feat: 新增接收dispatch反向路由

datarouter.c

@@ -17,7 +17,8 @@
 
 typedef struct {
     int                       send_type;
-    dr_send_handler_t handlers[DR_MAX_HANDLERS_PER_PORT];
+    int                       recv_type;
+    dr_send_handler_t         handlers[DR_MAX_HANDLERS_PER_PORT];
     int                       count;
     uint8_t                   in_use;
 } port_entry_t;
@@ -51,6 +52,14 @@ static const char *recv_descs[] = {
 #undef DR_RECV
 };
 
+/* ---- 接收回调函数指针表（dispatch 查表用） ---- */
+
+static void (*const recv_table[DR_RECV_CAP_COUNT])(uint32_t, const void*, size_t) = {
+#define DR_RECV(id, desc) dr_on_recv_##id,
+    DR_RECV_CAPABILITIES
+#undef DR_RECV
+};
+
 /* ---- 弱符号接收回调 ---- */
 
 #define DR_RECV(id, desc) \
@@ -102,6 +111,7 @@ dr_port_t dr_port_create(void)
         if (!ports[i].in_use) {
             ports[i].in_use    = 1;
             ports[i].send_type = -1;
+            ports[i].recv_type = -1;
             ports[i].count     = 0;
             return (dr_port_t)i;
         }
@@ -130,6 +140,29 @@ int dr_port_get_send_type(dr_port_t port)
     return ports[port].send_type;
 }
 
+void dr_port_set_recv_type(dr_port_t port, int cap_id)
+{
+    if (!initialized) return;
+    if (port < 0 || port >= DR_MAX_PORTS || !ports[port].in_use) return;
+    ports[port].recv_type = cap_id;
+}
+
+int dr_port_get_recv_type(dr_port_t port)
+{
+    if (!initialized) return -1;
+    if (port < 0 || port >= DR_MAX_PORTS || !ports[port].in_use) return -1;
+    return ports[port].recv_type;
+}
+
+void dr_port_dispatch(dr_port_t port, const void *data, size_t len)
+{
+    if (!initialized) return;
+    if (port < 0 || port >= DR_MAX_PORTS || !ports[port].in_use) return;
+    int rid = ports[port].recv_type;
+    if (rid < 0 || rid >= DR_RECV_CAP_COUNT) return;
+    recv_table[rid]((uint32_t)port, data, len);
+}
+
 int dr_port_add_handler(dr_port_t port, dr_send_handler_t handler)
 {
     if (!initialized) return -1;