mirror of
https://github.com/golang/go
synced 2024-11-23 20:30:04 -07:00
c61a55d831
Try to avoid a race condition in the test. Passed 500 times on my laptop. Fixes #14956. Change-Id: I5de2e1e3623832f0ab4f180149f7c57ce7cd23c0 Reviewed-on: https://go-review.googlesource.com/21171 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
// Copyright 2015 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.
|
|
|
|
// Test for verifying that the Go runtime properly forwards
|
|
// signals when non-Go signals are raised.
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/select.h>
|
|
|
|
#include "libgo2.h"
|
|
|
|
int main(int argc, char** argv) {
|
|
int verbose;
|
|
int test;
|
|
|
|
if (argc < 2) {
|
|
printf("Missing argument\n");
|
|
return 1;
|
|
}
|
|
|
|
test = atoi(argv[1]);
|
|
|
|
verbose = (argc > 2);
|
|
|
|
if (verbose) {
|
|
printf("calling RunGoroutines\n");
|
|
}
|
|
|
|
Noop();
|
|
|
|
switch (test) {
|
|
case 1: {
|
|
if (verbose) {
|
|
printf("attempting segfault\n");
|
|
}
|
|
|
|
volatile int crash = *(int *) 0;
|
|
break;
|
|
}
|
|
|
|
case 2: {
|
|
struct timeval tv;
|
|
|
|
if (verbose) {
|
|
printf("attempting external signal test\n");
|
|
}
|
|
|
|
fprintf(stderr, "OK\n");
|
|
fflush(stderr);
|
|
|
|
// The program should be interrupted before
|
|
// this sleep finishes. We use select rather
|
|
// than sleep because in older versions of
|
|
// glibc the sleep function does some signal
|
|
// fiddling to handle SIGCHLD. If this
|
|
// program is fiddling signals just when the
|
|
// test program sends the signal, the signal
|
|
// may be delivered to a Go thread which will
|
|
// break this test.
|
|
tv.tv_sec = 60;
|
|
tv.tv_usec = 0;
|
|
select(0, NULL, NULL, NULL, &tv);
|
|
|
|
break;
|
|
}
|
|
default:
|
|
printf("Unknown test: %d\n", test);
|
|
return 0;
|
|
}
|
|
|
|
printf("FAIL\n");
|
|
return 0;
|
|
}
|