Merge 3.3.3 release with Drano HTTP library at 3.3.0

Big delta was converting the new texture debugger support code
to the new library.  Viewer manifest should probably get an eyeball
before release.

1 files changed, 125 insertions, 0 deletions

diff --git a/indra/llcorehttp/_refcounted.h b/indra/llcorehttp/_refcounted.h
new file mode 100644
index 0000000000..a96c65fb6b
--- /dev/null
+++ b/indra/llcorehttp/_refcounted.h
@@ -0,0 +1,125 @@
+/** 
+ * @file _refcounted.h
+ * @brief Atomic, thread-safe ref counting and destruction mixin class
+ *
+ * $LicenseInfo:firstyear=2012&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LLCOREINT__REFCOUNTED_H_
+#define LLCOREINT__REFCOUNTED_H_
+
+
+#include "linden_common.h"
+
+#include <boost/thread.hpp>
+
+#include "llapr.h"
+
+
+namespace LLCoreInt
+{
+
+
+class RefCounted
+{
+private:
+	RefCounted();								// Not defined - may not be default constructed
+	void operator=(const RefCounted &);			// Not defined
+	
+public:
+	explicit RefCounted(bool const implicit)
+		: mRefCount(implicit)
+		{}
+
+	// ref-count interface
+	void addRef() const;
+	void release() const;
+	bool isLastRef() const;
+	S32 getRefCount() const;
+	void noRef() const;
+
+	static const S32			NOT_REF_COUNTED = -1;
+	
+protected:
+	virtual ~RefCounted();
+	virtual void destroySelf();
+
+private:
+	mutable LLAtomicS32			mRefCount;
+
+}; // end class RefCounted
+
+
+inline void RefCounted::addRef() const
+{
+	S32 count(mRefCount++);
+	llassert_always(count >= 0);
+}
+
+
+inline void RefCounted::release() const
+{
+	S32 count(mRefCount);
+	llassert_always(count != NOT_REF_COUNTED);
+	llassert_always(count > 0);
+	count = mRefCount--;
+
+	// clean ourselves up if that was the last reference
+	if (0 == count)
+	{
+		const_cast<RefCounted *>(this)->destroySelf();
+	}
+}
+
+
+inline bool RefCounted::isLastRef() const
+{
+	const S32 count(mRefCount);
+	llassert_always(count != NOT_REF_COUNTED);
+	llassert_always(count >= 1);
+	return (1 == count);
+}
+
+
+inline S32 RefCounted::getRefCount() const
+{
+	const S32 result(mRefCount);
+	return result;
+}
+
+
+inline void RefCounted::noRef() const
+{
+	llassert_always(mRefCount <= 1);
+	mRefCount = NOT_REF_COUNTED;
+}
+
+
+inline void RefCounted::destroySelf()
+{
+	delete this;
+}
+
+} // end namespace LLCoreInt
+
+#endif	// LLCOREINT__REFCOUNTED_H_
+