Added new routines from POSIX 1003.1j. This is alpha level code.

        * spin.c: New module implementing spin locks.
        * barrier.c: New module implementing barriers.
        * pthread.h (_POSIX_SPIN_LOCKS): defined.
        (_POSIX_BARRIERS): Defined.
        (pthread_spin_*): Defined.
        (pthread_barrier*): Defined.
        (PTHREAD_BARRIER_SERIAL_THREAD): Defined.
        * implement.h (pthread_spinlock_t_): Defined.
        (pthread_barrier_t_): Defined.
        (pthread_barrierattr_t_): Defined.

        * mutex.c (pthread_mutex_lock): Return with the error
        if an auto-initialiser initialisation fails.

        * nonportable.c (pthread_getprocessors_np): New; gets the
        number of available processors for the current process.

1 files changed, 4 insertions, 1 deletions

diff --git a/mutex.c b/mutex.c
index 0396e5f..22a7e7b 100644
--- a/mutex.c
+++ b/mutex.c
@@ -632,7 +632,10 @@ pthread_mutex_lock(pthread_mutex_t *mutex)
    */
   if (*mutex == (pthread_mutex_t) PTW32_OBJECT_AUTO_INIT)
     {
-      result = ptw32_mutex_check_need_init(mutex);
+      if ((result = ptw32_mutex_check_need_init(mutex)) != 0)
+        {
+          return(result);
+        }
     }
 
   mx = *mutex;