/usr/include/yaz/poll.h is in libyaz5-dev 5.19.2-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | /* This file is part of the YAZ toolkit.
* Copyright (C) Index Data.
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Index Data nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS AND CONTRIBUTORS 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.
*/
/**
* \file
* \brief Poll, select wrappers
*/
#ifndef YAZ_POLL_H
#define YAZ_POLL_H
#include <stddef.h>
#include <yaz/yconfig.h>
YAZ_BEGIN_CDECL
/** \brief select/poll masks .. timeout is "output" only */
enum yaz_poll_mask {
yaz_poll_none = 0,
yaz_poll_read = 1,
yaz_poll_write = 2,
yaz_poll_except = 4,
yaz_poll_timeout = 8,
};
/** \brief select/poll fd info */
struct yaz_poll_fd {
/** input mask passed to select/poll */
enum yaz_poll_mask input_mask;
/** resulting mask as returned by select/poll */
enum yaz_poll_mask output_mask;
/** file descriptor to use */
int fd;
/** user-defined data */
void *client_data;
};
/** \brief poll wrapper for poll or select
\param fds array of sockets to be polled
\param num_fds size of fds array (number of sockets)
\param sec number of seconds to wait (-1 for no timeout)
\param nsec nano seconds to wait
\retval -1 error
\retval 0 timeout
\retval >0 event occur on one or more sockets
This functions calls yaz_poll_poll on systems where poll is
available and yaz_poll_select where it it unavailable.
*/
YAZ_EXPORT
int yaz_poll(struct yaz_poll_fd *fds, int num_fds, int sec, int nsec);
#define yaz_poll_add(var,value) var = (enum yaz_poll_mask ) ((int) var | value)
YAZ_END_CDECL
#endif
/*
* Local variables:
* c-basic-offset: 4
* c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
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