diff options
Diffstat (limited to 'lib/libkse/thread/thr_select.c')
-rw-r--r-- | lib/libkse/thread/thr_select.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/libkse/thread/thr_select.c b/lib/libkse/thread/thr_select.c new file mode 100644 index 0000000..6d0219c --- /dev/null +++ b/lib/libkse/thread/thr_select.c @@ -0,0 +1,68 @@ +/* + * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> + * 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. 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. + * + * $FreeBSD$ + */ + +#include "namespace.h" +#include <unistd.h> +#include <errno.h> +#include <poll.h> +#include <stdlib.h> +#include <string.h> +#include <sys/param.h> +#include <sys/types.h> +#include <sys/time.h> +#include <sys/fcntl.h> +#include <pthread.h> +#include "un-namespace.h" +#include "thr_private.h" + +int __select(int numfds, fd_set *readfds, fd_set *writefds, + fd_set *exceptfds, struct timeval *timeout); + +__weak_reference(__select, select); + +int +__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, + struct timeval *timeout) +{ + struct pthread *curthread = _get_curthread(); + struct timespec ts; + int ret; + + if (numfds == 0 && timeout != NULL) { + TIMEVAL_TO_TIMESPEC(timeout, &ts); + ret = _nanosleep(&ts, NULL); + } else { + _thr_cancel_enter(curthread); + ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); + _thr_cancel_leave(curthread, 1); + } + return (ret); +} |