Arash Partow wrote:
> I've got a problem with pthread mutexes and cygwin. When I try to initialise
> a mutex
> attribute variable, the related pthread call never returns a 0 (zero) value.
>
> ie:
>
> int result = 0;
> pthread_mutexattr_t mutex_attr;
>
> if ((result = pthread_mutexattr_init(&mutex_attr)) != 0)
> {
> printf("Error - Description: %s\n",stderror(result));
> exit(EXIT_FAILURE);
> }
>
> I'm using the latest snapshot as of 24th Sept, and also got the latest
> gcc, I'm running on windows 2000 with sp4, I've also tried on win xp
> with sp2 same cygwin install etc, yet the same problem occurs.
>
> Same code compiles ok on NetBSD 1.62 and Mandrake 10.1 and gives
> a non erroneous return code.
It must be something your code is doing wrong -- something not in the
above snippet. I think you'll find that if you can narrow it down to a
simple testcase that compiles and exhibits the error it will be much
easier to find out what's wrong. Your above code works fine for me:
$ cat >pthread_mutexattr.c <<EOF && \
gcc -o pthread_mutexattr.exe pthread_mutexattr.c && \
./pthread_mutexattr
#include <pthread.h>
#include <stdlib.h>
int main() {
int result;
pthread_mutexattr_t mutex_attr;
if ((result = pthread_mutexattr_init(&mutex_attr)) != 0)
perror("pthread_mutexattr_init");
else
printf("success");
}
EOF
success
Brian
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