1 files changed, 96 insertions, 0 deletions
diff --git a/ACE/ace/Trace.h b/ACE/ace/Trace.h
new file mode 100644
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+++ b/ACE/ace/Trace.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Trace.h
+ *
+ *  $Id$
+ *
+ *  @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef ACE_TRACE_H
+#define ACE_TRACE_H
+
+#include /**/ "ace/pre.h"
+
+#include "ace/ACE_export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class ACE_Trace
+ *
+ * @brief A C++ trace facility that keeps track of which methods are
+ * entered and exited.
+ *
+ * This class uses C++ constructors and destructors to automate
+ * the ACE_Trace nesting.  In addition, thread-specific storage
+ * is used to enable multiple threads to work correctly.
+ */
+class ACE_Export ACE_Trace
+{
+public:
+  // = Initialization and termination methods.
+
+  /// Perform the first part of the trace, which prints out the string
+  /// N, the LINE, and the ACE_FILE as the function is entered.
+  ACE_Trace (const ACE_TCHAR *n,
+             int line = 0,
+             const ACE_TCHAR *file = ACE_LIB_TEXT (""));
+
+  /// Perform the second part of the trace, which prints out the NAME
+  /// as the function is exited.
+  ~ACE_Trace (void);
+
+  // = Control the tracing level.
+  /// Determine if tracing is enabled (return == 1) or not (== 0)
+  static int  is_tracing(void);
+
+  /// Enable the tracing facility.
+  static void start_tracing (void);
+
+  /// Disable the tracing facility.
+  static void stop_tracing (void);
+
+  /// Change the nesting indentation level.
+  static void set_nesting_indent (int indent);
+
+  /// Get the nesting indentation level.
+  static int get_nesting_indent (void);
+
+  /// Dump the state of an object.
+  void dump (void) const;
+
+private:
+  // Keeps track of how deeply the call stack is nested (this is
+  // maintained in thread-specific storage to ensure correctness in
+  // multiple threads of control.
+
+  /// Name of the method we are in.
+  const ACE_TCHAR *name_;
+
+  /// Keeps track of how far to indent per trace call.
+  static int nesting_indent_;
+
+  /// Is tracing enabled?
+  static int enable_tracing_;
+
+  /// Default values.
+  enum
+  {
+    DEFAULT_INDENT  = 3,
+    DEFAULT_TRACING = 1
+  };
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+
+#endif /* ACE_TRACE_H */