mbed library sources change for ST sensors and ST BLE
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Diff: api/LocalFileSystem.h
- Revision:
- 9:0ce32e54c9a7
- Parent:
- 2:143cac498751
- Child:
- 10:3bc89ef62ce7
diff -r 4e25b8576136 -r 0ce32e54c9a7 api/LocalFileSystem.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/api/LocalFileSystem.h Mon Jun 10 16:03:00 2013 +0100 @@ -0,0 +1,103 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_LOCALFILESYSTEM_H +#define MBED_LOCALFILESYSTEM_H + +#include "platform.h" + +#if DEVICE_LOCALFILESYSTEM + +#include "FileSystemLike.h" + +namespace mbed { + +FILEHANDLE local_file_open(const char* name, int flags); + +class LocalFileHandle : public FileHandle { + +public: + LocalFileHandle(FILEHANDLE fh); + + virtual int close(); + + virtual ssize_t write(const void *buffer, size_t length); + + virtual ssize_t read(void *buffer, size_t length); + + virtual int isatty(); + + virtual off_t lseek(off_t position, int whence); + + virtual int fsync(); + + virtual off_t flen(); + +protected: + FILEHANDLE _fh; + int pos; +}; + +/** A filesystem for accessing the local mbed Microcontroller USB disk drive + * + * This allows programs to read and write files on the same disk drive that is used to program the + * mbed Microcontroller. Once created, the standard C file access functions are used to open, + * read and write files. + * + * Example: + * @code + * #include "mbed.h" + * + * LocalFileSystem local("local"); // Create the local filesystem under the name "local" + * + * int main() { + * FILE *fp = fopen("/local/out.txt", "w"); // Open "out.txt" on the local file system for writing + * fprintf(fp, "Hello World!"); + * fclose(fp); + * remove("/local/out.txt"); // Removes the file "out.txt" from the local file system + * + * DIR *d = opendir("/local"); // Opens the root directory of the local file system + * struct dirent *p; + * while((p = readdir(d)) != NULL) { // Print the names of the files in the local file system + * printf("%s\n", p->d_name); // to stdout. + * } + * closedir(d); + * } + * @endcode + * + * @note + * If the microcontroller program makes an access to the local drive, it will be marked as "removed" + * on the Host computer. This means it is no longer accessible from the Host Computer. + * + * The drive will only re-appear when the microcontroller program exists. Note that if the program does + * not exit, you will need to hold down reset on the mbed Microcontroller to be able to see the drive again! + */ +class LocalFileSystem : public FileSystemLike { + +public: + LocalFileSystem(const char* n) : FileSystemLike(n) { + + } + + virtual FileHandle *open(const char* name, int flags); + virtual int remove(const char *filename); + virtual DirHandle *opendir(const char *name); +}; + +} // namespace mbed + +#endif + +#endif