PipeSource.h

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/*
 * SNode.C - a slim toolkit for network communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025
 *
 * This program 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef CORE_PIPE_PIPESOURCE_H
#define CORE_PIPE_PIPESOURCE_H
 
#include "core/eventreceiver/WriteEventReceiver.h"
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <cstddef>
#include <functional>
#include <string>
#include <vector>
 
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
namespace core::pipe {
 
    class PipeSource : public core::eventreceiver::WriteEventReceiver {
    public:
        PipeSource(const PipeSource&) = delete;
 
        PipeSource& operator=(const PipeSource&) = delete;
 
        explicit PipeSource(int fd);
        ~PipeSource() override;
 
        void send(const char* chunk, std::size_t chunkLen);
        void send(const std::string& data);
        void eof();
 
        void setOnError(const std::function<void(int)>& onError);
 
    protected:
        void writeEvent() override;
        void unobservedEvent() override;
 
    private:
        std::function<void(int errnum)> onError;
 
        std::vector<char> writeBuffer;
    };
 
} // namespace core::pipe
 
#endif // CORE_PIPE_  PIPESOURCE_H