lib/libc_r/uthread/uthread_pselect.c

   1 /*-
   2  * Copyright (c) 2002 Daniel M. Eischen <deischen@freebsd.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  */
  27
  28 #include <sys/cdefs.h>
  29 __FBSDID("$FreeBSD$");
  30
  31 #include <sys/select.h>
  32 #include <sys/time.h>
  33
  34 #include <errno.h>
  35 #include <signal.h>
  36 #include <pthread.h>
  37
  38 #include "pthread_private.h"
  39
  40 extern int __pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds,
  41                 const struct timespec *timo, const sigset_t *mask);
  42
  43 __weak_reference(_pselect, pselect);
  44
  45 int
  46 _pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds,
  47         const struct timespec *timo, const sigset_t *mask)
  48 {
  49         int ret;
  50
  51         _thread_enter_cancellation_point();
  52         ret = __pselect(count, rfds, wfds, efds, timo, mask);
  53         _thread_leave_cancellation_point();
  54
  55         return (ret);
  56 }