pthread's mutex question

[Pattara Kiatisevi]

Hi again,

I have played with pthread's mutex with this small code:

  pthread_mutex_t a,b;

  printf("Initialize mutexes...\n");
  pthread_mutex_init(&a, NULL);
  pthread_mutex_init(&b, NULL);

  printf("Trying to lock mutex a..\n");
  pthread_mutex_lock(&a);
  printf("Got mutex a..\n");

  printf("Trying to lock mutex a..\n");
  pthread_mutex_lock(&a);	<----------should block here
  printf("Got mutex a..\n");



  fprintf(stderr,"Done.\n");


On Linux, the program will block forever at the second attempt to lock
mutex a but on RTEMS it doesn't block. Instead it returns with value 45.
Is there any chance to have it blocked here in RTEMS?

Regards,
Pattara


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Ott Pattara Kiatisevi 				   T L W G
M.Sc. INFOTECH Student, Stuttgart, Germany	http://linux.thai.net/
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