Dirk-Willem van Gulik (NXP/mbed)
Example self-announcing webserver which controls a servo through a smallHTML userinterface.
api/UDPSocket.cpp@0:a259777c45a3, 2010-08-14 (annotated)
- Committer:
- dirkx
- Date:
- Sat Aug 14 15:56:01 2010 +0000
- Revision:
- 0:a259777c45a3
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| dirkx | 0:a259777c45a3 | 1 | |
| dirkx | 0:a259777c45a3 | 2 | /* |
| dirkx | 0:a259777c45a3 | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
| dirkx | 0:a259777c45a3 | 4 | |
| dirkx | 0:a259777c45a3 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| dirkx | 0:a259777c45a3 | 6 | of this software and associated documentation files (the "Software"), to deal |
| dirkx | 0:a259777c45a3 | 7 | in the Software without restriction, including without limitation the rights |
| dirkx | 0:a259777c45a3 | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| dirkx | 0:a259777c45a3 | 9 | copies of the Software, and to permit persons to whom the Software is |
| dirkx | 0:a259777c45a3 | 10 | furnished to do so, subject to the following conditions: |
| dirkx | 0:a259777c45a3 | 11 | |
| dirkx | 0:a259777c45a3 | 12 | The above copyright notice and this permission notice shall be included in |
| dirkx | 0:a259777c45a3 | 13 | all copies or substantial portions of the Software. |
| dirkx | 0:a259777c45a3 | 14 | |
| dirkx | 0:a259777c45a3 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| dirkx | 0:a259777c45a3 | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| dirkx | 0:a259777c45a3 | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| dirkx | 0:a259777c45a3 | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| dirkx | 0:a259777c45a3 | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| dirkx | 0:a259777c45a3 | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| dirkx | 0:a259777c45a3 | 21 | THE SOFTWARE. |
| dirkx | 0:a259777c45a3 | 22 | */ |
| dirkx | 0:a259777c45a3 | 23 | |
| dirkx | 0:a259777c45a3 | 24 | #include "UDPSocket.h" |
| dirkx | 0:a259777c45a3 | 25 | |
| dirkx | 0:a259777c45a3 | 26 | UDPSocket::UDPSocket() : m_pNetUdpSocket(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL) |
| dirkx | 0:a259777c45a3 | 27 | { |
| dirkx | 0:a259777c45a3 | 28 | |
| dirkx | 0:a259777c45a3 | 29 | } |
| dirkx | 0:a259777c45a3 | 30 | |
| dirkx | 0:a259777c45a3 | 31 | UDPSocket::~UDPSocket() //close() |
| dirkx | 0:a259777c45a3 | 32 | { |
| dirkx | 0:a259777c45a3 | 33 | close(); |
| dirkx | 0:a259777c45a3 | 34 | } |
| dirkx | 0:a259777c45a3 | 35 | |
| dirkx | 0:a259777c45a3 | 36 | UDPSocketErr UDPSocket::bind(const Host& me) |
| dirkx | 0:a259777c45a3 | 37 | { |
| dirkx | 0:a259777c45a3 | 38 | UDPSocketErr udpSocketErr = checkInst(); |
| dirkx | 0:a259777c45a3 | 39 | if(udpSocketErr) |
| dirkx | 0:a259777c45a3 | 40 | return udpSocketErr; |
| dirkx | 0:a259777c45a3 | 41 | return (UDPSocketErr) m_pNetUdpSocket->bind(me); |
| dirkx | 0:a259777c45a3 | 42 | } |
| dirkx | 0:a259777c45a3 | 43 | |
| dirkx | 0:a259777c45a3 | 44 | int /*if < 0 : UDPSocketErr*/ UDPSocket::sendto(const char* buf, int len, Host* pHost) |
| dirkx | 0:a259777c45a3 | 45 | { |
| dirkx | 0:a259777c45a3 | 46 | UDPSocketErr udpSocketErr = checkInst(); |
| dirkx | 0:a259777c45a3 | 47 | if(udpSocketErr) |
| dirkx | 0:a259777c45a3 | 48 | return udpSocketErr; |
| dirkx | 0:a259777c45a3 | 49 | return m_pNetUdpSocket->sendto(buf, len, pHost); |
| dirkx | 0:a259777c45a3 | 50 | } |
| dirkx | 0:a259777c45a3 | 51 | |
| dirkx | 0:a259777c45a3 | 52 | int /*if < 0 : UDPSocketErr*/ UDPSocket::recvfrom(char* buf, int len, Host* pHost) |
| dirkx | 0:a259777c45a3 | 53 | { |
| dirkx | 0:a259777c45a3 | 54 | UDPSocketErr udpSocketErr = checkInst(); |
| dirkx | 0:a259777c45a3 | 55 | if(udpSocketErr) |
| dirkx | 0:a259777c45a3 | 56 | return udpSocketErr; |
| dirkx | 0:a259777c45a3 | 57 | return m_pNetUdpSocket->recvfrom(buf, len, pHost); |
| dirkx | 0:a259777c45a3 | 58 | } |
| dirkx | 0:a259777c45a3 | 59 | |
| dirkx | 0:a259777c45a3 | 60 | UDPSocketErr UDPSocket::close() |
| dirkx | 0:a259777c45a3 | 61 | { |
| dirkx | 0:a259777c45a3 | 62 | if(!m_pNetUdpSocket) |
| dirkx | 0:a259777c45a3 | 63 | return UDPSOCKET_SETUP; |
| dirkx | 0:a259777c45a3 | 64 | m_pNetUdpSocket->resetOnEvent(); |
| dirkx | 0:a259777c45a3 | 65 | UDPSocketErr udpSocketErr = (UDPSocketErr) m_pNetUdpSocket->close(); //Close (can already be closed) |
| dirkx | 0:a259777c45a3 | 66 | Net::releaseUdpSocket(m_pNetUdpSocket); //And release it so it can be freed when properly removed |
| dirkx | 0:a259777c45a3 | 67 | m_pNetUdpSocket = NULL; |
| dirkx | 0:a259777c45a3 | 68 | return udpSocketErr; |
| dirkx | 0:a259777c45a3 | 69 | } |
| dirkx | 0:a259777c45a3 | 70 | |
| dirkx | 0:a259777c45a3 | 71 | //Callbacks |
| dirkx | 0:a259777c45a3 | 72 | void UDPSocket::setOnEvent( void (*pMethod)(UDPSocketEvent) ) |
| dirkx | 0:a259777c45a3 | 73 | { |
| dirkx | 0:a259777c45a3 | 74 | m_pCb = pMethod; |
| dirkx | 0:a259777c45a3 | 75 | } |
| dirkx | 0:a259777c45a3 | 76 | |
| dirkx | 0:a259777c45a3 | 77 | #if 0 //For info only |
| dirkx | 0:a259777c45a3 | 78 | template<class T> |
| dirkx | 0:a259777c45a3 | 79 | void UDPSocket::setOnEvent( T* pItem, void (T::*pMethod)(UDPSocketEvent) ) |
| dirkx | 0:a259777c45a3 | 80 | { |
| dirkx | 0:a259777c45a3 | 81 | m_pCbItem = (CDummy*) pItem; |
| dirkx | 0:a259777c45a3 | 82 | m_pCbMeth = (void (CDummy::*)(UDPSocketEvent)) pMethod; |
| dirkx | 0:a259777c45a3 | 83 | } |
| dirkx | 0:a259777c45a3 | 84 | #endif |
| dirkx | 0:a259777c45a3 | 85 | |
| dirkx | 0:a259777c45a3 | 86 | void UDPSocket::resetOnEvent() //Disable callback |
| dirkx | 0:a259777c45a3 | 87 | { |
| dirkx | 0:a259777c45a3 | 88 | m_pCb = NULL; |
| dirkx | 0:a259777c45a3 | 89 | m_pCbItem = NULL; |
| dirkx | 0:a259777c45a3 | 90 | m_pCbMeth = NULL; |
| dirkx | 0:a259777c45a3 | 91 | } |
| dirkx | 0:a259777c45a3 | 92 | |
| dirkx | 0:a259777c45a3 | 93 | void UDPSocket::onNetUdpSocketEvent(NetUdpSocketEvent e) |
| dirkx | 0:a259777c45a3 | 94 | { |
| dirkx | 0:a259777c45a3 | 95 | if(m_pCbItem && m_pCbMeth) |
| dirkx | 0:a259777c45a3 | 96 | (m_pCbItem->*m_pCbMeth)((UDPSocketEvent) e); |
| dirkx | 0:a259777c45a3 | 97 | else if(m_pCb) |
| dirkx | 0:a259777c45a3 | 98 | m_pCb((UDPSocketEvent) e); |
| dirkx | 0:a259777c45a3 | 99 | } |
| dirkx | 0:a259777c45a3 | 100 | |
| dirkx | 0:a259777c45a3 | 101 | UDPSocketErr UDPSocket::checkInst() |
| dirkx | 0:a259777c45a3 | 102 | { |
| dirkx | 0:a259777c45a3 | 103 | if(!m_pNetUdpSocket) |
| dirkx | 0:a259777c45a3 | 104 | { |
| dirkx | 0:a259777c45a3 | 105 | m_pNetUdpSocket = Net::udpSocket(); |
| dirkx | 0:a259777c45a3 | 106 | if(!m_pNetUdpSocket) |
| dirkx | 0:a259777c45a3 | 107 | { |
| dirkx | 0:a259777c45a3 | 108 | return UDPSOCKET_IF; //Interface did not return a socket (usually because a default interface does not exist) |
| dirkx | 0:a259777c45a3 | 109 | } |
| dirkx | 0:a259777c45a3 | 110 | m_pNetUdpSocket->setOnEvent(this, &UDPSocket::onNetUdpSocketEvent); |
| dirkx | 0:a259777c45a3 | 111 | } |
| dirkx | 0:a259777c45a3 | 112 | return UDPSOCKET_OK; |
| dirkx | 0:a259777c45a3 | 113 | } |