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Diffstat (limited to 'trunk/qpid/cpp/src/qpid/RefCountedBuffer.h')
-rw-r--r-- | trunk/qpid/cpp/src/qpid/RefCountedBuffer.h | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/trunk/qpid/cpp/src/qpid/RefCountedBuffer.h b/trunk/qpid/cpp/src/qpid/RefCountedBuffer.h deleted file mode 100644 index c332325378..0000000000 --- a/trunk/qpid/cpp/src/qpid/RefCountedBuffer.h +++ /dev/null @@ -1,89 +0,0 @@ -#ifndef QPID_REFCOUNTEDBUFFER_H -#define QPID_REFCOUNTEDBUFFER_H - -/* - * - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - * - */ - -#include <boost/utility.hpp> -#include <boost/detail/atomic_count.hpp> -#include <boost/intrusive_ptr.hpp> - -namespace qpid { -// FIXME aconway 2008-09-06: easy to add alignment -/** - * Reference-counted byte buffer. - * No alignment guarantees. - */ -class RefCountedBuffer : boost::noncopyable { - mutable boost::detail::atomic_count count; - RefCountedBuffer(); - void destroy() const; - char* addr() const; - -public: - /** Smart char pointer to a reference counted buffer */ - class pointer { - boost::intrusive_ptr<RefCountedBuffer> p; - char* cp() const; - pointer(RefCountedBuffer* x); - friend class RefCountedBuffer; - - public: - pointer(); - pointer(const pointer&); - ~pointer(); - pointer& operator=(const pointer&); - - char* get() { return cp(); } - operator char*() { return cp(); } - char& operator*() { return *cp(); } - char& operator[](size_t i) { return cp()[i]; } - - const char* get() const { return cp(); } - operator const char*() const { return cp(); } - const char& operator*() const { return *cp(); } - const char& operator[](size_t i) const { return cp()[i]; } - }; - - /** Create a reference counted buffer of size n */ - static pointer create(size_t n); - - /** Get a pointer to the start of the buffer. */ - char* get() { return addr(); } - const char* get() const { return addr(); } - char& operator[](size_t i) { return get()[i]; } - const char& operator[](size_t i) const { return get()[i]; } - - void addRef() const { ++count; } - void release() const { if (--count==0) destroy(); } - long refCount() { return count; } -}; - -} // namespace qpid - -// intrusive_ptr support. -namespace boost { -inline void intrusive_ptr_add_ref(const qpid::RefCountedBuffer* p) { p->addRef(); } -inline void intrusive_ptr_release(const qpid::RefCountedBuffer* p) { p->release(); } -} - - -#endif /*!QPID_REFCOUNTEDBUFFER_H*/ |