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If pthread_create() fails with EAGAIN, try a few more times with short 

sleeps in between.  If it helps, good.  If it doesn't, oh well, at
least we tried.  pthread_create() returning EAGAIN has been observed in
real life at least on Linux (buildrump.sh issue #40)
This commit is contained in:
pooka 2013-09-23 10:35:20 +00:00
parent 178419f12e
commit 4be69cd08b
1 changed files with 12 additions and 4 deletions
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16
lib/librumpuser/rumpuser_pth.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: rumpuser_pth.c,v 1.30 2013/05/15 14:52:49 pooka Exp $ */
/* $NetBSD: rumpuser_pth.c,v 1.31 2013/09/23 10:35:20 pooka Exp $ */
/*
* Copyright (c) 2007-2010 Antti Kantee. All Rights Reserved.
@ -28,7 +28,7 @@
#include "rumpuser_port.h"
#if !defined(lint)
__RCSID("$NetBSD: rumpuser_pth.c,v 1.30 2013/05/15 14:52:49 pooka Exp $");
__RCSID("$NetBSD: rumpuser_pth.c,v 1.31 2013/09/23 10:35:20 pooka Exp $");
#endif /* !lint */
#include <sys/queue.h>
@ -54,7 +54,7 @@ rumpuser_thread_create(void *(*f)(void *), void *arg, const char *thrname,
pthread_t ptid;
pthread_t *ptidp;
pthread_attr_t pattr;
int rv;
int rv, i;
if ((rv = pthread_attr_init(&pattr)) != 0)
return rv;
@ -67,7 +67,15 @@ rumpuser_thread_create(void *(*f)(void *), void *arg, const char *thrname,
pthread_attr_setdetachstate(&pattr, PTHREAD_CREATE_DETACHED);
}
rv = pthread_create(ptidp, &pattr, f, arg);
for (i = 0; i < 10; i++) {
const struct timespec ts = {0, 10*1000*1000};
rv = pthread_create(ptidp, &pattr, f, arg);
if (rv != EAGAIN)
break;
nanosleep(&ts, NULL);
}
#if defined(__NetBSD__)
if (rv == 0 && thrname)
pthread_setname_np(ptid, thrname, NULL);