summaryrefslogtreecommitdiff
path: root/ACE/ace/Static_Object_Lock.h
diff options
context:
space:
mode:
Diffstat (limited to 'ACE/ace/Static_Object_Lock.h')
-rw-r--r--ACE/ace/Static_Object_Lock.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/ACE/ace/Static_Object_Lock.h b/ACE/ace/Static_Object_Lock.h
new file mode 100644
index 00000000000..5a765a24fbd
--- /dev/null
+++ b/ACE/ace/Static_Object_Lock.h
@@ -0,0 +1,78 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ * @file Static_Object_Lock.h
+ *
+ * $Id$
+ *
+ * @author David L. Levine <levine@cs.wustl.edu>
+ * @author Matthias Kerkhoff
+ * @author Per Andersson
+ */
+//=============================================================================
+
+#ifndef ACE_STATIC_OBJECT_LOCK_H
+#define ACE_STATIC_OBJECT_LOCK_H
+#include /**/ "ace/pre.h"
+
+#include "ace/ACE_export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#if defined (ACE_HAS_THREADS)
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+class ACE_Recursive_Thread_Mutex;
+
+/**
+ * @class ACE_Static_Object_Lock
+ *
+ * @brief Provide an interface to access a global lock.
+ *
+ * This class is used to serialize the creation of static
+ * singleton objects. It really isn't needed any more, because
+ * anyone can access ACE_STATIC_OBJECT_LOCK directly. But, it
+ * is retained for backward compatibility.
+ */
+class ACE_Export ACE_Static_Object_Lock
+{
+public:
+ /// Static lock access point.
+ static ACE_Recursive_Thread_Mutex *instance (void);
+
+ /// For use only by ACE_Object_Manager to clean up lock if it
+ /// what dynamically allocated.
+ static void cleanup_lock (void);
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#endif /* ACE_HAS_THREADS */
+
+// hack to get around errors while compiling using split-cpp
+#if defined (ACE_HAS_THREADS)
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+# if defined (ACE_IS_SPLITTING)
+typedef ACE_Cleanup_Adapter<ACE_Recursive_Thread_Mutex> ACE_Static_Object_Lock_Type;
+
+# if defined (__GNUC__)
+// With g++, suppress the warning that this is unused.
+static ACE_Static_Object_Lock_Type *ACE_Static_Object_Lock_lock __attribute__ ((unused)) = 0;
+# else
+static ACE_Static_Object_Lock_Type *ACE_Static_Object_Lock_lock = 0;
+# endif /* __GNUC__ */
+
+# endif /* ACE_IS_SPLITTING */
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#endif /* ACE_HAS_THREADS */
+
+#include /**/ "ace/post.h"
+#endif /* ACE_STATIC_OBJECT_LOCK_H */