1 files changed, 101 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsAtomTable.h b/src/libs/xpcom18a4/xpcom/ds/nsAtomTable.h
new file mode 100644
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+++ b/src/libs/xpcom18a4/xpcom/ds/nsAtomTable.h
@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsAtomTable_h__
+#define nsAtomTable_h__
+
+#include "nsIAtom.h"
+
+/**
+ * A threadsafely-refcounted implementation of nsIAtom.  Note that
+ * AtomImpl objects are sometimes converted into PermanentAtomImpl
+ * objects using placement new and just overwriting the vtable pointer.
+ */
+
+class AtomImpl : public nsIAtom {
+public:
+  AtomImpl();
+
+protected:
+  // We don't need a virtual destructor here because PermanentAtomImpl
+  // deletions aren't handled through Release().
+  ~AtomImpl();
+
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIATOM
+
+  virtual PRBool IsPermanent();
+
+  void* operator new(size_t size, const nsACString& aString) CPP_THROW_NEW;
+
+  void operator delete(void* ptr) {
+    ::operator delete(ptr);
+  }
+
+  // for |#ifdef NS_BUILD_REFCNT_LOGGING| access to reference count
+  nsrefcnt GetRefCount() { return mRefCnt; }
+
+  // Actually more; 0 terminated. This slot is reserved for the
+  // terminating zero.
+  char mString[1];
+};
+
+/**
+ * A non-refcounted implementation of nsIAtom.
+ */
+
+class PermanentAtomImpl : public AtomImpl {
+public:
+#ifdef AIX
+  PermanentAtomImpl() : AtomImpl() {}
+#endif
+  NS_IMETHOD_(nsrefcnt) AddRef();
+  NS_IMETHOD_(nsrefcnt) Release();
+
+  virtual PRBool IsPermanent();
+
+  void* operator new(size_t size, const nsACString& aString) CPP_THROW_NEW {
+    return AtomImpl::operator new(size, aString);
+  }
+  void* operator new(size_t size, AtomImpl* aAtom) CPP_THROW_NEW;
+
+};
+
+void NS_PurgeAtomTable();
+
+#endif // nsAtomTable_h__