To set a pthread_cond_timedwait() ?

[Matteo]

Hi 
following the psx example I try to use the  pthread_cond_timedwait() but it 
returns me an error, but I think to have set all I have to set, may be I 
forget to define some condition ?
Here there is my little example, it compiles but when it works I have an error 
on the condition timed. 

#include <bsp.h>
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <sched.h>
  pthread_mutex_t mutex;
  pthread_cond_t cond;
void * print_hello(void * arg)
  {
  struct timeval time;
  struct timespec timeout;
  gettimeofday(&time, NULL);
  timeout.tv_sec = time.tv_sec + 2;
  timeout.tv_nsec = time.tv_usec * 1000;
  printf("<child>: Hello World coming to wait!\n");

  if (pthread_cond_timedwait(&cond, &mutex, &timeout)) perror ("Error on 
TIMEDWAIT");

  printf("<child>: Hello World exit to wait!\n");
  return NULL;
  }
int *POSIX_Init()
  {
  pthread_t child;
  if ( pthread_create( &child, NULL, print_hello, NULL )) perror("Errore sulla 
create");
  printf("<main>: Wait for child thread...\n");
  if ( pthread_join( child, NULL )) perror ("Errore sulla join");
  return 0;
  }
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS              10
#define CONFIGURE_MAXIMUM_POSIX_CONDITION_VARIABLES  10
#define CONFIGURE_MAXIMUM_POSIX_MUTEXES              10
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>

Thanks

Matteo