diff --git a/ab.c b/ab.c
index 7423224..d346b5e 100644
--- a/ab.c
+++ b/ab.c
@@ -164,8 +164,11 @@ static void init()
 	g_free(path);
 }
 
+static GMutex datam;
 static char *datafunc(char *req)
 {
+	g_mutex_lock(&datam);
+
 	if (initt)
 	{
 		g_thread_join(initt);
@@ -187,6 +190,7 @@ static char *datafunc(char *req)
 		D(BLOCKED %s, req)
 #endif
 
+	g_mutex_unlock(&datam);
 	return ret;
 }
 
diff --git a/wyebrun.c b/wyebrun.c
index 730a801..602c811 100644
--- a/wyebrun.c
+++ b/wyebrun.c
@@ -96,6 +96,9 @@ static char *preparepp(char *exe, char *name)
 static bool ipcsend(char *exe, char *name,
 		Com type, char *caller, char *data)
 {
+	static GMutex sendm;
+	g_mutex_lock(&sendm);
+
 	//D(ipcsend exe:%s name:%s, exe, name)
 	char *path = preparepp(exe, name);
 
@@ -111,6 +114,8 @@ static bool ipcsend(char *exe, char *name,
 	close(pp);
 
 	g_free(path);
+
+	g_mutex_unlock(&sendm);
 	return ret;
 }
 
@@ -136,21 +141,30 @@ static char *svrexe = NULL;
 static GMainLoop *sloop = NULL;
 static wyebdataf dataf = NULL;
 static GHashTable *orders = NULL;
+static GMutex ordersm;
 
-static gboolean quit(gpointer p)
+static gboolean quitif(gpointer p)
 {
-	DD(SVR QUITS\n)
-	g_main_loop_quit(sloop);
-	return false;
+	g_mutex_lock(&ordersm);
+	if (!g_hash_table_size(orders))
+	{
+		DD(SVR QUITS\n)
+		g_main_loop_quit(sloop);
+	}
+	g_mutex_unlock(&ordersm);
+	return true;
 }
 static void until(int sec)
 {
 	if (!sloop) return;
 
 	static guint last = 0;
+	static GMutex lastm;
+	g_mutex_lock(&lastm);
 	if (last)
 		g_source_remove(last);
-	last = g_timeout_add_full(G_PRIORITY_LOW * 2, sec * 1000, quit, NULL, NULL);
+	last = g_timeout_add_full(G_PRIORITY_LOW * 2, sec * 1000, quitif, NULL, NULL);
+	g_mutex_unlock(&lastm);
 }
 static gpointer pingt(gpointer p)
 {
@@ -174,12 +188,6 @@ void wyebwatch(char *exe, char *caller, wyebdataf func)
 		fatal(1);
 }
 
-static gboolean quitif(gpointer p)
-{
-	static int cnt = 0;
-	if (cnt++ > 30 /* 3 secs */ || !g_hash_table_size(orders)) quit(NULL);
-	return true;
-}
 static void monitorcb(GFileMonitor *m, GFile *f, GFile *o, GFileMonitorEvent e,
 		gpointer p)
 {
@@ -215,13 +223,36 @@ bool wyebsvr(int argc, char **argv, wyebdataf func)
 	return true;
 }
 
-static void getdata(char *caller, char *req)
-{
-	char *data = dataf(req);
-	if (*caller && !ipcsend(svrexe, caller, CCret, "", data))
-		fatal(2);
 
+typedef struct {
+	char *caller;
+	char *req;
+	int until;
+} Dataargs;
+static gpointer getdata(gpointer p)
+{
+	Dataargs *args = p;
+
+	g_mutex_lock(&ordersm);
+	g_hash_table_add(orders, args->caller);
+	g_mutex_unlock(&ordersm);
+
+	char *data = dataf(args->req);
+	if (*args->caller && !ipcsend(svrexe, args->caller, CCret, "", data)) fatal(2);
 	g_free(data);
+
+	until(args->until);
+
+	g_mutex_lock(&ordersm);
+	g_hash_table_remove(orders, args->caller);
+	g_mutex_unlock(&ordersm);
+
+
+	g_free(args->caller);
+	g_free(args->req);
+	g_free(args);
+
+	return NULL;
 }
 
 
@@ -310,6 +341,7 @@ static void reuntil(char *exe)
 	if (!lastsec) return;
 	int sec = GPOINTER_TO_INT(
 		g_hash_table_lookup(lastsec, exe));
+
 	if (sec)
 		wyebuntil(exe, sec);
 }
@@ -453,7 +485,7 @@ static gboolean tcinputcb(GIOChannel *ch, GIOCondition c, char *exe)
 	if (g_str_has_prefix(line, "l"))
 	{
 		start = g_get_monotonic_time();
-		for (int i = 0; i < 1000; i++)
+		for (int i = 0; i < 10000; i++)
 		{
 			char *is = g_strdup_printf("l%d", i);
 			//g_print("loop %d ret %s\n", i, wyebreq(exe, is));
@@ -482,7 +514,12 @@ static gboolean tcinputcb(GIOChannel *ch, GIOCondition c, char *exe)
 static gboolean tcinit(char *exe)
 {
 	//wyebuntil(exe, 1);
+	//wyebloop(exe, 2, 1);
+#if DEBUG
+	wyebloop(exe, 300, 200);
+#else
 	wyebloop(exe, 2, 1);
+#endif
 
 	GIOChannel *io = g_io_channel_unix_new(fileno(stdin));
 	g_io_add_watch(io, G_IO_IN | G_IO_HUP, (GIOFunc)tcinputcb, exe);
@@ -527,14 +564,19 @@ gboolean ipccb(GIOChannel *ch, GIOCondition c, gpointer p)
 		until(lastuntil = atoi(arg));
 		break;
 	case CSdata:
-		g_hash_table_add(orders, id);
-		getdata(id, arg);
-		g_hash_table_remove(orders, id);
-		until(lastuntil);
+	{
+		Dataargs *args = g_new(Dataargs, 1);
+		args->caller = g_strdup(id);
+		args->req    = g_strdup(arg);
+		args->until  = lastuntil;
+		g_thread_unref(g_thread_new("getdata", getdata, args));
 		break;
+	}
 	case CSping:
+		g_mutex_lock(&ordersm);
 		if (!g_hash_table_lookup(orders, id))
 			ipcsend(svrexe, id, CClost, NULL, NULL);
+		g_mutex_unlock(&ordersm);
 		break;
 
 	//client
@@ -542,7 +584,8 @@ gboolean ipccb(GIOChannel *ch, GIOCondition c, gpointer p)
 		retdata = g_strdup(arg);
 	case CClost:
 	case CCwoke:
-		//g_main_loop_quit(cloop);
+		//for the case pinging at same time of ret
+		g_mutex_trylock(&retm);
 		g_mutex_unlock(&retm);
 		break;
 	}
@@ -561,7 +604,7 @@ static char *testdata(char *req)
 	//g_free(req); //makes crash
 
 	static int i = 0;
-	return g_strdup_printf("%d th dummy data. req is %s", ++i, req);
+	return g_strdup_printf("%d th test data. req is %s", ++i, req);
 }