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 1.5 2005/11/02 23:41:17 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/types.h> 68 #include <sys/mman.h> 69 #include <sys/param.h> 70 #include <sys/select.h> 71 #include <sys/signalvar.h> 72 #include <sys/socket.h> 73 #include <sys/stat.h> 74 #include <sys/time.h> 75 #include <sys/uio.h> 76 #include <sys/wait.h> 77 78 #include <machine/tls.h> 79 80 #include <aio.h> 81 #include <dirent.h> 82 #include <errno.h> 83 #include <fcntl.h> 84 #include <poll.h> 85 #include <signal.h> 86 #include <stdarg.h> 87 #include <stdio.h> 88 #include <stdlib.h> 89 #include <string.h> 90 #include <termios.h> 91 #include <unistd.h> 92 #include <pthread.h> 93 94 #include "thr_private.h" 95 96 extern int __creat(const char *, mode_t); 97 extern int __pause(void); 98 extern int __pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 99 const struct timespec *timo, const sigset_t *mask); 100 extern unsigned int __sleep(unsigned int); 101 extern int __system(const char *); 102 extern int __tcdrain(int); 103 extern int __usleep(unsigned int); 104 extern pid_t __wait(int *); 105 extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 106 extern pid_t __waitpid(pid_t, int *, int); 107 108 __weak_reference(__accept, accept); 109 int 110 __accept(int s, struct sockaddr *addr, socklen_t *addrlen) 111 { 112 struct pthread *curthread; 113 int oldcancel; 114 int ret; 115 116 curthread = tls_get_curthread(); 117 oldcancel = _thr_cancel_enter(curthread); 118 ret = __sys_accept(s, addr, addrlen); 119 _thr_cancel_leave(curthread, oldcancel); 120 121 return (ret); 122 } 123 124 __weak_reference(_aio_suspend, aio_suspend); 125 126 int 127 _aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 128 timespec *timeout) 129 { 130 struct pthread *curthread = tls_get_curthread(); 131 int oldcancel; 132 int ret; 133 134 oldcancel = _thr_cancel_enter(curthread); 135 ret = __sys_aio_suspend(iocbs, niocb, timeout); 136 _thr_cancel_leave(curthread, oldcancel); 137 138 return (ret); 139 } 140 141 __weak_reference(__close, close); 142 143 int 144 __close(int fd) 145 { 146 struct pthread *curthread = tls_get_curthread(); 147 int oldcancel; 148 int ret; 149 150 oldcancel = _thr_cancel_enter(curthread); 151 ret = __sys_close(fd); 152 _thr_cancel_leave(curthread, oldcancel); 153 154 return (ret); 155 } 156 157 __weak_reference(__connect, connect); 158 159 int 160 __connect(int fd, const struct sockaddr *name, socklen_t namelen) 161 { 162 struct pthread *curthread = tls_get_curthread(); 163 int oldcancel; 164 int ret; 165 166 oldcancel = _thr_cancel_enter(curthread); 167 ret = __sys_connect(fd, name, namelen); 168 _thr_cancel_leave(curthread, oldcancel); 169 170 return (ret); 171 } 172 173 __weak_reference(___creat, creat); 174 175 int 176 ___creat(const char *path, mode_t mode) 177 { 178 struct pthread *curthread = tls_get_curthread(); 179 int oldcancel; 180 int ret; 181 182 oldcancel = _thr_cancel_enter(curthread); 183 ret = __creat(path, mode); 184 _thr_cancel_leave(curthread, oldcancel); 185 186 return ret; 187 } 188 189 __weak_reference(__fcntl, fcntl); 190 191 int 192 __fcntl(int fd, int cmd,...) 193 { 194 struct pthread *curthread = tls_get_curthread(); 195 int oldcancel; 196 int ret; 197 va_list ap; 198 199 oldcancel = _thr_cancel_enter(curthread); 200 201 va_start(ap, cmd); 202 switch (cmd) { 203 case F_DUPFD: 204 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 205 break; 206 case F_SETFD: 207 case F_SETFL: 208 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 209 break; 210 case F_GETFD: 211 case F_GETFL: 212 ret = __sys_fcntl(fd, cmd); 213 break; 214 default: 215 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 216 } 217 va_end(ap); 218 219 _thr_cancel_leave(curthread, oldcancel); 220 221 return (ret); 222 } 223 224 __weak_reference(__fsync, fsync); 225 226 int 227 __fsync(int fd) 228 { 229 struct pthread *curthread = tls_get_curthread(); 230 int oldcancel; 231 int ret; 232 233 oldcancel = _thr_cancel_enter(curthread); 234 ret = __sys_fsync(fd); 235 _thr_cancel_leave(curthread, oldcancel); 236 237 return (ret); 238 } 239 240 __weak_reference(__msync, msync); 241 242 int 243 __msync(void *addr, size_t len, int flags) 244 { 245 struct pthread *curthread = tls_get_curthread(); 246 int oldcancel; 247 int ret; 248 249 oldcancel = _thr_cancel_enter(curthread); 250 ret = __sys_msync(addr, len, flags); 251 _thr_cancel_leave(curthread, oldcancel); 252 253 return ret; 254 } 255 256 __weak_reference(__nanosleep, nanosleep); 257 258 int 259 __nanosleep(const struct timespec *time_to_sleep, 260 struct timespec *time_remaining) 261 { 262 struct pthread *curthread = tls_get_curthread(); 263 int oldcancel; 264 int ret; 265 266 oldcancel = _thr_cancel_enter(curthread); 267 ret = __sys_nanosleep(time_to_sleep, time_remaining); 268 _thr_cancel_leave(curthread, oldcancel); 269 270 return (ret); 271 } 272 273 __weak_reference(___open, open); 274 275 int 276 ___open(const char *path, int flags,...) 277 { 278 struct pthread *curthread = tls_get_curthread(); 279 int oldcancel; 280 int ret; 281 int mode = 0; 282 va_list ap; 283 284 oldcancel = _thr_cancel_enter(curthread); 285 286 /* Check if the file is being created: */ 287 if (flags & O_CREAT) { 288 /* Get the creation mode: */ 289 va_start(ap, flags); 290 mode = va_arg(ap, int); 291 va_end(ap); 292 } 293 294 ret = __sys_open(path, flags, mode); 295 296 _thr_cancel_leave(curthread, oldcancel); 297 298 return ret; 299 } 300 301 __weak_reference(_pause, pause); 302 303 int 304 _pause(void) 305 { 306 struct pthread *curthread = tls_get_curthread(); 307 int oldcancel; 308 int ret; 309 310 oldcancel = _thr_cancel_enter(curthread); 311 ret = __pause(); 312 _thr_cancel_leave(curthread, oldcancel); 313 314 return ret; 315 } 316 317 __weak_reference(__poll, poll); 318 319 int 320 __poll(struct pollfd *fds, unsigned int nfds, int timeout) 321 { 322 struct pthread *curthread = tls_get_curthread(); 323 int oldcancel; 324 int ret; 325 326 oldcancel = _thr_cancel_enter(curthread); 327 ret = __sys_poll(fds, nfds, timeout); 328 _thr_cancel_leave(curthread, oldcancel); 329 330 return ret; 331 } 332 333 #if 0 334 __weak_reference(_pselect, pselect); 335 336 int 337 _pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 338 const struct timespec *timo, const sigset_t *mask) 339 { 340 struct pthread *curthread = tls_get_curthread(); 341 int oldcancel; 342 int ret; 343 344 oldcancel = _thr_cancel_enter(curthread); 345 ret = __pselect(count, rfds, wfds, efds, timo, mask); 346 _thr_cancel_leave(curthread, oldcancel); 347 348 return (ret); 349 } 350 #endif 351 352 __weak_reference(_raise, raise); 353 354 int 355 _raise(int sig) 356 { 357 int ret; 358 359 if (!_thr_isthreaded()) 360 ret = kill(getpid(), sig); 361 else 362 ret = _thr_send_sig(tls_get_curthread(), sig); 363 return (ret); 364 } 365 366 __weak_reference(__read, read); 367 368 ssize_t 369 __read(int fd, void *buf, size_t nbytes) 370 { 371 struct pthread *curthread = tls_get_curthread(); 372 int oldcancel; 373 ssize_t ret; 374 375 oldcancel = _thr_cancel_enter(curthread); 376 ret = __sys_read(fd, buf, nbytes); 377 _thr_cancel_leave(curthread, oldcancel); 378 379 return ret; 380 } 381 382 __weak_reference(__readv, readv); 383 384 ssize_t 385 __readv(int fd, const struct iovec *iov, int iovcnt) 386 { 387 struct pthread *curthread = tls_get_curthread(); 388 int oldcancel; 389 ssize_t ret; 390 391 oldcancel = _thr_cancel_enter(curthread); 392 ret = __sys_readv(fd, iov, iovcnt); 393 _thr_cancel_leave(curthread, oldcancel); 394 395 return ret; 396 } 397 398 __weak_reference(__recvfrom, recvfrom); 399 400 ssize_t 401 __recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 402 socklen_t *fl) 403 { 404 struct pthread *curthread = tls_get_curthread(); 405 int oldcancel; 406 ssize_t ret; 407 408 oldcancel = _thr_cancel_enter(curthread); 409 ret = __sys_recvfrom(s, b, l, f, from, fl); 410 _thr_cancel_leave(curthread, oldcancel); 411 return (ret); 412 } 413 414 __weak_reference(__recvmsg, recvmsg); 415 416 ssize_t 417 __recvmsg(int s, struct msghdr *m, int f) 418 { 419 struct pthread *curthread = tls_get_curthread(); 420 ssize_t ret; 421 int oldcancel; 422 423 oldcancel = _thr_cancel_enter(curthread); 424 ret = __sys_recvmsg(s, m, f); 425 _thr_cancel_leave(curthread, oldcancel); 426 return (ret); 427 } 428 429 __weak_reference(__select, select); 430 431 int 432 __select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 433 struct timeval *timeout) 434 { 435 struct pthread *curthread = tls_get_curthread(); 436 int oldcancel; 437 int ret; 438 439 oldcancel = _thr_cancel_enter(curthread); 440 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 441 _thr_cancel_leave(curthread, oldcancel); 442 return ret; 443 } 444 445 __weak_reference(__sendmsg, sendmsg); 446 447 ssize_t 448 __sendmsg(int s, const struct msghdr *m, int f) 449 { 450 struct pthread *curthread = tls_get_curthread(); 451 ssize_t ret; 452 int oldcancel; 453 454 oldcancel = _thr_cancel_enter(curthread); 455 ret = __sys_sendmsg(s, m, f); 456 _thr_cancel_leave(curthread, oldcancel); 457 return (ret); 458 } 459 460 __weak_reference(__sendto, sendto); 461 462 ssize_t 463 __sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 464 socklen_t tl) 465 { 466 struct pthread *curthread = tls_get_curthread(); 467 ssize_t ret; 468 int oldcancel; 469 470 oldcancel = _thr_cancel_enter(curthread); 471 ret = __sys_sendto(s, m, l, f, t, tl); 472 _thr_cancel_leave(curthread, oldcancel); 473 return (ret); 474 } 475 476 unsigned int 477 _sleep(unsigned int seconds) 478 { 479 struct pthread *curthread = tls_get_curthread(); 480 int oldcancel; 481 unsigned int ret; 482 483 oldcancel = _thr_cancel_enter(curthread); 484 ret = __sleep(seconds); 485 _thr_cancel_leave(curthread, oldcancel); 486 487 return (ret); 488 } 489 490 __weak_reference(_system, system); 491 492 int 493 _system(const char *string) 494 { 495 struct pthread *curthread = tls_get_curthread(); 496 int oldcancel; 497 int ret; 498 499 oldcancel = _thr_cancel_enter(curthread); 500 ret = __system(string); 501 _thr_cancel_leave(curthread, oldcancel); 502 503 return ret; 504 } 505 506 __weak_reference(_tcdrain, tcdrain); 507 508 int 509 _tcdrain(int fd) 510 { 511 struct pthread *curthread = tls_get_curthread(); 512 int oldcancel; 513 int ret; 514 515 oldcancel = _thr_cancel_enter(curthread); 516 ret = __tcdrain(fd); 517 _thr_cancel_leave(curthread, oldcancel); 518 519 return (ret); 520 } 521 522 __weak_reference(___usleep, usleep); 523 524 int 525 ___usleep(unsigned int useconds) 526 { 527 struct pthread *curthread = tls_get_curthread(); 528 int oldcancel; 529 int ret; 530 531 oldcancel = _thr_cancel_enter(curthread); 532 ret = __usleep(useconds); 533 _thr_cancel_leave(curthread, oldcancel); 534 535 return (ret); 536 } 537 538 __weak_reference(_vfork, vfork); 539 540 int 541 _vfork(void) 542 { 543 return (fork()); 544 } 545 546 __weak_reference(_wait, wait); 547 548 pid_t 549 _wait(int *istat) 550 { 551 struct pthread *curthread = tls_get_curthread(); 552 int oldcancel; 553 pid_t ret; 554 555 oldcancel = _thr_cancel_enter(curthread); 556 ret = __wait(istat); 557 _thr_cancel_leave(curthread, oldcancel); 558 559 return ret; 560 } 561 562 __weak_reference(__wait4, wait4); 563 564 pid_t 565 __wait4(pid_t pid, int *istat, int options, struct rusage *rusage) 566 { 567 struct pthread *curthread = tls_get_curthread(); 568 int oldcancel; 569 pid_t ret; 570 571 oldcancel = _thr_cancel_enter(curthread); 572 ret = __sys_wait4(pid, istat, options, rusage); 573 _thr_cancel_leave(curthread, oldcancel); 574 575 return ret; 576 } 577 578 __weak_reference(_waitpid, waitpid); 579 580 pid_t 581 _waitpid(pid_t wpid, int *status, int options) 582 { 583 struct pthread *curthread = tls_get_curthread(); 584 int oldcancel; 585 pid_t ret; 586 587 oldcancel = _thr_cancel_enter(curthread); 588 ret = __waitpid(wpid, status, options); 589 _thr_cancel_leave(curthread, oldcancel); 590 591 return ret; 592 } 593 594 __weak_reference(__write, write); 595 596 ssize_t 597 __write(int fd, const void *buf, size_t nbytes) 598 { 599 struct pthread *curthread = tls_get_curthread(); 600 int oldcancel; 601 ssize_t ret; 602 603 oldcancel = _thr_cancel_enter(curthread); 604 ret = __sys_write(fd, buf, nbytes); 605 _thr_cancel_leave(curthread, oldcancel); 606 607 return ret; 608 } 609 610 __weak_reference(__writev, writev); 611 612 ssize_t 613 __writev(int fd, const struct iovec *iov, int iovcnt) 614 { 615 struct pthread *curthread = tls_get_curthread(); 616 int oldcancel; 617 ssize_t ret; 618 619 oldcancel = _thr_cancel_enter(curthread); 620 ret = __sys_writev(fd, iov, iovcnt); 621 _thr_cancel_leave(curthread, oldcancel); 622 623 return ret; 624 } 625