On 05/04/2019 01:17, Chris Johns wrote:
On 5/4/19 4:53 am, Matthew J Fletcher wrote:
Hi Sebastian
I used rtems_task_wake_after().
On Thu, 4 Apr 2019, 18:22 Sebastian Huber, <sebastian.hu...@embedded-brains.de
<mailto:sebastian.hu...@embedded-brains.de>> wrote:
How do you wait. Is this a busy wait?
----- Matthew J Fletcher <ami...@gmail.com <mailto:ami...@gmail.com>>
schrieb:
> replying to myself.
>
> With a 1 second pause between socket() and close() and 512 sockets it
will
> still ENOBUFS,.. without calculating it properly thats easily 10 minutes
> since the first socket was allocated,. that must be enough time to start
> freeing the socket buffers internally.
>
>
> On Thu, 4 Apr 2019 at 16:47, Matthew J Fletcher <ami...@gmail.com
<mailto:ami...@gmail.com>> wrote:
>
> > Hi,
> >
> > I have noticed an issue with lib-bsd that the legacy stack does not
have.
> >
> > If have a loop that does
> >
> > for (;;)
> > {
> > wait(100) // milliseconds
> > socket() // allocate
> > close() // free
> > }
Are you able to make a small stand alone test?
Yes, a self contained test case would be helpful. I cannot reproduce the
issue with the modified test case in attached patch for libbsd.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>From dcefc9d70b689bb62b5ba729439867dc2083d902 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.hu...@embedded-brains.de>
Date: Fri, 5 Apr 2019 08:57:28 +0200
Subject: [PATCH] syscalls01: Add infinite socket()/close() test
---
testsuite/syscalls01/test_main.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/testsuite/syscalls01/test_main.c b/testsuite/syscalls01/test_main.c
index 6943cd1a4..fc654b478 100644
--- a/testsuite/syscalls01/test_main.c
+++ b/testsuite/syscalls01/test_main.c
@@ -343,6 +343,22 @@ test_sockets(void)
puts("test sockets");
+ int c = 0;
+ while (true) {
+ int s = socket(PF_INET, SOCK_STREAM, 0);
+ assert(s >= 0);
+
+ int rv = close(s);
+ assert(rv == 0);
+
+ rtems_task_wake_after(1);
+
+ ++c;
+ if (c % 1000 == 0) {
+ printf("%i\n", c);
+ }
+ }
+
for (i = 0; i < n; ++i) {
const socket_test *st = &socket_tests[i];
@@ -1647,4 +1663,6 @@ test_main(void)
exit(0);
}
+#define CONFIGURE_MICROSECONDS_PER_TICK 1000
+
#include <rtems/bsd/test/default-init.h>
--
2.16.4
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