thr_syscalls.c revision 165967
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 165967 2007-01-12 07:26:21Z imp $ 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. Neither the name of the author nor the names of any co-contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 */ 63 64#include "namespace.h" 65#include <sys/types.h> 66#include <sys/mman.h> 67#include <sys/param.h> 68#include <sys/select.h> 69#include <sys/signalvar.h> 70#include <sys/socket.h> 71#include <sys/stat.h> 72#include <sys/time.h> 73#include <sys/uio.h> 74#include <sys/wait.h> 75#include <aio.h> 76#include <dirent.h> 77#include <errno.h> 78#include <fcntl.h> 79#include <poll.h> 80#include <signal.h> 81#include <stdarg.h> 82#include <stdio.h> 83#include <stdlib.h> 84#include <string.h> 85#include <termios.h> 86#include <unistd.h> 87#include <pthread.h> 88#include "un-namespace.h" 89 90#include "thr_private.h" 91 92extern int __creat(const char *, mode_t); 93extern int __pselect(int, fd_set *, fd_set *, fd_set *, 94 const struct timespec *, const sigset_t *); 95extern unsigned __sleep(unsigned int); 96extern int __system(const char *); 97extern int __tcdrain(int); 98extern int __usleep(useconds_t); 99extern pid_t __wait(int *); 100extern pid_t __waitpid(pid_t, int *, int); 101extern int __sys_aio_suspend(const struct aiocb * const[], int, 102 const struct timespec *); 103extern int __sys_accept(int, struct sockaddr *, socklen_t *); 104extern int __sys_connect(int, const struct sockaddr *, socklen_t); 105extern int __sys_fsync(int); 106extern int __sys_msync(void *, size_t, int); 107extern int __sys_poll(struct pollfd *, unsigned, int); 108extern ssize_t __sys_recv(int, void *, size_t, int); 109extern ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); 110extern ssize_t __sys_recvmsg(int, struct msghdr *, int); 111extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 112extern int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, 113 off_t *, int); 114extern ssize_t __sys_sendmsg(int, const struct msghdr *, int); 115extern ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); 116extern ssize_t __sys_readv(int, const struct iovec *, int); 117extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 118extern ssize_t __sys_writev(int, const struct iovec *, int); 119 120int ___creat(const char *, mode_t); 121int ___pselect(int, fd_set *, fd_set *, fd_set *, 122 const struct timespec *, const sigset_t *); 123unsigned ___sleep(unsigned); 124int ___system(const char *); 125int ___tcdrain(int); 126int ___usleep(useconds_t useconds); 127pid_t ___wait(int *); 128pid_t ___waitpid(pid_t, int *, int); 129int __accept(int, struct sockaddr *, socklen_t *); 130int __aio_suspend(const struct aiocb * const iocbs[], int, 131 const struct timespec *); 132int __close(int); 133int __connect(int, const struct sockaddr *, socklen_t); 134int __fcntl(int, int,...); 135int __fsync(int); 136int __msync(void *, size_t, int); 137int __nanosleep(const struct timespec *, struct timespec *); 138int __open(const char *, int,...); 139int __poll(struct pollfd *, unsigned int, int); 140ssize_t __read(int, void *buf, size_t); 141ssize_t __readv(int, const struct iovec *, int); 142ssize_t __recvfrom(int, void *, size_t, int f, struct sockaddr *, socklen_t *); 143ssize_t __recvmsg(int, struct msghdr *, int); 144int __select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 145ssize_t __sendmsg(int, const struct msghdr *, int); 146ssize_t __sendto(int, const void *, size_t, int, 147 const struct sockaddr *, socklen_t); 148pid_t __wait3(int *, int, struct rusage *); 149pid_t __wait4(pid_t, int *, int, struct rusage *); 150ssize_t __write(int, const void *, size_t); 151ssize_t __writev(int, const struct iovec *, int); 152int _vfork(void); 153 154__weak_reference(__accept, accept); 155 156int 157__accept(int s, struct sockaddr *addr, socklen_t *addrlen) 158{ 159 struct pthread *curthread; 160 int ret; 161 162 curthread = _get_curthread(); 163 _thr_cancel_enter(curthread); 164 ret = __sys_accept(s, addr, addrlen); 165 _thr_cancel_leave(curthread); 166 167 return (ret); 168} 169 170__weak_reference(__aio_suspend, aio_suspend); 171 172int 173__aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 174 timespec *timeout) 175{ 176 struct pthread *curthread = _get_curthread(); 177 int ret; 178 179 _thr_cancel_enter(curthread); 180 ret = __sys_aio_suspend(iocbs, niocb, timeout); 181 _thr_cancel_leave(curthread); 182 183 return (ret); 184} 185 186__weak_reference(__close, close); 187 188int 189__close(int fd) 190{ 191 struct pthread *curthread = _get_curthread(); 192 int ret; 193 194 _thr_cancel_enter(curthread); 195 ret = __sys_close(fd); 196 _thr_cancel_leave(curthread); 197 198 return (ret); 199} 200 201__weak_reference(__connect, connect); 202 203int 204__connect(int fd, const struct sockaddr *name, socklen_t namelen) 205{ 206 struct pthread *curthread = _get_curthread(); 207 int ret; 208 209 _thr_cancel_enter(curthread); 210 ret = __sys_connect(fd, name, namelen); 211 _thr_cancel_leave(curthread); 212 213 return (ret); 214} 215 216__weak_reference(___creat, creat); 217 218int 219___creat(const char *path, mode_t mode) 220{ 221 struct pthread *curthread = _get_curthread(); 222 int ret; 223 224 _thr_cancel_enter(curthread); 225 ret = __creat(path, mode); 226 _thr_cancel_leave(curthread); 227 228 return ret; 229} 230 231__weak_reference(__fcntl, fcntl); 232 233int 234__fcntl(int fd, int cmd,...) 235{ 236 struct pthread *curthread = _get_curthread(); 237 int ret; 238 va_list ap; 239 240 _thr_cancel_enter(curthread); 241 242 va_start(ap, cmd); 243 switch (cmd) { 244 case F_DUPFD: 245 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 246 break; 247 case F_SETFD: 248 case F_SETFL: 249 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 250 break; 251 case F_GETFD: 252 case F_GETFL: 253 ret = __sys_fcntl(fd, cmd); 254 break; 255 default: 256 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 257 } 258 va_end(ap); 259 260 _thr_cancel_leave(curthread); 261 262 return (ret); 263} 264 265__weak_reference(__fsync, fsync); 266 267int 268__fsync(int fd) 269{ 270 struct pthread *curthread = _get_curthread(); 271 int ret; 272 273 _thr_cancel_enter(curthread); 274 ret = __sys_fsync(fd); 275 _thr_cancel_leave(curthread); 276 277 return (ret); 278} 279 280__weak_reference(__msync, msync); 281 282int 283__msync(void *addr, size_t len, int flags) 284{ 285 struct pthread *curthread = _get_curthread(); 286 int ret; 287 288 _thr_cancel_enter(curthread); 289 ret = __sys_msync(addr, len, flags); 290 _thr_cancel_leave(curthread); 291 292 return ret; 293} 294 295__weak_reference(__nanosleep, nanosleep); 296 297int 298__nanosleep(const struct timespec *time_to_sleep, 299 struct timespec *time_remaining) 300{ 301 struct pthread *curthread = _get_curthread(); 302 int ret; 303 304 _thr_cancel_enter(curthread); 305 ret = __sys_nanosleep(time_to_sleep, time_remaining); 306 _thr_cancel_leave(curthread); 307 308 return (ret); 309} 310 311__weak_reference(__open, open); 312 313int 314__open(const char *path, int flags,...) 315{ 316 struct pthread *curthread = _get_curthread(); 317 int ret; 318 int mode = 0; 319 va_list ap; 320 321 _thr_cancel_enter(curthread); 322 323 /* Check if the file is being created: */ 324 if (flags & O_CREAT) { 325 /* Get the creation mode: */ 326 va_start(ap, flags); 327 mode = va_arg(ap, int); 328 va_end(ap); 329 } 330 331 ret = __sys_open(path, flags, mode); 332 333 _thr_cancel_leave(curthread); 334 335 return ret; 336} 337 338__weak_reference(__poll, poll); 339 340int 341__poll(struct pollfd *fds, unsigned int nfds, int timeout) 342{ 343 struct pthread *curthread = _get_curthread(); 344 int ret; 345 346 _thr_cancel_enter(curthread); 347 ret = __sys_poll(fds, nfds, timeout); 348 _thr_cancel_leave(curthread); 349 350 return ret; 351} 352 353__weak_reference(___pselect, pselect); 354 355int 356___pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 357 const struct timespec *timo, const sigset_t *mask) 358{ 359 struct pthread *curthread = _get_curthread(); 360 int ret; 361 362 _thr_cancel_enter(curthread); 363 ret = __pselect(count, rfds, wfds, efds, timo, mask); 364 _thr_cancel_leave(curthread); 365 366 return (ret); 367} 368 369__weak_reference(__read, read); 370 371ssize_t 372__read(int fd, void *buf, size_t nbytes) 373{ 374 struct pthread *curthread = _get_curthread(); 375 ssize_t ret; 376 377 _thr_cancel_enter(curthread); 378 ret = __sys_read(fd, buf, nbytes); 379 _thr_cancel_leave(curthread); 380 381 return ret; 382} 383 384__weak_reference(__readv, readv); 385 386ssize_t 387__readv(int fd, const struct iovec *iov, int iovcnt) 388{ 389 struct pthread *curthread = _get_curthread(); 390 ssize_t ret; 391 392 _thr_cancel_enter(curthread); 393 ret = __sys_readv(fd, iov, iovcnt); 394 _thr_cancel_leave(curthread); 395 396 return ret; 397} 398 399__weak_reference(__recvfrom, recvfrom); 400 401ssize_t 402__recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 403 socklen_t *fl) 404{ 405 struct pthread *curthread = _get_curthread(); 406 ssize_t ret; 407 408 _thr_cancel_enter(curthread); 409 ret = __sys_recvfrom(s, b, l, f, from, fl); 410 _thr_cancel_leave(curthread); 411 return (ret); 412} 413 414__weak_reference(__recvmsg, recvmsg); 415 416ssize_t 417__recvmsg(int s, struct msghdr *m, int f) 418{ 419 struct pthread *curthread = _get_curthread(); 420 ssize_t ret; 421 422 _thr_cancel_enter(curthread); 423 ret = __sys_recvmsg(s, m, f); 424 _thr_cancel_leave(curthread); 425 return (ret); 426} 427 428__weak_reference(__select, select); 429 430int 431__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 432 struct timeval *timeout) 433{ 434 struct pthread *curthread = _get_curthread(); 435 int ret; 436 437 _thr_cancel_enter(curthread); 438 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 439 _thr_cancel_leave(curthread); 440 return ret; 441} 442 443__weak_reference(__sendmsg, sendmsg); 444 445ssize_t 446__sendmsg(int s, const struct msghdr *m, int f) 447{ 448 struct pthread *curthread = _get_curthread(); 449 ssize_t ret; 450 451 _thr_cancel_enter(curthread); 452 ret = __sys_sendmsg(s, m, f); 453 _thr_cancel_leave(curthread); 454 return (ret); 455} 456 457__weak_reference(__sendto, sendto); 458 459ssize_t 460__sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 461 socklen_t tl) 462{ 463 struct pthread *curthread = _get_curthread(); 464 ssize_t ret; 465 466 _thr_cancel_enter(curthread); 467 ret = __sys_sendto(s, m, l, f, t, tl); 468 _thr_cancel_leave(curthread); 469 return (ret); 470} 471 472__weak_reference(___sleep, sleep); 473 474unsigned int 475___sleep(unsigned int seconds) 476{ 477 struct pthread *curthread = _get_curthread(); 478 unsigned int ret; 479 480 _thr_cancel_enter(curthread); 481 ret = __sleep(seconds); 482 _thr_cancel_leave(curthread); 483 484 return (ret); 485} 486 487__weak_reference(___system, system); 488 489int 490___system(const char *string) 491{ 492 struct pthread *curthread = _get_curthread(); 493 int ret; 494 495 _thr_cancel_enter(curthread); 496 ret = __system(string); 497 _thr_cancel_leave(curthread); 498 499 return ret; 500} 501 502__weak_reference(___tcdrain, tcdrain); 503 504int 505___tcdrain(int fd) 506{ 507 struct pthread *curthread = _get_curthread(); 508 int ret; 509 510 _thr_cancel_enter(curthread); 511 ret = __tcdrain(fd); 512 _thr_cancel_leave(curthread); 513 514 return (ret); 515} 516 517__weak_reference(___usleep, usleep); 518 519int 520___usleep(useconds_t useconds) 521{ 522 struct pthread *curthread = _get_curthread(); 523 int ret; 524 525 _thr_cancel_enter(curthread); 526 ret = __usleep(useconds); 527 _thr_cancel_leave(curthread); 528 529 return (ret); 530} 531 532__weak_reference(_vfork, vfork); 533 534int 535_vfork(void) 536{ 537 return (fork()); 538} 539 540__weak_reference(___wait, wait); 541 542pid_t 543___wait(int *istat) 544{ 545 struct pthread *curthread = _get_curthread(); 546 pid_t ret; 547 548 _thr_cancel_enter(curthread); 549 ret = __wait(istat); 550 _thr_cancel_leave(curthread); 551 552 return ret; 553} 554 555__weak_reference(__wait3, wait3); 556 557pid_t 558__wait3(int *status, int options, struct rusage *rusage) 559{ 560 struct pthread *curthread = _get_curthread(); 561 pid_t ret; 562 563 _thr_cancel_enter(curthread); 564 ret = _wait4(WAIT_ANY, status, options, rusage); 565 _thr_cancel_leave(curthread); 566 567 return (ret); 568} 569 570__weak_reference(__wait4, wait4); 571 572pid_t 573__wait4(pid_t pid, int *status, int options, struct rusage *rusage) 574{ 575 struct pthread *curthread = _get_curthread(); 576 pid_t ret; 577 578 _thr_cancel_enter(curthread); 579 ret = __sys_wait4(pid, status, options, rusage); 580 _thr_cancel_leave(curthread); 581 582 return ret; 583} 584 585__weak_reference(___waitpid, waitpid); 586 587pid_t 588___waitpid(pid_t wpid, int *status, int options) 589{ 590 struct pthread *curthread = _get_curthread(); 591 pid_t ret; 592 593 _thr_cancel_enter(curthread); 594 ret = __waitpid(wpid, status, options); 595 _thr_cancel_leave(curthread); 596 597 return ret; 598} 599 600__weak_reference(__write, write); 601 602ssize_t 603__write(int fd, const void *buf, size_t nbytes) 604{ 605 struct pthread *curthread = _get_curthread(); 606 ssize_t ret; 607 608 _thr_cancel_enter(curthread); 609 ret = __sys_write(fd, buf, nbytes); 610 _thr_cancel_leave(curthread); 611 612 return ret; 613} 614 615__weak_reference(__writev, writev); 616 617ssize_t 618__writev(int fd, const struct iovec *iov, int iovcnt) 619{ 620 struct pthread *curthread = _get_curthread(); 621 ssize_t ret; 622 623 _thr_cancel_enter(curthread); 624 ret = __sys_writev(fd, iov, iovcnt); 625 _thr_cancel_leave(curthread); 626 627 return ret; 628} 629