Knight KE / Mbed OS Game_Master

游戏王对战板，目前code还是空的

mbed-os/platform/LocalFileSystem.h@0:9b3d4731edbb, 2018-06-21 (annotated)

Committer:
WFKnight
Date:
Thu Jun 21 13:51:43 2018 +0000
Revision:
0:9b3d4731edbb
UART, RTOS, LED

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WFKnight 0:9b3d4731edbb 1 /* mbed Microcontroller Library
WFKnight 0:9b3d4731edbb 2 * Copyright (c) 2006-2013 ARM Limited
WFKnight 0:9b3d4731edbb 3 *
WFKnight 0:9b3d4731edbb 4 * Licensed under the Apache License, Version 2.0 (the "License");
WFKnight 0:9b3d4731edbb 5 * you may not use this file except in compliance with the License.
WFKnight 0:9b3d4731edbb 6 * You may obtain a copy of the License at
WFKnight 0:9b3d4731edbb 7 *
WFKnight 0:9b3d4731edbb 8 * http://www.apache.org/licenses/LICENSE-2.0
WFKnight 0:9b3d4731edbb 9 *
WFKnight 0:9b3d4731edbb 10 * Unless required by applicable law or agreed to in writing, software
WFKnight 0:9b3d4731edbb 11 * distributed under the License is distributed on an "AS IS" BASIS,
WFKnight 0:9b3d4731edbb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
WFKnight 0:9b3d4731edbb 13 * See the License for the specific language governing permissions and
WFKnight 0:9b3d4731edbb 14 * limitations under the License.
WFKnight 0:9b3d4731edbb 15 */
WFKnight 0:9b3d4731edbb 16 #ifndef MBED_LOCALFILESYSTEM_H
WFKnight 0:9b3d4731edbb 17 #define MBED_LOCALFILESYSTEM_H
WFKnight 0:9b3d4731edbb 18
WFKnight 0:9b3d4731edbb 19 #include "platform/platform.h"
WFKnight 0:9b3d4731edbb 20
WFKnight 0:9b3d4731edbb 21 #if DEVICE_LOCALFILESYSTEM
WFKnight 0:9b3d4731edbb 22
WFKnight 0:9b3d4731edbb 23 #include "platform/FileSystemLike.h"
WFKnight 0:9b3d4731edbb 24 #include "platform/PlatformMutex.h"
WFKnight 0:9b3d4731edbb 25 #include "platform/NonCopyable.h"
WFKnight 0:9b3d4731edbb 26
WFKnight 0:9b3d4731edbb 27 namespace mbed {
WFKnight 0:9b3d4731edbb 28 /** \addtogroup platform */
WFKnight 0:9b3d4731edbb 29 /** @{*/
WFKnight 0:9b3d4731edbb 30 /**
WFKnight 0:9b3d4731edbb 31 * \defgroup platform_LocalFileSystem LocalFileSystem functions
WFKnight 0:9b3d4731edbb 32 * @{
WFKnight 0:9b3d4731edbb 33 */
WFKnight 0:9b3d4731edbb 34
WFKnight 0:9b3d4731edbb 35 FILEHANDLE local_file_open(const char* name, int flags);
WFKnight 0:9b3d4731edbb 36
WFKnight 0:9b3d4731edbb 37 /**
WFKnight 0:9b3d4731edbb 38 * @class LocalFileHandle
WFKnight 0:9b3d4731edbb 39 * @ingroup platform
WFKnight 0:9b3d4731edbb 40 */
WFKnight 0:9b3d4731edbb 41 class LocalFileHandle : public FileHandle, private NonCopyable<LocalFileHandle> {
WFKnight 0:9b3d4731edbb 42
WFKnight 0:9b3d4731edbb 43 public:
WFKnight 0:9b3d4731edbb 44 LocalFileHandle(FILEHANDLE fh);
WFKnight 0:9b3d4731edbb 45
WFKnight 0:9b3d4731edbb 46 virtual int close();
WFKnight 0:9b3d4731edbb 47
WFKnight 0:9b3d4731edbb 48 virtual ssize_t write(const void *buffer, size_t length);
WFKnight 0:9b3d4731edbb 49
WFKnight 0:9b3d4731edbb 50 virtual ssize_t read(void *buffer, size_t length);
WFKnight 0:9b3d4731edbb 51
WFKnight 0:9b3d4731edbb 52 virtual int isatty();
WFKnight 0:9b3d4731edbb 53
WFKnight 0:9b3d4731edbb 54 virtual off_t seek(off_t position, int whence);
WFKnight 0:9b3d4731edbb 55
WFKnight 0:9b3d4731edbb 56 virtual int sync();
WFKnight 0:9b3d4731edbb 57
WFKnight 0:9b3d4731edbb 58 virtual off_t size();
WFKnight 0:9b3d4731edbb 59
WFKnight 0:9b3d4731edbb 60 protected:
WFKnight 0:9b3d4731edbb 61 virtual void lock();
WFKnight 0:9b3d4731edbb 62 virtual void unlock();
WFKnight 0:9b3d4731edbb 63 FILEHANDLE _fh;
WFKnight 0:9b3d4731edbb 64 int pos;
WFKnight 0:9b3d4731edbb 65 PlatformMutex _mutex;
WFKnight 0:9b3d4731edbb 66 };
WFKnight 0:9b3d4731edbb 67
WFKnight 0:9b3d4731edbb 68 /** A filesystem for accessing the local mbed Microcontroller USB disk drive
WFKnight 0:9b3d4731edbb 69 *
WFKnight 0:9b3d4731edbb 70 * This allows programs to read and write files on the same disk drive that is used to program the
WFKnight 0:9b3d4731edbb 71 * mbed Microcontroller. Once created, the standard C file access functions are used to open,
WFKnight 0:9b3d4731edbb 72 * read and write files.
WFKnight 0:9b3d4731edbb 73 *
WFKnight 0:9b3d4731edbb 74 * @note Synchronization level: Thread safe
WFKnight 0:9b3d4731edbb 75 *
WFKnight 0:9b3d4731edbb 76 * Example:
WFKnight 0:9b3d4731edbb 77 * @code
WFKnight 0:9b3d4731edbb 78 * #include "mbed.h"
WFKnight 0:9b3d4731edbb 79 *
WFKnight 0:9b3d4731edbb 80 * LocalFileSystem local("local"); // Create the local filesystem under the name "local"
WFKnight 0:9b3d4731edbb 81 *
WFKnight 0:9b3d4731edbb 82 * int main() {
WFKnight 0:9b3d4731edbb 83 * FILE *fp = fopen("/local/out.txt", "w"); // Open "out.txt" on the local file system for writing
WFKnight 0:9b3d4731edbb 84 * fprintf(fp, "Hello World!");
WFKnight 0:9b3d4731edbb 85 * fclose(fp);
WFKnight 0:9b3d4731edbb 86 * remove("/local/out.txt"); // Removes the file "out.txt" from the local file system
WFKnight 0:9b3d4731edbb 87 *
WFKnight 0:9b3d4731edbb 88 * DIR *d = opendir("/local"); // Opens the root directory of the local file system
WFKnight 0:9b3d4731edbb 89 * struct dirent *p;
WFKnight 0:9b3d4731edbb 90 * while((p = readdir(d)) != NULL) { // Print the names of the files in the local file system
WFKnight 0:9b3d4731edbb 91 * printf("%s\n", p->d_name); // to stdout.
WFKnight 0:9b3d4731edbb 92 * }
WFKnight 0:9b3d4731edbb 93 * closedir(d);
WFKnight 0:9b3d4731edbb 94 * }
WFKnight 0:9b3d4731edbb 95 * @endcode
WFKnight 0:9b3d4731edbb 96 *
WFKnight 0:9b3d4731edbb 97 * @note
WFKnight 0:9b3d4731edbb 98 * If the microcontroller program makes an access to the local drive, it will be marked as "removed"
WFKnight 0:9b3d4731edbb 99 * on the Host computer. This means it is no longer accessible from the Host Computer.
WFKnight 0:9b3d4731edbb 100 *
WFKnight 0:9b3d4731edbb 101 * The drive will only re-appear when the microcontroller program exists. Note that if the program does
WFKnight 0:9b3d4731edbb 102 * not exit, you will need to hold down reset on the mbed Microcontroller to be able to see the drive again!
WFKnight 0:9b3d4731edbb 103 * @ingroup platform
WFKnight 0:9b3d4731edbb 104 */
WFKnight 0:9b3d4731edbb 105 class LocalFileSystem : public FileSystemLike, private NonCopyable<LocalFileSystem> {
WFKnight 0:9b3d4731edbb 106 // No modifiable state
WFKnight 0:9b3d4731edbb 107
WFKnight 0:9b3d4731edbb 108 public:
WFKnight 0:9b3d4731edbb 109 LocalFileSystem(const char* n) : FileSystemLike(n) {
WFKnight 0:9b3d4731edbb 110
WFKnight 0:9b3d4731edbb 111 }
WFKnight 0:9b3d4731edbb 112
WFKnight 0:9b3d4731edbb 113 virtual int open(FileHandle **file, const char *path, int flags);
WFKnight 0:9b3d4731edbb 114 virtual int open(DirHandle **dir, const char *name);
WFKnight 0:9b3d4731edbb 115 virtual int remove(const char *filename);
WFKnight 0:9b3d4731edbb 116 };
WFKnight 0:9b3d4731edbb 117
WFKnight 0:9b3d4731edbb 118 /**@}*/
WFKnight 0:9b3d4731edbb 119
WFKnight 0:9b3d4731edbb 120 /**@}*/
WFKnight 0:9b3d4731edbb 121
WFKnight 0:9b3d4731edbb 122 } // namespace mbed
WFKnight 0:9b3d4731edbb 123
WFKnight 0:9b3d4731edbb 124 #endif
WFKnight 0:9b3d4731edbb 125
WFKnight 0:9b3d4731edbb 126 #endif
WFKnight 0:9b3d4731edbb 127