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Diffstat (limited to 'storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/ngx_http_upstream_round_robin.c')
-rw-r--r--storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/ngx_http_upstream_round_robin.c696
1 files changed, 0 insertions, 696 deletions
diff --git a/storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/ngx_http_upstream_round_robin.c b/storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/ngx_http_upstream_round_robin.c
deleted file mode 100644
index 2d0649b7f73..00000000000
--- a/storage/mroonga/vendor/groonga/vendor/nginx-1.7.6/src/http/ngx_http_upstream_round_robin.c
+++ /dev/null
@@ -1,696 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) Nginx, Inc.
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_http.h>
-
-
-#define ngx_http_upstream_tries(p) ((p)->number \
- + ((p)->next ? (p)->next->number : 0))
-
-
-static ngx_http_upstream_rr_peer_t *ngx_http_upstream_get_peer(
- ngx_http_upstream_rr_peer_data_t *rrp);
-
-#if (NGX_HTTP_SSL)
-
-static ngx_int_t ngx_http_upstream_empty_set_session(ngx_peer_connection_t *pc,
- void *data);
-static void ngx_http_upstream_empty_save_session(ngx_peer_connection_t *pc,
- void *data);
-
-#endif
-
-
-ngx_int_t
-ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
- ngx_http_upstream_srv_conf_t *us)
-{
- ngx_url_t u;
- ngx_uint_t i, j, n, w;
- ngx_http_upstream_server_t *server;
- ngx_http_upstream_rr_peer_t *peer;
- ngx_http_upstream_rr_peers_t *peers, *backup;
-
- us->peer.init = ngx_http_upstream_init_round_robin_peer;
-
- if (us->servers) {
- server = us->servers->elts;
-
- n = 0;
- w = 0;
-
- for (i = 0; i < us->servers->nelts; i++) {
- if (server[i].backup) {
- continue;
- }
-
- n += server[i].naddrs;
- w += server[i].naddrs * server[i].weight;
- }
-
- if (n == 0) {
- ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
- "no servers in upstream \"%V\" in %s:%ui",
- &us->host, us->file_name, us->line);
- return NGX_ERROR;
- }
-
- peers = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_rr_peers_t)
- + sizeof(ngx_http_upstream_rr_peer_t) * (n - 1));
- if (peers == NULL) {
- return NGX_ERROR;
- }
-
- peers->single = (n == 1);
- peers->number = n;
- peers->weighted = (w != n);
- peers->total_weight = w;
- peers->name = &us->host;
-
- n = 0;
- peer = peers->peer;
-
- for (i = 0; i < us->servers->nelts; i++) {
- if (server[i].backup) {
- continue;
- }
-
- for (j = 0; j < server[i].naddrs; j++) {
- peer[n].sockaddr = server[i].addrs[j].sockaddr;
- peer[n].socklen = server[i].addrs[j].socklen;
- peer[n].name = server[i].addrs[j].name;
- peer[n].weight = server[i].weight;
- peer[n].effective_weight = server[i].weight;
- peer[n].current_weight = 0;
- peer[n].max_fails = server[i].max_fails;
- peer[n].fail_timeout = server[i].fail_timeout;
- peer[n].down = server[i].down;
- peer[n].server = server[i].name;
- n++;
- }
- }
-
- us->peer.data = peers;
-
- /* backup servers */
-
- n = 0;
- w = 0;
-
- for (i = 0; i < us->servers->nelts; i++) {
- if (!server[i].backup) {
- continue;
- }
-
- n += server[i].naddrs;
- w += server[i].naddrs * server[i].weight;
- }
-
- if (n == 0) {
- return NGX_OK;
- }
-
- backup = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_rr_peers_t)
- + sizeof(ngx_http_upstream_rr_peer_t) * (n - 1));
- if (backup == NULL) {
- return NGX_ERROR;
- }
-
- peers->single = 0;
- backup->single = 0;
- backup->number = n;
- backup->weighted = (w != n);
- backup->total_weight = w;
- backup->name = &us->host;
-
- n = 0;
- peer = backup->peer;
-
- for (i = 0; i < us->servers->nelts; i++) {
- if (!server[i].backup) {
- continue;
- }
-
- for (j = 0; j < server[i].naddrs; j++) {
- peer[n].sockaddr = server[i].addrs[j].sockaddr;
- peer[n].socklen = server[i].addrs[j].socklen;
- peer[n].name = server[i].addrs[j].name;
- peer[n].weight = server[i].weight;
- peer[n].effective_weight = server[i].weight;
- peer[n].current_weight = 0;
- peer[n].max_fails = server[i].max_fails;
- peer[n].fail_timeout = server[i].fail_timeout;
- peer[n].down = server[i].down;
- peer[n].server = server[i].name;
- n++;
- }
- }
-
- peers->next = backup;
-
- return NGX_OK;
- }
-
-
- /* an upstream implicitly defined by proxy_pass, etc. */
-
- if (us->port == 0) {
- ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
- "no port in upstream \"%V\" in %s:%ui",
- &us->host, us->file_name, us->line);
- return NGX_ERROR;
- }
-
- ngx_memzero(&u, sizeof(ngx_url_t));
-
- u.host = us->host;
- u.port = us->port;
-
- if (ngx_inet_resolve_host(cf->pool, &u) != NGX_OK) {
- if (u.err) {
- ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
- "%s in upstream \"%V\" in %s:%ui",
- u.err, &us->host, us->file_name, us->line);
- }
-
- return NGX_ERROR;
- }
-
- n = u.naddrs;
-
- peers = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_rr_peers_t)
- + sizeof(ngx_http_upstream_rr_peer_t) * (n - 1));
- if (peers == NULL) {
- return NGX_ERROR;
- }
-
- peers->single = (n == 1);
- peers->number = n;
- peers->weighted = 0;
- peers->total_weight = n;
- peers->name = &us->host;
-
- peer = peers->peer;
-
- for (i = 0; i < u.naddrs; i++) {
- peer[i].sockaddr = u.addrs[i].sockaddr;
- peer[i].socklen = u.addrs[i].socklen;
- peer[i].name = u.addrs[i].name;
- peer[i].weight = 1;
- peer[i].effective_weight = 1;
- peer[i].current_weight = 0;
- peer[i].max_fails = 1;
- peer[i].fail_timeout = 10;
- }
-
- us->peer.data = peers;
-
- /* implicitly defined upstream has no backup servers */
-
- return NGX_OK;
-}
-
-
-ngx_int_t
-ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
- ngx_http_upstream_srv_conf_t *us)
-{
- ngx_uint_t n;
- ngx_http_upstream_rr_peer_data_t *rrp;
-
- rrp = r->upstream->peer.data;
-
- if (rrp == NULL) {
- rrp = ngx_palloc(r->pool, sizeof(ngx_http_upstream_rr_peer_data_t));
- if (rrp == NULL) {
- return NGX_ERROR;
- }
-
- r->upstream->peer.data = rrp;
- }
-
- rrp->peers = us->peer.data;
- rrp->current = 0;
-
- n = rrp->peers->number;
-
- if (rrp->peers->next && rrp->peers->next->number > n) {
- n = rrp->peers->next->number;
- }
-
- if (n <= 8 * sizeof(uintptr_t)) {
- rrp->tried = &rrp->data;
- rrp->data = 0;
-
- } else {
- n = (n + (8 * sizeof(uintptr_t) - 1)) / (8 * sizeof(uintptr_t));
-
- rrp->tried = ngx_pcalloc(r->pool, n * sizeof(uintptr_t));
- if (rrp->tried == NULL) {
- return NGX_ERROR;
- }
- }
-
- r->upstream->peer.get = ngx_http_upstream_get_round_robin_peer;
- r->upstream->peer.free = ngx_http_upstream_free_round_robin_peer;
- r->upstream->peer.tries = ngx_http_upstream_tries(rrp->peers);
-#if (NGX_HTTP_SSL)
- r->upstream->peer.set_session =
- ngx_http_upstream_set_round_robin_peer_session;
- r->upstream->peer.save_session =
- ngx_http_upstream_save_round_robin_peer_session;
-#endif
-
- return NGX_OK;
-}
-
-
-ngx_int_t
-ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
- ngx_http_upstream_resolved_t *ur)
-{
- u_char *p;
- size_t len;
- socklen_t socklen;
- ngx_uint_t i, n;
- struct sockaddr *sockaddr;
- ngx_http_upstream_rr_peer_t *peer;
- ngx_http_upstream_rr_peers_t *peers;
- ngx_http_upstream_rr_peer_data_t *rrp;
-
- rrp = r->upstream->peer.data;
-
- if (rrp == NULL) {
- rrp = ngx_palloc(r->pool, sizeof(ngx_http_upstream_rr_peer_data_t));
- if (rrp == NULL) {
- return NGX_ERROR;
- }
-
- r->upstream->peer.data = rrp;
- }
-
- peers = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_rr_peers_t)
- + sizeof(ngx_http_upstream_rr_peer_t) * (ur->naddrs - 1));
- if (peers == NULL) {
- return NGX_ERROR;
- }
-
- peers->single = (ur->naddrs == 1);
- peers->number = ur->naddrs;
- peers->name = &ur->host;
-
- peer = peers->peer;
-
- if (ur->sockaddr) {
- peer[0].sockaddr = ur->sockaddr;
- peer[0].socklen = ur->socklen;
- peer[0].name = ur->host;
- peer[0].weight = 1;
- peer[0].effective_weight = 1;
- peer[0].current_weight = 0;
- peer[0].max_fails = 1;
- peer[0].fail_timeout = 10;
-
- } else {
-
- for (i = 0; i < ur->naddrs; i++) {
-
- socklen = ur->addrs[i].socklen;
-
- sockaddr = ngx_palloc(r->pool, socklen);
- if (sockaddr == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(sockaddr, ur->addrs[i].sockaddr, socklen);
-
- switch (sockaddr->sa_family) {
-#if (NGX_HAVE_INET6)
- case AF_INET6:
- ((struct sockaddr_in6 *) sockaddr)->sin6_port = htons(ur->port);
- break;
-#endif
- default: /* AF_INET */
- ((struct sockaddr_in *) sockaddr)->sin_port = htons(ur->port);
- }
-
- p = ngx_pnalloc(r->pool, NGX_SOCKADDR_STRLEN);
- if (p == NULL) {
- return NGX_ERROR;
- }
-
- len = ngx_sock_ntop(sockaddr, socklen, p, NGX_SOCKADDR_STRLEN, 1);
-
- peer[i].sockaddr = sockaddr;
- peer[i].socklen = socklen;
- peer[i].name.len = len;
- peer[i].name.data = p;
- peer[i].weight = 1;
- peer[i].effective_weight = 1;
- peer[i].current_weight = 0;
- peer[i].max_fails = 1;
- peer[i].fail_timeout = 10;
- }
- }
-
- rrp->peers = peers;
- rrp->current = 0;
-
- if (rrp->peers->number <= 8 * sizeof(uintptr_t)) {
- rrp->tried = &rrp->data;
- rrp->data = 0;
-
- } else {
- n = (rrp->peers->number + (8 * sizeof(uintptr_t) - 1))
- / (8 * sizeof(uintptr_t));
-
- rrp->tried = ngx_pcalloc(r->pool, n * sizeof(uintptr_t));
- if (rrp->tried == NULL) {
- return NGX_ERROR;
- }
- }
-
- r->upstream->peer.get = ngx_http_upstream_get_round_robin_peer;
- r->upstream->peer.free = ngx_http_upstream_free_round_robin_peer;
- r->upstream->peer.tries = ngx_http_upstream_tries(rrp->peers);
-#if (NGX_HTTP_SSL)
- r->upstream->peer.set_session = ngx_http_upstream_empty_set_session;
- r->upstream->peer.save_session = ngx_http_upstream_empty_save_session;
-#endif
-
- return NGX_OK;
-}
-
-
-ngx_int_t
-ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
-{
- ngx_http_upstream_rr_peer_data_t *rrp = data;
-
- ngx_int_t rc;
- ngx_uint_t i, n;
- ngx_http_upstream_rr_peer_t *peer;
- ngx_http_upstream_rr_peers_t *peers;
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "get rr peer, try: %ui", pc->tries);
-
- pc->cached = 0;
- pc->connection = NULL;
-
- peers = rrp->peers;
-
- /* ngx_lock_mutex(peers->mutex); */
-
- if (peers->single) {
- peer = &peers->peer[0];
-
- if (peer->down) {
- goto failed;
- }
-
- } else {
-
- /* there are several peers */
-
- peer = ngx_http_upstream_get_peer(rrp);
-
- if (peer == NULL) {
- goto failed;
- }
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "get rr peer, current: %ui %i",
- rrp->current, peer->current_weight);
- }
-
- pc->sockaddr = peer->sockaddr;
- pc->socklen = peer->socklen;
- pc->name = &peer->name;
-
- /* ngx_unlock_mutex(peers->mutex); */
-
- return NGX_OK;
-
-failed:
-
- if (peers->next) {
-
- /* ngx_unlock_mutex(peers->mutex); */
-
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pc->log, 0, "backup servers");
-
- rrp->peers = peers->next;
-
- n = (rrp->peers->number + (8 * sizeof(uintptr_t) - 1))
- / (8 * sizeof(uintptr_t));
-
- for (i = 0; i < n; i++) {
- rrp->tried[i] = 0;
- }
-
- rc = ngx_http_upstream_get_round_robin_peer(pc, rrp);
-
- if (rc != NGX_BUSY) {
- return rc;
- }
-
- /* ngx_lock_mutex(peers->mutex); */
- }
-
- /* all peers failed, mark them as live for quick recovery */
-
- for (i = 0; i < peers->number; i++) {
- peers->peer[i].fails = 0;
- }
-
- /* ngx_unlock_mutex(peers->mutex); */
-
- pc->name = peers->name;
-
- return NGX_BUSY;
-}
-
-
-static ngx_http_upstream_rr_peer_t *
-ngx_http_upstream_get_peer(ngx_http_upstream_rr_peer_data_t *rrp)
-{
- time_t now;
- uintptr_t m;
- ngx_int_t total;
- ngx_uint_t i, n;
- ngx_http_upstream_rr_peer_t *peer, *best;
-
- now = ngx_time();
-
- best = NULL;
- total = 0;
-
- for (i = 0; i < rrp->peers->number; i++) {
-
- n = i / (8 * sizeof(uintptr_t));
- m = (uintptr_t) 1 << i % (8 * sizeof(uintptr_t));
-
- if (rrp->tried[n] & m) {
- continue;
- }
-
- peer = &rrp->peers->peer[i];
-
- if (peer->down) {
- 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 (best == NULL || peer->current_weight > best->current_weight) {
- best = peer;
- }
- }
-
- if (best == NULL) {
- return NULL;
- }
-
- i = best - &rrp->peers->peer[0];
-
- rrp->current = i;
-
- n = i / (8 * sizeof(uintptr_t));
- m = (uintptr_t) 1 << i % (8 * sizeof(uintptr_t));
-
- rrp->tried[n] |= m;
-
- best->current_weight -= total;
-
- if (now - best->checked > best->fail_timeout) {
- best->checked = now;
- }
-
- return best;
-}
-
-
-void
-ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, void *data,
- ngx_uint_t state)
-{
- ngx_http_upstream_rr_peer_data_t *rrp = data;
-
- time_t now;
- ngx_http_upstream_rr_peer_t *peer;
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "free rr peer %ui %ui", pc->tries, state);
-
- /* TODO: NGX_PEER_KEEPALIVE */
-
- if (rrp->peers->single) {
- pc->tries = 0;
- return;
- }
-
- peer = &rrp->peers->peer[rrp->current];
-
- if (state & NGX_PEER_FAILED) {
- now = ngx_time();
-
- /* ngx_lock_mutex(rrp->peers->mutex); */
-
- peer->fails++;
- peer->accessed = now;
- peer->checked = now;
-
- if (peer->max_fails) {
- peer->effective_weight -= peer->weight / peer->max_fails;
- }
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "free rr peer failed: %ui %i",
- rrp->current, peer->effective_weight);
-
- if (peer->effective_weight < 0) {
- peer->effective_weight = 0;
- }
-
- /* ngx_unlock_mutex(rrp->peers->mutex); */
-
- } else {
-
- /* mark peer live if check passed */
-
- if (peer->accessed < peer->checked) {
- peer->fails = 0;
- }
- }
-
- if (pc->tries) {
- pc->tries--;
- }
-
- /* ngx_unlock_mutex(rrp->peers->mutex); */
-}
-
-
-#if (NGX_HTTP_SSL)
-
-ngx_int_t
-ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc,
- void *data)
-{
- ngx_http_upstream_rr_peer_data_t *rrp = data;
-
- ngx_int_t rc;
- ngx_ssl_session_t *ssl_session;
- ngx_http_upstream_rr_peer_t *peer;
-
- peer = &rrp->peers->peer[rrp->current];
-
- /* TODO: threads only mutex */
- /* ngx_lock_mutex(rrp->peers->mutex); */
-
- ssl_session = peer->ssl_session;
-
- rc = ngx_ssl_set_session(pc->connection, ssl_session);
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "set session: %p", ssl_session);
-
- /* ngx_unlock_mutex(rrp->peers->mutex); */
-
- return rc;
-}
-
-
-void
-ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc,
- void *data)
-{
- ngx_http_upstream_rr_peer_data_t *rrp = data;
-
- ngx_ssl_session_t *old_ssl_session, *ssl_session;
- ngx_http_upstream_rr_peer_t *peer;
-
- ssl_session = ngx_ssl_get_session(pc->connection);
-
- if (ssl_session == NULL) {
- return;
- }
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "save session: %p", ssl_session);
-
- peer = &rrp->peers->peer[rrp->current];
-
- /* TODO: threads only mutex */
- /* ngx_lock_mutex(rrp->peers->mutex); */
-
- old_ssl_session = peer->ssl_session;
- peer->ssl_session = ssl_session;
-
- /* ngx_unlock_mutex(rrp->peers->mutex); */
-
- if (old_ssl_session) {
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pc->log, 0,
- "old session: %p", old_ssl_session);
-
- /* TODO: may block */
-
- ngx_ssl_free_session(old_ssl_session);
- }
-}
-
-
-static ngx_int_t
-ngx_http_upstream_empty_set_session(ngx_peer_connection_t *pc, void *data)
-{
- return NGX_OK;
-}
-
-
-static void
-ngx_http_upstream_empty_save_session(ngx_peer_connection_t *pc, void *data)
-{
- return;
-}
-
-#endif
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