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/*
* compress.h: Compression functions for Linux-HA
*
* Copyright (C) 2005 Guochun Shi <gshi@ncsa.uiuc.edu>
*
* 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _COMPRESS_H_
#define _COMPRESS_H_
#define HB_COMPRESS_TYPE compress
#define HB_COMPRESS_TYPE_S "compress"
/*
* List of functions provided by implementations of the heartbeat
* compress interface.
*/
struct hb_compress_fns {
int (*compress) (char*, size_t*, const char*, size_t);
int (*decompress) (char*, size_t* , const char*, size_t);
const char* (*getname) (void);
};
struct ha_msg;
/* set the compression method*/
int cl_compress_remove_plugin(const char* pluginname);
int cl_compress_load_plugin(const char* pluginname);
struct hb_compress_fns* cl_get_compress_fns(void);
int cl_set_compress_fns(const char*);
char* cl_compressmsg(struct ha_msg*m, size_t* len);
struct ha_msg* cl_decompressmsg(struct ha_msg* m);
gboolean is_compressed_msg(struct ha_msg* m);
int cl_compress_field(struct ha_msg* msg, int index, char* buf, size_t* buflen);
int cl_decompress_field(struct ha_msg* msg, int index, char* buf, size_t* buflen);
#endif
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