CRAC Team / Utilisatio_MX12_V2

Programme d'utilisation des AX12 avec rajout de l'MX12

Fork of test_carteAToutFaire_PR by CRAC Team

mbed/LocalFileSystem.h@1:f3f702086a30, 2017-05-11 (annotated)

Committer:
ClementBreteau
Date:
Thu May 11 11:49:50 2017 +0000
Revision:
1:f3f702086a30
test de la carte ? tout faire du petit robot

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ClementBreteau 1:f3f702086a30 1 /* mbed Microcontroller Library - LocalFileSystem
ClementBreteau 1:f3f702086a30 2 * Copyright (c) 2008-2009 ARM Limited. All rights reserved.
ClementBreteau 1:f3f702086a30 3 */
ClementBreteau 1:f3f702086a30 4
ClementBreteau 1:f3f702086a30 5 #ifndef MBED_LOCALFILESYSTEM_H
ClementBreteau 1:f3f702086a30 6 #define MBED_LOCALFILESYSTEM_H
ClementBreteau 1:f3f702086a30 7
ClementBreteau 1:f3f702086a30 8 #include "FileSystemLike.h"
ClementBreteau 1:f3f702086a30 9
ClementBreteau 1:f3f702086a30 10 namespace mbed {
ClementBreteau 1:f3f702086a30 11
ClementBreteau 1:f3f702086a30 12 FILEHANDLE local_file_open(const char* name, int flags);
ClementBreteau 1:f3f702086a30 13
ClementBreteau 1:f3f702086a30 14 class LocalFileHandle : public FileHandle {
ClementBreteau 1:f3f702086a30 15
ClementBreteau 1:f3f702086a30 16 public:
ClementBreteau 1:f3f702086a30 17 LocalFileHandle(FILEHANDLE fh);
ClementBreteau 1:f3f702086a30 18
ClementBreteau 1:f3f702086a30 19 virtual int close();
ClementBreteau 1:f3f702086a30 20
ClementBreteau 1:f3f702086a30 21 virtual ssize_t write(const void *buffer, size_t length);
ClementBreteau 1:f3f702086a30 22
ClementBreteau 1:f3f702086a30 23 virtual ssize_t read(void *buffer, size_t length);
ClementBreteau 1:f3f702086a30 24
ClementBreteau 1:f3f702086a30 25 virtual int isatty();
ClementBreteau 1:f3f702086a30 26
ClementBreteau 1:f3f702086a30 27 virtual off_t lseek(off_t position, int whence);
ClementBreteau 1:f3f702086a30 28
ClementBreteau 1:f3f702086a30 29 virtual int fsync();
ClementBreteau 1:f3f702086a30 30
ClementBreteau 1:f3f702086a30 31 virtual off_t flen();
ClementBreteau 1:f3f702086a30 32
ClementBreteau 1:f3f702086a30 33 protected:
ClementBreteau 1:f3f702086a30 34 FILEHANDLE _fh;
ClementBreteau 1:f3f702086a30 35 int pos;
ClementBreteau 1:f3f702086a30 36 };
ClementBreteau 1:f3f702086a30 37
ClementBreteau 1:f3f702086a30 38 /* Class: LocalFileSystem
ClementBreteau 1:f3f702086a30 39 * A filesystem for accessing the local mbed Microcontroller USB disk drive
ClementBreteau 1:f3f702086a30 40 *
ClementBreteau 1:f3f702086a30 41 * This allows programs to read and write files on the same disk drive that is used to program the
ClementBreteau 1:f3f702086a30 42 * mbed Microcontroller. Once created, the standard C file access functions are used to open,
ClementBreteau 1:f3f702086a30 43 * read and write files.
ClementBreteau 1:f3f702086a30 44 *
ClementBreteau 1:f3f702086a30 45 * Example:
ClementBreteau 1:f3f702086a30 46 * > #include "mbed.h"
ClementBreteau 1:f3f702086a30 47 * >
ClementBreteau 1:f3f702086a30 48 * > LocalFileSystem local("local"); // Create the local filesystem under the name "local"
ClementBreteau 1:f3f702086a30 49 * >
ClementBreteau 1:f3f702086a30 50 * > int main() {
ClementBreteau 1:f3f702086a30 51 * > FILE *fp = fopen("/local/out.txt", "w"); // Open "out.txt" on the local file system for writing
ClementBreteau 1:f3f702086a30 52 * > fprintf(fp, "Hello World!");
ClementBreteau 1:f3f702086a30 53 * > fclose(fp);
ClementBreteau 1:f3f702086a30 54 * > remove("/local/out.txt"); // Removes the file "out.txt" from the local file system
ClementBreteau 1:f3f702086a30 55 * >
ClementBreteau 1:f3f702086a30 56 * > DIR *d = opendir("/local"); // Opens the root directory of the local file system
ClementBreteau 1:f3f702086a30 57 * > struct dirent *p;
ClementBreteau 1:f3f702086a30 58 * > while((p = readdir(d)) != NULL) { // Print the names of the files in the local file system
ClementBreteau 1:f3f702086a30 59 * > printf("%s\n", p->d_name); // to stdout.
ClementBreteau 1:f3f702086a30 60 * > }
ClementBreteau 1:f3f702086a30 61 * > closedir(d);
ClementBreteau 1:f3f702086a30 62 * > }
ClementBreteau 1:f3f702086a30 63 *
ClementBreteau 1:f3f702086a30 64 * Implementation Notes:
ClementBreteau 1:f3f702086a30 65 * If the microcontroller program makes an access to the local drive, it will be marked as "removed"
ClementBreteau 1:f3f702086a30 66 * on the Host computer. This means it is no longer accessible from the Host Computer.
ClementBreteau 1:f3f702086a30 67 *
ClementBreteau 1:f3f702086a30 68 * The drive will only re-appear when the microcontroller program exists. Note that if the program does
ClementBreteau 1:f3f702086a30 69 * not exit, you will need to hold down reset on the mbed Microcontroller to be able to see the drive again!
ClementBreteau 1:f3f702086a30 70 */
ClementBreteau 1:f3f702086a30 71 class LocalFileSystem : public FileSystemLike {
ClementBreteau 1:f3f702086a30 72
ClementBreteau 1:f3f702086a30 73 public:
ClementBreteau 1:f3f702086a30 74
ClementBreteau 1:f3f702086a30 75 LocalFileSystem(const char* n) : FileSystemLike(n) {
ClementBreteau 1:f3f702086a30 76
ClementBreteau 1:f3f702086a30 77 }
ClementBreteau 1:f3f702086a30 78
ClementBreteau 1:f3f702086a30 79 virtual FileHandle *open(const char* name, int flags);
ClementBreteau 1:f3f702086a30 80 virtual int remove(const char *filename);
ClementBreteau 1:f3f702086a30 81 virtual DirHandle *opendir(const char *name);
ClementBreteau 1:f3f702086a30 82 };
ClementBreteau 1:f3f702086a30 83
ClementBreteau 1:f3f702086a30 84 } // namespace mbed
ClementBreteau 1:f3f702086a30 85
ClementBreteau 1:f3f702086a30 86 #endif