mirror of https://github.com/yandex/odyssey.git
122 lines
2.5 KiB
C
122 lines
2.5 KiB
C
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/*
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* odissey.
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*
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* PostgreSQL connection pooler and request router.
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*/
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include <machinarium.h>
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#include <soprano.h>
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#include "od_macro.h"
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#include "od_list.h"
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#include "od_pid.h"
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#include "od_syslog.h"
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#include "od_log.h"
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#include "od_scheme.h"
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#include "od_lex.h"
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#include "od_config.h"
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#include "od_server.h"
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#include "od_server_pool.h"
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#include "od_client.h"
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#include "od_client_pool.h"
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#include "od_route_id.h"
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#include "od_route.h"
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#include "od_route_pool.h"
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void od_routepool_init(od_routepool_t *pool)
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{
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od_listinit(&pool->list);
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pool->count = 0;
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}
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void od_routepool_free(od_routepool_t *pool)
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{
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od_route_t *route;
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od_list_t *i, *n;
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od_listforeach_safe(&pool->list, i, n) {
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route = od_container_of(i, od_route_t, link);
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od_routefree(route);
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}
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}
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od_route_t*
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od_routepool_new(od_routepool_t *pool, od_schemeroute_t *scheme,
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od_routeid_t *id)
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{
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od_route_t *route = od_routealloc();
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if (route == NULL)
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return NULL;
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int rc;
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rc = od_routeid_copy(&route->id, id);
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if (rc == -1) {
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od_routefree(route);
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return NULL;
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}
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route->scheme = scheme;
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od_listappend(&pool->list, &route->link);
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pool->count++;
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return route;
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}
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void od_routepool_unlink(od_routepool_t *pool, od_route_t *route)
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{
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assert(pool->count > 0);
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pool->count--;
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od_listunlink(&route->link);
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od_routefree(route);
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}
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od_route_t*
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od_routepool_match(od_routepool_t *pool, od_routeid_t *key)
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{
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od_route_t *route;
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od_list_t *i;
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od_listforeach(&pool->list, i) {
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route = od_container_of(i, od_route_t, link);
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if (od_routeid_compare(&route->id, key))
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return route;
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}
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return NULL;
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}
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od_server_t*
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od_routepool_next(od_routepool_t *pool, od_serverstate_t state)
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{
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od_route_t *route;
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od_list_t *i, *n;
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od_listforeach_safe(&pool->list, i, n) {
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route = od_container_of(i, od_route_t, link);
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od_server_t *server =
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od_serverpool_next(&route->server_pool, state);
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if (server)
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return server;
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}
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return NULL;
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}
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od_server_t*
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od_routepool_foreach(od_routepool_t *pool, od_serverstate_t state,
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od_serverpool_cb_t callback,
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void *arg)
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{
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od_route_t *route;
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od_list_t *i, *n;
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od_listforeach_safe(&pool->list, i, n) {
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route = od_container_of(i, od_route_t, link);
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od_server_t *server =
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od_serverpool_foreach(&route->server_pool, state,
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callback, arg);
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if (server)
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return server;
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}
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return NULL;
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}
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