2 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by John Birrell.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/lib/libc_r/uthread/uthread_recvfrom.c,v 1.9.2.5 2003/01/17 07:56:43 ru Exp $
33 * $DragonFly: src/lib/libc_r/uthread/uthread_recvfrom.c,v 1.2 2003/06/17 04:26:48 dillon Exp $
36 #include <sys/types.h>
37 #include <sys/socket.h>
40 #include "pthread_private.h"
43 _recvfrom(int fd, void *buf, size_t len, int flags, struct sockaddr * from,
46 struct pthread *curthread = _get_curthread();
49 if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) {
50 while ((ret = __sys_recvfrom(fd, buf, len, flags, from, from_len)) < 0) {
51 if (((_thread_fd_getflags(fd) & O_NONBLOCK) == 0)
52 && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) {
53 curthread->data.fd.fd = fd;
55 /* Set the timeout: */
56 _thread_kern_set_timeout(NULL);
57 curthread->interrupted = 0;
58 _thread_kern_sched_state(PS_FDR_WAIT, __FILE__, __LINE__);
60 /* Check if the wait was interrupted: */
61 if (curthread->interrupted) {
62 /* Return an error status: */
72 _FD_UNLOCK(fd, FD_READ);
78 recvfrom(int fd, void *buf, size_t len, int flags, struct sockaddr * from,
83 _thread_enter_cancellation_point();
84 ret = _recvfrom(fd, buf, len, flags, from, from_len);
85 _thread_leave_cancellation_point();