1 files changed, 77 insertions, 0 deletions
diff --git a/src/xine-engine/refcounter.c b/src/xine-engine/refcounter.c
new file mode 100644
index 000000000..11c6ceb11
--- /dev/null
+++ b/src/xine-engine/refcounter.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2000-2004 the xine project
+ * 
+ * This file is part of xine, a free video player.
+ * 
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * xine is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * $Id: refcounter.c,v 1.1 2004/10/14 23:25:24 tmattern Exp $
+ *
+ */
+#define LOG_MODULE "refcounter"
+#define LOG_VERBOSE
+/*
+#define LOG
+*/
+ 
+#include "refcounter.h"
+#include "xine_internal.h"
+
+refcounter_t* _x_new_refcounter(void *object, void (*destructor)(void *))
+{
+  refcounter_t *new_refcounter;
+
+  new_refcounter = (refcounter_t *) xine_xmalloc (sizeof (refcounter_t));
+  new_refcounter->count      = 1;
+  new_refcounter->object     = object;
+  new_refcounter->destructor = destructor;
+  pthread_mutex_init (&new_refcounter->lock, NULL);
+  lprintf("new referenced object %p\n", object);
+  return new_refcounter;
+}
+
+int _x_refcounter_inc(refcounter_t *refcounter)
+{
+  int res;
+
+  pthread_mutex_lock(&refcounter->lock);
+  if (!refcounter->count)
+    _x_abort();
+  res = ++refcounter->count;
+  pthread_mutex_unlock(&refcounter->lock);
+	
+  return res;
+}
+
+int _x_refcounter_dec(refcounter_t *refcounter)
+{
+  int res;
+
+  pthread_mutex_lock(&refcounter->lock);
+  res = --refcounter->count;
+  pthread_mutex_unlock(&refcounter->lock);
+  if (!res) {
+    lprintf("calling destructor of object %p\n", refcounter->object);
+    refcounter->destructor(refcounter->object);
+  }
+  
+  return res;
+}
+
+void _x_refcounter_dispose(refcounter_t *refcounter)
+{
+  pthread_mutex_destroy (&refcounter->lock);
+  free(refcounter);
+}