1 files changed, 75 insertions, 0 deletions
diff --git a/ACE/protocols/ace/INet/IOS_util.h b/ACE/protocols/ace/INet/IOS_util.h
new file mode 100644
index 00000000000..9d91ba93237
--- /dev/null
+++ b/ACE/protocols/ace/INet/IOS_util.h
@@ -0,0 +1,75 @@
+// $Id$
+
+/**
+ * @file IOS_util.h
+ *
+ * @author Martin Corino <mcorino@remedy.nl>
+ */
+
+#ifndef ACE_IOS_UTIL_H
+#define ACE_IOS_UTIL_H
+
+#include /**/ "ace/pre.h"
+
+#include "ace/INet/INet_Export.h"
+#include <iostream>
+
+// ace_ios_init
+//
+// There is reported to be a bug in the Dinkumware
+// implementation of iostreams where calling
+// basic_ios::init() multiple times for the same
+// basic_ios instance creates a memory leak as a result
+// of the ios' locale being allocated more than
+// once, each time overwriting the old pointer.
+//
+// This usually happens in multiple inheritance
+// schemes involving a derived IOS class and a
+// derived IO stream class (i, o or io).
+//
+// The fix for Dinkumware is to not call init() in the
+// derived IOS class but call init() only for each
+// stream object - in the istream, ostream or
+// iostream constructor.
+//
+// Other stream implementations, however, require that
+// init() is called in the derived IOS constructor.
+// So we replace each call to init() with the
+// ace_ios_init macro defined below.
+
+
+#if !defined(ACE_IOS_INIT_FIX)
+  // Microsoft Visual Studio with Dinkumware STL (but not STLport)
+# if defined(_MSC_VER) && (!defined(_STLP_MSVC) || defined(_STLP_NO_OWN_IOSTREAMS))
+#   define ACE_IOS_INIT_FIX 1
+    // QNX with Dinkumware but not GNU C++ Library
+# elif defined(__QNX__) && !defined(__GLIBCPP__)
+#   define ACE_IOS_INIT_FIX 1
+# endif
+#endif
+
+#if defined(ACE_IOS_INIT_FIX)
+# define ace_ios_init(buf)
+#else
+# define ace_ios_init(buf) this->init(buf)
+#endif
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+namespace ACE
+  {
+    namespace IOS
+      {
+        class ACE_INET_Export Null
+          {
+            public:
+              static std::ostream out_stream_;
+              static std::istream in_stream_;
+          };
+      }
+  }
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+#endif /* ACE_IOS_UTIL_H */