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// Copyright 2013 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.
// +build !windows
package cgotest
/*
#include <signal.h>
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
static void *thread(void *p) {
(void)p;
const int M = 100;
int i;
for (i = 0; i < M; i++) {
pthread_kill(pthread_self(), SIGCHLD);
usleep(rand() % 20 + 5);
}
return NULL;
}
void testSendSIG() {
const int N = 20;
int i;
pthread_t tid[N];
for (i = 0; i < N; i++) {
usleep(rand() % 200 + 100);
pthread_create(&tid[i], 0, thread, NULL);
}
for (i = 0; i < N; i++)
pthread_join(tid[i], 0);
}
*/
import "C"
import (
"os"
"os/signal"
"syscall"
"testing"
"time"
)
func test3250(t *testing.T) {
t.Skip("skipped, see golang.org/issue/5885")
const (
thres = 1
sig = syscall.SIGCHLD
)
type result struct {
n int
sig os.Signal
}
var (
sigCh = make(chan os.Signal, 10)
waitStart = make(chan struct{})
waitDone = make(chan result)
)
signal.Notify(sigCh, sig)
go func() {
n := 0
alarm := time.After(time.Second * 3)
for {
select {
case <-waitStart:
waitStart = nil
case v := <-sigCh:
n++
if v != sig || n > thres {
waitDone <- result{n, v}
return
}
case <-alarm:
waitDone <- result{n, sig}
return
}
}
}()
waitStart <- struct{}{}
C.testSendSIG()
r := <-waitDone
if r.sig != sig {
t.Fatalf("received signal %v, but want %v", r.sig, sig)
}
t.Logf("got %d signals\n", r.n)
if r.n <= thres {
t.Fatalf("expected more than %d", thres)
}
}
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