Stream: added preconfiguration step.

src/stream/ngx_stream.c

@@ -143,11 +143,26 @@ ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     }
 
 
-    /* parse inside the stream{} block */
-
     pcf = *cf;
     cf->ctx = ctx;
 
+    for (m = 0; cf->cycle->modules[m]; m++) {
+        if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) {
+            continue;
+        }
+
+        module = cf->cycle->modules[m]->ctx;
+
+        if (module->preconfiguration) {
+            if (module->preconfiguration(cf) != NGX_OK) {
+                return NGX_CONF_ERROR;
+            }
+        }
+    }
+
+
+    /* parse inside the stream{} block */
+
     cf->module_type = NGX_STREAM_MODULE;
     cf->cmd_type = NGX_STREAM_MAIN_CONF;
     rv = ngx_conf_parse(cf, NULL);

src/stream/ngx_stream.h

@@ -145,6 +145,7 @@ struct ngx_stream_session_s {
 
 
 typedef struct {
+    ngx_int_t             (*preconfiguration)(ngx_conf_t *cf);
     ngx_int_t             (*postconfiguration)(ngx_conf_t *cf);
 
     void                 *(*create_main_conf)(ngx_conf_t *cf);

src/stream/ngx_stream_access_module.c

@@ -88,6 +88,7 @@ static ngx_command_t  ngx_stream_access_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_access_module_ctx = {
+    NULL,                                  /* preconfiguration */
     ngx_stream_access_init,                /* postconfiguration */
 
     NULL,                                  /* create main configuration */

src/stream/ngx_stream_core_module.c

@@ -57,6 +57,7 @@ static ngx_command_t  ngx_stream_core_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_core_module_ctx = {
+    NULL,                                  /* preconfiguration */
     NULL,                                  /* postconfiguration */
 
     ngx_stream_core_create_main_conf,      /* create main configuration */

src/stream/ngx_stream_limit_conn_module.c

@@ -93,6 +93,7 @@ static ngx_command_t  ngx_stream_limit_conn_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_limit_conn_module_ctx = {
+    NULL,                                  /* preconfiguration */
     ngx_stream_limit_conn_init,            /* postconfiguration */
 
     NULL,                                  /* create main configuration */

src/stream/ngx_stream_proxy_module.c

@@ -314,6 +314,7 @@ static ngx_command_t  ngx_stream_proxy_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_proxy_module_ctx = {
+    NULL,                                  /* preconfiguration */
     NULL,                                  /* postconfiguration */
 
     NULL,                                  /* create main configuration */

src/stream/ngx_stream_ssl_module.c

@@ -132,6 +132,7 @@ static ngx_command_t  ngx_stream_ssl_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_ssl_module_ctx = {
+    NULL,                                  /* preconfiguration */
     NULL,                                  /* postconfiguration */
 
     NULL,                                  /* create main configuration */

src/stream/ngx_stream_upstream.c

@@ -39,6 +39,7 @@ static ngx_command_t  ngx_stream_upstream_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_upstream_module_ctx = {
+    NULL,                                  /* preconfiguration */
     NULL,                                  /* postconfiguration */
 
     ngx_stream_upstream_create_main_conf,  /* create main configuration */

src/stream/ngx_stream_upstream_hash_module.c

@@ -76,6 +76,7 @@ static ngx_command_t  ngx_stream_upstream_hash_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_upstream_hash_module_ctx = {
+    NULL,                                  /* preconfiguration */
     NULL,                                  /* postconfiguration */
 
     NULL,                                  /* create main configuration */

src/stream/ngx_stream_upstream_least_conn_module.c

@@ -32,6 +32,7 @@ static ngx_command_t  ngx_stream_upstream_least_conn_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_upstream_least_conn_module_ctx = {
+    NULL,                                    /* preconfiguration */
     NULL,                                    /* postconfiguration */
 
     NULL,                                    /* create main configuration */

src/stream/ngx_stream_upstream_zone_module.c

@@ -32,6 +32,7 @@ static ngx_command_t  ngx_stream_upstream_zone_commands[] = {
 
 
 static ngx_stream_module_t  ngx_stream_upstream_zone_module_ctx = {
+    NULL,                                  /* preconfiguration */
     NULL,                                  /* postconfiguration */
 
     NULL,                                  /* create main configuration */