Milen Pavlov / XRange_mbed_src

Mbed SDK for XRange SX1272 LoRa module

Dependents:   XRangePingPong XRange-LoRaWAN-lmic-app lora-transceiver

SX1272 LoRa RF module

https://www.netblocks.eu/xrange-sx1272-lora-datasheet/

common/FileSystemLike.cpp@339:ac6f3fd999f3, 2016-01-07 (annotated)

Committer:
netblocks
Date:
Thu Jan 07 13:01:25 2016 +0000
Revision:
339:ac6f3fd999f3
Parent:
336:1e18a06a987b 
HSE_VALUE set for XTAL 16Mhz

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 336:1e18a06a987b 1 /* mbed Microcontroller Library
dudmuck 336:1e18a06a987b 2 * Copyright (c) 2006-2013 ARM Limited
dudmuck 336:1e18a06a987b 3 *
dudmuck 336:1e18a06a987b 4 * Licensed under the Apache License, Version 2.0 (the "License");
dudmuck 336:1e18a06a987b 5 * you may not use this file except in compliance with the License.
dudmuck 336:1e18a06a987b 6 * You may obtain a copy of the License at
dudmuck 336:1e18a06a987b 7 *
dudmuck 336:1e18a06a987b 8 * http://www.apache.org/licenses/LICENSE-2.0
dudmuck 336:1e18a06a987b 9 *
dudmuck 336:1e18a06a987b 10 * Unless required by applicable law or agreed to in writing, software
dudmuck 336:1e18a06a987b 11 * distributed under the License is distributed on an "AS IS" BASIS,
dudmuck 336:1e18a06a987b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dudmuck 336:1e18a06a987b 13 * See the License for the specific language governing permissions and
dudmuck 336:1e18a06a987b 14 * limitations under the License.
dudmuck 336:1e18a06a987b 15 */
dudmuck 336:1e18a06a987b 16 #include "FileSystemLike.h"
dudmuck 336:1e18a06a987b 17
dudmuck 336:1e18a06a987b 18 namespace mbed {
dudmuck 336:1e18a06a987b 19
dudmuck 336:1e18a06a987b 20 class BaseDirHandle : public DirHandle {
dudmuck 336:1e18a06a987b 21 public:
dudmuck 336:1e18a06a987b 22 /*
dudmuck 336:1e18a06a987b 23 We keep track of our current location as the n'th object in the
dudmuck 336:1e18a06a987b 24 FileSystemLike list. Using a Base* instead would cause problems if that
dudmuck 336:1e18a06a987b 25 object were to be destroyed between readdirs.
dudmuck 336:1e18a06a987b 26 Using this method does mean though that destroying/creating objects can
dudmuck 336:1e18a06a987b 27 give unusual results from readdir.
dudmuck 336:1e18a06a987b 28 */
dudmuck 336:1e18a06a987b 29 off_t n;
dudmuck 336:1e18a06a987b 30 struct dirent cur_entry;
dudmuck 336:1e18a06a987b 31
dudmuck 336:1e18a06a987b 32 BaseDirHandle() : n(0), cur_entry() {
dudmuck 336:1e18a06a987b 33 }
dudmuck 336:1e18a06a987b 34
dudmuck 336:1e18a06a987b 35 virtual int closedir() {
dudmuck 336:1e18a06a987b 36 delete this;
dudmuck 336:1e18a06a987b 37 return 0;
dudmuck 336:1e18a06a987b 38 }
dudmuck 336:1e18a06a987b 39
dudmuck 336:1e18a06a987b 40 virtual struct dirent *readdir() {
dudmuck 336:1e18a06a987b 41 FileBase *ptr = FileBase::get(n);
dudmuck 336:1e18a06a987b 42 if (ptr == NULL) return NULL;
dudmuck 336:1e18a06a987b 43
dudmuck 336:1e18a06a987b 44 /* Increment n, so next readdir gets the next item */
dudmuck 336:1e18a06a987b 45 n++;
dudmuck 336:1e18a06a987b 46
dudmuck 336:1e18a06a987b 47 /* Setup cur entry and return a pointer to it */
dudmuck 336:1e18a06a987b 48 std::strncpy(cur_entry.d_name, ptr->getName(), NAME_MAX);
dudmuck 336:1e18a06a987b 49 return &cur_entry;
dudmuck 336:1e18a06a987b 50 }
dudmuck 336:1e18a06a987b 51
dudmuck 336:1e18a06a987b 52 virtual off_t telldir() {
dudmuck 336:1e18a06a987b 53 return n;
dudmuck 336:1e18a06a987b 54 }
dudmuck 336:1e18a06a987b 55
dudmuck 336:1e18a06a987b 56 virtual void seekdir(off_t offset) {
dudmuck 336:1e18a06a987b 57 n = offset;
dudmuck 336:1e18a06a987b 58 }
dudmuck 336:1e18a06a987b 59
dudmuck 336:1e18a06a987b 60 virtual void rewinddir() {
dudmuck 336:1e18a06a987b 61 n = 0;
dudmuck 336:1e18a06a987b 62 }
dudmuck 336:1e18a06a987b 63 };
dudmuck 336:1e18a06a987b 64
dudmuck 336:1e18a06a987b 65 FileSystemLike::FileSystemLike(const char *name) : FileBase(name, FileSystemPathType) {
dudmuck 336:1e18a06a987b 66
dudmuck 336:1e18a06a987b 67 }
dudmuck 336:1e18a06a987b 68
dudmuck 336:1e18a06a987b 69 FileSystemLike::~FileSystemLike() {
dudmuck 336:1e18a06a987b 70
dudmuck 336:1e18a06a987b 71 }
dudmuck 336:1e18a06a987b 72
dudmuck 336:1e18a06a987b 73 DirHandle *FileSystemLike::opendir() {
dudmuck 336:1e18a06a987b 74 return new BaseDirHandle();
dudmuck 336:1e18a06a987b 75 }
dudmuck 336:1e18a06a987b 76
dudmuck 336:1e18a06a987b 77 } // namespace mbed