75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/* Arduino SdFat Library
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* Copyright (C) 2009 by William Greiman
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*
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* This file is part of the Arduino SdFat Library
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*
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* This Library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Arduino SdFat Library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* \brief SdFile class
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*/
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#include "Marlin.h"
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#ifdef SDSUPPORT
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#include "SdBaseFile.h"
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//#include <Print.h>
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#ifndef SdFile_h
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#define SdFile_h
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//------------------------------------------------------------------------------
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/**
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* \class SdFile
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* \brief SdBaseFile with Print.
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*/
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class SdFile : public SdBaseFile/*, public Print*/ {
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// GCode filtering vars and methods - due to optimization reasons not wrapped in a separate class
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// beware - this read ptr is manipulated inside just 2 methods - readFilteredGcode and gfReset
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// If you even want to call gfReset from readFilteredGcode, you must make sure
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// to update gfReadPtr inside readFilteredGcode from a local copy (see explanation of this trick in readFilteredGcode)
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const uint8_t *gfReadPtr;
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uint32_t gfBlock; // remember the current file block to be kept in cache - due to reuse of the memory, the block may fall out a must be read back
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uint16_t gfOffset;
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const uint8_t *gfBlockBuffBegin()const;
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void gfReset();
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bool gfEnsureBlock();
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bool gfComputeNextFileBlock();
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void gfUpdateCurrentPosition(uint16_t inc);
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public:
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SdFile() {}
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SdFile(const char* name, uint8_t oflag);
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#if ARDUINO >= 100
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size_t write(uint8_t b);
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#else
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void write(uint8_t b);
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#endif
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bool openFilteredGcode(SdBaseFile* dirFile, const char* path);
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int16_t readFilteredGcode();
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bool seekSetFilteredGcode(uint32_t pos);
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int16_t write(const void* buf, uint16_t nbyte);
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void write(const char* str);
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void write_P(PGM_P str);
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void writeln_P(PGM_P str);
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};
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#endif // SdFile_h
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#endif
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