wanjun chen / Mbed 2 deprecated Nucleo_BLE_Demo

IOTIO

Dependencies:   Nucleo_BLE_API_IOTIO Nucleo_BLE_BlueNRG Nucleo_BLE_DemoApp Nucleo_Sensor_Shield mbed

Dependents:   Nucleo_BLE_Demo_IOTIO

Fork of Nucleo_BLE_Demo by Cortex Challenge Team

mbed/LocalFileSystem.h@1:4bdfa7d7e8bf, 2016-10-29 (annotated)

Committer:
16038618
Date:
Sat Oct 29 15:11:28 2016 +0000
Revision:
1:4bdfa7d7e8bf
IOTIO

Who changed what in which revision?

UserRevisionLine numberNew contents of line
16038618 1:4bdfa7d7e8bf 1 /* mbed Microcontroller Library
16038618 1:4bdfa7d7e8bf 2 * Copyright (c) 2006-2013 ARM Limited
16038618 1:4bdfa7d7e8bf 3 *
16038618 1:4bdfa7d7e8bf 4 * Licensed under the Apache License, Version 2.0 (the "License");
16038618 1:4bdfa7d7e8bf 5 * you may not use this file except in compliance with the License.
16038618 1:4bdfa7d7e8bf 6 * You may obtain a copy of the License at
16038618 1:4bdfa7d7e8bf 7 *
16038618 1:4bdfa7d7e8bf 8 * http://www.apache.org/licenses/LICENSE-2.0
16038618 1:4bdfa7d7e8bf 9 *
16038618 1:4bdfa7d7e8bf 10 * Unless required by applicable law or agreed to in writing, software
16038618 1:4bdfa7d7e8bf 11 * distributed under the License is distributed on an "AS IS" BASIS,
16038618 1:4bdfa7d7e8bf 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16038618 1:4bdfa7d7e8bf 13 * See the License for the specific language governing permissions and
16038618 1:4bdfa7d7e8bf 14 * limitations under the License.
16038618 1:4bdfa7d7e8bf 15 */
16038618 1:4bdfa7d7e8bf 16 #ifndef MBED_LOCALFILESYSTEM_H
16038618 1:4bdfa7d7e8bf 17 #define MBED_LOCALFILESYSTEM_H
16038618 1:4bdfa7d7e8bf 18
16038618 1:4bdfa7d7e8bf 19 #include "platform.h"
16038618 1:4bdfa7d7e8bf 20
16038618 1:4bdfa7d7e8bf 21 #if DEVICE_LOCALFILESYSTEM
16038618 1:4bdfa7d7e8bf 22
16038618 1:4bdfa7d7e8bf 23 #include "FileSystemLike.h"
16038618 1:4bdfa7d7e8bf 24
16038618 1:4bdfa7d7e8bf 25 namespace mbed {
16038618 1:4bdfa7d7e8bf 26
16038618 1:4bdfa7d7e8bf 27 FILEHANDLE local_file_open(const char* name, int flags);
16038618 1:4bdfa7d7e8bf 28
16038618 1:4bdfa7d7e8bf 29 class LocalFileHandle : public FileHandle {
16038618 1:4bdfa7d7e8bf 30
16038618 1:4bdfa7d7e8bf 31 public:
16038618 1:4bdfa7d7e8bf 32 LocalFileHandle(FILEHANDLE fh);
16038618 1:4bdfa7d7e8bf 33
16038618 1:4bdfa7d7e8bf 34 virtual int close();
16038618 1:4bdfa7d7e8bf 35
16038618 1:4bdfa7d7e8bf 36 virtual ssize_t write(const void *buffer, size_t length);
16038618 1:4bdfa7d7e8bf 37
16038618 1:4bdfa7d7e8bf 38 virtual ssize_t read(void *buffer, size_t length);
16038618 1:4bdfa7d7e8bf 39
16038618 1:4bdfa7d7e8bf 40 virtual int isatty();
16038618 1:4bdfa7d7e8bf 41
16038618 1:4bdfa7d7e8bf 42 virtual off_t lseek(off_t position, int whence);
16038618 1:4bdfa7d7e8bf 43
16038618 1:4bdfa7d7e8bf 44 virtual int fsync();
16038618 1:4bdfa7d7e8bf 45
16038618 1:4bdfa7d7e8bf 46 virtual off_t flen();
16038618 1:4bdfa7d7e8bf 47
16038618 1:4bdfa7d7e8bf 48 protected:
16038618 1:4bdfa7d7e8bf 49 FILEHANDLE _fh;
16038618 1:4bdfa7d7e8bf 50 int pos;
16038618 1:4bdfa7d7e8bf 51 };
16038618 1:4bdfa7d7e8bf 52
16038618 1:4bdfa7d7e8bf 53 /** A filesystem for accessing the local mbed Microcontroller USB disk drive
16038618 1:4bdfa7d7e8bf 54 *
16038618 1:4bdfa7d7e8bf 55 * This allows programs to read and write files on the same disk drive that is used to program the
16038618 1:4bdfa7d7e8bf 56 * mbed Microcontroller. Once created, the standard C file access functions are used to open,
16038618 1:4bdfa7d7e8bf 57 * read and write files.
16038618 1:4bdfa7d7e8bf 58 *
16038618 1:4bdfa7d7e8bf 59 * Example:
16038618 1:4bdfa7d7e8bf 60 * @code
16038618 1:4bdfa7d7e8bf 61 * #include "mbed.h"
16038618 1:4bdfa7d7e8bf 62 *
16038618 1:4bdfa7d7e8bf 63 * LocalFileSystem local("local"); // Create the local filesystem under the name "local"
16038618 1:4bdfa7d7e8bf 64 *
16038618 1:4bdfa7d7e8bf 65 * int main() {
16038618 1:4bdfa7d7e8bf 66 * FILE *fp = fopen("/local/out.txt", "w"); // Open "out.txt" on the local file system for writing
16038618 1:4bdfa7d7e8bf 67 * fprintf(fp, "Hello World!");
16038618 1:4bdfa7d7e8bf 68 * fclose(fp);
16038618 1:4bdfa7d7e8bf 69 * remove("/local/out.txt"); // Removes the file "out.txt" from the local file system
16038618 1:4bdfa7d7e8bf 70 *
16038618 1:4bdfa7d7e8bf 71 * DIR *d = opendir("/local"); // Opens the root directory of the local file system
16038618 1:4bdfa7d7e8bf 72 * struct dirent *p;
16038618 1:4bdfa7d7e8bf 73 * while((p = readdir(d)) != NULL) { // Print the names of the files in the local file system
16038618 1:4bdfa7d7e8bf 74 * printf("%s\n", p->d_name); // to stdout.
16038618 1:4bdfa7d7e8bf 75 * }
16038618 1:4bdfa7d7e8bf 76 * closedir(d);
16038618 1:4bdfa7d7e8bf 77 * }
16038618 1:4bdfa7d7e8bf 78 * @endcode
16038618 1:4bdfa7d7e8bf 79 *
16038618 1:4bdfa7d7e8bf 80 * @note
16038618 1:4bdfa7d7e8bf 81 * If the microcontroller program makes an access to the local drive, it will be marked as "removed"
16038618 1:4bdfa7d7e8bf 82 * on the Host computer. This means it is no longer accessible from the Host Computer.
16038618 1:4bdfa7d7e8bf 83 *
16038618 1:4bdfa7d7e8bf 84 * The drive will only re-appear when the microcontroller program exists. Note that if the program does
16038618 1:4bdfa7d7e8bf 85 * not exit, you will need to hold down reset on the mbed Microcontroller to be able to see the drive again!
16038618 1:4bdfa7d7e8bf 86 */
16038618 1:4bdfa7d7e8bf 87 class LocalFileSystem : public FileSystemLike {
16038618 1:4bdfa7d7e8bf 88
16038618 1:4bdfa7d7e8bf 89 public:
16038618 1:4bdfa7d7e8bf 90 LocalFileSystem(const char* n) : FileSystemLike(n) {
16038618 1:4bdfa7d7e8bf 91
16038618 1:4bdfa7d7e8bf 92 }
16038618 1:4bdfa7d7e8bf 93
16038618 1:4bdfa7d7e8bf 94 virtual FileHandle *open(const char* name, int flags);
16038618 1:4bdfa7d7e8bf 95 virtual int remove(const char *filename);
16038618 1:4bdfa7d7e8bf 96 virtual DirHandle *opendir(const char *name);
16038618 1:4bdfa7d7e8bf 97 };
16038618 1:4bdfa7d7e8bf 98
16038618 1:4bdfa7d7e8bf 99 } // namespace mbed
16038618 1:4bdfa7d7e8bf 100
16038618 1:4bdfa7d7e8bf 101 #endif
16038618 1:4bdfa7d7e8bf 102
16038618 1:4bdfa7d7e8bf 103 #endif