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mbed/FileSystemLike.h@2:99b1cb0d9f5e, 2017-04-18 (annotated)

Committer:
SquirrelGod
Date:
Tue Apr 18 16:02:40 2017 +0000
Revision:
2:99b1cb0d9f5e
AX12_control

Who changed what in which revision?

UserRevisionLine numberNew contents of line
SquirrelGod 2:99b1cb0d9f5e 1 /* mbed Microcontroller Library - FileSystemLike
SquirrelGod 2:99b1cb0d9f5e 2 * Copyright (c) 2008-2009 ARM Limited. All rights reserved.
SquirrelGod 2:99b1cb0d9f5e 3 */
SquirrelGod 2:99b1cb0d9f5e 4
SquirrelGod 2:99b1cb0d9f5e 5 #ifndef MBED_FILESYSTEMLIKE_H
SquirrelGod 2:99b1cb0d9f5e 6 #define MBED_FILESYSTEMLIKE_H
SquirrelGod 2:99b1cb0d9f5e 7
SquirrelGod 2:99b1cb0d9f5e 8 #ifdef __ARMCC_VERSION
SquirrelGod 2:99b1cb0d9f5e 9 # define O_RDONLY 0
SquirrelGod 2:99b1cb0d9f5e 10 # define O_WRONLY 1
SquirrelGod 2:99b1cb0d9f5e 11 # define O_RDWR 2
SquirrelGod 2:99b1cb0d9f5e 12 # define O_CREAT 0x0200
SquirrelGod 2:99b1cb0d9f5e 13 # define O_TRUNC 0x0400
SquirrelGod 2:99b1cb0d9f5e 14 # define O_APPEND 0x0008
SquirrelGod 2:99b1cb0d9f5e 15 typedef int mode_t;
SquirrelGod 2:99b1cb0d9f5e 16 #else
SquirrelGod 2:99b1cb0d9f5e 17 # include <sys/fcntl.h>
SquirrelGod 2:99b1cb0d9f5e 18 #endif
SquirrelGod 2:99b1cb0d9f5e 19 #include "Base.h"
SquirrelGod 2:99b1cb0d9f5e 20 #include "FileHandle.h"
SquirrelGod 2:99b1cb0d9f5e 21 #include "DirHandle.h"
SquirrelGod 2:99b1cb0d9f5e 22
SquirrelGod 2:99b1cb0d9f5e 23 namespace mbed {
SquirrelGod 2:99b1cb0d9f5e 24
SquirrelGod 2:99b1cb0d9f5e 25 /* Class FileSystemLike
SquirrelGod 2:99b1cb0d9f5e 26 * A filesystem-like object is one that can be used to open files
SquirrelGod 2:99b1cb0d9f5e 27 * though it by fopen("/name/filename", mode)
SquirrelGod 2:99b1cb0d9f5e 28 *
SquirrelGod 2:99b1cb0d9f5e 29 * Implementations must define at least open (the default definitions
SquirrelGod 2:99b1cb0d9f5e 30 * of the rest of the functions just return error values).
SquirrelGod 2:99b1cb0d9f5e 31 */
SquirrelGod 2:99b1cb0d9f5e 32 class FileSystemLike : public Base {
SquirrelGod 2:99b1cb0d9f5e 33
SquirrelGod 2:99b1cb0d9f5e 34 public:
SquirrelGod 2:99b1cb0d9f5e 35
SquirrelGod 2:99b1cb0d9f5e 36 /* Constructor FileSystemLike
SquirrelGod 2:99b1cb0d9f5e 37 *
SquirrelGod 2:99b1cb0d9f5e 38 * Variables
SquirrelGod 2:99b1cb0d9f5e 39 * name - The name to use for the filesystem.
SquirrelGod 2:99b1cb0d9f5e 40 */
SquirrelGod 2:99b1cb0d9f5e 41 FileSystemLike(const char *name) : Base(name) {}
SquirrelGod 2:99b1cb0d9f5e 42
SquirrelGod 2:99b1cb0d9f5e 43 /* Function open
SquirrelGod 2:99b1cb0d9f5e 44 *
SquirrelGod 2:99b1cb0d9f5e 45 * Variables
SquirrelGod 2:99b1cb0d9f5e 46 * filename - The name of the file to open.
SquirrelGod 2:99b1cb0d9f5e 47 * flags - One of O_RDONLY, O_WRONLY, or O_RDWR, OR'd with
SquirrelGod 2:99b1cb0d9f5e 48 * zero or more of O_CREAT, O_TRUNC, or O_APPEND.
SquirrelGod 2:99b1cb0d9f5e 49 * returns - A pointer to a FileHandle object representing the
SquirrelGod 2:99b1cb0d9f5e 50 * file on success, or NULL on failure.
SquirrelGod 2:99b1cb0d9f5e 51 */
SquirrelGod 2:99b1cb0d9f5e 52 virtual FileHandle *open(const char *filename, int flags) = 0;
SquirrelGod 2:99b1cb0d9f5e 53
SquirrelGod 2:99b1cb0d9f5e 54 /* Function remove
SquirrelGod 2:99b1cb0d9f5e 55 * Remove a file from the filesystem.
SquirrelGod 2:99b1cb0d9f5e 56 *
SquirrelGod 2:99b1cb0d9f5e 57 * Variables
SquirrelGod 2:99b1cb0d9f5e 58 * filename - the name of the file to remove.
SquirrelGod 2:99b1cb0d9f5e 59 * returns - 0 on success, -1 on failure.
SquirrelGod 2:99b1cb0d9f5e 60 */
SquirrelGod 2:99b1cb0d9f5e 61 virtual int remove(const char *filename) { return -1; };
SquirrelGod 2:99b1cb0d9f5e 62
SquirrelGod 2:99b1cb0d9f5e 63 /* Function rename
SquirrelGod 2:99b1cb0d9f5e 64 * Rename a file in the filesystem.
SquirrelGod 2:99b1cb0d9f5e 65 *
SquirrelGod 2:99b1cb0d9f5e 66 * Variables
SquirrelGod 2:99b1cb0d9f5e 67 * oldname - the name of the file to rename.
SquirrelGod 2:99b1cb0d9f5e 68 * newname - the name to rename it to.
SquirrelGod 2:99b1cb0d9f5e 69 * returns - 0 on success, -1 on failure.
SquirrelGod 2:99b1cb0d9f5e 70 */
SquirrelGod 2:99b1cb0d9f5e 71 virtual int rename(const char *oldname, const char *newname) { return -1; };
SquirrelGod 2:99b1cb0d9f5e 72
SquirrelGod 2:99b1cb0d9f5e 73 /* Function opendir
SquirrelGod 2:99b1cb0d9f5e 74 * Opens a directory in the filesystem and returns a DirHandle
SquirrelGod 2:99b1cb0d9f5e 75 * representing the directory stream.
SquirrelGod 2:99b1cb0d9f5e 76 *
SquirrelGod 2:99b1cb0d9f5e 77 * Variables
SquirrelGod 2:99b1cb0d9f5e 78 * name - The name of the directory to open.
SquirrelGod 2:99b1cb0d9f5e 79 * returns - A DirHandle representing the directory stream, or
SquirrelGod 2:99b1cb0d9f5e 80 * NULL on failure.
SquirrelGod 2:99b1cb0d9f5e 81 */
SquirrelGod 2:99b1cb0d9f5e 82 virtual DirHandle *opendir(const char *name) { return NULL; };
SquirrelGod 2:99b1cb0d9f5e 83
SquirrelGod 2:99b1cb0d9f5e 84 /* Function mkdir
SquirrelGod 2:99b1cb0d9f5e 85 * Creates a directory in the filesystem.
SquirrelGod 2:99b1cb0d9f5e 86 *
SquirrelGod 2:99b1cb0d9f5e 87 * Variables
SquirrelGod 2:99b1cb0d9f5e 88 * name - The name of the directory to create.
SquirrelGod 2:99b1cb0d9f5e 89 * mode - The permissions to create the directory with.
SquirrelGod 2:99b1cb0d9f5e 90 * returns - 0 on success, -1 on failure.
SquirrelGod 2:99b1cb0d9f5e 91 */
SquirrelGod 2:99b1cb0d9f5e 92 virtual int mkdir(const char *name, mode_t mode) { return -1; }
SquirrelGod 2:99b1cb0d9f5e 93
SquirrelGod 2:99b1cb0d9f5e 94 // TODO other filesystem functions (mkdir, rm, rn, ls etc)
SquirrelGod 2:99b1cb0d9f5e 95
SquirrelGod 2:99b1cb0d9f5e 96 };
SquirrelGod 2:99b1cb0d9f5e 97
SquirrelGod 2:99b1cb0d9f5e 98 } // namespace mbed
SquirrelGod 2:99b1cb0d9f5e 99
SquirrelGod 2:99b1cb0d9f5e 100 #endif