config AX12
Fork of configure_ax12_test_bras_module by
mbed/DirHandle.h@2:91b6646ea994, 2017-02-01 (annotated)
- Committer:
- clementlignie
- Date:
- Wed Feb 01 13:42:30 2017 +0000
- Revision:
- 2:91b6646ea994
- Parent:
- 0:c03cffe402df
config AX12
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
slowness | 0:c03cffe402df | 1 | /* mbed Microcontroller Library - DirHandler |
slowness | 0:c03cffe402df | 2 | * Copyright (c) 2008-2009 ARM Limited. All rights reserved. |
slowness | 0:c03cffe402df | 3 | */ |
slowness | 0:c03cffe402df | 4 | |
slowness | 0:c03cffe402df | 5 | #ifndef MBED_DIRHANDLE_H |
slowness | 0:c03cffe402df | 6 | #define MBED_DIRHANDLE_H |
slowness | 0:c03cffe402df | 7 | |
slowness | 0:c03cffe402df | 8 | #ifdef __ARMCC_VERSION |
slowness | 0:c03cffe402df | 9 | # define NAME_MAX 255 |
slowness | 0:c03cffe402df | 10 | typedef int mode_t; |
slowness | 0:c03cffe402df | 11 | #else |
slowness | 0:c03cffe402df | 12 | # include <sys/syslimits.h> |
slowness | 0:c03cffe402df | 13 | #endif |
slowness | 0:c03cffe402df | 14 | #include "FileHandle.h" |
slowness | 0:c03cffe402df | 15 | |
slowness | 0:c03cffe402df | 16 | struct dirent { |
slowness | 0:c03cffe402df | 17 | char d_name[NAME_MAX+1]; |
slowness | 0:c03cffe402df | 18 | }; |
slowness | 0:c03cffe402df | 19 | |
slowness | 0:c03cffe402df | 20 | namespace mbed { |
slowness | 0:c03cffe402df | 21 | |
slowness | 0:c03cffe402df | 22 | /* Class DirHandle |
slowness | 0:c03cffe402df | 23 | * Represents a directory stream. Objects of this type are returned |
slowness | 0:c03cffe402df | 24 | * by a FileSystemLike's opendir method. Implementations must define |
slowness | 0:c03cffe402df | 25 | * at least closedir, readdir and rewinddir. |
slowness | 0:c03cffe402df | 26 | * |
slowness | 0:c03cffe402df | 27 | * If a FileSystemLike class defines the opendir method, then the |
slowness | 0:c03cffe402df | 28 | * directories of an object of that type can be accessed by |
slowness | 0:c03cffe402df | 29 | * DIR *d = opendir("/example/directory") (or opendir("/example") |
slowness | 0:c03cffe402df | 30 | * to open the root of the filesystem), and then using readdir(d) etc. |
slowness | 0:c03cffe402df | 31 | * |
slowness | 0:c03cffe402df | 32 | * The root directory is considered to contain all FileLike and |
slowness | 0:c03cffe402df | 33 | * FileSystemLike objects, so the DIR* returned by opendir("/") will |
slowness | 0:c03cffe402df | 34 | * reflect this. |
slowness | 0:c03cffe402df | 35 | */ |
slowness | 0:c03cffe402df | 36 | class DirHandle { |
slowness | 0:c03cffe402df | 37 | |
slowness | 0:c03cffe402df | 38 | public: |
slowness | 0:c03cffe402df | 39 | /* Function closedir |
slowness | 0:c03cffe402df | 40 | * Closes the directory. |
slowness | 0:c03cffe402df | 41 | * |
slowness | 0:c03cffe402df | 42 | * Variables |
slowness | 0:c03cffe402df | 43 | * returns - 0 on success, or -1 on error. |
slowness | 0:c03cffe402df | 44 | */ |
slowness | 0:c03cffe402df | 45 | virtual int closedir()=0; |
slowness | 0:c03cffe402df | 46 | |
slowness | 0:c03cffe402df | 47 | /* Function readdir |
slowness | 0:c03cffe402df | 48 | * Return the directory entry at the current position, and |
slowness | 0:c03cffe402df | 49 | * advances the position to the next entry. |
slowness | 0:c03cffe402df | 50 | * |
slowness | 0:c03cffe402df | 51 | * Returns |
slowness | 0:c03cffe402df | 52 | * A pointer to a dirent structure representing the |
slowness | 0:c03cffe402df | 53 | * directory entry at the current position, or NULL on reaching |
slowness | 0:c03cffe402df | 54 | * end of directory or error. |
slowness | 0:c03cffe402df | 55 | */ |
slowness | 0:c03cffe402df | 56 | virtual struct dirent *readdir()=0; |
slowness | 0:c03cffe402df | 57 | |
slowness | 0:c03cffe402df | 58 | /* Function rewinddir |
slowness | 0:c03cffe402df | 59 | * Resets the position to the beginning of the directory. |
slowness | 0:c03cffe402df | 60 | */ |
slowness | 0:c03cffe402df | 61 | virtual void rewinddir()=0; |
slowness | 0:c03cffe402df | 62 | |
slowness | 0:c03cffe402df | 63 | /* Function telldir |
slowness | 0:c03cffe402df | 64 | * Returns the current position of the DirHandle. |
slowness | 0:c03cffe402df | 65 | * |
slowness | 0:c03cffe402df | 66 | * Returns |
slowness | 0:c03cffe402df | 67 | * The current position, or -1 on error. |
slowness | 0:c03cffe402df | 68 | */ |
slowness | 0:c03cffe402df | 69 | virtual off_t telldir() { return -1; } |
slowness | 0:c03cffe402df | 70 | |
slowness | 0:c03cffe402df | 71 | /* Function seekdir |
slowness | 0:c03cffe402df | 72 | * Sets the position of the DirHandle. |
slowness | 0:c03cffe402df | 73 | * |
slowness | 0:c03cffe402df | 74 | * Variables |
slowness | 0:c03cffe402df | 75 | * location - The location to seek to. Must be a value returned |
slowness | 0:c03cffe402df | 76 | * by telldir. |
slowness | 0:c03cffe402df | 77 | */ |
slowness | 0:c03cffe402df | 78 | virtual void seekdir(off_t location) { } |
slowness | 0:c03cffe402df | 79 | |
slowness | 0:c03cffe402df | 80 | }; |
slowness | 0:c03cffe402df | 81 | |
slowness | 0:c03cffe402df | 82 | } // namespace mbed |
slowness | 0:c03cffe402df | 83 | |
slowness | 0:c03cffe402df | 84 | typedef mbed::DirHandle DIR; |
slowness | 0:c03cffe402df | 85 | |
slowness | 0:c03cffe402df | 86 | extern "C" { |
slowness | 0:c03cffe402df | 87 | DIR *opendir(const char*); |
slowness | 0:c03cffe402df | 88 | struct dirent *readdir(DIR *); |
slowness | 0:c03cffe402df | 89 | int closedir(DIR*); |
slowness | 0:c03cffe402df | 90 | void rewinddir(DIR*); |
slowness | 0:c03cffe402df | 91 | long telldir(DIR*); |
slowness | 0:c03cffe402df | 92 | void seekdir(DIR*, long); |
slowness | 0:c03cffe402df | 93 | int mkdir(const char *name, mode_t n); |
slowness | 0:c03cffe402df | 94 | }; |
slowness | 0:c03cffe402df | 95 | |
slowness | 0:c03cffe402df | 96 | #endif /* MBED_DIRHANDLE_H */ |