+/*****************************************************************************\
+* *
+* Name : safe_roller *
+* Author : Chris Koeritz *
+* *
+*******************************************************************************
+* Copyright (c) 1998-$now By Author. This program 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. This is online at: *
+* http://www.fsf.org/copyleft/gpl.html *
+* Please send any updates to: fred@gruntose.com *
+\*****************************************************************************/
+
+#include "safe_roller.h"
+
+#include <basis/functions.h>
+#include <basis/mutex.h>
+#include <structures/roller.h>
+#include <structures/static_memory_gremlin.h>
+
+using namespace basis;
+using namespace structures;
+
+namespace processes {
+
+SAFE_STATIC(mutex, __roller_synch, )
+
+void safe_add(int &to_change, int addition)
+{
+ auto_synchronizer l(__roller_synch());
+ to_change += addition;
+}
+
+//////////////
+
+safe_roller::safe_roller(int start_of_range, int end_of_range)
+: _rolling(new int_roller(start_of_range, end_of_range)),
+ _lock(new mutex)
+{
+}
+
+safe_roller::~safe_roller()
+{
+ WHACK(_rolling);
+ WHACK(_lock);
+}
+
+int safe_roller::next_id()
+{
+ _lock->lock();
+ int to_return = _rolling->next_id();
+ _lock->unlock();
+ return to_return;
+}
+
+int safe_roller::current() const
+{
+ _lock->lock();
+ int to_return = _rolling->current();
+ _lock->unlock();
+ return to_return;
+}
+
+void safe_roller::set_current(int new_current)
+{
+ _lock->lock();
+ _rolling->set_current(new_current);
+ _lock->unlock();
+}
+
+} //namespace.
+
+