feature: add privileged agent connections.

Author: Yao Wang

src/ngx_stream_lua_worker.c

@@ -106,7 +106,7 @@ ngx_stream_lua_ffi_get_process_type(void)
 
 
 int
-ngx_stream_lua_ffi_enable_privileged_agent(char **err)
+ngx_stream_lua_ffi_enable_privileged_agent(char **err, unsigned int connections)
 {
 #ifdef HAVE_PRIVILEGED_PROCESS_PATCH
     ngx_core_conf_t   *ccf;
@@ -115,6 +115,7 @@ ngx_stream_lua_ffi_enable_privileged_agent(char **err)
                                            ngx_core_module);
 
     ccf->privileged_agent = 1;
+    ccf->privileged_agent_connections = connections;
 
     return NGX_OK;