1 /*	$OpenBSD: ioev.h,v 1.1 2014/01/27 15:49:52 sunil Exp $	*/

     2 /*

     3  * Copyright (c) 2012 Eric Faurot <eric@openbsd.org>

     4  *

     5  * Permission to use, copy, modify, and distribute this software for any

     6  * purpose with or without fee is hereby granted, provided that the above

     7  * copyright notice and this permission notice appear in all copies.

     8  *

     9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

    10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

    11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

    12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

    13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

    14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

    15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

    16  */

    17 

    18 #include <event.h>

    19 

    20 enum {

    21 	IO_CONNECTED = 0, 	/* connection successful	*/

    22 	IO_TLSREADY,		/* TLS started succesfully	*/

    23 	IO_TLSVERIFIED,		/* XXX - needs more work	*/

    24 	IO_DATAIN,		/* new data in input buffer	*/

    25 	IO_LOWAT,		/* output queue running low	*/

    26 	IO_DISCONNECTED,	/* error?			*/

    27 	IO_TIMEOUT,		/* error?			*/

    28 	IO_ERROR,		/* details?			*/

    29 };

    30 

    31 #define IO_READ			0x01

    32 #define IO_WRITE		0x02

    33 #define IO_RW			(IO_READ | IO_WRITE)

    34 #define IO_PAUSE_IN		0x04

    35 #define IO_PAUSE_OUT		0x08

    36 #define IO_RESET		0x10  /* internal */

    37 #define IO_HELD			0x20  /* internal */

    38 

    39 struct iobuf;

    40 struct io {

    41 	int		 sock;

    42 	void		*arg;

    43 	void		(*cb)(struct io*, int);

    44 	struct iobuf	*iobuf;

    45 	size_t		 lowat;

    46 	int		 timeout;

    47 	int		 flags;

    48 	int		 state;

    49 	struct event	 ev;

    50 	void		*ssl;

    51 	const char	*error; /* only valid immediatly on callback */

    52 };

    53 

    54 void io_set_blocking(int, int);

    55 void io_set_linger(int, int);

    56 

    57 void io_init(struct io*, int, void*, void(*)(struct io*, int), struct iobuf*);

    58 void io_clear(struct io*);

    59 void io_set_read(struct io *);

    60 void io_set_write(struct io *);

    61 void io_set_timeout(struct io *, int);

    62 void io_set_lowat(struct io *, size_t);

    63 void io_pause(struct io *, int);

    64 void io_resume(struct io *, int);

    65 void io_reload(struct io *);

    66 int io_connect(struct io *, const struct sockaddr *, const struct sockaddr *);

    67 int io_start_tls(struct io *, void *);

    68 const char* io_strio(struct io *);

    69 const char* io_strevent(int);