George Roussos / BLE_Temperature

BLE temperature profile using digital DS1820 or analog LM35 sensors

Dependencies:   DS1820

mbed/DirHandle.h@0:637031152314, 2015-03-07 (annotated)

Committer:
gkroussos
Date:
Sat Mar 07 16:23:41 2015 +0000
Revision:
0:637031152314
Working version 1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gkroussos 0:637031152314 1 /* mbed Microcontroller Library
gkroussos 0:637031152314 2 * Copyright (c) 2006-2013 ARM Limited
gkroussos 0:637031152314 3 *
gkroussos 0:637031152314 4 * Licensed under the Apache License, Version 2.0 (the "License");
gkroussos 0:637031152314 5 * you may not use this file except in compliance with the License.
gkroussos 0:637031152314 6 * You may obtain a copy of the License at
gkroussos 0:637031152314 7 *
gkroussos 0:637031152314 8 * http://www.apache.org/licenses/LICENSE-2.0
gkroussos 0:637031152314 9 *
gkroussos 0:637031152314 10 * Unless required by applicable law or agreed to in writing, software
gkroussos 0:637031152314 11 * distributed under the License is distributed on an "AS IS" BASIS,
gkroussos 0:637031152314 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
gkroussos 0:637031152314 13 * See the License for the specific language governing permissions and
gkroussos 0:637031152314 14 * limitations under the License.
gkroussos 0:637031152314 15 */
gkroussos 0:637031152314 16 #ifndef MBED_DIRHANDLE_H
gkroussos 0:637031152314 17 #define MBED_DIRHANDLE_H
gkroussos 0:637031152314 18
gkroussos 0:637031152314 19 #if defined(__ARMCC_VERSION) || defined(__ICCARM__)
gkroussos 0:637031152314 20 # define NAME_MAX 255
gkroussos 0:637031152314 21 typedef int mode_t;
gkroussos 0:637031152314 22
gkroussos 0:637031152314 23 #else
gkroussos 0:637031152314 24 # include <sys/syslimits.h>
gkroussos 0:637031152314 25 #endif
gkroussos 0:637031152314 26
gkroussos 0:637031152314 27 #include "FileHandle.h"
gkroussos 0:637031152314 28
gkroussos 0:637031152314 29 struct dirent {
gkroussos 0:637031152314 30 char d_name[NAME_MAX+1];
gkroussos 0:637031152314 31 };
gkroussos 0:637031152314 32
gkroussos 0:637031152314 33 namespace mbed {
gkroussos 0:637031152314 34
gkroussos 0:637031152314 35 /** Represents a directory stream. Objects of this type are returned
gkroussos 0:637031152314 36 * by a FileSystemLike's opendir method. Implementations must define
gkroussos 0:637031152314 37 * at least closedir, readdir and rewinddir.
gkroussos 0:637031152314 38 *
gkroussos 0:637031152314 39 * If a FileSystemLike class defines the opendir method, then the
gkroussos 0:637031152314 40 * directories of an object of that type can be accessed by
gkroussos 0:637031152314 41 * DIR *d = opendir("/example/directory") (or opendir("/example")
gkroussos 0:637031152314 42 * to open the root of the filesystem), and then using readdir(d) etc.
gkroussos 0:637031152314 43 *
gkroussos 0:637031152314 44 * The root directory is considered to contain all FileLike and
gkroussos 0:637031152314 45 * FileSystemLike objects, so the DIR* returned by opendir("/") will
gkroussos 0:637031152314 46 * reflect this.
gkroussos 0:637031152314 47 */
gkroussos 0:637031152314 48 class DirHandle {
gkroussos 0:637031152314 49
gkroussos 0:637031152314 50 public:
gkroussos 0:637031152314 51 /** Closes the directory.
gkroussos 0:637031152314 52 *
gkroussos 0:637031152314 53 * @returns
gkroussos 0:637031152314 54 * 0 on success,
gkroussos 0:637031152314 55 * -1 on error.
gkroussos 0:637031152314 56 */
gkroussos 0:637031152314 57 virtual int closedir()=0;
gkroussos 0:637031152314 58
gkroussos 0:637031152314 59 /** Return the directory entry at the current position, and
gkroussos 0:637031152314 60 * advances the position to the next entry.
gkroussos 0:637031152314 61 *
gkroussos 0:637031152314 62 * @returns
gkroussos 0:637031152314 63 * A pointer to a dirent structure representing the
gkroussos 0:637031152314 64 * directory entry at the current position, or NULL on reaching
gkroussos 0:637031152314 65 * end of directory or error.
gkroussos 0:637031152314 66 */
gkroussos 0:637031152314 67 virtual struct dirent *readdir()=0;
gkroussos 0:637031152314 68
gkroussos 0:637031152314 69 /** Resets the position to the beginning of the directory.
gkroussos 0:637031152314 70 */
gkroussos 0:637031152314 71 virtual void rewinddir()=0;
gkroussos 0:637031152314 72
gkroussos 0:637031152314 73 /** Returns the current position of the DirHandle.
gkroussos 0:637031152314 74 *
gkroussos 0:637031152314 75 * @returns
gkroussos 0:637031152314 76 * the current position,
gkroussos 0:637031152314 77 * -1 on error.
gkroussos 0:637031152314 78 */
gkroussos 0:637031152314 79 virtual off_t telldir() { return -1; }
gkroussos 0:637031152314 80
gkroussos 0:637031152314 81 /** Sets the position of the DirHandle.
gkroussos 0:637031152314 82 *
gkroussos 0:637031152314 83 * @param location The location to seek to. Must be a value returned by telldir.
gkroussos 0:637031152314 84 */
gkroussos 0:637031152314 85 virtual void seekdir(off_t location) { }
gkroussos 0:637031152314 86
gkroussos 0:637031152314 87 virtual ~DirHandle() {}
gkroussos 0:637031152314 88 };
gkroussos 0:637031152314 89
gkroussos 0:637031152314 90 } // namespace mbed
gkroussos 0:637031152314 91
gkroussos 0:637031152314 92 typedef mbed::DirHandle DIR;
gkroussos 0:637031152314 93
gkroussos 0:637031152314 94 extern "C" {
gkroussos 0:637031152314 95 DIR *opendir(const char*);
gkroussos 0:637031152314 96 struct dirent *readdir(DIR *);
gkroussos 0:637031152314 97 int closedir(DIR*);
gkroussos 0:637031152314 98 void rewinddir(DIR*);
gkroussos 0:637031152314 99 long telldir(DIR*);
gkroussos 0:637031152314 100 void seekdir(DIR*, long);
gkroussos 0:637031152314 101 int mkdir(const char *name, mode_t n);
gkroussos 0:637031152314 102 };
gkroussos 0:637031152314 103
gkroussos 0:637031152314 104 #endif /* MBED_DIRHANDLE_H */