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1 files changed, 73 insertions, 0 deletions

diff --git a/ace/System_Time.h b/ace/System_Time.h
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+++ b/ace/System_Time.h
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+/* -*- C++ -*- */
+// $Id$
+
+
+// ============================================================================
+//
+// = LIBRARY
+//    ace
+// 
+// = FILENAME
+//    System_Time.h
+//
+// = AUTHOR
+//    Prashant Jain, Tim H. Harrison and Douglas C. Schmidt    
+//
+// ============================================================================
+
+#if !defined (ACE_SYSTEM_TIME_H)
+#define ACE_SYSTEM_TIME_H
+
+#include "ace/OS.h"
+#include "ace/Malloc.h"
+
+class ACE_Export ACE_Date_Time
+  // TITLE
+  //    This class holds internally date and time and has interfaces
+  //    for getting month or compares of times and dates, etc.
+{
+public:
+};
+
+class ACE_Export ACE_System_Time
+  // = TITLE
+  //     Defines the timer services of the OS interface to access the
+  //     system time either on the local host or on the central time
+  //     server in the network.
+{
+public:
+  enum Sync_Mode { Jump, Adjust };
+  // enumeration types to specify mode of synchronization with master
+  // clock.  Jump will set local system time directly (thus possibly
+  // producing time gaps or ambiguous local system times.  Adjust will
+  // smoothly slow down or speed up the local system clock to reach
+  // the system time of the master clock.
+
+  ACE_System_Time (const char *poolname = ACE_DEFAULT_BACKING_STORE);
+  // Default constructor.
+
+  ~ACE_System_Time (void);
+  // Default destructor.
+
+  int get_local_system_time (ACE_UINT32 &time_out);
+  // Get the local system time.
+
+  int get_master_system_time (ACE_UINT32 &time_out);
+  // Get the system time of the central time server.
+
+  int sync_local_system_time (ACE_System_Time::Sync_Mode mode);
+  // synchronize local system time with the central time server using
+  // specified mode.
+
+private:
+  typedef ACE_Malloc <ACE_MMAP_Memory_Pool, ACE_Null_Mutex> MALLOC;
+  typedef ACE_Allocator_Adapter<MALLOC> ALLOCATOR;
+
+  ALLOCATOR *shmem_;
+  // Our allocator (used for obtaining system time from shared memory).
+
+  long *delta_time_;
+  // Pointer to delta time kept in shared memory.
+};
+
+#endif /* ACE_SYSTEM_TIME_H */