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Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
mbed-os/platform/FileBase.cpp@0:8fdf9a60065b, 2018-10-10 (annotated)
- Committer:
- kadonotakashi
- Date:
- Wed Oct 10 00:33:53 2018 +0000
- Revision:
- 0:8fdf9a60065b
how to make mbed librry
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kadonotakashi | 0:8fdf9a60065b | 1 | /* mbed Microcontroller Library |
kadonotakashi | 0:8fdf9a60065b | 2 | * Copyright (c) 2006-2013 ARM Limited |
kadonotakashi | 0:8fdf9a60065b | 3 | * |
kadonotakashi | 0:8fdf9a60065b | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
kadonotakashi | 0:8fdf9a60065b | 5 | * you may not use this file except in compliance with the License. |
kadonotakashi | 0:8fdf9a60065b | 6 | * You may obtain a copy of the License at |
kadonotakashi | 0:8fdf9a60065b | 7 | * |
kadonotakashi | 0:8fdf9a60065b | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
kadonotakashi | 0:8fdf9a60065b | 9 | * |
kadonotakashi | 0:8fdf9a60065b | 10 | * Unless required by applicable law or agreed to in writing, software |
kadonotakashi | 0:8fdf9a60065b | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
kadonotakashi | 0:8fdf9a60065b | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
kadonotakashi | 0:8fdf9a60065b | 13 | * See the License for the specific language governing permissions and |
kadonotakashi | 0:8fdf9a60065b | 14 | * limitations under the License. |
kadonotakashi | 0:8fdf9a60065b | 15 | */ |
kadonotakashi | 0:8fdf9a60065b | 16 | #include <cstring> |
kadonotakashi | 0:8fdf9a60065b | 17 | |
kadonotakashi | 0:8fdf9a60065b | 18 | #include "platform/FileBase.h" |
kadonotakashi | 0:8fdf9a60065b | 19 | #include "platform/FileLike.h" |
kadonotakashi | 0:8fdf9a60065b | 20 | #include "platform/FileHandle.h" |
kadonotakashi | 0:8fdf9a60065b | 21 | |
kadonotakashi | 0:8fdf9a60065b | 22 | namespace mbed { |
kadonotakashi | 0:8fdf9a60065b | 23 | |
kadonotakashi | 0:8fdf9a60065b | 24 | FileBase *FileBase::_head = NULL; |
kadonotakashi | 0:8fdf9a60065b | 25 | SingletonPtr<PlatformMutex> FileBase::_mutex; |
kadonotakashi | 0:8fdf9a60065b | 26 | FileBase *FileBase::_default = NULL; |
kadonotakashi | 0:8fdf9a60065b | 27 | |
kadonotakashi | 0:8fdf9a60065b | 28 | FileBase::FileBase(const char *name, PathType t) : _next(NULL), |
kadonotakashi | 0:8fdf9a60065b | 29 | _name(name), |
kadonotakashi | 0:8fdf9a60065b | 30 | _path_type(t) |
kadonotakashi | 0:8fdf9a60065b | 31 | { |
kadonotakashi | 0:8fdf9a60065b | 32 | _mutex->lock(); |
kadonotakashi | 0:8fdf9a60065b | 33 | if (name != NULL) { |
kadonotakashi | 0:8fdf9a60065b | 34 | // put this object at head of the list |
kadonotakashi | 0:8fdf9a60065b | 35 | _next = _head; |
kadonotakashi | 0:8fdf9a60065b | 36 | _head = this; |
kadonotakashi | 0:8fdf9a60065b | 37 | } else { |
kadonotakashi | 0:8fdf9a60065b | 38 | _next = NULL; |
kadonotakashi | 0:8fdf9a60065b | 39 | } |
kadonotakashi | 0:8fdf9a60065b | 40 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 41 | } |
kadonotakashi | 0:8fdf9a60065b | 42 | |
kadonotakashi | 0:8fdf9a60065b | 43 | FileBase::~FileBase() |
kadonotakashi | 0:8fdf9a60065b | 44 | { |
kadonotakashi | 0:8fdf9a60065b | 45 | _mutex->lock(); |
kadonotakashi | 0:8fdf9a60065b | 46 | if (_name != NULL) { |
kadonotakashi | 0:8fdf9a60065b | 47 | // remove this object from the list |
kadonotakashi | 0:8fdf9a60065b | 48 | if (_head == this) { // first in the list, so just drop me |
kadonotakashi | 0:8fdf9a60065b | 49 | _head = _next; |
kadonotakashi | 0:8fdf9a60065b | 50 | } else { // find the object before me, then drop me |
kadonotakashi | 0:8fdf9a60065b | 51 | FileBase *p = _head; |
kadonotakashi | 0:8fdf9a60065b | 52 | while (p->_next != this) { |
kadonotakashi | 0:8fdf9a60065b | 53 | p = p->_next; |
kadonotakashi | 0:8fdf9a60065b | 54 | } |
kadonotakashi | 0:8fdf9a60065b | 55 | p->_next = _next; |
kadonotakashi | 0:8fdf9a60065b | 56 | } |
kadonotakashi | 0:8fdf9a60065b | 57 | } |
kadonotakashi | 0:8fdf9a60065b | 58 | |
kadonotakashi | 0:8fdf9a60065b | 59 | if (_default == this) { |
kadonotakashi | 0:8fdf9a60065b | 60 | _default = NULL; |
kadonotakashi | 0:8fdf9a60065b | 61 | } |
kadonotakashi | 0:8fdf9a60065b | 62 | |
kadonotakashi | 0:8fdf9a60065b | 63 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 64 | |
kadonotakashi | 0:8fdf9a60065b | 65 | if (getPathType() == FilePathType) { |
kadonotakashi | 0:8fdf9a60065b | 66 | extern void remove_filehandle(FileHandle *file); |
kadonotakashi | 0:8fdf9a60065b | 67 | remove_filehandle(static_cast<FileLike *>(this)); |
kadonotakashi | 0:8fdf9a60065b | 68 | } |
kadonotakashi | 0:8fdf9a60065b | 69 | } |
kadonotakashi | 0:8fdf9a60065b | 70 | |
kadonotakashi | 0:8fdf9a60065b | 71 | void FileBase::set_as_default() |
kadonotakashi | 0:8fdf9a60065b | 72 | { |
kadonotakashi | 0:8fdf9a60065b | 73 | _mutex->lock(); |
kadonotakashi | 0:8fdf9a60065b | 74 | _default = this; |
kadonotakashi | 0:8fdf9a60065b | 75 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 76 | } |
kadonotakashi | 0:8fdf9a60065b | 77 | |
kadonotakashi | 0:8fdf9a60065b | 78 | FileBase *FileBase::lookup(const char *name, unsigned int len) |
kadonotakashi | 0:8fdf9a60065b | 79 | { |
kadonotakashi | 0:8fdf9a60065b | 80 | _mutex->lock(); |
kadonotakashi | 0:8fdf9a60065b | 81 | FileBase *p = _head; |
kadonotakashi | 0:8fdf9a60065b | 82 | while (p != NULL) { |
kadonotakashi | 0:8fdf9a60065b | 83 | /* Check that p->_name matches name and is the correct length */ |
kadonotakashi | 0:8fdf9a60065b | 84 | if (p->_name != NULL && len == std::strlen(p->_name) && std::memcmp(p->_name, name, len) == 0) { |
kadonotakashi | 0:8fdf9a60065b | 85 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 86 | return p; |
kadonotakashi | 0:8fdf9a60065b | 87 | } |
kadonotakashi | 0:8fdf9a60065b | 88 | p = p->_next; |
kadonotakashi | 0:8fdf9a60065b | 89 | } |
kadonotakashi | 0:8fdf9a60065b | 90 | if (len == (sizeof "default") - 1 && std::memcmp("default", name, len) == 0) { |
kadonotakashi | 0:8fdf9a60065b | 91 | return _default; |
kadonotakashi | 0:8fdf9a60065b | 92 | } |
kadonotakashi | 0:8fdf9a60065b | 93 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 94 | return NULL; |
kadonotakashi | 0:8fdf9a60065b | 95 | } |
kadonotakashi | 0:8fdf9a60065b | 96 | |
kadonotakashi | 0:8fdf9a60065b | 97 | FileBase *FileBase::get(int n) |
kadonotakashi | 0:8fdf9a60065b | 98 | { |
kadonotakashi | 0:8fdf9a60065b | 99 | _mutex->lock(); |
kadonotakashi | 0:8fdf9a60065b | 100 | FileBase *p = _head; |
kadonotakashi | 0:8fdf9a60065b | 101 | int m = 0; |
kadonotakashi | 0:8fdf9a60065b | 102 | while (p != NULL) { |
kadonotakashi | 0:8fdf9a60065b | 103 | if (m == n) { |
kadonotakashi | 0:8fdf9a60065b | 104 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 105 | return p; |
kadonotakashi | 0:8fdf9a60065b | 106 | } |
kadonotakashi | 0:8fdf9a60065b | 107 | |
kadonotakashi | 0:8fdf9a60065b | 108 | m++; |
kadonotakashi | 0:8fdf9a60065b | 109 | p = p->_next; |
kadonotakashi | 0:8fdf9a60065b | 110 | } |
kadonotakashi | 0:8fdf9a60065b | 111 | _mutex->unlock(); |
kadonotakashi | 0:8fdf9a60065b | 112 | return NULL; |
kadonotakashi | 0:8fdf9a60065b | 113 | } |
kadonotakashi | 0:8fdf9a60065b | 114 | |
kadonotakashi | 0:8fdf9a60065b | 115 | const char *FileBase::getName(void) |
kadonotakashi | 0:8fdf9a60065b | 116 | { |
kadonotakashi | 0:8fdf9a60065b | 117 | // Constant read so no lock needed |
kadonotakashi | 0:8fdf9a60065b | 118 | return _name; |
kadonotakashi | 0:8fdf9a60065b | 119 | } |
kadonotakashi | 0:8fdf9a60065b | 120 | |
kadonotakashi | 0:8fdf9a60065b | 121 | PathType FileBase::getPathType(void) |
kadonotakashi | 0:8fdf9a60065b | 122 | { |
kadonotakashi | 0:8fdf9a60065b | 123 | // Constant read so no lock needed |
kadonotakashi | 0:8fdf9a60065b | 124 | return _path_type; |
kadonotakashi | 0:8fdf9a60065b | 125 | } |
kadonotakashi | 0:8fdf9a60065b | 126 | |
kadonotakashi | 0:8fdf9a60065b | 127 | } // namespace mbed |
kadonotakashi | 0:8fdf9a60065b | 128 |