usr/src/lib/libc/port/gen/poll.c

   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 }