kc3-lang/libevent/epoll_sub.c

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• Hash : 99cd8187
  Author :
  Date : 2014-01-22T11:46:52
  

  Merge remote-tracking branch 'origin/patches-2.0'
  

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• epoll_sub.c

• /*
   * Copyright 2003-2009 Niels Provos <provos@citi.umich.edu>
   * Copyright 2009-2012 Niels Provos and Nick Mathewson
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  #include "evconfig-private.h"
  #include <stdint.h>
  
  #include <sys/param.h>
  #include <sys/types.h>
  #include <sys/syscall.h>
  #include <sys/epoll.h>
  #include <unistd.h>
  #include <errno.h>
  
  int
  epoll_create(int size)
  {
  #if !defined(__NR_epoll_create) && defined(__NR_epoll_create1)
  	if (size <= 0) {
  		errno = EINVAL;
  		return -1;
  	}
  	return (syscall(__NR_epoll_create1, 0));
  #else
  	return (syscall(__NR_epoll_create, size));
  #endif
  }
  
  int
  epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
  {
  
  	return (syscall(__NR_epoll_ctl, epfd, op, fd, event));
  }
  
  int
  epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)
  {
  #if !defined(__NR_epoll_wait) && defined(__NR_epoll_pwait)
  	return (syscall(__NR_epoll_pwait, epfd, events, maxevents, timeout, NULL, 0));
  #else
  	return (syscall(__NR_epoll_wait, epfd, events, maxevents, timeout));
  #endif
  }
  

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