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/*******************************************************************************
* Goggles Audio Player Library *
********************************************************************************
* Copyright (C) 2010-2021 by Sander Jansen. All Rights Reserved *
* --- *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see http://www.gnu.org/licenses. *
********************************************************************************/
#ifndef AP_BUFFER_IO_H
#define AP_BUFFER_IO_H
#include "ap_buffer_base.h"
namespace ap {
class GMAPI BufferIO : public FXIO, public BufferBase {
protected:
FXIO * io; // IO
FXuchar dir; // buffer direction
protected:
enum { // Buffer Direction
DirNone = 0,
DirWrite = 1,
DirRead = 2,
};
protected:
FXuval writeBuffer();
FXuval readBuffer();
FXbool flushBuffer();
private:
BufferIO(const BufferIO&);
BufferIO &operator=(const BufferIO&);
public:
BufferIO(FXuval size=8192UL);
BufferIO(FXIO * io,FXuval size=8192UL);
/// Attach an IO
void attach(FXIO * io);
// Return attached io
FXIO * attached() const;
/// Return true if open
FXbool isOpen() const override;
/// Return true if serial access only
FXbool isSerial() const override;
/// Get current file position
FXlong position() const override;
/// Change file position, returning new position from start
FXlong position(FXlong offset,FXuint from=FXIO::Begin) override;
/// Peek block of bytes, return number of bytes peeked
virtual FXival peekBlock(void* data,FXival count);
/// Read block of bytes, returning number of bytes read
FXival readBlock(void* data,FXival count) override;
/// Write block of bytes, returning number of bytes written
FXival writeBlock(const void* data,FXival count) override;
/// Truncate file
FXlong truncate(FXlong size) override;
/// Flush
FXbool flush() override;
/// Test if we're at the end
FXint eof() override;
/// Return size of i/o device
FXlong size() override;
/// Close handle
FXbool close() override;
/// Destroy and close
virtual ~BufferIO();
};
}
#endif
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