/* * Copyright (c) 2000 Jason Evans . * Copyright (c) 2002 Daniel M. Eischen * Copyright (c) 2003 Jeff Roberson * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice(s), this list of conditions and the following disclaimer as * the first lines of this file unmodified other than the possible * addition of one or more copyright notices. * 2. Redistributions in binary form must reproduce the above copyright * notice(s), this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: head/lib/libthr/thread/thr_syscalls.c 115260 2003-05-23 09:48:20Z mtm $ */ /* * Copyright (c) 1995-1998 John Birrell * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by John Birrell. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "thr_private.h" extern int __creat(const char *, mode_t); extern int __sleep(unsigned int); extern int __sys_nanosleep(const struct timespec *, struct timespec *); extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); extern int __system(const char *); extern int __tcdrain(int); extern pid_t __wait(int *); extern pid_t _wait4(pid_t, int *, int, struct rusage *); extern pid_t __waitpid(pid_t, int *, int); __weak_reference(_aio_suspend, aio_suspend); int _aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct timespec *timeout) { int ret; _thread_enter_cancellation_point(); ret = __sys_aio_suspend(iocbs, niocb, timeout); _thread_leave_cancellation_point(); return ret; } __weak_reference(__close, close); int __close(int fd) { int ret; _thread_enter_cancellation_point(); ret = __sys_close(fd); _thread_leave_cancellation_point(); return ret; } __weak_reference(___creat, creat); int ___creat(const char *path, mode_t mode) { int ret; _thread_enter_cancellation_point(); ret = __creat(path, mode); _thread_leave_cancellation_point(); return ret; } __weak_reference(__fcntl, fcntl); int __fcntl(int fd, int cmd,...) { int ret; va_list ap; _thread_enter_cancellation_point(); va_start(ap, cmd); switch (cmd) { case F_DUPFD: case F_SETFD: case F_SETFL: ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); break; case F_GETFD: case F_GETFL: ret = __sys_fcntl(fd, cmd); break; default: ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); } va_end(ap); _thread_leave_cancellation_point(); return ret; } __weak_reference(__fsync, fsync); int __fsync(int fd) { int ret; _thread_enter_cancellation_point(); ret = __sys_fsync(fd); _thread_leave_cancellation_point(); return ret; } __weak_reference(__msync, msync); int __msync(void *addr, size_t len, int flags) { int ret; _thread_enter_cancellation_point(); ret = __sys_msync(addr, len, flags); _thread_leave_cancellation_point(); return ret; } __weak_reference(_nanosleep, nanosleep); int _nanosleep(const struct timespec * time_to_sleep, struct timespec * time_remaining) { int ret; _thread_enter_cancellation_point(); ret = __sys_nanosleep(time_to_sleep, time_remaining); _thread_leave_cancellation_point(); return ret; } __weak_reference(__open, open); int __open(const char *path, int flags,...) { int ret; int mode = 0; va_list ap; _thread_enter_cancellation_point(); /* Check if the file is being created: */ if (flags & O_CREAT) { /* Get the creation mode: */ va_start(ap, flags); mode = va_arg(ap, int); va_end(ap); } ret = __sys_open(path, flags, mode); _thread_leave_cancellation_point(); return ret; } __weak_reference(__poll, poll); int __poll(struct pollfd *fds, unsigned int nfds, int timeout) { int ret; _thread_enter_cancellation_point(); ret = __sys_poll(fds, nfds, timeout); _thread_leave_cancellation_point(); return ret; } extern int __pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, const struct timespec *timo, const sigset_t *mask); int pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, const struct timespec *timo, const sigset_t *mask) { int ret; _thread_enter_cancellation_point(); ret = __pselect(count, rfds, wfds, efds, timo, mask); _thread_leave_cancellation_point(); return (ret); } __weak_reference(__read, read); ssize_t __read(int fd, void *buf, size_t nbytes) { ssize_t ret; _thread_enter_cancellation_point(); ret = __sys_read(fd, buf, nbytes); _thread_leave_cancellation_point(); return ret; } __weak_reference(__readv, readv); ssize_t __readv(int fd, const struct iovec *iov, int iovcnt) { ssize_t ret; _thread_enter_cancellation_point(); ret = __sys_readv(fd, iov, iovcnt); _thread_leave_cancellation_point(); return ret; } __weak_reference(__select, select); int __select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout) { int ret; _thread_enter_cancellation_point(); ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); _thread_leave_cancellation_point(); return ret; } __weak_reference(_sleep, sleep); unsigned int _sleep(unsigned int seconds) { unsigned int ret; _thread_enter_cancellation_point(); ret = __sleep(seconds); _thread_leave_cancellation_point(); return ret; } __weak_reference(_system, system); int _system(const char *string) { int ret; _thread_enter_cancellation_point(); ret = __system(string); _thread_leave_cancellation_point(); return ret; } __weak_reference(_tcdrain, tcdrain); int _tcdrain(int fd) { int ret; _thread_enter_cancellation_point(); ret = __tcdrain(fd); _thread_leave_cancellation_point(); return ret; } __weak_reference(_wait, wait); pid_t _wait(int *istat) { pid_t ret; _thread_enter_cancellation_point(); ret = __wait(istat); _thread_leave_cancellation_point(); return ret; } __weak_reference(__wait4, wait4); pid_t __wait4(pid_t pid, int *istat, int options, struct rusage *rusage) { pid_t ret; _thread_enter_cancellation_point(); ret = _wait4(pid, istat, options, rusage); _thread_leave_cancellation_point(); return ret; } __weak_reference(_waitpid, waitpid); pid_t _waitpid(pid_t wpid, int *status, int options) { pid_t ret; _thread_enter_cancellation_point(); ret = __waitpid(wpid, status, options); _thread_leave_cancellation_point(); return ret; } __weak_reference(__write, write); ssize_t __write(int fd, const void *buf, size_t nbytes) { ssize_t ret; _thread_enter_cancellation_point(); ret = __sys_write(fd, buf, nbytes); _thread_leave_cancellation_point(); return ret; } __weak_reference(__writev, writev); ssize_t __writev(int fd, const struct iovec *iov, int iovcnt) { ssize_t ret; _thread_enter_cancellation_point(); ret = __sys_writev(fd, iov, iovcnt); _thread_leave_cancellation_point(); return ret; }