You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
2.7 KiB
96 lines
2.7 KiB
/*
|
|
* include/haproxy/compression-t.h
|
|
* This file defines everything related to compression.
|
|
*
|
|
* Copyright 2012 Exceliance, David Du Colombier <dducolombier@exceliance.fr>
|
|
William Lallemand <wlallemand@exceliance.fr>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation, version 2.1
|
|
* exclusively.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _HAPROXY_COMP_T_H
|
|
#define _HAPROXY_COMP_T_H
|
|
|
|
#if defined(USE_SLZ)
|
|
#ifdef USE_ZLIB
|
|
#error "Cannot build with both USE_SLZ and USE_ZLIB at the same time."
|
|
#endif
|
|
#include <slz.h>
|
|
#elif defined(USE_ZLIB)
|
|
#include <zlib.h>
|
|
#endif
|
|
|
|
#include <haproxy/buf-t.h>
|
|
|
|
struct comp {
|
|
struct comp_algo *algos;
|
|
struct comp_type *types;
|
|
unsigned int offload;
|
|
};
|
|
|
|
struct comp_ctx {
|
|
#if defined(USE_SLZ)
|
|
struct slz_stream strm;
|
|
const void *direct_ptr; /* NULL or pointer to beginning of data */
|
|
int direct_len; /* length of direct_ptr if not NULL */
|
|
struct buffer queued; /* if not NULL, data already queued */
|
|
#elif defined(USE_ZLIB)
|
|
z_stream strm; /* zlib stream */
|
|
void *zlib_deflate_state;
|
|
void *zlib_window;
|
|
void *zlib_prev;
|
|
void *zlib_pending_buf;
|
|
void *zlib_head;
|
|
#endif
|
|
int cur_lvl;
|
|
};
|
|
|
|
/* Thanks to MSIE/IIS, the "deflate" name is ambiguous, as according to the RFC
|
|
* it's a zlib-wrapped deflate stream, but MSIE only understands a raw deflate
|
|
* stream. For this reason some people prefer to emit a raw deflate stream on
|
|
* "deflate" and we'll need two algos for the same name, they are distinguished
|
|
* with the config name.
|
|
*/
|
|
struct comp_algo {
|
|
char *cfg_name; /* config name */
|
|
int cfg_name_len;
|
|
|
|
char *ua_name; /* name for the user-agent */
|
|
int ua_name_len;
|
|
|
|
int (*init)(struct comp_ctx **comp_ctx, int level);
|
|
int (*add_data)(struct comp_ctx *comp_ctx, const char *in_data, int in_len, struct buffer *out);
|
|
int (*flush)(struct comp_ctx *comp_ctx, struct buffer *out);
|
|
int (*finish)(struct comp_ctx *comp_ctx, struct buffer *out);
|
|
int (*end)(struct comp_ctx **comp_ctx);
|
|
struct comp_algo *next;
|
|
};
|
|
|
|
struct comp_type {
|
|
char *name;
|
|
int name_len;
|
|
struct comp_type *next;
|
|
};
|
|
|
|
|
|
#endif /* _HAPROXY_COMP_T_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|
|
|
|
|