Diff: mbed-os/platform/FileSystemHandle.h

Revision:

0:9b3d4731edbb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/platform/FileSystemHandle.h	Thu Jun 21 13:51:43 2018 +0000
@@ -0,0 +1,114 @@
+/* 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_FILESYSTEMHANDLE_H
+#define MBED_FILESYSTEMHANDLE_H
+
+#include "platform/platform.h"
+
+#include "platform/FileBase.h"
+#include "platform/FileHandle.h"
+#include "platform/DirHandle.h"
+#include "platform/NonCopyable.h"
+
+namespace mbed {
+/** \addtogroup platform */
+/** @{*/
+/**
+ * \defgroup platform_FileSystemHandle FileSystemHandle functions
+ * @{
+ */
+
+
+/** A filesystem-like object is one that can be used to open file-like
+ *  objects 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).
+ *
+ * @note Synchronization level: Set by subclass
+ */
+class FileSystemHandle : private NonCopyable<FileSystemHandle> {
+public:
+    /** FileSystemHandle lifetime
+     */
+    virtual ~FileSystemHandle() {}
+
+    /** Open a file on the filesystem
+     *
+     *  @param file     Destination for the handle to a newly created file
+     *  @param filename The name of the file to open
+     *  @param flags    The flags to open the file in, one of O_RDONLY, O_WRONLY, O_RDWR,
+     *                  bitwise or'd with one of O_CREAT, O_TRUNC, O_APPEND
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int open(FileHandle **file, const char *filename, int flags) = 0;
+
+    /** Open a directory on the filesystem
+     *
+     *  @param dir      Destination for the handle to the directory
+     *  @param path     Name of the directory to open
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int open(DirHandle **dir, const char *path);
+
+    /** Remove a file from the filesystem.
+     *
+     *  @param path     The name of the file to remove.
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int remove(const char *path);
+
+    /** Rename a file in the filesystem.
+     *
+     *  @param path     The name of the file to rename.
+     *  @param newpath  The name to rename it to
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int rename(const char *path, const char *newpath);
+
+    /** Store information about the file in a stat structure
+     *
+     *  @param path     The name of the file to find information about
+     *  @param st       The stat buffer to write to
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int stat(const char *path, struct stat *st);
+
+    /** Create a directory in the filesystem.
+     *
+     *  @param path     The name of the directory to create.
+     *  @param mode     The permissions with which to create the directory
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int mkdir(const char *path, mode_t mode);
+
+    /** Store information about the mounted filesystem in a statvfs structure
+     *
+     *  @param path     The name of the file to find information about
+     *  @param buf      The stat buffer to write to
+     *  @return         0 on success, negative error code on failure
+     */
+     virtual int statvfs(const char *path, struct statvfs *buf);
+};
+/**@}*/
+
+/**@}*/
+
+} // namespace mbed
+
+#endif
+
+/** @}*/