Websocket_Sample for MurataTypeYD

Dependencies:   mbed picojson

Committer:
komoritan
Date:
Thu Mar 12 12:14:38 2015 +0000
Revision:
0:14bd24b5a77f
fixed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
komoritan 0:14bd24b5a77f 1 /* Copyright (C) 2012 mbed.org, MIT License
komoritan 0:14bd24b5a77f 2 *
komoritan 0:14bd24b5a77f 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
komoritan 0:14bd24b5a77f 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
komoritan 0:14bd24b5a77f 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
komoritan 0:14bd24b5a77f 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
komoritan 0:14bd24b5a77f 7 * furnished to do so, subject to the following conditions:
komoritan 0:14bd24b5a77f 8 *
komoritan 0:14bd24b5a77f 9 * The above copyright notice and this permission notice shall be included in all copies or
komoritan 0:14bd24b5a77f 10 * substantial portions of the Software.
komoritan 0:14bd24b5a77f 11 *
komoritan 0:14bd24b5a77f 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
komoritan 0:14bd24b5a77f 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
komoritan 0:14bd24b5a77f 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
komoritan 0:14bd24b5a77f 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
komoritan 0:14bd24b5a77f 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
komoritan 0:14bd24b5a77f 17 */
komoritan 0:14bd24b5a77f 18
komoritan 0:14bd24b5a77f 19 #ifndef CIRCBUFFER_H_
komoritan 0:14bd24b5a77f 20 #define CIRCBUFFER_H_
komoritan 0:14bd24b5a77f 21
komoritan 0:14bd24b5a77f 22 template <class T>
komoritan 0:14bd24b5a77f 23 class CircBuffer {
komoritan 0:14bd24b5a77f 24 public:
komoritan 0:14bd24b5a77f 25 CircBuffer(int length) {
komoritan 0:14bd24b5a77f 26 write = 0;
komoritan 0:14bd24b5a77f 27 read = 0;
komoritan 0:14bd24b5a77f 28 size = length + 1;
komoritan 0:14bd24b5a77f 29 buf = (T *)malloc(size * sizeof(T));
komoritan 0:14bd24b5a77f 30 };
komoritan 0:14bd24b5a77f 31
komoritan 0:14bd24b5a77f 32 bool isFull() {
komoritan 0:14bd24b5a77f 33 return (((write + 1) % size) == read);
komoritan 0:14bd24b5a77f 34 };
komoritan 0:14bd24b5a77f 35
komoritan 0:14bd24b5a77f 36 bool isEmpty() {
komoritan 0:14bd24b5a77f 37 return (read == write);
komoritan 0:14bd24b5a77f 38 };
komoritan 0:14bd24b5a77f 39
komoritan 0:14bd24b5a77f 40 void queue(T k) {
komoritan 0:14bd24b5a77f 41
komoritan 0:14bd24b5a77f 42 if (isFull()) {
komoritan 0:14bd24b5a77f 43 read++;
komoritan 0:14bd24b5a77f 44 read %= size;
komoritan 0:14bd24b5a77f 45 }
komoritan 0:14bd24b5a77f 46 buf[write++] = k;
komoritan 0:14bd24b5a77f 47 write %= size;
komoritan 0:14bd24b5a77f 48 }
komoritan 0:14bd24b5a77f 49
komoritan 0:14bd24b5a77f 50 void flush() {
komoritan 0:14bd24b5a77f 51 read = 0;
komoritan 0:14bd24b5a77f 52 write = 0;
komoritan 0:14bd24b5a77f 53 }
komoritan 0:14bd24b5a77f 54
komoritan 0:14bd24b5a77f 55
komoritan 0:14bd24b5a77f 56 uint32_t available() {
komoritan 0:14bd24b5a77f 57 return (write >= read) ? write - read : size - read + write;
komoritan 0:14bd24b5a77f 58 };
komoritan 0:14bd24b5a77f 59
komoritan 0:14bd24b5a77f 60 bool dequeue(T * c) {
komoritan 0:14bd24b5a77f 61 bool empty = isEmpty();
komoritan 0:14bd24b5a77f 62 if (!empty) {
komoritan 0:14bd24b5a77f 63 *c = buf[read++];
komoritan 0:14bd24b5a77f 64 read %= size;
komoritan 0:14bd24b5a77f 65 }
komoritan 0:14bd24b5a77f 66 return(!empty);
komoritan 0:14bd24b5a77f 67 };
komoritan 0:14bd24b5a77f 68
komoritan 0:14bd24b5a77f 69 private:
komoritan 0:14bd24b5a77f 70 volatile uint32_t write;
komoritan 0:14bd24b5a77f 71 volatile uint32_t read;
komoritan 0:14bd24b5a77f 72 uint32_t size;
komoritan 0:14bd24b5a77f 73 T * buf;
komoritan 0:14bd24b5a77f 74 };
komoritan 0:14bd24b5a77f 75
komoritan 0:14bd24b5a77f 76 #endif