/*
* pthread_num_processors_np()
*
* Get the number of CPUs available to the process.
*/
int
pthread_num_processors_np (void)
{
int count;
if (ptw32_getprocessors (&count) != 0)
{
count = 1;
}
return (count);
}
/*
* pthread_num_processors_np()
*
* Get the number of CPUs available to the process.
*/
int
pthread_num_processors_np (void)
{
int count;
#if defined(_XBOX)
count = 6;
#else
if (ptw32_getprocessors (&count) != 0)
{
count = 1;
}
#endif
return (count);
}
int
pthread_spin_init (pthread_spinlock_t * lock, int pshared)
{
pthread_spinlock_t s;
int cpus = 0;
int result = 0;
if (lock == NULL)
{
return EINVAL;
}
if (0 != ptw32_getprocessors (&cpus))
{
cpus = 1;
}
if (cpus > 1)
{
if (pshared == PTHREAD_PROCESS_SHARED)
{
/*
* Creating spinlock that can be shared between
* processes.
*/
#if _POSIX_THREAD_PROCESS_SHARED >= 0
/*
* Not implemented yet.
*/
#error ERROR [__FILE__, line __LINE__]: Process shared spin locks are not supported yet.
#else
return ENOSYS;
#endif /* _POSIX_THREAD_PROCESS_SHARED */
}
}
s = (pthread_spinlock_t) calloc (1, sizeof (*s));
if (s == NULL)
{
return ENOMEM;
}
if (cpus > 1)
{
s->u.cpus = cpus;
s->interlock = PTW32_SPIN_UNLOCKED;
}
else
{
pthread_mutexattr_t ma;
result = pthread_mutexattr_init (&ma);
if (0 == result)
{
ma->pshared = pshared;
result = pthread_mutex_init (&(s->u.mutex), &ma);
if (0 == result)
{
s->interlock = PTW32_SPIN_USE_MUTEX;
}
}
(void) pthread_mutexattr_destroy (&ma);
}
if (0 == result)
{
*lock = s;
}
else
{
(void) free (s);
*lock = NULL;
}
return (result);
}
