1 files changed, 53 insertions, 0 deletions
diff --git a/ACE/examples/Threads/thread_specific.h b/ACE/examples/Threads/thread_specific.h
new file mode 100644
index 00000000000..1ae48ee114f
--- /dev/null
+++ b/ACE/examples/Threads/thread_specific.h
@@ -0,0 +1,53 @@
+// $Id$
+
+#ifndef ACE_THREAD_SPECIFIC_H
+
+#include "ace/Guard_T.h"
+#include "ace/Thread_Mutex.h"
+
+// Define a class that will be stored in thread-specific data.  Note
+// that as far as this class is concerned it's just a regular C++
+// class.  The ACE_TSS wrapper transparently ensures that objects of
+// this class will be placed in thread-specific storage.  All calls on
+// ACE_TSS::operator->() are delegated to the appropriate method in
+// the Errno class.
+
+class Errno
+{
+public:
+  int error (void) { return this->errno_; }
+  void error (int i) { this->errno_ = i; }
+
+  int line (void) { return this->lineno_; }
+  void line (int l) { this->lineno_ = l; }
+
+  // Errno::flags_ is a static variable, so we've got to protect it
+  // with a mutex since it isn't kept in thread-specific storage.
+  int flags (void)
+  {
+    ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, Errno::lock_, -1);
+
+    return Errno::flags_;
+  }
+
+  void flags (int f)
+  {
+    ACE_GUARD (ACE_Thread_Mutex, ace_mon, Errno::lock_);
+
+    Errno::flags_ = f;
+  }
+
+private:
+  // = errno_ and lineno_ will be thread-specific data so they don't
+  // need a lock.
+  int errno_;
+  int lineno_;
+
+  static int flags_;
+#if defined (ACE_HAS_THREADS)
+  // flags_ needs a lock.
+  static ACE_Thread_Mutex lock_;
+#endif /* ACE_HAS_THREADS */
+};
+
+#endif /* ACE_THREAD_SPECIFIC_H */