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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/FileSystemLike.cpp@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Parent:
212:34d62c0b2af6 
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #include "FileSystemLike.h"
bogdanm 13:0645d8841f51 17
bogdanm 13:0645d8841f51 18 namespace mbed {
bogdanm 13:0645d8841f51 19
bogdanm 13:0645d8841f51 20 class BaseDirHandle : public DirHandle {
bogdanm 13:0645d8841f51 21 public:
bogdanm 13:0645d8841f51 22 /*
bogdanm 13:0645d8841f51 23 We keep track of our current location as the n'th object in the
bogdanm 13:0645d8841f51 24 FileSystemLike list. Using a Base* instead would cause problems if that
bogdanm 13:0645d8841f51 25 object were to be destroyed between readdirs.
bogdanm 13:0645d8841f51 26 Using this method does mean though that destroying/creating objects can
bogdanm 13:0645d8841f51 27 give unusual results from readdir.
bogdanm 13:0645d8841f51 28 */
bogdanm 13:0645d8841f51 29 off_t n;
bogdanm 13:0645d8841f51 30 struct dirent cur_entry;
bogdanm 13:0645d8841f51 31
mbed_official 212:34d62c0b2af6 32 BaseDirHandle() : n(0), cur_entry() {
bogdanm 13:0645d8841f51 33 }
bogdanm 13:0645d8841f51 34
bogdanm 13:0645d8841f51 35 virtual int closedir() {
bogdanm 13:0645d8841f51 36 delete this;
bogdanm 13:0645d8841f51 37 return 0;
bogdanm 13:0645d8841f51 38 }
bogdanm 13:0645d8841f51 39
bogdanm 13:0645d8841f51 40 virtual struct dirent *readdir() {
bogdanm 13:0645d8841f51 41 FileBase *ptr = FileBase::get(n);
bogdanm 13:0645d8841f51 42 if (ptr == NULL) return NULL;
bogdanm 13:0645d8841f51 43
bogdanm 13:0645d8841f51 44 /* Increment n, so next readdir gets the next item */
bogdanm 13:0645d8841f51 45 n++;
bogdanm 13:0645d8841f51 46
bogdanm 13:0645d8841f51 47 /* Setup cur entry and return a pointer to it */
bogdanm 13:0645d8841f51 48 std::strncpy(cur_entry.d_name, ptr->getName(), NAME_MAX);
bogdanm 13:0645d8841f51 49 return &cur_entry;
bogdanm 13:0645d8841f51 50 }
bogdanm 13:0645d8841f51 51
bogdanm 13:0645d8841f51 52 virtual off_t telldir() {
bogdanm 13:0645d8841f51 53 return n;
bogdanm 13:0645d8841f51 54 }
bogdanm 13:0645d8841f51 55
bogdanm 13:0645d8841f51 56 virtual void seekdir(off_t offset) {
bogdanm 13:0645d8841f51 57 n = offset;
bogdanm 13:0645d8841f51 58 }
bogdanm 13:0645d8841f51 59
bogdanm 13:0645d8841f51 60 virtual void rewinddir() {
bogdanm 13:0645d8841f51 61 n = 0;
bogdanm 13:0645d8841f51 62 }
bogdanm 13:0645d8841f51 63 };
bogdanm 13:0645d8841f51 64
bogdanm 13:0645d8841f51 65 FileSystemLike::FileSystemLike(const char *name) : FileBase(name, FileSystemPathType) {
bogdanm 13:0645d8841f51 66
bogdanm 13:0645d8841f51 67 }
bogdanm 13:0645d8841f51 68
bogdanm 13:0645d8841f51 69 FileSystemLike::~FileSystemLike() {
bogdanm 13:0645d8841f51 70
bogdanm 13:0645d8841f51 71 }
bogdanm 13:0645d8841f51 72
bogdanm 13:0645d8841f51 73 DirHandle *FileSystemLike::opendir() {
bogdanm 13:0645d8841f51 74 return new BaseDirHandle();
bogdanm 13:0645d8841f51 75 }
bogdanm 13:0645d8841f51 76
bogdanm 13:0645d8841f51 77 } // namespace mbed