jehoon song / Mbed 2 deprecated WiFi_Tracker

v1.0

Dependencies:   SDFileSystem mbed

RingBuffer/RingBuffer.cpp@0:0073c8def9f1, 2016-05-09 (annotated)

Committer:
jehoon
Date:
Mon May 09 00:13:40 2016 +0000
Revision:
0:0073c8def9f1
WiFi Tracker

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jehoon 0:0073c8def9f1 1 #include <RingBuffer.h>
jehoon 0:0073c8def9f1 2
jehoon 0:0073c8def9f1 3 RingBuffer::RingBuffer()
jehoon 0:0073c8def9f1 4 {
jehoon 0:0073c8def9f1 5
jehoon 0:0073c8def9f1 6 }
jehoon 0:0073c8def9f1 7
jehoon 0:0073c8def9f1 8 RingBuffer::RingBuffer(int length)
jehoon 0:0073c8def9f1 9 {
jehoon 0:0073c8def9f1 10 this->buffer = (byte *)malloc(length);
jehoon 0:0073c8def9f1 11 this->max = length;
jehoon 0:0073c8def9f1 12 this->fill = 0;
jehoon 0:0073c8def9f1 13 this->ptr = 0;
jehoon 0:0073c8def9f1 14 }
jehoon 0:0073c8def9f1 15
jehoon 0:0073c8def9f1 16 RingBuffer::~RingBuffer()
jehoon 0:0073c8def9f1 17 {
jehoon 0:0073c8def9f1 18 free (this->buffer);
jehoon 0:0073c8def9f1 19 }
jehoon 0:0073c8def9f1 20
jehoon 0:0073c8def9f1 21 void RingBuffer::init(int length)
jehoon 0:0073c8def9f1 22 {
jehoon 0:0073c8def9f1 23 this->buffer = (byte *)malloc(length);
jehoon 0:0073c8def9f1 24 this->max = length;
jehoon 0:0073c8def9f1 25 this->fill = 0;
jehoon 0:0073c8def9f1 26 this->ptr = 0;
jehoon 0:0073c8def9f1 27 }
jehoon 0:0073c8def9f1 28
jehoon 0:0073c8def9f1 29 void RingBuffer::clear()
jehoon 0:0073c8def9f1 30 {
jehoon 0:0073c8def9f1 31 this->fill = 0;
jehoon 0:0073c8def9f1 32 }
jehoon 0:0073c8def9f1 33
jehoon 0:0073c8def9f1 34 bool RingBuffer::isFull()
jehoon 0:0073c8def9f1 35 {
jehoon 0:0073c8def9f1 36 return (this->max == this->fill);
jehoon 0:0073c8def9f1 37 }
jehoon 0:0073c8def9f1 38
jehoon 0:0073c8def9f1 39 bool RingBuffer::hasData()
jehoon 0:0073c8def9f1 40 {
jehoon 0:0073c8def9f1 41 return (this->fill != 0);
jehoon 0:0073c8def9f1 42 }
jehoon 0:0073c8def9f1 43
jehoon 0:0073c8def9f1 44 bool RingBuffer::addByte(byte b)
jehoon 0:0073c8def9f1 45 {
jehoon 0:0073c8def9f1 46 if (this->max == this->fill)
jehoon 0:0073c8def9f1 47 return false;
jehoon 0:0073c8def9f1 48
jehoon 0:0073c8def9f1 49 int idx = (this->ptr + this->fill) % this->max;
jehoon 0:0073c8def9f1 50 this->buffer[idx] = b;
jehoon 0:0073c8def9f1 51 this->fill++;
jehoon 0:0073c8def9f1 52 return true;
jehoon 0:0073c8def9f1 53 }
jehoon 0:0073c8def9f1 54
jehoon 0:0073c8def9f1 55 byte RingBuffer::consumeByte()
jehoon 0:0073c8def9f1 56 {
jehoon 0:0073c8def9f1 57 if (this->fill == 0)
jehoon 0:0073c8def9f1 58 return 0;
jehoon 0:0073c8def9f1 59
jehoon 0:0073c8def9f1 60 byte ret = this->buffer[this->ptr];
jehoon 0:0073c8def9f1 61 this->fill--;
jehoon 0:0073c8def9f1 62 this->ptr++;
jehoon 0:0073c8def9f1 63 this->ptr %= this->max;
jehoon 0:0073c8def9f1 64 return ret;
jehoon 0:0073c8def9f1 65 }
jehoon 0:0073c8def9f1 66
jehoon 0:0073c8def9f1 67 byte RingBuffer::peek(int idx)
jehoon 0:0073c8def9f1 68 {
jehoon 0:0073c8def9f1 69 byte p = (this->ptr + idx) % this->max;
jehoon 0:0073c8def9f1 70 return this->buffer[p];
jehoon 0:0073c8def9f1 71 }
jehoon 0:0073c8def9f1 72
jehoon 0:0073c8def9f1 73 int RingBuffer::findBuf(char * str)
jehoon 0:0073c8def9f1 74 {
jehoon 0:0073c8def9f1 75 int i=0;
jehoon 0:0073c8def9f1 76 int cnt = 0;
jehoon 0:0073c8def9f1 77 int len = strlen(str);
jehoon 0:0073c8def9f1 78 byte *tmp = (byte *) str;
jehoon 0:0073c8def9f1 79
jehoon 0:0073c8def9f1 80 if( this->fill == 0 )
jehoon 0:0073c8def9f1 81 return -1;
jehoon 0:0073c8def9f1 82
jehoon 0:0073c8def9f1 83 for( i=0; i<this->fill; i++ )
jehoon 0:0073c8def9f1 84 {
jehoon 0:0073c8def9f1 85 if( peek(i) == *tmp )
jehoon 0:0073c8def9f1 86 {
jehoon 0:0073c8def9f1 87 tmp++;
jehoon 0:0073c8def9f1 88 cnt++;
jehoon 0:0073c8def9f1 89
jehoon 0:0073c8def9f1 90 if(cnt == len)
jehoon 0:0073c8def9f1 91 {
jehoon 0:0073c8def9f1 92 return (i - len + 1);
jehoon 0:0073c8def9f1 93 }
jehoon 0:0073c8def9f1 94 }
jehoon 0:0073c8def9f1 95 else
jehoon 0:0073c8def9f1 96 {
jehoon 0:0073c8def9f1 97 tmp = (byte *)str;
jehoon 0:0073c8def9f1 98 cnt=0;
jehoon 0:0073c8def9f1 99 }
jehoon 0:0073c8def9f1 100 }
jehoon 0:0073c8def9f1 101
jehoon 0:0073c8def9f1 102 return -1;
jehoon 0:0073c8def9f1 103 }
jehoon 0:0073c8def9f1 104
jehoon 0:0073c8def9f1 105
jehoon 0:0073c8def9f1 106 int RingBuffer::count()
jehoon 0:0073c8def9f1 107 {
jehoon 0:0073c8def9f1 108 return this->fill;
jehoon 0:0073c8def9f1 109 }