undoing accidental deletion

1 files changed, 99 insertions, 0 deletions

diff --git a/ACE/ace/System_Time.h b/ACE/ace/System_Time.h
new file mode 100644
index 00000000000..e40b21299f5
--- /dev/null
+++ b/ACE/ace/System_Time.h
@@ -0,0 +1,99 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    System_Time.h
+ *
+ *  $Id$
+ *
+ *  @author Prashant Jain
+ *  @author Tim H. Harrison
+ *  @author Douglas C. Schmidt
+ */
+//=============================================================================
+
+#ifndef ACE_SYSTEM_TIME_H
+#define ACE_SYSTEM_TIME_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/Global_Macros.h"
+#include "ace/os_include/os_time.h"  /* For time_t. */
+#include "ace/os_include/os_limits.h"  /* For MAXPATHLEN. */
+#include "ace/MMAP_Memory_Pool.h"
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+template<ACE_MEM_POOL_1, class ACE_LOCK> class ACE_Malloc;
+template<class MALLOC> class ACE_Allocator_Adapter;
+
+class ACE_Null_Mutex;
+class ACE_Time_Value;
+class ACE_MMAP_Memory_Pool;
+
+/**
+ * @class ACE_System_Time
+ *
+ * @brief 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.
+ */
+class ACE_Export ACE_System_Time
+{
+public:
+  /**
+   * 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.
+   */
+  enum Sync_Mode { Jump, Adjust };
+
+  /// Default constructor.
+  ACE_System_Time (const ACE_TCHAR *poolname = 0);
+
+  /// Default destructor.
+  ~ACE_System_Time (void);
+
+  /// Get the local system time, i.e., the value returned by
+  /// ACE_OS::time().
+  static int get_local_system_time (time_t & time_out);
+
+  /// Get the local system time, i.e., the value returned by
+  /// ACE_OS::time().
+  static int get_local_system_time (ACE_Time_Value &time_out);
+
+  /// Get the system time of the central time server.
+  int get_master_system_time (time_t & time_out);
+
+  /// Get the system time of the central time server.
+  int get_master_system_time (ACE_Time_Value &time_out);
+
+  /// Synchronize local system time with the central time server using
+  /// specified mode.
+  int sync_local_system_time (ACE_System_Time::Sync_Mode mode);
+
+private:
+  typedef ACE_Malloc<ACE_MMAP_MEMORY_POOL, ACE_Null_Mutex> MALLOC;
+  typedef ACE_Allocator_Adapter<MALLOC> ALLOCATOR;
+
+  /// Our allocator (used for obtaining system time from shared memory).
+  ALLOCATOR * shmem_;
+
+  /// The name of the pool used by the allocator.
+  ACE_TCHAR poolname_[MAXPATHLEN + 1];
+
+  /// Pointer to delta time kept in shared memory.
+  long * delta_time_;
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+#endif /* ACE_SYSTEM_TIME_H */