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Diffstat (limited to 'libraries/Bridge/FileIO.h')
-rw-r--r-- | libraries/Bridge/FileIO.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/libraries/Bridge/FileIO.h b/libraries/Bridge/FileIO.h new file mode 100644 index 0000000..0807287 --- /dev/null +++ b/libraries/Bridge/FileIO.h @@ -0,0 +1,103 @@ +/* + Copyright (c) 2013 Arduino LLC. All right reserved. + + This library 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 2.1 of the License, or (at your option) any later version. + + This library 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 library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#ifndef __FILEIO_H__ +#define __FILEIO_H__ + +#include <Process.h> + +#define FILE_READ 0 +#define FILE_WRITE 1 +#define FILE_APPEND 2 + +class File : public Stream { + +public: + File(BridgeClass &b = Bridge); + File(const char *_filename, uint8_t _mode, BridgeClass &b = Bridge); + ~File(); + + virtual size_t write(uint8_t); + virtual size_t write(const uint8_t *buf, size_t size); + virtual int read(); + virtual int peek(); + virtual int available(); + virtual void flush(); + int read(void *buf, uint16_t nbyte); + boolean seek(uint32_t pos); + uint32_t position(); + uint32_t size(); + void close(); + operator bool(); + const char * name(); + boolean isDirectory(); + File openNextFile(uint8_t mode = FILE_READ); + void rewindDirectory(void); + + //using Print::write; + +private: + void doBuffer(); + uint8_t buffered; + uint8_t readPos; + uint16_t dirPosition; + static const int BUFFER_SIZE = 64; + uint8_t buffer[BUFFER_SIZE]; + + +private: + BridgeClass &bridge; + String filename; + uint8_t mode; + uint8_t handle; + +}; + +class FileSystemClass { +public: + FileSystemClass() : bridge(Bridge) { } + FileSystemClass(BridgeClass &_b) : bridge(_b) { } + + boolean begin(); + + // Open the specified file/directory with the supplied mode (e.g. read or + // write, etc). Returns a File object for interacting with the file. + // Note that currently only one file can be open at a time. + File open(const char *filename, uint8_t mode = FILE_READ); + + // Methods to determine if the requested file path exists. + boolean exists(const char *filepath); + + // Create the requested directory heirarchy--if intermediate directories + // do not exist they will be created. + boolean mkdir(const char *filepath); + + // Delete the file. + boolean remove(const char *filepath); + + boolean rmdir(const char *filepath); + +private: + friend class File; + + BridgeClass &bridge; +}; + +extern FileSystemClass FileSystem; + +#endif |