106a99fe3SHajimu UMEMOTO /*- 206a99fe3SHajimu UMEMOTO * Copyright (c) 2005 Michael Bushkov <bushman@rsu.ru> 306a99fe3SHajimu UMEMOTO * All rights reserved. 406a99fe3SHajimu UMEMOTO * 506a99fe3SHajimu UMEMOTO * Redistribution and use in source and binary forms, with or without 606a99fe3SHajimu UMEMOTO * modification, are permitted provided that the following conditions 706a99fe3SHajimu UMEMOTO * are met: 806a99fe3SHajimu UMEMOTO * 1. Redistributions of source code must retain the above copyright 906a99fe3SHajimu UMEMOTO * notice, this list of conditions and the following disclaimer. 1006a99fe3SHajimu UMEMOTO * 2. Redistributions in binary form must reproduce the above copyright 1106a99fe3SHajimu UMEMOTO * notice, this list of conditions and the following disclaimer in the 1206a99fe3SHajimu UMEMOTO * documentation and/or other materials provided with the distribution. 1306a99fe3SHajimu UMEMOTO * 1406a99fe3SHajimu UMEMOTO * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1506a99fe3SHajimu UMEMOTO * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1606a99fe3SHajimu UMEMOTO * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1706a99fe3SHajimu UMEMOTO * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1806a99fe3SHajimu UMEMOTO * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1906a99fe3SHajimu UMEMOTO * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2006a99fe3SHajimu UMEMOTO * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2106a99fe3SHajimu UMEMOTO * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2206a99fe3SHajimu UMEMOTO * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2306a99fe3SHajimu UMEMOTO * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2406a99fe3SHajimu UMEMOTO * SUCH DAMAGE. 2506a99fe3SHajimu UMEMOTO */ 2606a99fe3SHajimu UMEMOTO 27db1bdf2bSMichael Bushkov #ifndef __NSCD_AGENT_H__ 28db1bdf2bSMichael Bushkov #define __NSCD_AGENT_H__ 2906a99fe3SHajimu UMEMOTO 3006a99fe3SHajimu UMEMOTO /* 3106a99fe3SHajimu UMEMOTO * Agents are used to perform the actual lookups from the caching daemon. 3206a99fe3SHajimu UMEMOTO * There are two types of daemons: for common requests and for multipart 3306a99fe3SHajimu UMEMOTO * requests. 3406a99fe3SHajimu UMEMOTO * All agents are stored in the agents table, which is the singleton. 3506a99fe3SHajimu UMEMOTO */ 3606a99fe3SHajimu UMEMOTO 3706a99fe3SHajimu UMEMOTO enum agent_type { 3806a99fe3SHajimu UMEMOTO COMMON_AGENT = 0, 3906a99fe3SHajimu UMEMOTO MULTIPART_AGENT = 1 4006a99fe3SHajimu UMEMOTO }; 4106a99fe3SHajimu UMEMOTO 4206a99fe3SHajimu UMEMOTO struct agent { 4306a99fe3SHajimu UMEMOTO char *name; 4406a99fe3SHajimu UMEMOTO enum agent_type type; 4506a99fe3SHajimu UMEMOTO }; 4606a99fe3SHajimu UMEMOTO 4706a99fe3SHajimu UMEMOTO struct common_agent { 4806a99fe3SHajimu UMEMOTO struct agent parent; 4906a99fe3SHajimu UMEMOTO int (*lookup_func)(const char *, size_t, char **, size_t *); 5006a99fe3SHajimu UMEMOTO }; 5106a99fe3SHajimu UMEMOTO 5206a99fe3SHajimu UMEMOTO struct multipart_agent { 5306a99fe3SHajimu UMEMOTO struct agent parent; 5434ecf97aSDag-Erling Smørgrav void *(*mp_init_func)(void); 5506a99fe3SHajimu UMEMOTO int (*mp_lookup_func)(char **, size_t *, void *); 5606a99fe3SHajimu UMEMOTO void (*mp_destroy_func)(void *); 5706a99fe3SHajimu UMEMOTO }; 5806a99fe3SHajimu UMEMOTO 5906a99fe3SHajimu UMEMOTO struct agent_table { 6006a99fe3SHajimu UMEMOTO struct agent **agents; 6106a99fe3SHajimu UMEMOTO size_t agents_num; 6206a99fe3SHajimu UMEMOTO }; 6306a99fe3SHajimu UMEMOTO 64*d2432adbSDag-Erling Smørgrav struct agent_table *init_agent_table(void); 65*d2432adbSDag-Erling Smørgrav void register_agent(struct agent_table *, struct agent *); 66*d2432adbSDag-Erling Smørgrav struct agent *find_agent(struct agent_table *, const char *, enum agent_type); 67*d2432adbSDag-Erling Smørgrav void destroy_agent_table(struct agent_table *); 6806a99fe3SHajimu UMEMOTO 6906a99fe3SHajimu UMEMOTO #endif 70