ryou sato / Mbed 2 deprecated LPC11U35_CTswitch_relay

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Dependencies:   mbed LPC11U35_MCP41HV51-503EST

USBDevice/USBSerial/CircBuffer.h@9:0b3a7a9eed3e, 2021-03-09 (annotated)

Committer:
ryousato
Date:
Tue Mar 09 05:40:47 2021 +0000
Revision:
9:0b3a7a9eed3e
Parent:
0:df1e1f84ded8 
20210309

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ryousato 0:df1e1f84ded8 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
ryousato 0:df1e1f84ded8 2 *
ryousato 0:df1e1f84ded8 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
ryousato 0:df1e1f84ded8 4 * and associated documentation files (the "Software"), to deal in the Software without
ryousato 0:df1e1f84ded8 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
ryousato 0:df1e1f84ded8 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
ryousato 0:df1e1f84ded8 7 * Software is furnished to do so, subject to the following conditions:
ryousato 0:df1e1f84ded8 8 *
ryousato 0:df1e1f84ded8 9 * The above copyright notice and this permission notice shall be included in all copies or
ryousato 0:df1e1f84ded8 10 * substantial portions of the Software.
ryousato 0:df1e1f84ded8 11 *
ryousato 0:df1e1f84ded8 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
ryousato 0:df1e1f84ded8 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
ryousato 0:df1e1f84ded8 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
ryousato 0:df1e1f84ded8 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ryousato 0:df1e1f84ded8 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
ryousato 0:df1e1f84ded8 17 */
ryousato 0:df1e1f84ded8 18
ryousato 0:df1e1f84ded8 19 #ifndef CIRCBUFFER_H
ryousato 0:df1e1f84ded8 20 #define CIRCBUFFER_H
ryousato 0:df1e1f84ded8 21
ryousato 0:df1e1f84ded8 22 template <class T>
ryousato 0:df1e1f84ded8 23 class CircBuffer {
ryousato 0:df1e1f84ded8 24 public:
ryousato 0:df1e1f84ded8 25 CircBuffer(int length) {
ryousato 0:df1e1f84ded8 26 write = 0;
ryousato 0:df1e1f84ded8 27 read = 0;
ryousato 0:df1e1f84ded8 28 size = length + 1;
ryousato 0:df1e1f84ded8 29 buf = (T *)malloc(size * sizeof(T));
ryousato 0:df1e1f84ded8 30 };
ryousato 0:df1e1f84ded8 31
ryousato 0:df1e1f84ded8 32 ~CircBuffer() {
ryousato 0:df1e1f84ded8 33 free(buf);
ryousato 0:df1e1f84ded8 34 }
ryousato 0:df1e1f84ded8 35
ryousato 0:df1e1f84ded8 36 bool isFull() {
ryousato 0:df1e1f84ded8 37 return ((write + 1) % size == read);
ryousato 0:df1e1f84ded8 38 };
ryousato 0:df1e1f84ded8 39
ryousato 0:df1e1f84ded8 40 bool isEmpty() {
ryousato 0:df1e1f84ded8 41 return (read == write);
ryousato 0:df1e1f84ded8 42 };
ryousato 0:df1e1f84ded8 43
ryousato 0:df1e1f84ded8 44 void queue(T k) {
ryousato 0:df1e1f84ded8 45 if (isFull()) {
ryousato 0:df1e1f84ded8 46 read++;
ryousato 0:df1e1f84ded8 47 read %= size;
ryousato 0:df1e1f84ded8 48 }
ryousato 0:df1e1f84ded8 49 buf[write++] = k;
ryousato 0:df1e1f84ded8 50 write %= size;
ryousato 0:df1e1f84ded8 51 }
ryousato 0:df1e1f84ded8 52
ryousato 0:df1e1f84ded8 53 uint16_t available() {
ryousato 0:df1e1f84ded8 54 return (write >= read) ? write - read : size - read + write;
ryousato 0:df1e1f84ded8 55 };
ryousato 0:df1e1f84ded8 56
ryousato 0:df1e1f84ded8 57 bool dequeue(T * c) {
ryousato 0:df1e1f84ded8 58 bool empty = isEmpty();
ryousato 0:df1e1f84ded8 59 if (!empty) {
ryousato 0:df1e1f84ded8 60 *c = buf[read++];
ryousato 0:df1e1f84ded8 61 read %= size;
ryousato 0:df1e1f84ded8 62 }
ryousato 0:df1e1f84ded8 63 return(!empty);
ryousato 0:df1e1f84ded8 64 };
ryousato 0:df1e1f84ded8 65
ryousato 0:df1e1f84ded8 66 private:
ryousato 0:df1e1f84ded8 67 volatile uint16_t write;
ryousato 0:df1e1f84ded8 68 volatile uint16_t read;
ryousato 0:df1e1f84ded8 69 uint16_t size;
ryousato 0:df1e1f84ded8 70 T * buf;
ryousato 0:df1e1f84ded8 71 };
ryousato 0:df1e1f84ded8 72
ryousato 0:df1e1f84ded8 73 #endif