Date: Sun, 07 Jun 1998 20:52:05 +1000 (EST) From: Simon Coggins <chaos@oz.org> To: John Birrell <jb@cimlogic.com.au>, freebsd-current@FreeBSD.ORG Subject: More problems with Threads on -current. Message-ID: <XFMail.980607205205.chaos@oz.org>
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[-- Attachment #1 --]
Got another one for you :)
Seems with threads there is something wrong with how fcntl() works, fcntl(fd,
F_SETFD, 1) doesn't work when you compile against libc_r.
I've included the program that shows this.
[simon@totally]:/tmp/thread/b> gcc -o t threads_test.c
[simon@totally]:/tmp/thread/b> ./t
Before fcntl is 0
Before fcntl is 1
[simon@totally]:/tmp/thread/b> gcc -o t threads_test.c -pthread
[simon@totally]:/tmp/thread/b> ./t
Before fcntl is 0
Before fcntl is 0
Regards
Simon
+---------------------------------------------------------------+
| Email: chaos@ultra.net.au, chaos@oz.org, simon@bofh.com.au |
| http://www.ultra.net.au/~chaos Ultranet Technical Admin. |
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+---------------------------------------------------------------+
---
As long as the answer is right, who cares if the question is wrong?
[-- Attachment #2 --]
#include <stdio.h>
#include <fcntl.h>
void main()
{
int fd;
fd=open("/dev/zero", O_RDONLY);
if(fd<3)
{
perror("open()");
exit(0);
}
printf("Before fcntl is %d\n", fcntl(fd, F_GETFD, 0));
fcntl(fd, F_SETFD, 1);
printf("Before fcntl is %d\n", fcntl(fd, F_GETFD, 0));
close(fd);
}
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