xref: /illumos-gate/usr/src/lib/libc/port/gen/poll.c (revision f3041bfa)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 #pragma weak _poll = poll
27 
28 #include "lint.h"
29 #include <sys/time.h>
30 #include <sys/poll.h>
31 #include "libc.h"
32 
33 int
34 ppoll(struct pollfd *_RESTRICT_KYWD fds, nfds_t nfd,
35     const struct timespec *_RESTRICT_KYWD tsp,
36     const sigset_t *_RESTRICT_KYWD sigmask)
37 {
38 	return (_pollsys(fds, nfd, tsp, sigmask));
39 }
40 
41 int
42 poll(struct pollfd *fds, nfds_t nfd, int timeout)
43 {
44 	timespec_t ts;
45 	timespec_t *tsp;
46 
47 	if (timeout < 0)
48 		tsp = NULL;
49 	else {
50 		ts.tv_sec = timeout / MILLISEC;
51 		ts.tv_nsec = (timeout % MILLISEC) * MICROSEC;
52 		tsp = &ts;
53 	}
54 
55 	return (_pollsys(fds, nfd, tsp, NULL));
56 }
57