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kc3-lang/libevent/evutil.h

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  • Author : Nick Mathewson
    Date : 2007-09-24 16:26:11
    Hash : fe482977
    Message : r15324@catbus: nickm | 2007-09-24 12:22:21 -0400 New evutil.h macros to manipulate winsock errors. Use them in http.c and in evutil_socketpair(). svn:r451

  • evutil.h 
  • /*
 * Copyright (c) 2007 Niels Provos <provos@citi.umich.edu>
 * All rights reserved.
 *
 * 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.
 */
#ifndef _EVUTIL_H_
#define _EVUTIL_H_

/** @file evutil.h

  Common convenience functions for cross-platform portability and
  related socket manipulations.

 */

#ifdef __cplusplus
extern "C" {
#endif

int evutil_socketpair(int d, int type, int protocol, int sv[2]);
int evutil_make_socket_nonblocking(int sock);
#ifdef WIN32
#define EVUTIL_CLOSESOCKET(s) closesocket(s)
#else
#define EVUTIL_CLOSESOCKET(s) close(s)
#endif

#ifdef WIN32
#define EVUTIL_SOCKET_ERROR() WSAGetLastError()
#define EVUTIL_SET_SOCKET_ERROR(errcode)		\
	do { WSASetLastError(errcode); } while (0)
#else
#define EVUTIL_SOCKET_ERROR() (errno)
#define EVUTIL_SET_SOCKET_ERROR(errcode)		\
		do { errno = (errcode); } while (0)
#endif

#ifdef __cplusplus
}
#endif

#endif /* _EVUTIL_H_ */