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misc/cgo/test: add retry loop around pthread_create in TestSigprocmask

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This is the same retry loop we use in _cgo_try_pthread_create in runtime/cgo.

Fixes #25078

Change-Id: I7ef4d4fc7fb89cbfb674c4f93cbdd7a033dd8983
Reviewed-on: https://go-review.googlesource.com/121096
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Ian Lance Taylor 2018-06-26 17:23:07 -07:00
parent fbfd38c575
commit f03ee913e2
1 changed files with 17 additions and 4 deletions
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21
misc/cgo/test/sigprocmask.c
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@ -4,10 +4,12 @@
// +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();
@ -28,11 +30,22 @@ static void* sigthreadfunc(void* unused) {
}
int RunSigThread() {
int tries;
pthread_t thread;
int r;
struct timespec ts;
r = pthread_create(&thread, NULL, &sigthreadfunc, NULL);
if (r != 0)
return r;
return pthread_join(thread, NULL);
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;
}