tests: reduce probability of locks during macos runs of live_test.v

vlib/v/tests/live_test.v

@@ -52,7 +52,6 @@ fn append_to_file(fname, s string) {
 	f.writeln('\$s')
 	//info := live.info()
 	//f.writeln('>>> reloads: \${info.reloads} | ok reloads: \${info.reloads_ok}')
-	f.flush()
 	f.close()
 }
 
@@ -64,13 +63,11 @@ fn myprintln(s string) {
 
 [live]
 fn pmessage() string {
-	s := 'ORIGINAL'
-	myprintln(s)
-	return s
+	return 'ORIGINAL'
 }
 
 const (
-	delay = 5
+	delay = 20
 )
 fn edefault(name string, default string) string {
 	res := os.getenv(name)
@@ -87,14 +84,15 @@ fn main() {
 	pmessage()
 	pmessage()
 	max_cycles := edefault('LIVE_CYCLES', '1').int()
-	// NB: 1000 * 5 = maximum of ~5s runtime
+	// NB: 1000 * 20 = maximum of ~20s runtime
 	for i:=0; i<max_cycles; i++ {
 		s := pmessage()
+		myprintln(s)
 		append_to_file(os.resource_abs_path(s + '.txt'), s)
-		time.sleep_ms(delay)
 		if s == 'STOP' {
 			break
 		}
+		time.sleep_ms(delay)
 	}
 	pmessage()
 	pmessage()
@@ -192,8 +190,8 @@ fn setup_cycles_environment() {
 	mut max_live_cycles := 1000
 	mut max_wait_cycles := 400
 	if os.user_os() == 'macos' {
-		max_live_cycles *= 5
-		max_wait_cycles *= 5
+//		max_live_cycles *= 5
+//		max_wait_cycles *= 5
 	}
 	os.setenv('LIVE_CYCLES', '$max_live_cycles', true)
 	os.setenv('WAIT_CYCLES', '$max_wait_cycles', true)