Add name parameter to uasync_set_timeout for timer identification in dumps

lib/u_async.c

@@ -32,6 +32,7 @@
 
 // Timeout node with safe cancellation
 struct timeout_node {
+    char name[16];
     void* arg;
     timeout_callback_t callback;
     uint64_t expiration_ms; // absolute expiration time in milliseconds
@@ -491,22 +492,28 @@ static void get_next_timeout(struct UASYNC* ua, struct timeval* tv) {
 
 
 
-// Instance version
-void* uasync_set_timeout(struct UASYNC* ua, int timeout_tb, void* arg, timeout_callback_t callback) {
-    if (!ua || timeout_tb < 0 || !callback) return NULL;
-    if (!ua->timeout_heap) return NULL;
-    
-//    DEBUG_DEBUG(DEBUG_CATEGORY_TIMERS, "uasync_set_timeout: timeout=%d.%d ms, arg=%p, callback=%p", timeout_tb/10, timeout_tb%10, arg, callback);
-    
+// Instance version
+void* uasync_set_timeout(struct UASYNC* ua, int timeout_tb, void* arg, timeout_callback_t callback, const char* name) {
+    if (!ua || timeout_tb < 0 || !callback) return NULL;
+    if (!ua->timeout_heap) return NULL;
+    
+//    DEBUG_DEBUG(DEBUG_CATEGORY_TIMERS, "uasync_set_timeout: timeout=%d.%d ms, arg=%p, callback=%p", timeout_tb/10, timeout_tb%10, arg, callback);
+    
     struct timeout_node* node = memory_pool_alloc(ua->timeout_pool);
     if (!node) {
         DEBUG_ERROR(DEBUG_CATEGORY_TIMERS, "uasync_set_timeout: failed to allocate node");
         return NULL;
-    }
-    ua->timer_alloc_count++;
-    
-    node->arg = arg;
-    node->callback = callback;
+    }
+    ua->timer_alloc_count++;
+    
+    if (name) {
+        strncpy(node->name, name, sizeof(node->name) - 1);
+        node->name[sizeof(node->name) - 1] = '\0';
+    } else {
+        node->name[0] = '\0';
+    }
+    node->arg = arg;
+    node->callback = callback;
     node->ua = ua;
     
     // Calculate expiration time in milliseconds
@@ -538,6 +545,7 @@ void* uasync_call_soon(struct UASYNC* ua, void* user_arg, timeout_callback_t cal
     }
     ua->timer_alloc_count++;
     
+    node->name[0] = '\0';
     node->arg = user_arg;
     node->callback = callback;
     node->ua = ua;