56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* Please read the file COPYING, README and AUTHORS for more information.
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*/
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#ifndef io_H_included
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#define io_H_included
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/**
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* @file
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* I/O abstraction interface (header)
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*/
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#include "portab.h"
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#include <sys/time.h>
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#define IO_WANTREAD 1
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#define IO_WANTWRITE 2
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/* init library.
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sets up epoll/kqueue descriptors and tries to allocate space for ioevlen
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file descriptors. ioevlen is just the _initial_ size, not a limit. */
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bool io_library_init PARAMS((unsigned int ioevlen));
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/* shutdown and free all internal data structures */
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void io_library_shutdown PARAMS((void));
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/* add fd to internal set, enable readability check, set callback */
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bool io_event_create PARAMS((int fd, short what, void (*cbfunc)(int, short)));
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/* change callback function associated with fd */
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bool io_event_setcb PARAMS((int fd, void (*cbfunc)(int, short)));
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/* watch fd for event of type what */
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bool io_event_add PARAMS((int fd, short what));
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/* do not watch fd for event of type what */
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bool io_event_del PARAMS((int fd, short what));
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/* remove fd from watchlist, close() fd. */
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bool io_close PARAMS((int fd));
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/* set O_NONBLOCK */
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bool io_setnonblock PARAMS((int fd));
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/* set O_CLOEXEC */
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bool io_setcloexec PARAMS((int fd));
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/* watch fds for activity */
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int io_dispatch PARAMS((struct timeval *tv));
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#endif /* io_H_included */
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