diff --git a/HISTORY b/HISTORY
index 334df13..694fe75 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,8 +1,9 @@
 
-Version 1.06  2014-06-05
+Version 1.06  2014-06-06
   * update source code from FastDFS V5.02
   * add function short2buff and buff2short
   * add object memory pool (fast_mblock.h and fast_mblock.c)
+  * add member thread_loop_callback in nio_thread_data
 
 Version 1.05  2012-07-08
   * update source code from FastDFS V3.09
diff --git a/src/fast_task_queue.h b/src/fast_task_queue.h
index 7eb8f0f..091a6a9 100644
--- a/src/fast_task_queue.h
+++ b/src/fast_task_queue.h
@@ -19,10 +19,12 @@
 #include "ioevent.h"
 #include "fast_timer.h"
 
+struct nio_thread_data;
 struct fast_task_info;
 
-typedef int (*TaskFinishCallBack) (struct fast_task_info *pTask);
-typedef void (*TaskCleanUpCallBack) (struct fast_task_info *pTask);
+typedef int (*ThreadLoopCallback) (struct nio_thread_data *pThreadData);
+typedef int (*TaskFinishCallback) (struct fast_task_info *pTask);
+typedef void (*TaskCleanUpCallback) (struct fast_task_info *pTask);
 
 typedef void (*IOEventCallback) (int sock, short event, void *arg);
 
@@ -39,6 +41,7 @@ struct nio_thread_data
 	struct fast_timer timer;
 	int pipe_fds[2];
 	struct fast_task_info *deleted_list;
+    ThreadLoopCallback thread_loop_callback;
 	void *arg;   //extra argument pointer
 };
 
@@ -52,7 +55,7 @@ struct fast_task_info
 	int length; //data length
 	int offset; //current offset
 	int req_count; //request count
-	TaskFinishCallBack finish_callback;
+	TaskFinishCallback finish_callback;
 	struct nio_thread_data *thread_data;
 	struct fast_task_info *next;
 };
diff --git a/src/ioevent_loop.c b/src/ioevent_loop.c
index f2e2938..11b0755 100644
--- a/src/ioevent_loop.c
+++ b/src/ioevent_loop.c
@@ -38,7 +38,7 @@ static void deal_timeouts(FastTimerEntry *head)
 }
 
 int ioevent_loop(struct nio_thread_data *pThreadData,
-	IOEventCallback recv_notify_callback, TaskCleanUpCallBack
+	IOEventCallback recv_notify_callback, TaskCleanUpCallback
 	clean_up_callback, volatile bool *continue_flag)
 {
 	int result;
@@ -109,6 +109,10 @@ int ioevent_loop(struct nio_thread_data *pThreadData,
 				deal_timeouts(&head);
 			}
 		}
+
+        if (pThreadData->thread_loop_callback != NULL) {
+            pThreadData->thread_loop_callback(pThreadData);
+        }
 	}
 
 	return 0;
diff --git a/src/ioevent_loop.h b/src/ioevent_loop.h
index dbed3a1..f4ea160 100644
--- a/src/ioevent_loop.h
+++ b/src/ioevent_loop.h
@@ -8,7 +8,7 @@ extern "C" {
 #endif
 
 int ioevent_loop(struct nio_thread_data *pThreadData,
-	IOEventCallback recv_notify_callback, TaskCleanUpCallBack
+	IOEventCallback recv_notify_callback, TaskCleanUpCallback
 	clean_up_callback, volatile bool *continue_flag);
 
 int ioevent_set(struct fast_task_info *pTask, struct nio_thread_data *pThread,