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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#include <nxt_router.h>
#include <nxt_http.h>
#include <nxt_upstream.h>
static nxt_http_action_t *nxt_upstream_handler(nxt_task_t *task,
nxt_http_request_t *r, nxt_http_action_t *action);
nxt_int_t
nxt_upstreams_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf,
nxt_conf_value_t *conf)
{
size_t size;
uint32_t i, n, next;
nxt_mp_t *mp;
nxt_int_t ret;
nxt_str_t name, *string;
nxt_upstreams_t *upstreams;
nxt_conf_value_t *upstreams_conf, *upcf;
static nxt_str_t upstreams_name = nxt_string("upstreams");
upstreams_conf = nxt_conf_get_object_member(conf, &upstreams_name, NULL);
if (upstreams_conf == NULL) {
return NXT_OK;
}
n = nxt_conf_object_members_count(upstreams_conf);
if (n == 0) {
return NXT_OK;
}
mp = tmcf->router_conf->mem_pool;
size = sizeof(nxt_upstreams_t) + n * sizeof(nxt_upstream_t);
upstreams = nxt_mp_zalloc(mp, size);
if (nxt_slow_path(upstreams == NULL)) {
return NXT_ERROR;
}
upstreams->items = n;
next = 0;
for (i = 0; i < n; i++) {
upcf = nxt_conf_next_object_member(upstreams_conf, &name, &next);
string = nxt_str_dup(mp, &upstreams->upstream[i].name, &name);
if (nxt_slow_path(string == NULL)) {
return NXT_ERROR;
}
ret = nxt_upstream_round_robin_create(task, tmcf, upcf,
&upstreams->upstream[i]);
if (nxt_slow_path(ret != NXT_OK)) {
return NXT_ERROR;
}
}
tmcf->router_conf->upstreams = upstreams;
return NXT_OK;
}
nxt_int_t
nxt_upstream_find(nxt_upstreams_t *upstreams, nxt_str_t *name,
nxt_http_action_t *action)
{
uint32_t i, n;
nxt_upstream_t *upstream;
upstream = &upstreams->upstream[0];
n = upstreams->items;
for (i = 0; i < n; i++) {
if (nxt_strstr_eq(&upstream[i].name, name)) {
action->u.upstream_number = i;
action->handler = nxt_upstream_handler;
return NXT_OK;
}
}
return NXT_DECLINED;
}
nxt_int_t
nxt_upstreams_joint_create(nxt_router_temp_conf_t *tmcf,
nxt_upstream_t ***upstream_joint)
{
uint32_t i, n;
nxt_upstream_t *u, **up;
nxt_upstreams_t *upstreams;
nxt_router_conf_t *router_conf;
router_conf = tmcf->router_conf;
upstreams = router_conf->upstreams;
if (upstreams == NULL) {
*upstream_joint = NULL;
return NXT_OK;
}
n = upstreams->items;
up = nxt_mp_zalloc(router_conf->mem_pool, n * sizeof(nxt_upstream_t *));
if (nxt_slow_path(up == NULL)) {
return NXT_ERROR;
}
u = &upstreams->upstream[0];
for (i = 0; i < n; i++) {
up[i] = u[i].proto->joint_create(tmcf, &u[i]);
if (nxt_slow_path(up[i] == NULL)) {
return NXT_ERROR;
}
}
*upstream_joint = up;
return NXT_OK;
}
static nxt_http_action_t *
nxt_upstream_handler(nxt_task_t *task, nxt_http_request_t *r,
nxt_http_action_t *action)
{
return nxt_upstream_proxy_handler(task, r,
r->conf->upstreams[action->u.upstream_number]);
}
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