thr_syscalls.c revision 164583
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 * $FreeBSD: head/lib/libthr/thread/thr_syscalls.c 164583 2006-11-24 09:57:38Z davidxu $ 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 "namespace.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#include "un-namespace.h" 92 93#include "thr_private.h" 94 95extern int __creat(const char *, mode_t); 96extern int __pselect(int, fd_set *, fd_set *, fd_set *, 97 const struct timespec *, const sigset_t *); 98extern unsigned __sleep(unsigned int); 99extern int __system(const char *); 100extern int __tcdrain(int); 101extern int __usleep(useconds_t); 102extern pid_t __wait(int *); 103extern pid_t __waitpid(pid_t, int *, int); 104extern int __sys_aio_suspend(const struct aiocb * const[], int, 105 const struct timespec *); 106extern int __sys_accept(int, struct sockaddr *, socklen_t *); 107extern int __sys_connect(int, const struct sockaddr *, socklen_t); 108extern int __sys_fsync(int); 109extern int __sys_msync(void *, size_t, int); 110extern int __sys_poll(struct pollfd *, unsigned, int); 111extern ssize_t __sys_recv(int, void *, size_t, int); 112extern ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); 113extern ssize_t __sys_recvmsg(int, struct msghdr *, int); 114extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 115extern int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, 116 off_t *, int); 117extern ssize_t __sys_sendmsg(int, const struct msghdr *, int); 118extern ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); 119extern ssize_t __sys_readv(int, const struct iovec *, int); 120extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 121extern ssize_t __sys_writev(int, const struct iovec *, int); 122 123int ___creat(const char *, mode_t); 124int ___pselect(int, fd_set *, fd_set *, fd_set *, 125 const struct timespec *, const sigset_t *); 126unsigned ___sleep(unsigned); 127int ___system(const char *); 128int ___tcdrain(int); 129int ___usleep(useconds_t useconds); 130pid_t ___wait(int *); 131pid_t ___waitpid(pid_t, int *, int); 132int __accept(int, struct sockaddr *, socklen_t *); 133int __aio_suspend(const struct aiocb * const iocbs[], int, 134 const struct timespec *); 135int __close(int); 136int __connect(int, const struct sockaddr *, socklen_t); 137int __fcntl(int, int,...); 138int __fsync(int); 139int __msync(void *, size_t, int); 140int __nanosleep(const struct timespec *, struct timespec *); 141int __open(const char *, int,...); 142int __poll(struct pollfd *, unsigned int, int); 143ssize_t __read(int, void *buf, size_t); 144ssize_t __readv(int, const struct iovec *, int); 145ssize_t __recvfrom(int, void *, size_t, int f, struct sockaddr *, socklen_t *); 146ssize_t __recvmsg(int, struct msghdr *, int); 147int __select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 148ssize_t __sendmsg(int, const struct msghdr *, int); 149ssize_t __sendto(int, const void *, size_t, int, 150 const struct sockaddr *, socklen_t); 151pid_t __wait3(int *, int, struct rusage *); 152pid_t __wait4(pid_t, int *, int, struct rusage *); 153ssize_t __write(int, const void *, size_t); 154ssize_t __writev(int, const struct iovec *, int); 155int _vfork(void); 156 157__weak_reference(__accept, accept); 158 159int 160__accept(int s, struct sockaddr *addr, socklen_t *addrlen) 161{ 162 struct pthread *curthread; 163 int ret; 164 165 curthread = _get_curthread(); 166 _thr_cancel_enter(curthread); 167 ret = __sys_accept(s, addr, addrlen); 168 _thr_cancel_leave(curthread); 169 170 return (ret); 171} 172 173__weak_reference(__aio_suspend, aio_suspend); 174 175int 176__aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 177 timespec *timeout) 178{ 179 struct pthread *curthread = _get_curthread(); 180 int ret; 181 182 _thr_cancel_enter(curthread); 183 ret = __sys_aio_suspend(iocbs, niocb, timeout); 184 _thr_cancel_leave(curthread); 185 186 return (ret); 187} 188 189__weak_reference(__close, close); 190 191int 192__close(int fd) 193{ 194 struct pthread *curthread = _get_curthread(); 195 int ret; 196 197 _thr_cancel_enter(curthread); 198 ret = __sys_close(fd); 199 _thr_cancel_leave(curthread); 200 201 return (ret); 202} 203 204__weak_reference(__connect, connect); 205 206int 207__connect(int fd, const struct sockaddr *name, socklen_t namelen) 208{ 209 struct pthread *curthread = _get_curthread(); 210 int ret; 211 212 _thr_cancel_enter(curthread); 213 ret = __sys_connect(fd, name, namelen); 214 _thr_cancel_leave(curthread); 215 216 return (ret); 217} 218 219__weak_reference(___creat, creat); 220 221int 222___creat(const char *path, mode_t mode) 223{ 224 struct pthread *curthread = _get_curthread(); 225 int ret; 226 227 _thr_cancel_enter(curthread); 228 ret = __creat(path, mode); 229 _thr_cancel_leave(curthread); 230 231 return ret; 232} 233 234__weak_reference(__fcntl, fcntl); 235 236int 237__fcntl(int fd, int cmd,...) 238{ 239 struct pthread *curthread = _get_curthread(); 240 int ret; 241 va_list ap; 242 243 _thr_cancel_enter(curthread); 244 245 va_start(ap, cmd); 246 switch (cmd) { 247 case F_DUPFD: 248 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 249 break; 250 case F_SETFD: 251 case F_SETFL: 252 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 253 break; 254 case F_GETFD: 255 case F_GETFL: 256 ret = __sys_fcntl(fd, cmd); 257 break; 258 default: 259 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 260 } 261 va_end(ap); 262 263 _thr_cancel_leave(curthread); 264 265 return (ret); 266} 267 268__weak_reference(__fsync, fsync); 269 270int 271__fsync(int fd) 272{ 273 struct pthread *curthread = _get_curthread(); 274 int ret; 275 276 _thr_cancel_enter(curthread); 277 ret = __sys_fsync(fd); 278 _thr_cancel_leave(curthread); 279 280 return (ret); 281} 282 283__weak_reference(__msync, msync); 284 285int 286__msync(void *addr, size_t len, int flags) 287{ 288 struct pthread *curthread = _get_curthread(); 289 int ret; 290 291 _thr_cancel_enter(curthread); 292 ret = __sys_msync(addr, len, flags); 293 _thr_cancel_leave(curthread); 294 295 return ret; 296} 297 298__weak_reference(__nanosleep, nanosleep); 299 300int 301__nanosleep(const struct timespec *time_to_sleep, 302 struct timespec *time_remaining) 303{ 304 struct pthread *curthread = _get_curthread(); 305 int ret; 306 307 _thr_cancel_enter(curthread); 308 ret = __sys_nanosleep(time_to_sleep, time_remaining); 309 _thr_cancel_leave(curthread); 310 311 return (ret); 312} 313 314__weak_reference(__open, open); 315 316int 317__open(const char *path, int flags,...) 318{ 319 struct pthread *curthread = _get_curthread(); 320 int ret; 321 int mode = 0; 322 va_list ap; 323 324 _thr_cancel_enter(curthread); 325 326 /* Check if the file is being created: */ 327 if (flags & O_CREAT) { 328 /* Get the creation mode: */ 329 va_start(ap, flags); 330 mode = va_arg(ap, int); 331 va_end(ap); 332 } 333 334 ret = __sys_open(path, flags, mode); 335 336 _thr_cancel_leave(curthread); 337 338 return ret; 339} 340 341__weak_reference(__poll, poll); 342 343int 344__poll(struct pollfd *fds, unsigned int nfds, int timeout) 345{ 346 struct pthread *curthread = _get_curthread(); 347 int ret; 348 349 _thr_cancel_enter(curthread); 350 ret = __sys_poll(fds, nfds, timeout); 351 _thr_cancel_leave(curthread); 352 353 return ret; 354} 355 356__weak_reference(___pselect, pselect); 357 358int 359___pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 360 const struct timespec *timo, const sigset_t *mask) 361{ 362 struct pthread *curthread = _get_curthread(); 363 int ret; 364 365 _thr_cancel_enter(curthread); 366 ret = __pselect(count, rfds, wfds, efds, timo, mask); 367 _thr_cancel_leave(curthread); 368 369 return (ret); 370} 371 372__weak_reference(__read, read); 373 374ssize_t 375__read(int fd, void *buf, size_t nbytes) 376{ 377 struct pthread *curthread = _get_curthread(); 378 ssize_t ret; 379 380 _thr_cancel_enter(curthread); 381 ret = __sys_read(fd, buf, nbytes); 382 _thr_cancel_leave(curthread); 383 384 return ret; 385} 386 387__weak_reference(__readv, readv); 388 389ssize_t 390__readv(int fd, const struct iovec *iov, int iovcnt) 391{ 392 struct pthread *curthread = _get_curthread(); 393 ssize_t ret; 394 395 _thr_cancel_enter(curthread); 396 ret = __sys_readv(fd, iov, iovcnt); 397 _thr_cancel_leave(curthread); 398 399 return ret; 400} 401 402__weak_reference(__recvfrom, recvfrom); 403 404ssize_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 ssize_t ret; 410 411 _thr_cancel_enter(curthread); 412 ret = __sys_recvfrom(s, b, l, f, from, fl); 413 _thr_cancel_leave(curthread); 414 return (ret); 415} 416 417__weak_reference(__recvmsg, recvmsg); 418 419ssize_t 420__recvmsg(int s, struct msghdr *m, int f) 421{ 422 struct pthread *curthread = _get_curthread(); 423 ssize_t ret; 424 425 _thr_cancel_enter(curthread); 426 ret = __sys_recvmsg(s, m, f); 427 _thr_cancel_leave(curthread); 428 return (ret); 429} 430 431__weak_reference(__select, select); 432 433int 434__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 435 struct timeval *timeout) 436{ 437 struct pthread *curthread = _get_curthread(); 438 int ret; 439 440 _thr_cancel_enter(curthread); 441 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 442 _thr_cancel_leave(curthread); 443 return ret; 444} 445 446__weak_reference(__sendmsg, sendmsg); 447 448ssize_t 449__sendmsg(int s, const struct msghdr *m, int f) 450{ 451 struct pthread *curthread = _get_curthread(); 452 ssize_t ret; 453 454 _thr_cancel_enter(curthread); 455 ret = __sys_sendmsg(s, m, f); 456 _thr_cancel_leave(curthread); 457 return (ret); 458} 459 460__weak_reference(__sendto, sendto); 461 462ssize_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 = _get_curthread(); 467 ssize_t ret; 468 469 _thr_cancel_enter(curthread); 470 ret = __sys_sendto(s, m, l, f, t, tl); 471 _thr_cancel_leave(curthread); 472 return (ret); 473} 474 475__weak_reference(___sleep, sleep); 476 477unsigned int 478___sleep(unsigned int seconds) 479{ 480 struct pthread *curthread = _get_curthread(); 481 unsigned int ret; 482 483 _thr_cancel_enter(curthread); 484 ret = __sleep(seconds); 485 _thr_cancel_leave(curthread); 486 487 return (ret); 488} 489 490__weak_reference(___system, system); 491 492int 493___system(const char *string) 494{ 495 struct pthread *curthread = _get_curthread(); 496 int ret; 497 498 _thr_cancel_enter(curthread); 499 ret = __system(string); 500 _thr_cancel_leave(curthread); 501 502 return ret; 503} 504 505__weak_reference(___tcdrain, tcdrain); 506 507int 508___tcdrain(int fd) 509{ 510 struct pthread *curthread = _get_curthread(); 511 int ret; 512 513 _thr_cancel_enter(curthread); 514 ret = __tcdrain(fd); 515 _thr_cancel_leave(curthread); 516 517 return (ret); 518} 519 520__weak_reference(___usleep, usleep); 521 522int 523___usleep(useconds_t useconds) 524{ 525 struct pthread *curthread = _get_curthread(); 526 int ret; 527 528 _thr_cancel_enter(curthread); 529 ret = __usleep(useconds); 530 _thr_cancel_leave(curthread); 531 532 return (ret); 533} 534 535__weak_reference(_vfork, vfork); 536 537int 538_vfork(void) 539{ 540 return (fork()); 541} 542 543__weak_reference(___wait, wait); 544 545pid_t 546___wait(int *istat) 547{ 548 struct pthread *curthread = _get_curthread(); 549 pid_t ret; 550 551 _thr_cancel_enter(curthread); 552 ret = __wait(istat); 553 _thr_cancel_leave(curthread); 554 555 return ret; 556} 557 558__weak_reference(__wait3, wait3); 559 560pid_t 561__wait3(int *status, int options, struct rusage *rusage) 562{ 563 struct pthread *curthread = _get_curthread(); 564 pid_t ret; 565 566 _thr_cancel_enter(curthread); 567 ret = _wait4(WAIT_ANY, status, options, rusage); 568 _thr_cancel_leave(curthread); 569 570 return (ret); 571} 572 573__weak_reference(__wait4, wait4); 574 575pid_t 576__wait4(pid_t pid, int *status, int options, struct rusage *rusage) 577{ 578 struct pthread *curthread = _get_curthread(); 579 pid_t ret; 580 581 _thr_cancel_enter(curthread); 582 ret = __sys_wait4(pid, status, options, rusage); 583 _thr_cancel_leave(curthread); 584 585 return ret; 586} 587 588__weak_reference(___waitpid, waitpid); 589 590pid_t 591___waitpid(pid_t wpid, int *status, int options) 592{ 593 struct pthread *curthread = _get_curthread(); 594 pid_t ret; 595 596 _thr_cancel_enter(curthread); 597 ret = __waitpid(wpid, status, options); 598 _thr_cancel_leave(curthread); 599 600 return ret; 601} 602 603__weak_reference(__write, write); 604 605ssize_t 606__write(int fd, const void *buf, size_t nbytes) 607{ 608 struct pthread *curthread = _get_curthread(); 609 ssize_t ret; 610 611 _thr_cancel_enter(curthread); 612 ret = __sys_write(fd, buf, nbytes); 613 _thr_cancel_leave(curthread); 614 615 return ret; 616} 617 618__weak_reference(__writev, writev); 619 620ssize_t 621__writev(int fd, const struct iovec *iov, int iovcnt) 622{ 623 struct pthread *curthread = _get_curthread(); 624 ssize_t ret; 625 626 _thr_cancel_enter(curthread); 627 ret = __sys_writev(fd, iov, iovcnt); 628 _thr_cancel_leave(curthread); 629 630 return ret; 631} 632