mouvement AX12 petit robot version 2
Fork of command_AX12_petit_robot_v2 by
mbed/DirHandle.h
- Committer:
- SquirrelGod
- Date:
- 2017-04-18
- Revision:
- 2:99b1cb0d9f5e
File content as of revision 2:99b1cb0d9f5e:
/* mbed Microcontroller Library - DirHandler * Copyright (c) 2008-2009 ARM Limited. All rights reserved. */ #ifndef MBED_DIRHANDLE_H #define MBED_DIRHANDLE_H #ifdef __ARMCC_VERSION # define NAME_MAX 255 typedef int mode_t; #else # include <sys/syslimits.h> #endif #include "FileHandle.h" struct dirent { char d_name[NAME_MAX+1]; }; namespace mbed { /* Class DirHandle * Represents a directory stream. Objects of this type are returned * by a FileSystemLike's opendir method. Implementations must define * at least closedir, readdir and rewinddir. * * If a FileSystemLike class defines the opendir method, then the * directories of an object of that type can be accessed by * DIR *d = opendir("/example/directory") (or opendir("/example") * to open the root of the filesystem), and then using readdir(d) etc. * * The root directory is considered to contain all FileLike and * FileSystemLike objects, so the DIR* returned by opendir("/") will * reflect this. */ class DirHandle { public: /* Function closedir * Closes the directory. * * Variables * returns - 0 on success, or -1 on error. */ virtual int closedir()=0; /* Function readdir * Return the directory entry at the current position, and * advances the position to the next entry. * * Returns * A pointer to a dirent structure representing the * directory entry at the current position, or NULL on reaching * end of directory or error. */ virtual struct dirent *readdir()=0; /* Function rewinddir * Resets the position to the beginning of the directory. */ virtual void rewinddir()=0; /* Function telldir * Returns the current position of the DirHandle. * * Returns * The current position, or -1 on error. */ virtual off_t telldir() { return -1; } /* Function seekdir * Sets the position of the DirHandle. * * Variables * location - The location to seek to. Must be a value returned * by telldir. */ virtual void seekdir(off_t location) { } }; } // namespace mbed typedef mbed::DirHandle DIR; extern "C" { DIR *opendir(const char*); struct dirent *readdir(DIR *); int closedir(DIR*); void rewinddir(DIR*); long telldir(DIR*); void seekdir(DIR*, long); int mkdir(const char *name, mode_t n); }; #endif /* MBED_DIRHANDLE_H */