thr_syscalls.c revision 115260
1112918Sjeff/* 2112918Sjeff * Copyright (c) 2000 Jason Evans <jasone@freebsd.org>. 3112918Sjeff * Copyright (c) 2002 Daniel M. Eischen <deischen@freebsd.org> 4112918Sjeff * Copyright (c) 2003 Jeff Roberson <jeff@freebsd.org> 5112918Sjeff * All rights reserved. 6112918Sjeff * 7112918Sjeff * Redistribution and use in source and binary forms, with or without 8112918Sjeff * modification, are permitted provided that the following conditions 9112918Sjeff * are met: 10112918Sjeff * 1. Redistributions of source code must retain the above copyright 11112918Sjeff * notice(s), this list of conditions and the following disclaimer as 12112918Sjeff * the first lines of this file unmodified other than the possible 13112918Sjeff * addition of one or more copyright notices. 14112918Sjeff * 2. Redistributions in binary form must reproduce the above copyright 15112918Sjeff * notice(s), this list of conditions and the following disclaimer in 16112918Sjeff * the documentation and/or other materials provided with the 17112918Sjeff * distribution. 18112918Sjeff * 19112918Sjeff * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 20112918Sjeff * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21112918Sjeff * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22112918Sjeff * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 23112918Sjeff * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24112918Sjeff * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25112918Sjeff * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 26112918Sjeff * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27112918Sjeff * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 28112918Sjeff * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 29112918Sjeff * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30112918Sjeff * 31112918Sjeff * $FreeBSD: head/lib/libthr/thread/thr_syscalls.c 115260 2003-05-23 09:48:20Z mtm $ 32112918Sjeff */ 33112918Sjeff 34112918Sjeff/* 35112918Sjeff * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 36112918Sjeff * All rights reserved. 37112918Sjeff * 38112918Sjeff * Redistribution and use in source and binary forms, with or without 39112918Sjeff * modification, are permitted provided that the following conditions 40112918Sjeff * are met: 41112918Sjeff * 1. Redistributions of source code must retain the above copyright 42112918Sjeff * notice, this list of conditions and the following disclaimer. 43112918Sjeff * 2. Redistributions in binary form must reproduce the above copyright 44112918Sjeff * notice, this list of conditions and the following disclaimer in the 45112918Sjeff * documentation and/or other materials provided with the distribution. 46112918Sjeff * 3. All advertising materials mentioning features or use of this software 47112918Sjeff * must display the following acknowledgement: 48112918Sjeff * This product includes software developed by John Birrell. 49112918Sjeff * 4. Neither the name of the author nor the names of any co-contributors 50112918Sjeff * may be used to endorse or promote products derived from this software 51112918Sjeff * without specific prior written permission. 52112918Sjeff * 53112918Sjeff * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 54112918Sjeff * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55112918Sjeff * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56112918Sjeff * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 57112918Sjeff * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58112918Sjeff * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59112918Sjeff * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60112918Sjeff * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61112918Sjeff * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62112918Sjeff * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63112918Sjeff * SUCH DAMAGE. 64112918Sjeff * 65112918Sjeff */ 66112918Sjeff 67112918Sjeff#include <sys/cdefs.h> 68112918Sjeff#include <sys/fcntl.h> 69112918Sjeff#include <sys/mman.h> 70112918Sjeff#include <sys/param.h> 71112918Sjeff#include <sys/select.h> 72112918Sjeff#include <sys/time.h> 73112918Sjeff#include <sys/types.h> 74112918Sjeff#include <sys/uio.h> 75112918Sjeff#include <sys/wait.h> 76112918Sjeff 77112918Sjeff#include <aio.h> 78112918Sjeff#include <dirent.h> 79112918Sjeff#include <errno.h> 80112918Sjeff#include <fcntl.h> 81112918Sjeff#include <poll.h> 82112918Sjeff#include <pthread.h> 83112918Sjeff#include <signal.h> 84112918Sjeff#include <stdarg.h> 85112918Sjeff#include <stdio.h> 86112918Sjeff#include <stdlib.h> 87112918Sjeff#include <string.h> 88112918Sjeff#include <termios.h> 89112918Sjeff#include <unistd.h> 90112918Sjeff 91112918Sjeff#include "thr_private.h" 92112918Sjeff 93115260Smtmextern int __creat(const char *, mode_t); 94115260Smtmextern int __sleep(unsigned int); 95115260Smtmextern int __sys_nanosleep(const struct timespec *, struct timespec *); 96115260Smtmextern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 97115260Smtmextern int __system(const char *); 98115260Smtmextern int __tcdrain(int); 99115260Smtmextern pid_t __wait(int *); 100115260Smtmextern pid_t _wait4(pid_t, int *, int, struct rusage *); 101115260Smtmextern pid_t __waitpid(pid_t, int *, int); 102115260Smtm 103112918Sjeff__weak_reference(_aio_suspend, aio_suspend); 104112918Sjeff 105112918Sjeffint 106112918Sjeff_aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 107112918Sjeff timespec *timeout) 108112918Sjeff{ 109112918Sjeff int ret; 110112918Sjeff 111112918Sjeff _thread_enter_cancellation_point(); 112112918Sjeff ret = __sys_aio_suspend(iocbs, niocb, timeout); 113112918Sjeff _thread_leave_cancellation_point(); 114112918Sjeff 115112918Sjeff return ret; 116112918Sjeff} 117112918Sjeff 118112918Sjeff__weak_reference(__close, close); 119112918Sjeff 120112918Sjeffint 121112918Sjeff__close(int fd) 122112918Sjeff{ 123112918Sjeff int ret; 124112918Sjeff 125112918Sjeff _thread_enter_cancellation_point(); 126112918Sjeff ret = __sys_close(fd); 127112918Sjeff _thread_leave_cancellation_point(); 128112918Sjeff 129112918Sjeff return ret; 130112918Sjeff} 131112918Sjeff__weak_reference(___creat, creat); 132112918Sjeff 133112918Sjeffint 134112918Sjeff___creat(const char *path, mode_t mode) 135112918Sjeff{ 136112918Sjeff int ret; 137112918Sjeff 138112918Sjeff _thread_enter_cancellation_point(); 139112918Sjeff ret = __creat(path, mode); 140112918Sjeff _thread_leave_cancellation_point(); 141112918Sjeff 142112918Sjeff return ret; 143112918Sjeff} 144112918Sjeff 145112918Sjeff__weak_reference(__fcntl, fcntl); 146112918Sjeff 147112918Sjeffint 148112918Sjeff__fcntl(int fd, int cmd,...) 149112918Sjeff{ 150112918Sjeff int ret; 151112918Sjeff va_list ap; 152112918Sjeff 153112918Sjeff _thread_enter_cancellation_point(); 154112918Sjeff 155112918Sjeff va_start(ap, cmd); 156112918Sjeff switch (cmd) { 157112918Sjeff case F_DUPFD: 158112918Sjeff case F_SETFD: 159112918Sjeff case F_SETFL: 160112918Sjeff ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 161112918Sjeff break; 162112918Sjeff case F_GETFD: 163112918Sjeff case F_GETFL: 164112918Sjeff ret = __sys_fcntl(fd, cmd); 165112918Sjeff break; 166112918Sjeff default: 167112918Sjeff ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 168112918Sjeff } 169112918Sjeff va_end(ap); 170112918Sjeff 171112918Sjeff _thread_leave_cancellation_point(); 172112918Sjeff 173112918Sjeff return ret; 174112918Sjeff} 175112918Sjeff 176112918Sjeff__weak_reference(__fsync, fsync); 177112918Sjeff 178112918Sjeffint 179112918Sjeff__fsync(int fd) 180112918Sjeff{ 181112918Sjeff int ret; 182112918Sjeff 183112918Sjeff _thread_enter_cancellation_point(); 184112918Sjeff ret = __sys_fsync(fd); 185112918Sjeff _thread_leave_cancellation_point(); 186112918Sjeff 187112918Sjeff return ret; 188112918Sjeff} 189112918Sjeff 190112918Sjeff__weak_reference(__msync, msync); 191112918Sjeff 192112918Sjeffint 193112918Sjeff__msync(void *addr, size_t len, int flags) 194112918Sjeff{ 195112918Sjeff int ret; 196112918Sjeff 197112918Sjeff _thread_enter_cancellation_point(); 198112918Sjeff ret = __sys_msync(addr, len, flags); 199112918Sjeff _thread_leave_cancellation_point(); 200112918Sjeff 201112918Sjeff return ret; 202112918Sjeff} 203112918Sjeff 204112918Sjeff__weak_reference(_nanosleep, nanosleep); 205112918Sjeff 206112918Sjeffint 207112918Sjeff_nanosleep(const struct timespec * time_to_sleep, struct timespec * 208112918Sjeff time_remaining) 209112918Sjeff{ 210112918Sjeff int ret; 211112918Sjeff 212112918Sjeff _thread_enter_cancellation_point(); 213112918Sjeff ret = __sys_nanosleep(time_to_sleep, time_remaining); 214112918Sjeff _thread_leave_cancellation_point(); 215112918Sjeff 216112918Sjeff return ret; 217112918Sjeff} 218112918Sjeff 219112918Sjeff__weak_reference(__open, open); 220112918Sjeff 221112918Sjeffint 222112918Sjeff__open(const char *path, int flags,...) 223112918Sjeff{ 224112918Sjeff int ret; 225112918Sjeff int mode = 0; 226112918Sjeff va_list ap; 227112918Sjeff 228112918Sjeff _thread_enter_cancellation_point(); 229112918Sjeff 230112918Sjeff /* Check if the file is being created: */ 231112918Sjeff if (flags & O_CREAT) { 232112918Sjeff /* Get the creation mode: */ 233112918Sjeff va_start(ap, flags); 234112918Sjeff mode = va_arg(ap, int); 235112918Sjeff va_end(ap); 236112918Sjeff } 237112918Sjeff 238112918Sjeff ret = __sys_open(path, flags, mode); 239112918Sjeff _thread_leave_cancellation_point(); 240112918Sjeff 241112918Sjeff return ret; 242112918Sjeff} 243112918Sjeff 244112918Sjeff__weak_reference(__poll, poll); 245112918Sjeff 246112918Sjeffint 247112918Sjeff__poll(struct pollfd *fds, unsigned int nfds, int timeout) 248112918Sjeff{ 249112918Sjeff int ret; 250112918Sjeff 251112918Sjeff _thread_enter_cancellation_point(); 252112918Sjeff ret = __sys_poll(fds, nfds, timeout); 253112918Sjeff _thread_leave_cancellation_point(); 254112918Sjeff 255112918Sjeff return ret; 256112918Sjeff} 257112918Sjeff 258112918Sjeffextern int __pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 259112918Sjeff const struct timespec *timo, const sigset_t *mask); 260112918Sjeff 261112918Sjeffint 262112918Sjeffpselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 263112918Sjeff const struct timespec *timo, const sigset_t *mask) 264112918Sjeff{ 265112918Sjeff int ret; 266112918Sjeff 267112918Sjeff _thread_enter_cancellation_point(); 268112918Sjeff ret = __pselect(count, rfds, wfds, efds, timo, mask); 269112918Sjeff _thread_leave_cancellation_point(); 270112918Sjeff 271112918Sjeff return (ret); 272112918Sjeff} 273112918Sjeff 274112918Sjeff__weak_reference(__read, read); 275112918Sjeff 276112918Sjeffssize_t 277112918Sjeff__read(int fd, void *buf, size_t nbytes) 278112918Sjeff{ 279112918Sjeff ssize_t ret; 280112918Sjeff 281112918Sjeff _thread_enter_cancellation_point(); 282112918Sjeff ret = __sys_read(fd, buf, nbytes); 283112918Sjeff _thread_leave_cancellation_point(); 284112918Sjeff 285112918Sjeff return ret; 286112918Sjeff} 287112918Sjeff 288112918Sjeff__weak_reference(__readv, readv); 289112918Sjeff 290112918Sjeffssize_t 291112918Sjeff__readv(int fd, const struct iovec *iov, int iovcnt) 292112918Sjeff{ 293112918Sjeff ssize_t ret; 294112918Sjeff 295112918Sjeff _thread_enter_cancellation_point(); 296112918Sjeff ret = __sys_readv(fd, iov, iovcnt); 297112918Sjeff _thread_leave_cancellation_point(); 298112918Sjeff 299112918Sjeff return ret; 300112918Sjeff} 301112918Sjeff 302112918Sjeff__weak_reference(__select, select); 303112918Sjeff 304112918Sjeffint 305112918Sjeff__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 306112918Sjeff struct timeval *timeout) 307112918Sjeff{ 308112918Sjeff int ret; 309112918Sjeff 310112918Sjeff _thread_enter_cancellation_point(); 311112918Sjeff ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 312112918Sjeff _thread_leave_cancellation_point(); 313112918Sjeff 314112918Sjeff return ret; 315112918Sjeff} 316112918Sjeff 317112918Sjeff__weak_reference(_sleep, sleep); 318112918Sjeff 319112918Sjeffunsigned int 320112918Sjeff_sleep(unsigned int seconds) 321112918Sjeff{ 322112918Sjeff unsigned int ret; 323112918Sjeff 324112918Sjeff _thread_enter_cancellation_point(); 325112918Sjeff ret = __sleep(seconds); 326112918Sjeff _thread_leave_cancellation_point(); 327112918Sjeff 328112918Sjeff return ret; 329112918Sjeff} 330112918Sjeff 331112918Sjeff__weak_reference(_system, system); 332112918Sjeff 333112918Sjeffint 334112918Sjeff_system(const char *string) 335112918Sjeff{ 336112918Sjeff int ret; 337112918Sjeff 338112918Sjeff _thread_enter_cancellation_point(); 339112918Sjeff ret = __system(string); 340112918Sjeff _thread_leave_cancellation_point(); 341112918Sjeff 342112918Sjeff return ret; 343112918Sjeff} 344112918Sjeff 345112918Sjeff 346112918Sjeff__weak_reference(_tcdrain, tcdrain); 347112918Sjeff 348112918Sjeffint 349112918Sjeff_tcdrain(int fd) 350112918Sjeff{ 351112918Sjeff int ret; 352112918Sjeff 353112918Sjeff _thread_enter_cancellation_point(); 354112918Sjeff ret = __tcdrain(fd); 355112918Sjeff _thread_leave_cancellation_point(); 356112918Sjeff 357112918Sjeff return ret; 358112918Sjeff} 359112918Sjeff 360112918Sjeff__weak_reference(_wait, wait); 361112918Sjeff 362112918Sjeffpid_t 363112918Sjeff_wait(int *istat) 364112918Sjeff{ 365112918Sjeff pid_t ret; 366112918Sjeff 367112918Sjeff _thread_enter_cancellation_point(); 368112918Sjeff ret = __wait(istat); 369112918Sjeff _thread_leave_cancellation_point(); 370112918Sjeff 371112918Sjeff return ret; 372112918Sjeff} 373112918Sjeff 374112918Sjeff__weak_reference(__wait4, wait4); 375112918Sjeff 376112918Sjeffpid_t 377112918Sjeff__wait4(pid_t pid, int *istat, int options, struct rusage *rusage) 378112918Sjeff{ 379112918Sjeff pid_t ret; 380112918Sjeff 381112918Sjeff _thread_enter_cancellation_point(); 382112918Sjeff ret = _wait4(pid, istat, options, rusage); 383112918Sjeff _thread_leave_cancellation_point(); 384112918Sjeff 385112918Sjeff return ret; 386112918Sjeff} 387112918Sjeff 388112918Sjeff__weak_reference(_waitpid, waitpid); 389112918Sjeff 390112918Sjeffpid_t 391112918Sjeff_waitpid(pid_t wpid, int *status, int options) 392112918Sjeff{ 393112918Sjeff pid_t ret; 394112918Sjeff 395112918Sjeff _thread_enter_cancellation_point(); 396112918Sjeff ret = __waitpid(wpid, status, options); 397112918Sjeff _thread_leave_cancellation_point(); 398112918Sjeff 399112918Sjeff return ret; 400112918Sjeff} 401112918Sjeff 402112918Sjeff__weak_reference(__write, write); 403112918Sjeff 404112918Sjeffssize_t 405112918Sjeff__write(int fd, const void *buf, size_t nbytes) 406112918Sjeff{ 407112918Sjeff ssize_t ret; 408112918Sjeff 409112918Sjeff _thread_enter_cancellation_point(); 410112918Sjeff ret = __sys_write(fd, buf, nbytes); 411112918Sjeff _thread_leave_cancellation_point(); 412112918Sjeff 413112918Sjeff return ret; 414112918Sjeff} 415112918Sjeff 416112918Sjeff__weak_reference(__writev, writev); 417112918Sjeff 418112918Sjeffssize_t 419112918Sjeff__writev(int fd, const struct iovec *iov, int iovcnt) 420112918Sjeff{ 421112918Sjeff ssize_t ret; 422112918Sjeff 423112918Sjeff _thread_enter_cancellation_point(); 424112918Sjeff ret = __sys_writev(fd, iov, iovcnt); 425112918Sjeff _thread_leave_cancellation_point(); 426112918Sjeff 427112918Sjeff return ret; 428112918Sjeff} 429