sigwait.c

来自「RTEMS (Real-Time Executive for Multiproc」· C语言 代码 · 共 46 行

/*
 *  3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76
 *
 *  NOTE: P1003.1c/D10, p. 39 adds sigwait().
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 *
 *  $Id: sigwait.c,v 1.3.4.1 2003/09/04 18:47:11 joel Exp $
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <pthread.h>
#include <signal.h>
#include <errno.h>

#include <rtems/system.h>
#include <rtems/posix/pthread.h>
#include <rtems/posix/psignal.h>

int sigwait(
  const sigset_t  *set,
  int             *sig
)
{
  int status;

  status = sigtimedwait( set, NULL, NULL );

  if ( status != -1 ) {
    if ( sig )
      *sig = status;
    return 0;
  }

  return errno;
}