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104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
/*
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Copyright (c) 2013 Arduino LLC. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __FILEIO_H__
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#define __FILEIO_H__
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#include <Process.h>
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#define FILE_READ 0
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#define FILE_WRITE 1
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#define FILE_APPEND 2
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class File : public Stream {
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public:
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File(BridgeClass &b = Bridge);
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File(const char *_filename, uint8_t _mode, BridgeClass &b = Bridge);
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~File();
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virtual size_t write(uint8_t);
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virtual size_t write(const uint8_t *buf, size_t size);
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virtual int read();
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virtual int peek();
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virtual int available();
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virtual void flush();
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int read(void *buf, uint16_t nbyte);
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boolean seek(uint32_t pos);
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uint32_t position();
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uint32_t size();
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void close();
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operator bool();
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const char * name();
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boolean isDirectory();
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File openNextFile(uint8_t mode = FILE_READ);
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void rewindDirectory(void);
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//using Print::write;
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private:
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void doBuffer();
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uint8_t buffered;
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uint8_t readPos;
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uint16_t dirPosition;
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static const int BUFFER_SIZE = 64;
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uint8_t buffer[BUFFER_SIZE];
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private:
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BridgeClass &bridge;
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String filename;
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uint8_t mode;
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uint8_t handle;
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};
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class FileSystemClass {
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public:
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FileSystemClass() : bridge(Bridge) { }
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FileSystemClass(BridgeClass &_b) : bridge(_b) { }
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boolean begin();
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// Open the specified file/directory with the supplied mode (e.g. read or
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// write, etc). Returns a File object for interacting with the file.
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// Note that currently only one file can be open at a time.
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File open(const char *filename, uint8_t mode = FILE_READ);
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// Methods to determine if the requested file path exists.
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boolean exists(const char *filepath);
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// Create the requested directory heirarchy--if intermediate directories
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// do not exist they will be created.
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boolean mkdir(const char *filepath);
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// Delete the file.
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boolean remove(const char *filepath);
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boolean rmdir(const char *filepath);
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private:
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friend class File;
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BridgeClass &bridge;
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};
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extern FileSystemClass FileSystem;
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#endif
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