FS wrapper

cores/esp8266/FS.h

@@ -0,0 +1,106 @@
+/*
+ FS.h - file system wrapper
+ 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 FS_H
+#define FS_H
+
+#include <Arduino.h>
+#include <memory>
+
+class FileImpl;
+typedef std::shared_ptr<FileImpl> FileImplPtr;
+class FSImpl;
+typedef std::shared_ptr<FSImpl> FSImplPtr;
+class DirImpl;
+typedef std::shared_ptr<DirImpl> DirImplPtr;
+
+template <typename Tfs>
+bool mount(Tfs& fs, const char* mountPoint);
+
+enum SeekMode {
+    SeekSet = 0,
+    SeekCur = 1,
+    SeekEnd = 2
+};
+
+class File : public Stream
+{
+public:
+    File(FileImplPtr p = FileImplPtr()) : _p(p) {}
+
+    // Print methods:
+    size_t write(uint8_t) override;
+    size_t write(const uint8_t *buf, size_t size) override;
+
+    // Stream methods:
+    int available() override;
+    int read() override;
+    int peek() override;
+    void flush() override;
+
+    size_t read(uint8_t* buf, size_t size);
+    bool seek(uint32_t pos, SeekMode mode);
+    size_t position() const;
+    size_t size() const;
+    void close();
+    operator bool() const;
+
+protected:
+    FileImplPtr _p;
+};
+
+class Dir {
+public:
+    Dir(DirImplPtr impl = DirImplPtr()): _impl(impl) { }
+
+    File openFile(const char* mode);
+    String fileName();
+    bool next();
+
+protected:
+    DirImplPtr _impl;
+};
+
+class FS
+{
+public:
+    FS(FSImplPtr impl) : _impl(impl) { }
+    File open(const char* path, const char* mode);
+    File open(const String& path, const char* mode);
+    Dir openDir(const char* path);
+    Dir openDir(const String& path);
+
+protected:
+    FSImplPtr _impl;
+
+    template <typename Tfs>
+    friend bool mount(Tfs& fs, const char* mountPoint);
+};
+
+extern FS SPIFFS;
+
+template<>
+bool mount<FS>(FS& fs, const char* mountPoint);
+
+File open(const char* path, const char* mode);
+
+Dir openDir(const char* path);
+
+#endif //FS_H