Initial revision

1 files changed, 86 insertions, 0 deletions

diff --git a/ace/System_Time.cpp b/ace/System_Time.cpp
new file mode 100644
index 00000000000..14a13a9939f
--- /dev/null
+++ b/ace/System_Time.cpp
@@ -0,0 +1,86 @@
+// System_Time.cpp
+// $Id$
+
+#define ACE_BUILD_DLL
+#include "ace/Time_Value.h"
+#include "ace/System_Time.h"
+
+ACE_System_Time::ACE_System_Time (const char *poolname)
+: delta_time_ (0)
+{ 
+  ACE_TRACE ("ACE_System_Time::ACE_System_Time");
+  ACE_NEW (this->shmem_, ALLOCATOR (poolname));
+}
+
+ACE_System_Time::~ACE_System_Time (void)
+{  
+  delete this->shmem_;
+  ACE_TRACE ("ACE_System_Time::~ACE_System_Time");
+}
+
+// Get the local system time.
+
+int 
+ACE_System_Time::get_local_system_time (ACE_UINT32 &time_out)
+{
+  ACE_TRACE ("ACE_System_Time::get_local_system_time");
+  time_t t = ACE_OS::time (0);
+  time_out = t;
+  return 0;
+}
+
+// Get the system time of the central time server.
+
+int 
+ACE_System_Time::get_master_system_time (ACE_UINT32 &time_out)
+{
+  ACE_TRACE ("ACE_System_Time::get_master_system_time");
+  if (this->delta_time_ == 0)
+    {
+      // Try to find it
+      void * temp;
+      if (this->shmem_->find (ACE_DEFAULT_TIME_SERVER_STR, temp) ==  -1)
+	{
+	  // No time entry in shared memory (meaning no Clerk exists)
+	  // so return the local time of the host.
+	  return this->get_local_system_time (time_out);
+	}
+      else
+	{
+	  // Extract the delta time
+	  this->delta_time_ = (long *) temp;
+	}
+    }
+  ACE_UINT32 local_time;
+
+  // If delta_time is positive, it means that the system clock is
+  // ahead of our local clock so add delta to the local time to get an
+  // approximation of the system time. Else if delta time is negative,
+  // it means that our local clock is ahead of the system clock, so
+  // return the last local time stored (to avoid time conflicts).
+  if (*this->delta_time_ >=0 )
+    {
+      this->get_local_system_time (local_time);
+      time_out = local_time + (ACE_UINT32) *this->delta_time_;
+    }
+  else
+    // Return the last local time. Note that this is stored as the
+    // second field in shared memory.
+    time_out = *(this->delta_time_ + 1);
+  return 0;
+}
+
+// Synchronize local system time with the central time server using
+// specified mode.
+
+int 
+ACE_System_Time::sync_local_system_time (ACE_System_Time::Sync_Mode mode)
+{
+  ACE_TRACE ("ACE_System_Time::sync_local_system_time");
+  return 0;
+}
+
+#if defined (ACE_TEMPLATES_REQUIRE_SPECIALIZATION)
+template class ACE_Malloc<ACE_MMAP_Memory_Pool, ACE_Null_Mutex>;
+template class ACE_Allocator_Adapter<ACE_Malloc<ACE_MMAP_Memory_Pool, ACE_Null_Mutex> >;
+#endif /* ACE_TEMPLATES_REQUIRE_SPECIALIZATION */