thr_writev.c revision 174112 
1139731Simp/*
2223440Sjhb * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
326159Sse * All rights reserved.
4223440Sjhb *
526159Sse * Redistribution and use in source and binary forms, with or without
6223440Sjhb * 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 * 3. Neither the name of the author nor the names of any co-contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/lib/libkse/thread/thr_writev.c 174112 2007-11-30 17:20:29Z deischen $
30 *
31 */
32#include <sys/types.h>
33#include <sys/fcntl.h>
34#include <sys/uio.h>
35#include <errno.h>
36#include <stdlib.h>
37#include <string.h>
38#include <unistd.h>
39#include <pthread.h>
40#include "thr_private.h"
41
42LT10_COMPAT_PRIVATE(__writev);
43LT10_COMPAT_DEFAULT(writev);
44
45ssize_t __writev(int fd, const struct iovec *iov, int iovcnt);
46
47__weak_reference(__writev, writev);
48
49ssize_t
50__writev(int fd, const struct iovec *iov, int iovcnt)
51{
52	struct pthread *curthread = _get_curthread();
53	ssize_t ret;
54
55	_thr_cancel_enter(curthread);
56	ret = __sys_writev(fd, iov, iovcnt);
57	_thr_cancel_leave(curthread, 1);
58
59	return ret;
60}
61