Initial commit

2018-02-14 15:05:29 +09:00
commit 20f797d2f6
8093 changed files with 1360150 additions and 0 deletions
@@ -0,0 +1,154 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#ifndef _NGX_STREAM_UPSTREAM_H_INCLUDED_
+#define _NGX_STREAM_UPSTREAM_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_stream.h>
+#include <ngx_event_connect.h>
+
+
+#define NGX_STREAM_UPSTREAM_CREATE        0x0001
+#define NGX_STREAM_UPSTREAM_WEIGHT        0x0002
+#define NGX_STREAM_UPSTREAM_MAX_FAILS     0x0004
+#define NGX_STREAM_UPSTREAM_FAIL_TIMEOUT  0x0008
+#define NGX_STREAM_UPSTREAM_DOWN          0x0010
+#define NGX_STREAM_UPSTREAM_BACKUP        0x0020
+#define NGX_STREAM_UPSTREAM_MAX_CONNS     0x0100
+
+
+#define NGX_STREAM_UPSTREAM_NOTIFY_CONNECT     0x1
+
+
+typedef struct {
+    ngx_array_t                        upstreams;
+                                           /* ngx_stream_upstream_srv_conf_t */
+} ngx_stream_upstream_main_conf_t;
+
+
+typedef struct ngx_stream_upstream_srv_conf_s  ngx_stream_upstream_srv_conf_t;
+
+
+typedef ngx_int_t (*ngx_stream_upstream_init_pt)(ngx_conf_t *cf,
+    ngx_stream_upstream_srv_conf_t *us);
+typedef ngx_int_t (*ngx_stream_upstream_init_peer_pt)(ngx_stream_session_t *s,
+    ngx_stream_upstream_srv_conf_t *us);
+
+
+typedef struct {
+    ngx_stream_upstream_init_pt        init_upstream;
+    ngx_stream_upstream_init_peer_pt   init;
+    void                              *data;
+} ngx_stream_upstream_peer_t;
+
+
+typedef struct {
+    ngx_str_t                          name;
+    ngx_addr_t                        *addrs;
+    ngx_uint_t                         naddrs;
+    ngx_uint_t                         weight;
+    ngx_uint_t                         max_conns;
+    ngx_uint_t                         max_fails;
+    time_t                             fail_timeout;
+    ngx_msec_t                         slow_start;
+    ngx_uint_t                         down;
+
+    unsigned                           backup:1;
+
+    NGX_COMPAT_BEGIN(4)
+    NGX_COMPAT_END
+} ngx_stream_upstream_server_t;
+
+
+struct ngx_stream_upstream_srv_conf_s {
+    ngx_stream_upstream_peer_t         peer;
+    void                             **srv_conf;
+
+    ngx_array_t                       *servers;
+                                              /* ngx_stream_upstream_server_t */
+
+    ngx_uint_t                         flags;
+    ngx_str_t                          host;
+    u_char                            *file_name;
+    ngx_uint_t                         line;
+    in_port_t                          port;
+    ngx_uint_t                         no_port;  /* unsigned no_port:1 */
+
+#if (NGX_STREAM_UPSTREAM_ZONE)
+    ngx_shm_zone_t                    *shm_zone;
+#endif
+};
+
+
+typedef struct {
+    ngx_msec_t                         response_time;
+    ngx_msec_t                         connect_time;
+    ngx_msec_t                         first_byte_time;
+    off_t                              bytes_sent;
+    off_t                              bytes_received;
+
+    ngx_str_t                         *peer;
+} ngx_stream_upstream_state_t;
+
+
+typedef struct {
+    ngx_str_t                          host;
+    in_port_t                          port;
+    ngx_uint_t                         no_port; /* unsigned no_port:1 */
+
+    ngx_uint_t                         naddrs;
+    ngx_resolver_addr_t               *addrs;
+
+    struct sockaddr                   *sockaddr;
+    socklen_t                          socklen;
+    ngx_str_t                          name;
+
+    ngx_resolver_ctx_t                *ctx;
+} ngx_stream_upstream_resolved_t;
+
+
+typedef struct {
+    ngx_peer_connection_t              peer;
+
+    ngx_buf_t                          downstream_buf;
+    ngx_buf_t                          upstream_buf;
+
+    ngx_chain_t                       *free;
+    ngx_chain_t                       *upstream_out;
+    ngx_chain_t                       *upstream_busy;
+    ngx_chain_t                       *downstream_out;
+    ngx_chain_t                       *downstream_busy;
+
+    off_t                              received;
+    time_t                             start_sec;
+    ngx_uint_t                         responses;
+
+    ngx_str_t                          ssl_name;
+
+    ngx_stream_upstream_srv_conf_t    *upstream;
+    ngx_stream_upstream_resolved_t    *resolved;
+    ngx_stream_upstream_state_t       *state;
+    unsigned                           connected:1;
+    unsigned                           proxy_protocol:1;
+} ngx_stream_upstream_t;
+
+
+ngx_stream_upstream_srv_conf_t *ngx_stream_upstream_add(ngx_conf_t *cf,
+    ngx_url_t *u, ngx_uint_t flags);
+
+
+#define ngx_stream_conf_upstream_srv_conf(uscf, module)                       \
+    uscf->srv_conf[module.ctx_index]
+
+
+extern ngx_module_t  ngx_stream_upstream_module;
+
+
+#endif /* _NGX_STREAM_UPSTREAM_H_INCLUDED_ */