undoing accidental deletion

1 files changed, 65 insertions, 0 deletions

diff --git a/ACE/ace/Thread_Hook.h b/ACE/ace/Thread_Hook.h
new file mode 100644
index 00000000000..e7638daa941
--- /dev/null
+++ b/ACE/ace/Thread_Hook.h
@@ -0,0 +1,65 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Thread_Hook.h
+ *
+ *  $Id$
+ *
+ *  @author Carlos O'Ryan <coryan@uci.edu>
+ */
+//=============================================================================
+
+
+#ifndef ACE_THREAD_HOOK_H
+#define ACE_THREAD_HOOK_H
+#include /**/ "ace/pre.h"
+
+#include /**/ "ace/config-all.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include /**/ "ace/ACE_export.h"
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class ACE_Thread_Hook
+ *
+ * @brief This class makes it possible to provide user-defined "start"
+ * hooks that are called before the thread entry point function
+ * is invoked.
+ */
+class ACE_Export ACE_Thread_Hook
+{
+
+public:
+
+  /// Destructor.
+  virtual ~ACE_Thread_Hook (void);
+
+  /**
+   * This method can be overridden in a subclass to customize this
+   * pre-function call "hook" invocation that can perform
+   * initialization processing before the thread entry point @a func
+   * method is called back.  The @a func and @a arg passed into the
+   * start hook are the same as those passed by the application that
+   * spawned the thread.
+   */
+  virtual ACE_THR_FUNC_RETURN start (ACE_THR_FUNC func,
+                                     void *arg);
+
+  /// sets the system wide thread hook, returns the previous thread
+  /// hook or 0 if none is set.
+  static ACE_Thread_Hook *thread_hook (ACE_Thread_Hook *hook);
+
+  /// Returns the current system thread hook.
+  static ACE_Thread_Hook *thread_hook (void);
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+#endif /* ACE_THREAD_HOOK_H */