mbed library sources
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api/FileSystemLike.h
- Committer:
- fwndz
- Date:
- 2016-12-21
- Revision:
- 636:de8f3520e5c1
- Parent:
- 13:0645d8841f51
File content as of revision 636:de8f3520e5c1:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBED_FILESYSTEMLIKE_H #define MBED_FILESYSTEMLIKE_H #include "platform.h" #include "FileBase.h" #include "FileHandle.h" #include "DirHandle.h" namespace mbed { /** A filesystem-like object is one that can be used to open files * though it by fopen("/name/filename", mode) * * Implementations must define at least open (the default definitions * of the rest of the functions just return error values). */ class FileSystemLike : public FileBase { public: /** FileSystemLike constructor * * @param name The name to use for the filesystem. */ FileSystemLike(const char *name); virtual ~FileSystemLike(); static DirHandle *opendir(); friend class BaseDirHandle; /** Opens a file from the filesystem * * @param filename The name of the file to open. * @param flags One of O_RDONLY, O_WRONLY, or O_RDWR, OR'd with * zero or more of O_CREAT, O_TRUNC, or O_APPEND. * * @returns * A pointer to a FileHandle object representing the * file on success, or NULL on failure. */ virtual FileHandle *open(const char *filename, int flags) = 0; /** Remove a file from the filesystem. * * @param filename the name of the file to remove. * @param returns 0 on success, -1 on failure. */ virtual int remove(const char *filename) { return -1; }; /** Rename a file in the filesystem. * * @param oldname the name of the file to rename. * @param newname the name to rename it to. * * @returns * 0 on success, * -1 on failure. */ virtual int rename(const char *oldname, const char *newname) { return -1; }; /** Opens a directory in the filesystem and returns a DirHandle * representing the directory stream. * * @param name The name of the directory to open. * * @returns * A DirHandle representing the directory stream, or * NULL on failure. */ virtual DirHandle *opendir(const char *name) { return NULL; }; /** Creates a directory in the filesystem. * * @param name The name of the directory to create. * @param mode The permissions to create the directory with. * * @returns * 0 on success, * -1 on failure. */ virtual int mkdir(const char *name, mode_t mode) { return -1; } // TODO other filesystem functions (mkdir, rm, rn, ls etc) }; } // namespace mbed #endif