blob: 833b14ae62dcd00c4a7e7a41792d8e169ad72446 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cgotest
/*
#include <unistd.h>
unsigned int sleep(unsigned int seconds);
extern void BackgroundSleep(int);
void twoSleep(int n) {
BackgroundSleep(n);
sleep(n);
}
*/
import "C"
import (
"testing"
"time"
)
var sleepDone = make(chan bool)
func parallelSleep(n int) {
C.twoSleep(C.int(n))
<-sleepDone
}
//export BackgroundSleep
func BackgroundSleep(n int) {
go func() {
C.sleep(C.uint(n))
sleepDone <- true
}()
}
func testParallelSleep(t *testing.T) {
start := time.Now()
parallelSleep(1)
dt := time.Now().Sub(start)
// bug used to run sleeps in serial, producing a 2-second delay.
if dt >= 1300*time.Millisecond {
t.Fatalf("parallel 1-second sleeps slept for %f seconds", dt.Seconds())
}
}
|
