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/*
* Copyright (C) 2023 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2023 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-runtime-lib
* Created on: 12 февр. 2021 г.
*
* lsp-runtime-lib 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
* any later version.
*
* lsp-runtime-lib 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 lsp-runtime-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_IO_INMARKSEQUENCE_H_
#define LSP_PLUG_IN_IO_INMARKSEQUENCE_H_
#include <lsp-plug.in/runtime/version.h>
#include <lsp-plug.in/runtime/LSPString.h>
#include <lsp-plug.in/io/IInSequence.h>
namespace lsp
{
namespace io
{
/**
* Buffered sequence, extends the underlying sequence with mark() and reset() methods
*/
class InMarkSequence: public IInSequence
{
protected:
IInSequence *pSequence;
ssize_t nMarkPos;
ssize_t nMarkLen;
ssize_t nMarkMax;
lsp_wchar_t *pBuf;
size_t nBufCap;
bool bClose;
protected:
status_t do_close();
ssize_t grow_buffer(size_t amount);
void clear_mark();
public:
explicit InMarkSequence();
InMarkSequence(const InMarkSequence &) = delete;
InMarkSequence(InMarkSequence &&) = delete;
virtual ~InMarkSequence() override;
InMarkSequence & operator = (const InMarkSequence &) = delete;
InMarkSequence & operator = (InMarkSequence &&) = delete;
public:
status_t wrap(IInSequence *in, bool close = false);
public:
virtual status_t close() override;
virtual ssize_t read(lsp_wchar_t *dst, size_t count) override;
virtual lsp_swchar_t read() override;
virtual ssize_t skip(size_t count) override;
virtual status_t mark(ssize_t limit) override;
virtual status_t reset() override;
};
} /* namespace io */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_IO_INMARKSEQUENCE_H_ */
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