fd, const struct iovec *iov, int iovcnt) 390 { 391 struct pthread *curthread = _get_curthread(); 392 int oldcancel; 393 ssize_t ret; 394 395 oldcancel = _thr_cancel_enter(curthread); 396 ret = __sys_readv(fd, iov, iovcnt); 397 _thr_cancel_leave(curthread, oldcancel); 398 399 return ret; 400 } 401 402 __weak_reference(__recvfrom, recvfrom); 403 404 ssize_t 405 __recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 406 socklen_t *fl) 407 { 408 struct pthread *curthread = _get_curthread(); 409 int oldcancel; 410 ssize_t ret; 411 412 oldcancel = _thr_cancel_enter(curthread); 413 ret = __sys_recvfrom(s, b, l, f, from, fl); 414 _thr_cancel_leave(curthread, oldcancel); 415 return (ret); 416 } 417 418 __weak_reference(__recvmsg, recvmsg); 419 420 ssize_t 421 __recvmsg(int s, struct msghdr *m, int f) 422 { 423 struct pthread *curthread = _get_curthread(); 424 ssize_t ret; 425 int oldcancel; 426 427 oldcancel = _thr_cancel_enter(curthread); 428 ret = __sys_recvmsg(s, m, f); 429 _thr_cancel_leave(curthread, oldcancel); 430 return (ret); 431 } 432 433 __weak_reference(__select, select); 434 435 int 436 __select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 437 struct timeval *timeout) 438 { 439 struct pthread *curthread = _get_curthread(); 440 int oldcancel; 441 int ret; 442 443 oldcancel = _thr_cancel_enter(curthread); 444 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 445 _thr_cancel_leave(curthread, oldcancel); 446 return ret; 447 } 448 449 __weak_reference(__sendmsg, sendmsg); 450 451 ssize_t 452 __sendmsg(int s, const struct msghdr *m, int f) 453 { 454 struct pthread *curthread = _get_curthread(); 455 ssize_t ret; 456 int oldcancel; 457 458 oldcancel = _thr_cancel_enter(curthread); 459 ret = __sys_sendmsg(s, m, f); 460 _thr_cancel_leave(curthread, oldcancel); 461 return (ret); 462 } 463 464 __weak_reference(__sendto, sendto); 465 466 ssize_t 467 __sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 468 socklen_t tl) 469 { 470 struct pthread *curthread = _get_curthread(); 471 ssize_t ret; 472 int oldcancel; 473 474 oldcancel = _thr_cancel_enter(curthread); 475 ret = __sys_sendto(s, m, l, f, t, tl); 476 _thr_cancel_leave(curthread, oldcancel); 477 return (ret); 478 } 479 480 unsigned int 481 _sleep(unsigned int seconds) 482 { 483 struct pthread *curthread = _get_curthread(); 484 int oldcancel; 485 unsigned int ret; 486 487 oldcancel = _thr_cancel_enter(curthread); 488 ret = __sleep(seconds); 489 _thr_cancel_leave(curthread, oldcancel); 490 491 return (ret); 492 } 493 494 __weak_reference(_system, system); 495 496 int 497 _system(const char *string) 498 { 499 struct pthread *curthread = _get_curthread(); 500 int oldcancel; 501 int ret; 502 503 oldcancel = _thr_cancel_enter(curthread); 504 ret = __system(string); 505 _thr_cancel_leave(curthread, oldcancel); 506 507 return ret; 508 } 509 510 __weak_reference(_tcdrain, tcdrain); 511 512 int 513 _tcdrain(int fd) 514 { 515 struct pthread *curthread = _get_curthread(); 516 int oldcancel; 517 int ret; 518 519 oldcancel = _thr_cancel_enter(curthread); 520 ret = __tcdrain(fd); 521 _thr_cancel_leave(curthread, oldcancel); 522 523 return (ret); 524 } 525 526 __weak_reference(_vfork, vfork); 527 528 int 529 _vfork(void) 530 { 531 return (fork()); 532 } 533 534 __weak_reference(_wait, wait); 535 536 pid_t 537 _wait(int *istat) 538 { 539 struct pthread *curthread = _get_curthread(); 540 int oldcancel; 541 pid_t ret; 542 543 oldcancel = _thr_cancel_enter(curthread); 544 ret = __wait(istat); 545 _thr_cancel_leave(curthread, oldcancel); 546 547 return ret; 548 } 549 550 __weak_reference(__wait4, wait4); 551 552 pid_t 553 __wait4(pid_t pid, int *istat, int options, struct rusage *rusage) 554 { 555 struct pthread *curthread = _get_curthread(); 556 int oldcancel; 557 pid_t ret; 558 559 oldcancel = _thr_cancel_enter(curthread); 560 ret = __sys_wait4(pid, istat, options, rusage); 561 _thr_cancel_leave(curthread, oldcancel); 562 563 return ret; 564 } 565 566 __weak_reference(_waitpid, waitpid); 567 568 pid_t 569 _waitpid(pid_t wpid, int *status, int options) 570 { 571 struct pthread *curthread = _get_curthread(); 572 int oldcancel; 573 pid_t ret; 574 575 oldcancel = _thr_cancel_enter(curthread); 576 ret = __waitpid(wpid, status, options); 577 _thr_cancel_leave(curthread, oldcancel); 578 579 return ret; 580 } 581 582 __weak_reference(__write, write); 583 584 ssize_t 585 __write(int fd, const void *buf, size_t nbytes) 586 { 587 struct pthread *curthread = _get_curthread(); 588 int oldcancel; 589 ssize_t ret; 590 591 oldcancel = _thr_cancel_enter(curthread); 592 ret = __sys_write(fd, buf, nbytes); 593 _thr_cancel_leave(curthread, oldcancel); 594 595 return ret; 596 } 597 598 __weak_reference(__writev, writev); 599 600 ssize_t 601 __writev(int fd, const struct iovec *iov, int iovcnt) 602 { 603 struct pthread *curthread = _get_curthread(); 604 int oldcancel; 605 ssize_t ret; 606 607 oldcancel = _thr_cancel_enter(curthread); 608 ret = __sys_writev(fd, iov, iovcnt); 609 _thr_cancel_leave(curthread, oldcancel); 610 611 return ret; 612 } 613