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memcache.h
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/* * ProFTPD - FTP server daemon * Copyright (c) 2010-2011 The ProFTPD Project team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. * * As a special exemption, The ProFTPD Project team and other respective * copyright holders give permission to link this program with OpenSSL, and * distribute the resulting executable, without including the source code for * OpenSSL in the source distribution. */ /* Memcache support * $Id: memcache.h,v 1.12 2011/05/23 20:35:35 castaglia Exp $ */ #ifndef PR_MEMCACHE_H #define PR_MEMCACHE_H #include "conf.h" #include "tpl.h" typedef struct mcache_rec pr_memcache_t; /* Core API for use by modules et al */ /* This function returns the pr_memcache_t for the current session; if one * does not exist, it will be allocated. */ pr_memcache_t *pr_memcache_conn_get(void); pr_memcache_t *pr_memcache_conn_new(pool *p, module *owner, unsigned long flags, uint64_t nreplicas); int pr_memcache_conn_close(pr_memcache_t *mcache); /* Set a namespace key prefix, to be used by this connection for all of the * operations involving items. In practice, the key prefix should always * be a string which does contain any space characters. * * Different modules can use different namespace prefixes for their keys. * Setting NULL for the namespace prefix clears it. */ int pr_memcache_conn_set_namespace(pr_memcache_t *mcache, module *m, const char *prefix); int pr_memcache_add(pr_memcache_t *mcache, module *m, const char *key, void *value, size_t valuesz, time_t expires, uint32_t flags); int pr_memcache_decr(pr_memcache_t *mcache, module *m, const char *key, uint32_t decr, uint64_t *value); void *pr_memcache_get(pr_memcache_t *mcache, module *m, const char *key, size_t *valuesz, uint32_t *flags); char *pr_memcache_get_str(pr_memcache_t *mcache, module *m, const char *key, uint32_t *flags); int pr_memcache_incr(pr_memcache_t *mcache, module *m, const char *key, uint32_t incr, uint64_t *value); int pr_memcache_remove(pr_memcache_t *mcache, module *m, const char *key, time_t expires); int pr_memcache_set(pr_memcache_t *mcache, module *m, const char *key, void *value, size_t valuesz, time_t expires, uint32_t flags); /* Variants of the above, where the key values are arbitrary bits rather * than being assumed to be strings. */ int pr_memcache_kadd(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, void *value, size_t valuesz, time_t expires, uint32_t flags); int pr_memcache_kdecr(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, uint32_t decr, uint64_t *value); void *pr_memcache_kget(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, size_t *valuesz, uint32_t *flags); char *pr_memcache_kget_str(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, uint32_t *flags); int pr_memcache_kincr(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, uint32_t incr, uint64_t *value); int pr_memcache_kremove(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, time_t expires); int pr_memcache_kset(pr_memcache_t *mcache, module *m, const char *key, size_t keysz, void *value, size_t valuesz, time_t expires, uint32_t flags); /* For internal use only */ unsigned long memcache_get_sess_flags(void); #define PR_MEMCACHE_FL_NO_BINARY_PROTOCOL 0x001 #define PR_MEMCACHE_FL_NO_RANDOM_REPLICA_READ 0x002 int memcache_set_sess_connect_failures(uint64_t count); int memcache_set_sess_flags(unsigned long flags); int memcache_set_sess_replicas(uint64_t count); int memcache_set_servers(void *server_list); /* Configure the timeouts in millisecs. * * The last timeout argument is timeout in seconds. When a server is marked * as "dead", that server will be automatically ejected from the pool of servers * used for storage/retrieval. This "ejected timeout" argument configures the * number of seconds that an ejected server will be out of the pool, before * being added back in. */ int memcache_set_timeouts(unsigned long conn_millis, unsigned long read_millis, unsigned long write_millis, unsigned long ejected_sec); int memcache_clear(void); int memcache_init(void); #endif /* PR_MEMCACHE_H */