Bridge library to the 1.5 format

libraries/Bridge/src/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