appstreambuf.h

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/*
 * appstreambuf.h
 *
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * Licensed 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.
 *
 */

#ifndef IBRCOMMON_APPSTREAMBUF_H_
#define IBRCOMMON_APPSTREAMBUF_H_

#include <streambuf>
#include <vector>
#include <string>
#include <stdio.h>

namespace ibrcommon
{
        class appstreambuf : public std::basic_streambuf<char, std::char_traits<char> >
        {
        public:
                enum { BUF_SIZE = 512 };

                enum Mode
                {
                        MODE_READ = 0,
                        MODE_WRITE = 1
                };

                appstreambuf(std::string command, appstreambuf::Mode mode);
                virtual ~appstreambuf();

        protected:
                virtual std::char_traits<char>::int_type underflow();
                virtual int sync();
                virtual std::char_traits<char>::int_type overflow( std::char_traits<char>::int_type m = traits_type::eof() );

        private:
                std::vector< char_type > m_buf;
                FILE *_handle;
        };
}

#endif /* APPSTREAMBUF_H_ */