mirror of https://github.com/yandex/odyssey.git
96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
#ifndef ODYSSEY_RULE_STORAGE_H
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#define ODYSSEY_RULE_STORAGE_H
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/*
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* Odyssey.
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*
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* Scalable PostgreSQL connection pooler.
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*/
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typedef struct od_rule_storage od_rule_storage_t;
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typedef struct od_storage_watchdog od_storage_watchdog_t;
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/* Storage Watchdog */
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typedef enum {
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OD_RULE_STORAGE_REMOTE,
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OD_RULE_STORAGE_LOCAL,
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} od_rule_storage_type_t;
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struct od_storage_watchdog {
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char *route_usr;
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char *route_db;
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char *storage_user;
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char *storage_db;
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char *query;
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int interval;
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int check_retry;
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/* soft shutdown on reload */
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pthread_mutex_t mu;
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int online;
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od_global_t *global;
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};
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od_storage_watchdog_t *od_storage_watchdog_allocate(od_global_t *);
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int od_storage_watchdog_free(od_storage_watchdog_t *watchdog);
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/* */
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typedef struct od_storage_endpoint od_storage_endpoint_t;
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struct od_storage_endpoint {
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char *host; /* NULL - terminated */
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int port; /* TODO: support somehow */
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};
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typedef enum {
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OD_TARGET_SESSION_ATTRS_RW,
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OD_TARGET_SESSION_ATTRS_RO,
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OD_TARGET_SESSION_ATTRS_ANY,
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} od_target_session_attrs_t;
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typedef struct od_auth_cache_value od_auth_cache_value_t;
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struct od_auth_cache_value {
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uint64_t timestamp;
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char *passwd;
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uint32_t passwd_len;
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};
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struct od_rule_storage {
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od_tls_opts_t *tls_opts;
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char *name;
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char *type;
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od_rule_storage_type_t storage_type;
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/* round-robin atomic counter for endpoint selection */
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od_atomic_u32_t rr_counter;
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od_storage_endpoint_t *endpoints;
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size_t endpoints_count;
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char *host; /* host or host,host or [host]:port[,host...] */
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int port; /* default port */
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od_target_session_attrs_t target_session_attrs;
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int server_max_routing;
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od_storage_watchdog_t *watchdog;
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od_hashmap_t *acache;
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od_list_t link;
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};
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/* storage API */
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od_rule_storage_t *od_rules_storage_allocate(void);
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od_rule_storage_t *od_rules_storage_copy(od_rule_storage_t *);
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void od_rules_storage_free(od_rule_storage_t *);
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/* watchdog */
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void od_storage_watchdog_watch(void *arg);
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#endif /* ODYSSEY_RULE_STORAGE_H */
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