Junichi Katsu / Milkcocoa

データの保存、更新、取得ができるWebサービス「milkcocoa」に接続し、データのプッシュ、送信、取得ができるライブラリです。 https://mlkcca.com/

Dependencies:   MQTT

Dependents:   MilkcocoaSample MilkcocoaSampleESP8266_LED MilkcocoaSampleESP8266 MilkcocoaSample_3G ... more

ESP8266InterfaceTiny/ESP8266/CBuffer.h@0:23e533c4b1ec, 2015-12-15 (annotated)

Committer:
jksoft
Date:
Tue Dec 15 09:56:32 2015 +0000
Revision:
0:23e533c4b1ec
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:23e533c4b1ec 1 /* Copyright (C) 2012 mbed.org, MIT License
jksoft 0:23e533c4b1ec 2 *
jksoft 0:23e533c4b1ec 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
jksoft 0:23e533c4b1ec 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
jksoft 0:23e533c4b1ec 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
jksoft 0:23e533c4b1ec 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
jksoft 0:23e533c4b1ec 7 * furnished to do so, subject to the following conditions:
jksoft 0:23e533c4b1ec 8 *
jksoft 0:23e533c4b1ec 9 * The above copyright notice and this permission notice shall be included in all copies or
jksoft 0:23e533c4b1ec 10 * substantial portions of the Software.
jksoft 0:23e533c4b1ec 11 *
jksoft 0:23e533c4b1ec 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
jksoft 0:23e533c4b1ec 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
jksoft 0:23e533c4b1ec 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
jksoft 0:23e533c4b1ec 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jksoft 0:23e533c4b1ec 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
jksoft 0:23e533c4b1ec 17 */
jksoft 0:23e533c4b1ec 18
jksoft 0:23e533c4b1ec 19 #ifndef CIRCBUFFER_H_
jksoft 0:23e533c4b1ec 20 #define CIRCBUFFER_H_
jksoft 0:23e533c4b1ec 21
jksoft 0:23e533c4b1ec 22 template <class T>
jksoft 0:23e533c4b1ec 23 class CircBuffer {
jksoft 0:23e533c4b1ec 24 public:
jksoft 0:23e533c4b1ec 25 CircBuffer(int length) {
jksoft 0:23e533c4b1ec 26 write = 0;
jksoft 0:23e533c4b1ec 27 read = 0;
jksoft 0:23e533c4b1ec 28 size = length + 1;
jksoft 0:23e533c4b1ec 29 buf = (T *)malloc(size * sizeof(T));
jksoft 0:23e533c4b1ec 30 };
jksoft 0:23e533c4b1ec 31
jksoft 0:23e533c4b1ec 32 bool isFull() {
jksoft 0:23e533c4b1ec 33 return (((write + 1) % size) == read);
jksoft 0:23e533c4b1ec 34 };
jksoft 0:23e533c4b1ec 35
jksoft 0:23e533c4b1ec 36 bool isEmpty() {
jksoft 0:23e533c4b1ec 37 return (read == write);
jksoft 0:23e533c4b1ec 38 };
jksoft 0:23e533c4b1ec 39
jksoft 0:23e533c4b1ec 40 void queue(T k) {
jksoft 0:23e533c4b1ec 41 if (isFull()) {
jksoft 0:23e533c4b1ec 42 read++;
jksoft 0:23e533c4b1ec 43 read %= size;
jksoft 0:23e533c4b1ec 44 }
jksoft 0:23e533c4b1ec 45 buf[write++] = k;
jksoft 0:23e533c4b1ec 46 write %= size;
jksoft 0:23e533c4b1ec 47 }
jksoft 0:23e533c4b1ec 48
jksoft 0:23e533c4b1ec 49 void flush() {
jksoft 0:23e533c4b1ec 50 read = 0;
jksoft 0:23e533c4b1ec 51 write = 0;
jksoft 0:23e533c4b1ec 52 }
jksoft 0:23e533c4b1ec 53
jksoft 0:23e533c4b1ec 54
jksoft 0:23e533c4b1ec 55 uint32_t available() {
jksoft 0:23e533c4b1ec 56 return (write >= read) ? write - read : size - read + write;
jksoft 0:23e533c4b1ec 57 };
jksoft 0:23e533c4b1ec 58
jksoft 0:23e533c4b1ec 59 bool dequeue(T * c) {
jksoft 0:23e533c4b1ec 60 bool empty = isEmpty();
jksoft 0:23e533c4b1ec 61 if (!empty) {
jksoft 0:23e533c4b1ec 62 *c = buf[read++];
jksoft 0:23e533c4b1ec 63 read %= size;
jksoft 0:23e533c4b1ec 64 }
jksoft 0:23e533c4b1ec 65 return(!empty);
jksoft 0:23e533c4b1ec 66 };
jksoft 0:23e533c4b1ec 67
jksoft 0:23e533c4b1ec 68 private:
jksoft 0:23e533c4b1ec 69 volatile uint32_t write;
jksoft 0:23e533c4b1ec 70 volatile uint32_t read;
jksoft 0:23e533c4b1ec 71 uint32_t size;
jksoft 0:23e533c4b1ec 72 T * buf;
jksoft 0:23e533c4b1ec 73 };
jksoft 0:23e533c4b1ec 74
jksoft 0:23e533c4b1ec 75 #endif