1 files changed, 57 insertions, 0 deletions
diff --git a/ACE/ace/Countdown_Time.cpp b/ACE/ace/Countdown_Time.cpp
new file mode 100644
index 00000000000..335931514e4
--- /dev/null
+++ b/ACE/ace/Countdown_Time.cpp
@@ -0,0 +1,57 @@
+// $Id$
+
+#include "ace/Countdown_Time.h"
+#include "ace/OS_NS_sys_time.h"
+
+#if !defined (__ACE_INLINE__)
+#include "ace/Countdown_Time.inl"
+#endif /* __ACE_INLINE__ */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+ACE_Countdown_Time::ACE_Countdown_Time (ACE_Time_Value *max_wait_time)
+  : max_wait_time_ (max_wait_time),
+    stopped_ (false)
+{
+  this->start ();
+}
+
+ACE_Countdown_Time::~ACE_Countdown_Time (void)
+{
+  this->stop ();
+}
+
+void
+ACE_Countdown_Time::start (void)
+{
+  if (this->max_wait_time_ != 0)
+    {
+      this->start_time_ = ACE_OS::gettimeofday ();
+      this->stopped_ = false;
+    }
+}
+
+void
+ACE_Countdown_Time::stop (void)
+{
+  if (this->max_wait_time_ != 0 && !this->stopped_)
+    {
+      ACE_Time_Value const elapsed_time =
+        ACE_OS::gettimeofday () - this->start_time_;
+
+      if (elapsed_time >= ACE_Time_Value::zero &&
+          *this->max_wait_time_ > elapsed_time)
+        {
+          *this->max_wait_time_ -= elapsed_time;
+        }
+      else
+        {
+          // Used all of timeout.
+          *this->max_wait_time_ = ACE_Time_Value::zero;
+          // errno = ETIME;
+        }
+      this->stopped_ = true;
+    }
+}
+
+ACE_END_VERSIONED_NAMESPACE_DECL