ChangeLogTag: Thu Oct 12 18:19:46 2000 Priyanka Gontla <pgontla@ece.uci.edu>

1 files changed, 48 insertions, 0 deletions

diff --git a/ace/Test_and_Set.cpp b/ace/Test_and_Set.cpp
new file mode 100644
index 00000000000..20ff024fb17
--- /dev/null
+++ b/ace/Test_and_Set.cpp
@@ -0,0 +1,48 @@
+// $Id$
+
+#ifndef ACE_TEST_AND_SET_H
+#define ACE_TEST_AND_SET_H
+
+#include "ace/Thread.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "Test_and_Set.h"
+
+ACE_RCSID(ace, Test_and_Set, "$Id$")
+
+template <class ACE_LOCK, class TYPE>
+ACE_Test_and_Set<ACE_LOCK, TYPE>::ACE_Test_and_Set (TYPE initial_value)
+  : is_set_ (initial_value)
+{
+}
+
+// Returns true if we are done, else false.
+template <class ACE_LOCK, class TYPE> TYPE
+ACE_Test_and_Set<ACE_LOCK, TYPE>::is_set (void) const
+{
+  ACE_GUARD_RETURN (ACE_LOCK, ace_mon, (ACE_LOCK &) this->lock_, this->is_set_);
+  return this->is_set_;
+}
+
+// Sets the <is_set_> status.
+template <class ACE_LOCK, class TYPE> TYPE
+ACE_Test_and_Set<ACE_LOCK, TYPE>::set (TYPE status)
+{
+  ACE_GUARD_RETURN (ACE_LOCK, ace_mon, this->lock_, this->is_set_);
+  TYPE o_status = this->is_set_;
+  this->is_set_ = status;
+  return o_status;
+}
+
+template <class ACE_LOCK, class TYPE> int
+ACE_Test_and_Set<ACE_LOCK, TYPE>::handle_signal (int, siginfo_t *, ucontext_t *)
+{
+  // By setting this to 1, we are "signaling" to anyone calling
+  // <is_set> or or <set> that the "test and set" object is in the
+  // "signaled" state, i.e., it's "available" to be set back to 0.
+  this->set (1);
+  return 0;
+}