Rahol Rajan / NetServices-Traffic

Used in Live Traffic Update Nokia LCD Display Project

Fork of NetServices by Segundo Equipo

services/http/client/data/HTTPStream.cpp@8:92b57208ab99, 2013-03-06 (annotated)

Committer:
rrajan8
Date:
Wed Mar 06 19:07:23 2013 +0000
Revision:
8:92b57208ab99
Parent:
0:ac1725ba162c 
This project utilizes mbed's networking features to display live traffic updates on the Nokia LCD using the MapQuest API's Traffic Web Service.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
segundo 0:ac1725ba162c 1
segundo 0:ac1725ba162c 2 /*
segundo 0:ac1725ba162c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
segundo 0:ac1725ba162c 4
segundo 0:ac1725ba162c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
segundo 0:ac1725ba162c 6 of this software and associated documentation files (the "Software"), to deal
segundo 0:ac1725ba162c 7 in the Software without restriction, including without limitation the rights
segundo 0:ac1725ba162c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
segundo 0:ac1725ba162c 9 copies of the Software, and to permit persons to whom the Software is
segundo 0:ac1725ba162c 10 furnished to do so, subject to the following conditions:
segundo 0:ac1725ba162c 11
segundo 0:ac1725ba162c 12 The above copyright notice and this permission notice shall be included in
segundo 0:ac1725ba162c 13 all copies or substantial portions of the Software.
segundo 0:ac1725ba162c 14
segundo 0:ac1725ba162c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
segundo 0:ac1725ba162c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
segundo 0:ac1725ba162c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
segundo 0:ac1725ba162c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
segundo 0:ac1725ba162c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
segundo 0:ac1725ba162c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
segundo 0:ac1725ba162c 21 THE SOFTWARE.
segundo 0:ac1725ba162c 22 */
segundo 0:ac1725ba162c 23
segundo 0:ac1725ba162c 24 #include "HTTPStream.h"
segundo 0:ac1725ba162c 25
segundo 0:ac1725ba162c 26 #define MIN(a,b) ((a)<(b)?(a):(b))
segundo 0:ac1725ba162c 27
segundo 0:ac1725ba162c 28 HTTPStream::HTTPStream() : HTTPData(), m_buf(NULL), m_size(0), m_len(0)
segundo 0:ac1725ba162c 29 {
segundo 0:ac1725ba162c 30
segundo 0:ac1725ba162c 31 }
segundo 0:ac1725ba162c 32
segundo 0:ac1725ba162c 33 HTTPStream::~HTTPStream()
segundo 0:ac1725ba162c 34 {
segundo 0:ac1725ba162c 35
segundo 0:ac1725ba162c 36 }
segundo 0:ac1725ba162c 37
segundo 0:ac1725ba162c 38
segundo 0:ac1725ba162c 39 void HTTPStream::readNext(byte* buf, int size)
segundo 0:ac1725ba162c 40 {
segundo 0:ac1725ba162c 41 m_buf = buf;
segundo 0:ac1725ba162c 42 m_size = size;
segundo 0:ac1725ba162c 43 m_len = 0;
segundo 0:ac1725ba162c 44 }
segundo 0:ac1725ba162c 45
segundo 0:ac1725ba162c 46 bool HTTPStream::readable()
segundo 0:ac1725ba162c 47 {
segundo 0:ac1725ba162c 48 return (m_len>0);
segundo 0:ac1725ba162c 49 }
segundo 0:ac1725ba162c 50
segundo 0:ac1725ba162c 51 int HTTPStream::readLen()
segundo 0:ac1725ba162c 52 {
segundo 0:ac1725ba162c 53 return m_len;
segundo 0:ac1725ba162c 54 }
segundo 0:ac1725ba162c 55
segundo 0:ac1725ba162c 56 void HTTPStream::clear()
segundo 0:ac1725ba162c 57 {
segundo 0:ac1725ba162c 58 //Do nothing here since it is a stream and not a buffer
segundo 0:ac1725ba162c 59 }
segundo 0:ac1725ba162c 60
segundo 0:ac1725ba162c 61 int HTTPStream::read(char* buf, int len)
segundo 0:ac1725ba162c 62 {
segundo 0:ac1725ba162c 63 return 0; //Unsupported yet
segundo 0:ac1725ba162c 64 }
segundo 0:ac1725ba162c 65
segundo 0:ac1725ba162c 66 int HTTPStream::write(const char* buf, int len)
segundo 0:ac1725ba162c 67 {
segundo 0:ac1725ba162c 68 if(!m_buf)
segundo 0:ac1725ba162c 69 return 0;
segundo 0:ac1725ba162c 70 len = MIN( m_size - m_len, len );
segundo 0:ac1725ba162c 71 memcpy(m_buf + m_len, buf, len);
segundo 0:ac1725ba162c 72 m_len += len;
segundo 0:ac1725ba162c 73 return len;
segundo 0:ac1725ba162c 74 }
segundo 0:ac1725ba162c 75
segundo 0:ac1725ba162c 76 string HTTPStream::getDataType() //Internet media type for Content-Type header
segundo 0:ac1725ba162c 77 {
segundo 0:ac1725ba162c 78 return "";
segundo 0:ac1725ba162c 79 }
segundo 0:ac1725ba162c 80
segundo 0:ac1725ba162c 81 void HTTPStream::setDataType(const string& type) //Internet media type from Content-Type header
segundo 0:ac1725ba162c 82 {
segundo 0:ac1725ba162c 83 //Do not really care here
segundo 0:ac1725ba162c 84 }
segundo 0:ac1725ba162c 85
segundo 0:ac1725ba162c 86 bool HTTPStream::getIsChunked() //For Transfer-Encoding header
segundo 0:ac1725ba162c 87 {
segundo 0:ac1725ba162c 88 return false; //We don't want to chunk this
segundo 0:ac1725ba162c 89 }
segundo 0:ac1725ba162c 90
segundo 0:ac1725ba162c 91 void HTTPStream::setIsChunked(bool chunked) //From Transfer-Encoding header
segundo 0:ac1725ba162c 92 {
segundo 0:ac1725ba162c 93 //Nothing to do
segundo 0:ac1725ba162c 94 }
segundo 0:ac1725ba162c 95
segundo 0:ac1725ba162c 96 int HTTPStream::getDataLen() //For Content-Length header
segundo 0:ac1725ba162c 97 {
segundo 0:ac1725ba162c 98 return 0;
segundo 0:ac1725ba162c 99 }
segundo 0:ac1725ba162c 100
segundo 0:ac1725ba162c 101 void HTTPStream::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
segundo 0:ac1725ba162c 102 {
segundo 0:ac1725ba162c 103
segundo 0:ac1725ba162c 104 }