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/* $OpenBSD: ioev.h,v 1.20 2021/07/28 19:39:50 benno Exp $ */
/*
* Copyright (c) 2012 Eric Faurot <eric@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
enum {
IO_CONNECTED = 0, /* connection successful */
IO_TLSREADY, /* TLS started successfully */
IO_DATAIN, /* new data in input buffer */
IO_LOWAT, /* output queue running low */
IO_DISCONNECTED, /* error? */
IO_TIMEOUT, /* error? */
IO_ERROR, /* details? */
};
#define IO_IN 0x01
#define IO_OUT 0x02
struct io;
struct tls;
void io_set_nonblocking(int);
void io_set_nolinger(int);
struct io *io_new(void);
void io_free(struct io *);
void io_set_read(struct io *);
void io_set_write(struct io *);
void io_set_fd(struct io *, int);
void io_set_callback(struct io *io, void(*)(struct io *, int, void *), void *);
void io_set_timeout(struct io *, int);
void io_set_lowat(struct io *, size_t);
void io_pause(struct io *, int);
void io_resume(struct io *, int);
void io_reload(struct io *);
int io_connect(struct io *, const struct sockaddr *, const struct sockaddr *);
int io_connect_tls(struct io *, struct tls *, const char *);
int io_accept_tls(struct io *, struct tls *);
const char* io_strio(struct io *);
const char* io_strevent(int);
const char* io_error(struct io *);
struct tls* io_tls(struct io *);
int io_fileno(struct io *);
int io_paused(struct io *, int);
/* Buffered output functions */
int io_write(struct io *, const void *, size_t);
int io_writev(struct io *, const struct iovec *, int);
int io_print(struct io *, const char *);
int io_printf(struct io *, const char *, ...)
__attribute__((__format__ (printf, 2, 3)));
int io_vprintf(struct io *, const char *, va_list)
__attribute__((__format__ (printf, 2, 0)));
size_t io_queued(struct io *);
/* Buffered input functions */
void* io_data(struct io *);
size_t io_datalen(struct io *);
char* io_getline(struct io *, size_t *);
void io_drop(struct io *, size_t);
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