dd931d9b48
Reviewed-on: https://go-review.googlesource.com/136435 gotools/: * Makefile.am (mostlyclean-local): Run chmod on check-go-dir to make sure it is writable. (check-go-tools): Likewise. (check-vet): Copy internal/objabi to check-vet-dir. * Makefile.in: Rebuild. From-SVN: r264546
52 lines
1.0 KiB
C
52 lines
1.0 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.
|
|
|
|
// +build !windows
|
|
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
extern void IntoGoAndBack();
|
|
|
|
int CheckBlocked() {
|
|
sigset_t mask;
|
|
sigprocmask(SIG_BLOCK, NULL, &mask);
|
|
return sigismember(&mask, SIGIO);
|
|
}
|
|
|
|
static void* sigthreadfunc(void* unused) {
|
|
sigset_t mask;
|
|
sigemptyset(&mask);
|
|
sigaddset(&mask, SIGIO);
|
|
sigprocmask(SIG_BLOCK, &mask, NULL);
|
|
IntoGoAndBack();
|
|
return NULL;
|
|
}
|
|
|
|
int RunSigThread() {
|
|
int tries;
|
|
pthread_t thread;
|
|
int r;
|
|
struct timespec ts;
|
|
|
|
for (tries = 0; tries < 20; tries++) {
|
|
r = pthread_create(&thread, NULL, &sigthreadfunc, NULL);
|
|
if (r == 0) {
|
|
return pthread_join(thread, NULL);
|
|
}
|
|
if (r != EAGAIN) {
|
|
return r;
|
|
}
|
|
ts.tv_sec = 0;
|
|
ts.tv_nsec = (tries + 1) * 1000 * 1000; // Milliseconds.
|
|
nanosleep(&ts, NULL);
|
|
}
|
|
return EAGAIN;
|
|
}
|