Руслан Бредун / Mbed 2 deprecated stm32-sensor-base2

test

Dependencies:   mbed Watchdog

Dependents:   STM32-MC_node

mbed/LocalFileSystem.h@0:d383e2dee0f7, 2020-07-06 (annotated)

Committer:
ommpy
Date:
Mon Jul 06 17:18:59 2020 +0530
Revision:
0:d383e2dee0f7
first commit

Who changed what in which revision?

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ommpy 0:d383e2dee0f7 1 /* mbed Microcontroller Library
ommpy 0:d383e2dee0f7 2 * Copyright (c) 2006-2013 ARM Limited
ommpy 0:d383e2dee0f7 3 *
ommpy 0:d383e2dee0f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
ommpy 0:d383e2dee0f7 5 * you may not use this file except in compliance with the License.
ommpy 0:d383e2dee0f7 6 * You may obtain a copy of the License at
ommpy 0:d383e2dee0f7 7 *
ommpy 0:d383e2dee0f7 8 * http://www.apache.org/licenses/LICENSE-2.0
ommpy 0:d383e2dee0f7 9 *
ommpy 0:d383e2dee0f7 10 * Unless required by applicable law or agreed to in writing, software
ommpy 0:d383e2dee0f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
ommpy 0:d383e2dee0f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ommpy 0:d383e2dee0f7 13 * See the License for the specific language governing permissions and
ommpy 0:d383e2dee0f7 14 * limitations under the License.
ommpy 0:d383e2dee0f7 15 */
ommpy 0:d383e2dee0f7 16 #ifndef MBED_LOCALFILESYSTEM_H
ommpy 0:d383e2dee0f7 17 #define MBED_LOCALFILESYSTEM_H
ommpy 0:d383e2dee0f7 18
ommpy 0:d383e2dee0f7 19 #include "platform.h"
ommpy 0:d383e2dee0f7 20
ommpy 0:d383e2dee0f7 21 #if DEVICE_LOCALFILESYSTEM
ommpy 0:d383e2dee0f7 22
ommpy 0:d383e2dee0f7 23 #include "FileSystemLike.h"
ommpy 0:d383e2dee0f7 24
ommpy 0:d383e2dee0f7 25 namespace mbed {
ommpy 0:d383e2dee0f7 26
ommpy 0:d383e2dee0f7 27 FILEHANDLE local_file_open(const char* name, int flags);
ommpy 0:d383e2dee0f7 28
ommpy 0:d383e2dee0f7 29 class LocalFileHandle : public FileHandle {
ommpy 0:d383e2dee0f7 30
ommpy 0:d383e2dee0f7 31 public:
ommpy 0:d383e2dee0f7 32 LocalFileHandle(FILEHANDLE fh);
ommpy 0:d383e2dee0f7 33
ommpy 0:d383e2dee0f7 34 virtual int close();
ommpy 0:d383e2dee0f7 35
ommpy 0:d383e2dee0f7 36 virtual ssize_t write(const void *buffer, size_t length);
ommpy 0:d383e2dee0f7 37
ommpy 0:d383e2dee0f7 38 virtual ssize_t read(void *buffer, size_t length);
ommpy 0:d383e2dee0f7 39
ommpy 0:d383e2dee0f7 40 virtual int isatty();
ommpy 0:d383e2dee0f7 41
ommpy 0:d383e2dee0f7 42 virtual off_t lseek(off_t position, int whence);
ommpy 0:d383e2dee0f7 43
ommpy 0:d383e2dee0f7 44 virtual int fsync();
ommpy 0:d383e2dee0f7 45
ommpy 0:d383e2dee0f7 46 virtual off_t flen();
ommpy 0:d383e2dee0f7 47
ommpy 0:d383e2dee0f7 48 protected:
ommpy 0:d383e2dee0f7 49 FILEHANDLE _fh;
ommpy 0:d383e2dee0f7 50 int pos;
ommpy 0:d383e2dee0f7 51 };
ommpy 0:d383e2dee0f7 52
ommpy 0:d383e2dee0f7 53 /** A filesystem for accessing the local mbed Microcontroller USB disk drive
ommpy 0:d383e2dee0f7 54 *
ommpy 0:d383e2dee0f7 55 * This allows programs to read and write files on the same disk drive that is used to program the
ommpy 0:d383e2dee0f7 56 * mbed Microcontroller. Once created, the standard C file access functions are used to open,
ommpy 0:d383e2dee0f7 57 * read and write files.
ommpy 0:d383e2dee0f7 58 *
ommpy 0:d383e2dee0f7 59 * Example:
ommpy 0:d383e2dee0f7 60 * @code
ommpy 0:d383e2dee0f7 61 * #include "mbed.h"
ommpy 0:d383e2dee0f7 62 *
ommpy 0:d383e2dee0f7 63 * LocalFileSystem local("local"); // Create the local filesystem under the name "local"
ommpy 0:d383e2dee0f7 64 *
ommpy 0:d383e2dee0f7 65 * int main() {
ommpy 0:d383e2dee0f7 66 * FILE *fp = fopen("/local/out.txt", "w"); // Open "out.txt" on the local file system for writing
ommpy 0:d383e2dee0f7 67 * fprintf(fp, "Hello World!");
ommpy 0:d383e2dee0f7 68 * fclose(fp);
ommpy 0:d383e2dee0f7 69 * remove("/local/out.txt"); // Removes the file "out.txt" from the local file system
ommpy 0:d383e2dee0f7 70 *
ommpy 0:d383e2dee0f7 71 * DIR *d = opendir("/local"); // Opens the root directory of the local file system
ommpy 0:d383e2dee0f7 72 * struct dirent *p;
ommpy 0:d383e2dee0f7 73 * while((p = readdir(d)) != NULL) { // Print the names of the files in the local file system
ommpy 0:d383e2dee0f7 74 * printf("%s\n", p->d_name); // to stdout.
ommpy 0:d383e2dee0f7 75 * }
ommpy 0:d383e2dee0f7 76 * closedir(d);
ommpy 0:d383e2dee0f7 77 * }
ommpy 0:d383e2dee0f7 78 * @endcode
ommpy 0:d383e2dee0f7 79 *
ommpy 0:d383e2dee0f7 80 * @note
ommpy 0:d383e2dee0f7 81 * If the microcontroller program makes an access to the local drive, it will be marked as "removed"
ommpy 0:d383e2dee0f7 82 * on the Host computer. This means it is no longer accessible from the Host Computer.
ommpy 0:d383e2dee0f7 83 *
ommpy 0:d383e2dee0f7 84 * The drive will only re-appear when the microcontroller program exists. Note that if the program does
ommpy 0:d383e2dee0f7 85 * not exit, you will need to hold down reset on the mbed Microcontroller to be able to see the drive again!
ommpy 0:d383e2dee0f7 86 */
ommpy 0:d383e2dee0f7 87 class LocalFileSystem : public FileSystemLike {
ommpy 0:d383e2dee0f7 88
ommpy 0:d383e2dee0f7 89 public:
ommpy 0:d383e2dee0f7 90 LocalFileSystem(const char* n) : FileSystemLike(n) {
ommpy 0:d383e2dee0f7 91
ommpy 0:d383e2dee0f7 92 }
ommpy 0:d383e2dee0f7 93
ommpy 0:d383e2dee0f7 94 virtual FileHandle *open(const char* name, int flags);
ommpy 0:d383e2dee0f7 95 virtual int remove(const char *filename);
ommpy 0:d383e2dee0f7 96 virtual DirHandle *opendir(const char *name);
ommpy 0:d383e2dee0f7 97 };
ommpy 0:d383e2dee0f7 98
ommpy 0:d383e2dee0f7 99 } // namespace mbed
ommpy 0:d383e2dee0f7 100
ommpy 0:d383e2dee0f7 101 #endif
ommpy 0:d383e2dee0f7 102
ommpy 0:d383e2dee0f7 103 #endif