To set a pthread_cond_timedwait() ?

[Joel Sherrill]

Matteo wrote:

>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. 
>
>  
>
You do not have a call to pthread_cond_init or pthread_mutex_init.

See class-examples/pthread_cond_server.

--joel

>#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
>
>
>  
>