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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

cpp/DirHandle.h@0:fd0d7bdfcdc2, 2012-11-20 (annotated)

Committer:
mbed_official
Date:
Tue Nov 20 17:24:08 2012 +0000
Revision:
0:fd0d7bdfcdc2
Child:
2:143cac498751
mbed sources

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
mbed_official 0:fd0d7bdfcdc2 2 * Copyright (c) 2006-2012 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
mbed_official 0:fd0d7bdfcdc2 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mbed_official 0:fd0d7bdfcdc2 5 * of this software and associated documentation files (the "Software"), to deal
mbed_official 0:fd0d7bdfcdc2 6 * in the Software without restriction, including without limitation the rights
mbed_official 0:fd0d7bdfcdc2 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbed_official 0:fd0d7bdfcdc2 8 * copies of the Software, and to permit persons to whom the Software is
mbed_official 0:fd0d7bdfcdc2 9 * furnished to do so, subject to the following conditions:
mbed_official 0:fd0d7bdfcdc2 10 *
mbed_official 0:fd0d7bdfcdc2 11 * The above copyright notice and this permission notice shall be included in
mbed_official 0:fd0d7bdfcdc2 12 * all copies or substantial portions of the Software.
mbed_official 0:fd0d7bdfcdc2 13 *
mbed_official 0:fd0d7bdfcdc2 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbed_official 0:fd0d7bdfcdc2 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbed_official 0:fd0d7bdfcdc2 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbed_official 0:fd0d7bdfcdc2 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbed_official 0:fd0d7bdfcdc2 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed_official 0:fd0d7bdfcdc2 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mbed_official 0:fd0d7bdfcdc2 20 * SOFTWARE.
mbed_official 0:fd0d7bdfcdc2 21 */
mbed_official 0:fd0d7bdfcdc2 22 #ifndef MBED_DIRHANDLE_H
mbed_official 0:fd0d7bdfcdc2 23 #define MBED_DIRHANDLE_H
mbed_official 0:fd0d7bdfcdc2 24
mbed_official 0:fd0d7bdfcdc2 25 #ifdef __ARMCC_VERSION
mbed_official 0:fd0d7bdfcdc2 26 # define NAME_MAX 255
mbed_official 0:fd0d7bdfcdc2 27 typedef int mode_t;
mbed_official 0:fd0d7bdfcdc2 28 #else
mbed_official 0:fd0d7bdfcdc2 29 # include <sys/syslimits.h>
mbed_official 0:fd0d7bdfcdc2 30 #endif
mbed_official 0:fd0d7bdfcdc2 31 #include "FileHandle.h"
mbed_official 0:fd0d7bdfcdc2 32
mbed_official 0:fd0d7bdfcdc2 33 struct dirent {
mbed_official 0:fd0d7bdfcdc2 34 char d_name[NAME_MAX+1];
mbed_official 0:fd0d7bdfcdc2 35 };
mbed_official 0:fd0d7bdfcdc2 36
mbed_official 0:fd0d7bdfcdc2 37 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 38
mbed_official 0:fd0d7bdfcdc2 39 /** Represents a directory stream. Objects of this type are returned
mbed_official 0:fd0d7bdfcdc2 40 * by a FileSystemLike's opendir method. Implementations must define
mbed_official 0:fd0d7bdfcdc2 41 * at least closedir, readdir and rewinddir.
mbed_official 0:fd0d7bdfcdc2 42 *
mbed_official 0:fd0d7bdfcdc2 43 * If a FileSystemLike class defines the opendir method, then the
mbed_official 0:fd0d7bdfcdc2 44 * directories of an object of that type can be accessed by
mbed_official 0:fd0d7bdfcdc2 45 * DIR *d = opendir("/example/directory") (or opendir("/example")
mbed_official 0:fd0d7bdfcdc2 46 * to open the root of the filesystem), and then using readdir(d) etc.
mbed_official 0:fd0d7bdfcdc2 47 *
mbed_official 0:fd0d7bdfcdc2 48 * The root directory is considered to contain all FileLike and
mbed_official 0:fd0d7bdfcdc2 49 * FileSystemLike objects, so the DIR* returned by opendir("/") will
mbed_official 0:fd0d7bdfcdc2 50 * reflect this.
mbed_official 0:fd0d7bdfcdc2 51 */
mbed_official 0:fd0d7bdfcdc2 52 class DirHandle {
mbed_official 0:fd0d7bdfcdc2 53
mbed_official 0:fd0d7bdfcdc2 54 public:
mbed_official 0:fd0d7bdfcdc2 55 /** Closes the directory.
mbed_official 0:fd0d7bdfcdc2 56 *
mbed_official 0:fd0d7bdfcdc2 57 * @returns
mbed_official 0:fd0d7bdfcdc2 58 * 0 on success,
mbed_official 0:fd0d7bdfcdc2 59 * -1 on error.
mbed_official 0:fd0d7bdfcdc2 60 */
mbed_official 0:fd0d7bdfcdc2 61 virtual int closedir()=0;
mbed_official 0:fd0d7bdfcdc2 62
mbed_official 0:fd0d7bdfcdc2 63 /** Return the directory entry at the current position, and
mbed_official 0:fd0d7bdfcdc2 64 * advances the position to the next entry.
mbed_official 0:fd0d7bdfcdc2 65 *
mbed_official 0:fd0d7bdfcdc2 66 * @returns
mbed_official 0:fd0d7bdfcdc2 67 * A pointer to a dirent structure representing the
mbed_official 0:fd0d7bdfcdc2 68 * directory entry at the current position, or NULL on reaching
mbed_official 0:fd0d7bdfcdc2 69 * end of directory or error.
mbed_official 0:fd0d7bdfcdc2 70 */
mbed_official 0:fd0d7bdfcdc2 71 virtual struct dirent *readdir()=0;
mbed_official 0:fd0d7bdfcdc2 72
mbed_official 0:fd0d7bdfcdc2 73 /** Resets the position to the beginning of the directory.
mbed_official 0:fd0d7bdfcdc2 74 */
mbed_official 0:fd0d7bdfcdc2 75 virtual void rewinddir()=0;
mbed_official 0:fd0d7bdfcdc2 76
mbed_official 0:fd0d7bdfcdc2 77 /** Returns the current position of the DirHandle.
mbed_official 0:fd0d7bdfcdc2 78 *
mbed_official 0:fd0d7bdfcdc2 79 * @returns
mbed_official 0:fd0d7bdfcdc2 80 * the current position,
mbed_official 0:fd0d7bdfcdc2 81 * -1 on error.
mbed_official 0:fd0d7bdfcdc2 82 */
mbed_official 0:fd0d7bdfcdc2 83 virtual off_t telldir() { return -1; }
mbed_official 0:fd0d7bdfcdc2 84
mbed_official 0:fd0d7bdfcdc2 85 /** Sets the position of the DirHandle.
mbed_official 0:fd0d7bdfcdc2 86 *
mbed_official 0:fd0d7bdfcdc2 87 * @param location The location to seek to. Must be a value returned by telldir.
mbed_official 0:fd0d7bdfcdc2 88 */
mbed_official 0:fd0d7bdfcdc2 89 virtual void seekdir(off_t location) { }
mbed_official 0:fd0d7bdfcdc2 90
mbed_official 0:fd0d7bdfcdc2 91 virtual ~DirHandle() {}
mbed_official 0:fd0d7bdfcdc2 92 };
mbed_official 0:fd0d7bdfcdc2 93
mbed_official 0:fd0d7bdfcdc2 94 } // namespace mbed
mbed_official 0:fd0d7bdfcdc2 95
mbed_official 0:fd0d7bdfcdc2 96 typedef mbed::DirHandle DIR;
mbed_official 0:fd0d7bdfcdc2 97
mbed_official 0:fd0d7bdfcdc2 98 extern "C" {
mbed_official 0:fd0d7bdfcdc2 99 DIR *opendir(const char*);
mbed_official 0:fd0d7bdfcdc2 100 struct dirent *readdir(DIR *);
mbed_official 0:fd0d7bdfcdc2 101 int closedir(DIR*);
mbed_official 0:fd0d7bdfcdc2 102 void rewinddir(DIR*);
mbed_official 0:fd0d7bdfcdc2 103 long telldir(DIR*);
mbed_official 0:fd0d7bdfcdc2 104 void seekdir(DIR*, long);
mbed_official 0:fd0d7bdfcdc2 105 int mkdir(const char *name, mode_t n);
mbed_official 0:fd0d7bdfcdc2 106 };
mbed_official 0:fd0d7bdfcdc2 107
mbed_official 0:fd0d7bdfcdc2 108 #endif /* MBED_DIRHANDLE_H */