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pthread_cond_timedwait not reporting error on bad arg.
- From: "Ivan Mari" <ivanmari at gmx dot net>
- To: cygwin at cygwin dot com
- Date: Tue, 9 May 2006 20:51:45 +0200 (MEST)
- Subject: pthread_cond_timedwait not reporting error on bad arg.
In the code below, the timespec argument to pthread_cond_timedwait() is set
to an invalid value: t_nsec > 999,999,999 so, EINVAL error code should be
returned.
Regards,
Ivan Mari
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/time.h>
#include <errno.h>
void* start_routine( void* arg );
pthread_cond_t m_cond = PTHREAD_COND_INITIALIZER;
pthread_mutex_t m_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
int main()
{
struct timespec t;
t.tv_nsec = 1000000000; /* This value should be in the range 0 < tv_nsec <
999999999 */
t.tv_sec = 1145259964;
pthread_mutex_lock( &m_lock );
printf("Entering cond wait \n");
int rv = pthread_cond_timedwait( &m_cond, &m_lock, &t );
if( rv )
{
switch( rv )
{
case ETIMEDOUT:
printf("Error timeout before receiving signal\n");
break;
case EINVAL:
printf("Error invalid abstime or mutex or cond\n");
break;
case EPERM:
printf("Error thread doesn't own mutex\n");
break;
}
}
printf("pthread_cond_wait returned %d\n",rv);
pthread_mutex_unlock( &m_lock );
return 0;
}
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