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Diffstat (limited to 'storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/modules/ngx_http_upstream_least_conn_module.c')
-rw-r--r--storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/modules/ngx_http_upstream_least_conn_module.c403
1 files changed, 0 insertions, 403 deletions
diff --git a/storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/modules/ngx_http_upstream_least_conn_module.c b/storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/modules/ngx_http_upstream_least_conn_module.c
deleted file mode 100644
index 623bc9b1053..00000000000
--- a/storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/modules/ngx_http_upstream_least_conn_module.c
+++ /dev/null
@@ -1,403 +0,0 @@
-
-/*
- * Copyright (C) Maxim Dounin
- * Copyright (C) Nginx, Inc.
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_http.h>
-
-
-typedef struct {
- ngx_uint_t *conns;
-} ngx_http_upstream_least_conn_conf_t;
-
-
-typedef struct {
- /* the round robin data must be first */
- ngx_http_upstream_rr_peer_data_t rrp;
-
- ngx_uint_t *conns;
-
- ngx_event_get_peer_pt get_rr_peer;
- ngx_event_free_peer_pt free_rr_peer;
-} ngx_http_upstream_lc_peer_data_t;
-
-
-static ngx_int_t ngx_http_upstream_init_least_conn_peer(ngx_http_request_t *r,
- ngx_http_upstream_srv_conf_t *us);
-static ngx_int_t ngx_http_upstream_get_least_conn_peer(
- ngx_peer_connection_t *pc, void *data);
-static void ngx_http_upstream_free_least_conn_peer(ngx_peer_connection_t *pc,
- void *data, ngx_uint_t state);
-static void *ngx_http_upstream_least_conn_create_conf(ngx_conf_t *cf);
-static char *ngx_http_upstream_least_conn(ngx_conf_t *cf, ngx_command_t *cmd,
- void *conf);
-
-
-static ngx_command_t ngx_http_upstream_least_conn_commands[] = {
-
- { ngx_string("least_conn"),
- NGX_HTTP_UPS_CONF|NGX_CONF_NOARGS,
- ngx_http_upstream_least_conn,
- 0,
- 0,
- NULL },
-
- ngx_null_command
-};
-
-
-static ngx_http_module_t ngx_http_upstream_least_conn_module_ctx = {
- NULL, /* preconfiguration */
- NULL, /* postconfiguration */
-
- NULL, /* create main configuration */
- NULL, /* init main configuration */
-
- ngx_http_upstream_least_conn_create_conf, /* create server configuration */
- NULL, /* merge server configuration */
-
- NULL, /* create location configuration */
- NULL /* merge location configuration */
-};
-
-
-ngx_module_t ngx_http_upstream_least_conn_module = {
- NGX_MODULE_V1,
- &ngx_http_upstream_least_conn_module_ctx, /* module context */
- ngx_http_upstream_least_conn_commands, /* module directives */
- NGX_HTTP_MODULE, /* module type */
- NULL, /* init master */
- NULL, /* init module */
- NULL, /* init process */
- NULL, /* init thread */
- NULL, /* exit thread */
- NULL, /* exit process */
- NULL, /* exit master */
- NGX_MODULE_V1_PADDING
-};
-
-
-static ngx_int_t
-ngx_http_upstream_init_least_conn(ngx_conf_t *cf,
- ngx_http_upstream_srv_conf_t *us)
-{
- ngx_uint_t n;
- ngx_http_upstream_rr_peers_t *peers;
- ngx_http_upstream_least_conn_conf_t *lcf;
-
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cf->log, 0,
- "init least conn");
-
- if (ngx_http_upstream_init_round_robin(cf, us) != NGX_OK) {
- return NGX_ERROR;
- }
-
- peers = us->peer.data;
-
- n = peers->number;
-
- if (peers->next) {
- n += peers->next->number;
- }
-
- lcf = ngx_http_conf_upstream_srv_conf(us,
- ngx_http_upstream_least_conn_module);
-
- lcf->conns = ngx_pcalloc(cf->pool, sizeof(ngx_uint_t) * n);
- if (lcf->conns == NULL) {
- return NGX_ERROR;
- }
-
- us->peer.init = ngx_http_upstream_init_least_conn_peer;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_upstream_init_least_conn_peer(ngx_http_request_t *r,
- ngx_http_upstream_srv_conf_t *us)
-{
- ngx_http_upstream_lc_peer_data_t *lcp;
- ngx_http_upstream_least_conn_conf_t *lcf;
-
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "init least conn peer");
-
- lcf = ngx_http_conf_upstream_srv_conf(us,
- ngx_http_upstream_least_conn_module);
-
- lcp = ngx_palloc(r->pool, sizeof(ngx_http_upstream_lc_peer_data_t));
- if (lcp == NULL) {
- return NGX_ERROR;
- }
-
- lcp->conns = lcf->conns;
-
- r->upstream->peer.data = &lcp->rrp;
-
- if (ngx_http_upstream_init_round_robin_peer(r, us) != NGX_OK) {
- return NGX_ERROR;
- }
-
- r->upstream->peer.get = ngx_http_upstream_get_least_conn_peer;
- r->upstream->peer.free = ngx_http_upstream_free_least_conn_peer;
-
- lcp->get_rr_peer = ngx_http_upstream_get_round_robin_peer;
- lcp->free_rr_peer = ngx_http_upstream_free_round_robin_peer;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_upstream_get_least_conn_peer(ngx_peer_connection_t *pc, void *data)
-{
- ngx_http_upstream_lc_peer_data_t *lcp = data;
-
- time_t now;
- uintptr_t m;
- ngx_int_t rc, total;
- ngx_uint_t i, n, p, many;
- ngx_http_upstream_rr_peer_t *peer, *best;
- ngx_http_upstream_rr_peers_t *peers;
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "get least conn peer, try: %ui", pc->tries);
-
- if (lcp->rrp.peers->single) {
- return lcp->get_rr_peer(pc, &lcp->rrp);
- }
-
- pc->cached = 0;
- pc->connection = NULL;
-
- now = ngx_time();
-
- peers = lcp->rrp.peers;
-
- best = NULL;
- total = 0;
-
-#if (NGX_SUPPRESS_WARN)
- many = 0;
- p = 0;
-#endif
-
- for (i = 0; i < peers->number; i++) {
-
- n = i / (8 * sizeof(uintptr_t));
- m = (uintptr_t) 1 << i % (8 * sizeof(uintptr_t));
-
- if (lcp->rrp.tried[n] & m) {
- continue;
- }
-
- peer = &peers->peer[i];
-
- if (peer->down) {
- continue;
- }
-
- if (peer->max_fails
- && peer->fails >= peer->max_fails
- && now - peer->checked <= peer->fail_timeout)
- {
- continue;
- }
-
- /*
- * select peer with least number of connections; if there are
- * multiple peers with the same number of connections, select
- * based on round-robin
- */
-
- if (best == NULL
- || lcp->conns[i] * best->weight < lcp->conns[p] * peer->weight)
- {
- best = peer;
- many = 0;
- p = i;
-
- } else if (lcp->conns[i] * best->weight
- == lcp->conns[p] * peer->weight)
- {
- many = 1;
- }
- }
-
- if (best == NULL) {
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "get least conn peer, no peer found");
-
- goto failed;
- }
-
- if (many) {
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "get least conn peer, many");
-
- for (i = p; i < peers->number; i++) {
-
- n = i / (8 * sizeof(uintptr_t));
- m = (uintptr_t) 1 << i % (8 * sizeof(uintptr_t));
-
- if (lcp->rrp.tried[n] & m) {
- continue;
- }
-
- peer = &peers->peer[i];
-
- if (peer->down) {
- continue;
- }
-
- if (lcp->conns[i] * best->weight != lcp->conns[p] * peer->weight) {
- continue;
- }
-
- if (peer->max_fails
- && peer->fails >= peer->max_fails
- && now - peer->checked <= peer->fail_timeout)
- {
- continue;
- }
-
- peer->current_weight += peer->effective_weight;
- total += peer->effective_weight;
-
- if (peer->effective_weight < peer->weight) {
- peer->effective_weight++;
- }
-
- if (peer->current_weight > best->current_weight) {
- best = peer;
- p = i;
- }
- }
- }
-
- best->current_weight -= total;
-
- if (now - best->checked > best->fail_timeout) {
- best->checked = now;
- }
-
- pc->sockaddr = best->sockaddr;
- pc->socklen = best->socklen;
- pc->name = &best->name;
-
- lcp->rrp.current = p;
-
- n = p / (8 * sizeof(uintptr_t));
- m = (uintptr_t) 1 << p % (8 * sizeof(uintptr_t));
-
- lcp->rrp.tried[n] |= m;
- lcp->conns[p]++;
-
- return NGX_OK;
-
-failed:
-
- if (peers->next) {
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "get least conn peer, backup servers");
-
- lcp->conns += peers->number;
-
- lcp->rrp.peers = peers->next;
-
- n = (lcp->rrp.peers->number + (8 * sizeof(uintptr_t) - 1))
- / (8 * sizeof(uintptr_t));
-
- for (i = 0; i < n; i++) {
- lcp->rrp.tried[i] = 0;
- }
-
- rc = ngx_http_upstream_get_least_conn_peer(pc, lcp);
-
- if (rc != NGX_BUSY) {
- return rc;
- }
- }
-
- /* all peers failed, mark them as live for quick recovery */
-
- for (i = 0; i < peers->number; i++) {
- peers->peer[i].fails = 0;
- }
-
- pc->name = peers->name;
-
- return NGX_BUSY;
-}
-
-
-static void
-ngx_http_upstream_free_least_conn_peer(ngx_peer_connection_t *pc,
- void *data, ngx_uint_t state)
-{
- ngx_http_upstream_lc_peer_data_t *lcp = data;
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "free least conn peer %ui %ui", pc->tries, state);
-
- if (lcp->rrp.peers->single) {
- lcp->free_rr_peer(pc, &lcp->rrp, state);
- return;
- }
-
- lcp->conns[lcp->rrp.current]--;
-
- lcp->free_rr_peer(pc, &lcp->rrp, state);
-}
-
-
-static void *
-ngx_http_upstream_least_conn_create_conf(ngx_conf_t *cf)
-{
- ngx_http_upstream_least_conn_conf_t *conf;
-
- conf = ngx_pcalloc(cf->pool,
- sizeof(ngx_http_upstream_least_conn_conf_t));
- if (conf == NULL) {
- return NULL;
- }
-
- /*
- * set by ngx_pcalloc():
- *
- * conf->conns = NULL;
- */
-
- return conf;
-}
-
-
-static char *
-ngx_http_upstream_least_conn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
-{
- ngx_http_upstream_srv_conf_t *uscf;
-
- uscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_upstream_module);
-
- if (uscf->peer.init_upstream) {
- ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
- "load balancing method redefined");
- }
-
- uscf->peer.init_upstream = ngx_http_upstream_init_least_conn;
-
- uscf->flags = NGX_HTTP_UPSTREAM_CREATE
- |NGX_HTTP_UPSTREAM_WEIGHT
- |NGX_HTTP_UPSTREAM_MAX_FAILS
- |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
- |NGX_HTTP_UPSTREAM_DOWN
- |NGX_HTTP_UPSTREAM_BACKUP;
-
- return NGX_CONF_OK;
-}
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