windows-recmutex: New module.

* lib/windows-recmutex.h: New file, extracted from lib/glthread/lock.h.
* lib/windows-recmutex.c: New file, extracted from lib/glthread/lock.c.
* lib/glthread/lock.h: Include windows-recmutex.h.
(gl_recursive_lock_t): Define using glwthread_recmutex_t.
(gl_recursive_lock_initializer): Define using GLWTHREAD_RECMUTEX_INIT.
(glthread_recursive_lock_init): Define using glwthread_recmutex_init.
(glthread_recursive_lock_lock): Define using glwthread_recmutex_lock.
(glthread_recursive_lock_unlock): Define using
glwthread_recmutex_unlock.
(glthread_recursive_lock_destroy): Define using
glwthread_recmutex_destroy.
(glthread_recursive_lock_init_func, glthread_recursive_lock_lock_func,
glthread_recursive_lock_unlock_func,
glthread_recursive_lock_destroy_func): Remove declarations.
* lib/glthread/lock.c (glthread_recursive_lock_init_func,
glthread_recursive_lock_lock_func, glthread_recursive_lock_unlock_func,
glthread_recursive_lock_destroy_func): Remove functions.
* modules/windows-recmutex: New file.
* modules/lock (Depends-on): Add windows-recmutex.

1 files changed, 0 insertions, 70 deletions

diff --git a/lib/glthread/lock.c b/lib/glthread/lock.c
index e17f524ca1..a686a306d6 100644
--- a/lib/glthread/lock.c
+++ b/lib/glthread/lock.c
@@ -1073,76 +1073,6 @@ glthread_rwlock_destroy_func (gl_rwlock_t *lock)
   return 0;
 }
 
-/* --------------------- gl_recursive_lock_t datatype --------------------- */
-
-void
-glthread_recursive_lock_init_func (gl_recursive_lock_t *lock)
-{
-  lock->owner = 0;
-  lock->depth = 0;
-  InitializeCriticalSection (&lock->lock);
-  lock->guard.done = 1;
-}
-
-int
-glthread_recursive_lock_lock_func (gl_recursive_lock_t *lock)
-{
-  if (!lock->guard.done)
-    {
-      if (InterlockedIncrement (&lock->guard.started) == 0)
-        /* This thread is the first one to need this lock.  Initialize it.  */
-        glthread_recursive_lock_init (lock);
-      else
-        {
-          /* Don't let lock->guard.started grow and wrap around.  */
-          InterlockedDecrement (&lock->guard.started);
-          /* Yield the CPU while waiting for another thread to finish
-             initializing this lock.  */
-          while (!lock->guard.done)
-            Sleep (0);
-        }
-    }
-  {
-    DWORD self = GetCurrentThreadId ();
-    if (lock->owner != self)
-      {
-        EnterCriticalSection (&lock->lock);
-        lock->owner = self;
-      }
-    if (++(lock->depth) == 0) /* wraparound? */
-      {
-        lock->depth--;
-        return EAGAIN;
-      }
-  }
-  return 0;
-}
-
-int
-glthread_recursive_lock_unlock_func (gl_recursive_lock_t *lock)
-{
-  if (lock->owner != GetCurrentThreadId ())
-    return EPERM;
-  if (lock->depth == 0)
-    return EINVAL;
-  if (--(lock->depth) == 0)
-    {
-      lock->owner = 0;
-      LeaveCriticalSection (&lock->lock);
-    }
-  return 0;
-}
-
-int
-glthread_recursive_lock_destroy_func (gl_recursive_lock_t *lock)
-{
-  if (lock->owner != 0)
-    return EBUSY;
-  DeleteCriticalSection (&lock->lock);
-  lock->guard.done = 0;
-  return 0;
-}
-
 #endif
 
 /* ========================================================================= */