Add FS, SD and SD_MMC (#256)

libraries/FS/src/FSImpl.h

@@ -0,0 +1,66 @@
+/*
+ FSImpl.h - base file system interface
+ Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
+ This file is part of the esp8266 core for Arduino environment.
+
+ 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 FSIMPL_H
+#define FSIMPL_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace fs
+{
+
+class FileImpl
+{
+public:
+    virtual ~FileImpl() { }
+    virtual size_t write(const uint8_t *buf, size_t size) = 0;
+    virtual size_t read(uint8_t* buf, size_t size) = 0;
+    virtual void flush() = 0;
+    virtual bool seek(uint32_t pos, SeekMode mode) = 0;
+    virtual size_t position() const = 0;
+    virtual size_t size() const = 0;
+    virtual void close() = 0;
+    virtual const char* name() const = 0;
+    virtual boolean isDirectory(void) = 0;
+    virtual FileImplPtr openNextFile(const char* mode) = 0;
+    virtual void rewindDirectory(void) = 0;
+    virtual operator bool() = 0;
+};
+
+class FSImpl
+{
+protected:
+    const char * _mountpoint;
+public:
+    FSImpl() : _mountpoint(NULL) { }
+    virtual ~FSImpl() { }
+    virtual FileImplPtr open(const char* path, const char* mode) = 0;
+    virtual bool exists(const char* path) = 0;
+    virtual bool rename(const char* pathFrom, const char* pathTo) = 0;
+    virtual bool remove(const char* path) = 0;
+    virtual bool mkdir(const char *path) = 0;
+    virtual bool rmdir(const char *path) = 0;
+    void mountpoint(const char *);
+    const char * mountpoint();
+};
+
+} // namespace fs
+
+#endif //FSIMPL_H