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/*
* Copyright (c) 2008-2009 Niels Provos and Nick Mathewson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _BUFFEREVENT_INTERNAL_H_
#define _BUFFEREVENT_INTERNAL_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "event-config.h"
#include "evutil.h"
struct bufferevent_filter {
/** allows chaining of filters */
TAILQ_ENTRY(bufferevent_filter) (next);
/** used for intermediary state either on the input or output path */
struct evbuffer *buffer;
/** initializes the context provided to process */
void (*init_context)(void *);
/** frees any context related to ctx */
void (*free_context)(void *);
enum bufferevent_filter_result (*process)(
struct evbuffer *src, struct evbuffer *dst,
enum bufferevent_filter_state flags, void *ctx);
void *ctx;
};
#ifdef __cplusplus
}
#endif
#endif /* _BUFFEREVENT_INTERNAL_H_ */
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