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/*
* Copyright (C) 2003 Michael Richardson
* Contributed by Michael Richardson <mcr@freeswan.org> while working
* on the Linux FreeS/WAN project in 2003.
*
* 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 INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM 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.
*/
/* $Id: async.h,v 1.1 2004/03/15 20:35:25 as Exp $ */
#ifndef LWRES_ASYNC_H
#define LWRES_ASYNC_H 1
#include <lwres/lwres.h>
/*
* support for asynchronous requests to lwres port
*/
struct lwres_async_state {
struct lwres_async_state *next;
lwres_buffer_t b_in, b_out;
lwres_uint32_t serial;
int opcode;
int (*callback)(void *uctx, struct rrsetinfo *res);
void *uctx;
};
/*
* The calls for asynchronous requests.
*/
int lwres_async_init(lwres_context_t **pctx);
int lwres_getrrsetbyname_init(const char *hostname, unsigned int rdclass,
unsigned int rdtype, unsigned int flags,
lwres_context_t *ctx,
struct lwres_async_state *las);
int lwres_getrrsetbyname_xmit(lwres_context_t *ctx,
struct lwres_async_state *las);
unsigned long lwres_async_timeout(lwres_context_t *ctx);
int lwres_async_fd(lwres_context_t *ctx);
int lwres_getrrsetbyname_read(struct lwres_async_state **plas,
lwres_context_t *ctx,
struct rrsetinfo **res);
int lwres_getrrsetbyname_async(const char *hostname, unsigned int rdclass,
unsigned int rdtype, unsigned int flags,
struct rrsetinfo **res);
#endif /* LWRES_ASYNC_H */
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