spinal cord / PokittoLib

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

Dependents:   Sensitive

Fork of PokittoLib by Jonne Valola

mbed-pokitto/common/FileSystemLike.cpp@15:0bbe8f6fae32, 2017-10-18 (annotated)

Committer:
spinal
Date:
Wed Oct 18 14:47:54 2017 +0000
Revision:
15:0bbe8f6fae32
Parent:
6:ea7377f3d1af 
direct lcd stuff used by sensitive

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 6:ea7377f3d1af 1 /* mbed Microcontroller Library
Pokitto 6:ea7377f3d1af 2 * Copyright (c) 2006-2013 ARM Limited
Pokitto 6:ea7377f3d1af 3 *
Pokitto 6:ea7377f3d1af 4 * Licensed under the Apache License, Version 2.0 (the "License");
Pokitto 6:ea7377f3d1af 5 * you may not use this file except in compliance with the License.
Pokitto 6:ea7377f3d1af 6 * You may obtain a copy of the License at
Pokitto 6:ea7377f3d1af 7 *
Pokitto 6:ea7377f3d1af 8 * http://www.apache.org/licenses/LICENSE-2.0
Pokitto 6:ea7377f3d1af 9 *
Pokitto 6:ea7377f3d1af 10 * Unless required by applicable law or agreed to in writing, software
Pokitto 6:ea7377f3d1af 11 * distributed under the License is distributed on an "AS IS" BASIS,
Pokitto 6:ea7377f3d1af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pokitto 6:ea7377f3d1af 13 * See the License for the specific language governing permissions and
Pokitto 6:ea7377f3d1af 14 * limitations under the License.
Pokitto 6:ea7377f3d1af 15 */
Pokitto 6:ea7377f3d1af 16 #include "FileSystemLike.h"
Pokitto 6:ea7377f3d1af 17
Pokitto 6:ea7377f3d1af 18 namespace mbed {
Pokitto 6:ea7377f3d1af 19
Pokitto 6:ea7377f3d1af 20 class BaseDirHandle : public DirHandle {
Pokitto 6:ea7377f3d1af 21 public:
Pokitto 6:ea7377f3d1af 22 /*
Pokitto 6:ea7377f3d1af 23 We keep track of our current location as the n'th object in the
Pokitto 6:ea7377f3d1af 24 FileSystemLike list. Using a Base* instead would cause problems if that
Pokitto 6:ea7377f3d1af 25 object were to be destroyed between readdirs.
Pokitto 6:ea7377f3d1af 26 Using this method does mean though that destroying/creating objects can
Pokitto 6:ea7377f3d1af 27 give unusual results from readdir.
Pokitto 6:ea7377f3d1af 28 */
Pokitto 6:ea7377f3d1af 29 off_t n;
Pokitto 6:ea7377f3d1af 30 struct dirent cur_entry;
Pokitto 6:ea7377f3d1af 31
Pokitto 6:ea7377f3d1af 32 BaseDirHandle() : n(0), cur_entry() {
Pokitto 6:ea7377f3d1af 33 }
Pokitto 6:ea7377f3d1af 34
Pokitto 6:ea7377f3d1af 35 virtual int closedir() {
Pokitto 6:ea7377f3d1af 36 delete this;
Pokitto 6:ea7377f3d1af 37 return 0;
Pokitto 6:ea7377f3d1af 38 }
Pokitto 6:ea7377f3d1af 39
Pokitto 6:ea7377f3d1af 40 virtual struct dirent *readdir() {
Pokitto 6:ea7377f3d1af 41 FileBase *ptr = FileBase::get(n);
Pokitto 6:ea7377f3d1af 42 if (ptr == NULL) return NULL;
Pokitto 6:ea7377f3d1af 43
Pokitto 6:ea7377f3d1af 44 /* Increment n, so next readdir gets the next item */
Pokitto 6:ea7377f3d1af 45 n++;
Pokitto 6:ea7377f3d1af 46
Pokitto 6:ea7377f3d1af 47 /* Setup cur entry and return a pointer to it */
Pokitto 6:ea7377f3d1af 48 std::strncpy(cur_entry.d_name, ptr->getName(), NAME_MAX);
Pokitto 6:ea7377f3d1af 49 return &cur_entry;
Pokitto 6:ea7377f3d1af 50 }
Pokitto 6:ea7377f3d1af 51
Pokitto 6:ea7377f3d1af 52 virtual off_t telldir() {
Pokitto 6:ea7377f3d1af 53 return n;
Pokitto 6:ea7377f3d1af 54 }
Pokitto 6:ea7377f3d1af 55
Pokitto 6:ea7377f3d1af 56 virtual void seekdir(off_t offset) {
Pokitto 6:ea7377f3d1af 57 n = offset;
Pokitto 6:ea7377f3d1af 58 }
Pokitto 6:ea7377f3d1af 59
Pokitto 6:ea7377f3d1af 60 virtual void rewinddir() {
Pokitto 6:ea7377f3d1af 61 n = 0;
Pokitto 6:ea7377f3d1af 62 }
Pokitto 6:ea7377f3d1af 63 };
Pokitto 6:ea7377f3d1af 64
Pokitto 6:ea7377f3d1af 65 FileSystemLike::FileSystemLike(const char *name) : FileBase(name, FileSystemPathType) {
Pokitto 6:ea7377f3d1af 66
Pokitto 6:ea7377f3d1af 67 }
Pokitto 6:ea7377f3d1af 68
Pokitto 6:ea7377f3d1af 69 FileSystemLike::~FileSystemLike() {
Pokitto 6:ea7377f3d1af 70
Pokitto 6:ea7377f3d1af 71 }
Pokitto 6:ea7377f3d1af 72
Pokitto 6:ea7377f3d1af 73 DirHandle *FileSystemLike::opendir() {
Pokitto 6:ea7377f3d1af 74 return new BaseDirHandle();
Pokitto 6:ea7377f3d1af 75 }
Pokitto 6:ea7377f3d1af 76
Pokitto 6:ea7377f3d1af 77 } // namespace mbed