19

prj/TCPClient/Middle/QDXnetworkStack/qdx_port.c

@@ -428,3 +428,20 @@ void qdx_port_tcp_close(qdx_socket_t sock)
     ring_init(&ctx->rx_ring);
     free_sock_ctx(ctx);
 }
+
+/* ============================================================
+ * WCHNET global lock — exposed for task_wchnet_entry in main.c
+ * All WCHNET API calls must be serialized through this mutex.
+ * ============================================================ */
+
+void qdx_port_net_lock(void)
+{
+    if (g_wchnet_mutex)
+        xSemaphoreTake(g_wchnet_mutex, portMAX_DELAY);
+}
+
+void qdx_port_net_unlock(void)
+{
+    if (g_wchnet_mutex)
+        xSemaphoreGive(g_wchnet_mutex);
+}