re-indentation, bug fixes, hooks for pre-emptive async cancelation

1 files changed, 19 insertions, 12 deletions

diff --git a/pthread_spin_trylock.c b/pthread_spin_trylock.c
index c54fe53..040a2b0 100644
--- a/pthread_spin_trylock.c
+++ b/pthread_spin_trylock.c
@@ -39,34 +39,41 @@
 
 
 int
-pthread_spin_trylock(pthread_spinlock_t *lock)
+pthread_spin_trylock (pthread_spinlock_t * lock)
 {
   register pthread_spinlock_t s;
 
   if (NULL == lock || NULL == *lock)
     {
-      return(EINVAL);
+      return (EINVAL);
     }
 
   if (*lock == PTHREAD_SPINLOCK_INITIALIZER)
     {
       int result;
 
-      if ((result = ptw32_spinlock_check_need_init(lock)) != 0)
-        {
-          return(result);
-        }
+      if ((result = ptw32_spinlock_check_need_init (lock)) != 0)
+	{
+	  return (result);
+	}
     }
 
   s = *lock;
 
-  switch ((long) ptw32_interlocked_compare_exchange((PTW32_INTERLOCKED_LPLONG) &(s->interlock),
-                                                    (PTW32_INTERLOCKED_LONG) PTW32_SPIN_LOCKED,
-                                                    (PTW32_INTERLOCKED_LONG) PTW32_SPIN_UNLOCKED ))
+  switch ((long)
+	  ptw32_interlocked_compare_exchange ((PTW32_INTERLOCKED_LPLONG) &
+					      (s->interlock),
+					      (PTW32_INTERLOCKED_LONG)
+					      PTW32_SPIN_LOCKED,
+					      (PTW32_INTERLOCKED_LONG)
+					      PTW32_SPIN_UNLOCKED))
     {
-      case PTW32_SPIN_UNLOCKED:  return 0;
-      case PTW32_SPIN_LOCKED:    return EBUSY;
-      case PTW32_SPIN_USE_MUTEX: return pthread_mutex_trylock(&(s->u.mutex));
+    case PTW32_SPIN_UNLOCKED:
+      return 0;
+    case PTW32_SPIN_LOCKED:
+      return EBUSY;
+    case PTW32_SPIN_USE_MUTEX:
+      return pthread_mutex_trylock (&(s->u.mutex));
     }
 
   return EINVAL;