Using port rpc in controller->router configuration update.

src/nxt_controller.c

@@ -776,8 +776,9 @@ nxt_controller_conf_apply(nxt_task_t *task, nxt_controller_request_t *req)
 }
 
 
-void
-nxt_port_controller_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg)
+static void
+nxt_controller_conf_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg,
+    void *data)
 {
     size_t                     size;
     nxt_buf_t                  *b;
@@ -787,15 +788,14 @@ nxt_port_controller_data_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg)
     b = msg->buf;
     size = b->mem.free - b->mem.pos;
 
-    nxt_debug(task, "contoller data: %*s ...", size, b->mem.pos);
+    nxt_debug(task, "controller conf ready: %*s ...", size, b->mem.pos);
 
     nxt_memzero(&resp, sizeof(nxt_controller_response_t));
 
     req = nxt_controller_current_request;
     nxt_controller_current_request = NULL;
 
-    if (size == 2 && nxt_memcmp(b->mem.pos, "OK", 2) == 0) {
-
+    if (msg->port_msg.type == NXT_PORT_MSG_RPC_READY) {
         nxt_mp_destroy(nxt_controller_conf.pool);
 
         nxt_controller_conf = req->conf;
@@ -848,22 +848,36 @@ static nxt_int_t
 nxt_controller_conf_pass(nxt_task_t *task, nxt_conf_value_t *conf)
 {
     size_t         size;
+    uint32_t       stream;
+    nxt_int_t      rc;
     nxt_buf_t      *b;
-    nxt_port_t     *port;
+    nxt_port_t     *router_port, *controller_port;
     nxt_runtime_t  *rt;
 
     rt = task->thread->runtime;
 
-    port = rt->port_by_type[NXT_PROCESS_ROUTER];
+    router_port = rt->port_by_type[NXT_PROCESS_ROUTER];
+    controller_port = rt->port_by_type[NXT_PROCESS_CONTROLLER];
 
     size = nxt_conf_json_length(conf, NULL);
 
-    b = nxt_port_mmap_get_buf(task, port, size);
+    b = nxt_port_mmap_get_buf(task, router_port, size);
 
     b->mem.free = nxt_conf_json_print(b->mem.free, conf, NULL);
 
-    return nxt_port_socket_write(task, port, NXT_PORT_MSG_DATA_LAST, -1, 0,
-                                 0, b);
+    stream = nxt_port_rpc_register_handler(task, controller_port,
+                                           nxt_controller_conf_handler,
+                                           nxt_controller_conf_handler,
+                                           router_port->pid, NULL);
+
+    rc = nxt_port_socket_write(task, router_port, NXT_PORT_MSG_DATA_LAST, -1,
+                               stream, controller_port->id, b);
+
+    if (nxt_slow_path(rc != NXT_OK)) {
+        nxt_port_rpc_cancel(task, controller_port, stream);
+    }
+
+    return rc;
 }
 
 

src/nxt_router.c

@@ -53,9 +53,7 @@ static void nxt_router_conf_success(nxt_task_t *task,
 static void nxt_router_conf_error(nxt_task_t *task,
     nxt_router_temp_conf_t *tmcf);
 static void nxt_router_conf_send(nxt_task_t *task,
-    nxt_router_temp_conf_t *tmcf, u_char *start, size_t size);
-static void nxt_router_conf_buf_completion(nxt_task_t *task, void *obj,
-    void *data);
+    nxt_router_temp_conf_t *tmcf, nxt_port_msg_type_t type);
 static void nxt_router_listen_sockets_sort(nxt_router_t *router,
     nxt_router_temp_conf_t *tmcf);
 
@@ -490,7 +488,7 @@ nxt_router_conf_success(nxt_task_t *task, nxt_router_temp_conf_t *tmcf)
     nxt_debug(task, "temp conf count:%D", tmcf->count);
 
     if (--tmcf->count == 0) {
-        nxt_router_conf_send(task, tmcf, (u_char *) "OK", 2);
+        nxt_router_conf_send(task, tmcf, NXT_PORT_MSG_RPC_READY_LAST);
     }
 }
 
@@ -526,40 +524,15 @@ nxt_router_conf_error(nxt_task_t *task, nxt_router_temp_conf_t *tmcf)
 
     nxt_mp_destroy(tmcf->conf->mem_pool);
 
-    nxt_router_conf_send(task, tmcf, (u_char *) "ERROR", 5);
+    nxt_router_conf_send(task, tmcf, NXT_PORT_MSG_RPC_ERROR);
 }
 
 
 static void
 nxt_router_conf_send(nxt_task_t *task, nxt_router_temp_conf_t *tmcf,
-    u_char *start, size_t size)
+    nxt_port_msg_type_t type)
 {
-    nxt_buf_t  *b;
-
-    b = nxt_buf_mem_alloc(tmcf->mem_pool, size, 0);
-    if (nxt_slow_path(b == NULL)) {
-        return;
-    }
-
-    b->mem.free = nxt_cpymem(b->mem.free, start, size);
-
-    b->parent = tmcf->mem_pool;
-    b->completion_handler = nxt_router_conf_buf_completion;
-
-    nxt_port_socket_write(task, tmcf->port, NXT_PORT_MSG_DATA_LAST, -1,
-                          tmcf->stream, 0, b);
-}
-
-
-static void
-nxt_router_conf_buf_completion(nxt_task_t *task, void *obj, void *data)
-{
-    nxt_mp_t  *mp;
-
-    /* nxt_router_temp_conf_t mem pool. */
-    mp = data;
-
-    nxt_mp_destroy(mp);
+    nxt_port_socket_write(task, tmcf->port, type, -1, tmcf->stream, 0, NULL);
 }
 
 

src/nxt_runtime.h

@@ -135,9 +135,6 @@ nxt_port_t *nxt_runtime_port_first(nxt_runtime_t *rt,
 /* STUB */
 nxt_int_t nxt_runtime_controller_socket(nxt_task_t *task, nxt_runtime_t *rt);
 
-void nxt_port_controller_data_handler(nxt_task_t *task,
-    nxt_port_recv_msg_t *msg);
-
 nxt_str_t *nxt_current_directory(nxt_mp_t *mp);
 
 nxt_listen_socket_t *nxt_runtime_listen_socket_add(nxt_runtime_t *rt,

src/nxt_worker_process.c

@@ -27,7 +27,7 @@ nxt_port_handler_t  nxt_controller_process_port_handlers[] = {
     nxt_port_new_port_handler,
     nxt_port_change_log_file_handler,
     nxt_port_mmap_handler,
-    nxt_port_controller_data_handler,
+    nxt_port_data_handler,
     nxt_port_remove_pid_handler,
     NULL, /* NXT_PORT_MSG_READY        */
     NULL, /* NXT_PORT_MSG_START_WORKER */