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#ifdef MACH_C_THREADS

#include <mach/cthreads.h>

#endif

#ifdef HURD_C_THREADS

#include <cthreads.h>

#endif

/*

* Initialization.

*/

static void

PyThread__init_thread(void)

{

#ifndef HURD_C_THREADS

/* Roland McGrath said this should not be used since this is

done while linking to threads */

cthread_init();

#else

/* do nothing */

;

#endif

}

/*

* Thread support.

*/

long

PyThread_start_new_thread(void (*func)(void *), void *arg)

{

int success = 0; /* init not needed when SOLARIS_THREADS and */

/* C_THREADS implemented properly */

dprintf(("PyThread_start_new_thread called\n"));

if (!initialized)

PyThread_init_thread();

/* looks like solaris detaches the thread to never rejoin

* so well do it here

*/

cthread_detach(cthread_fork((cthread_fn_t) func, arg));

return success < 0 ? -1 : 0;

}

long

PyThread_get_thread_ident(void)

{

if (!initialized)

PyThread_init_thread();

return (long) cthread_self();

}

void

PyThread_exit_thread(void)

{

dprintf(("PyThread_exit_thread called\n"));

if (!initialized)

exit(0);

cthread_exit(0);

}

/*

* Lock support.

*/

PyThread_type_lock

PyThread_allocate_lock(void)

{

mutex_t lock;

dprintf(("PyThread_allocate_lock called\n"));

if (!initialized)

PyThread_init_thread();

lock = mutex_alloc();

if (mutex_init(lock)) {

perror("mutex_init");

free((void *) lock);

lock = 0;

}

dprintf(("PyThread_allocate_lock() -> %p\n", lock));

return (PyThread_type_lock) lock;

}

void

PyThread_free_lock(PyThread_type_lock lock)

{

dprintf(("PyThread_free_lock(%p) called\n", lock));

mutex_free(lock);

}

int

PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)

{

int success = FALSE;

dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));

if (waitflag) { /* blocking */

mutex_lock((mutex_t)lock);

success = TRUE;

} else { /* non blocking */

success = mutex_try_lock((mutex_t)lock);

}

dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));

return success;

}

void

PyThread_release_lock(PyThread_type_lock lock)

{

dprintf(("PyThread_release_lock(%p) called\n", lock));

mutex_unlock((mutex_t )lock);

}