56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_MEMORY_BUFFER_CIRCULAR_HPP
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#define __UTIL_MEMORY_BUFFER_CIRCULAR_HPP
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#include <cstddef>
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namespace util { namespace memory { namespace buffer {
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// buffer size is advisory and will likely depend on page size. the user
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// must check the size after creation if this field is important for
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// their usage.
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class circular {
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public:
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using value_type = char;
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explicit circular (size_t bytes);
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~circular ();
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circular (const circular&) = delete;
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circular (circular&&) = delete;
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circular& operator= (const circular&) = delete;
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circular& operator= (circular&&) = delete;
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char& operator[] (size_t)&;
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const char& operator[] (size_t) const&;
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char* begin (void)&;
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char* end (void)&;
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const char* begin (void) const&;
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const char* end (void) const&;
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size_t size (void) const;
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private:
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char *m_begin, *m_end;
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};
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} } }
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#endif
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