MQTT client test with W5200 ethernet shield
Dependents: IBMIoTClientEthernetExample_W5200
Fork of W5500Interface by
Socket/TCPSocketServer.cpp@5:8aefaef88f79, 2014-09-26 (annotated)
- Committer:
- kaizen
- Date:
- Fri Sep 26 08:05:41 2014 +0000
- Revision:
- 5:8aefaef88f79
- Parent:
- 4:af0ed4fbca02
Modified for using MQTT protocol ( IBMIoTClient )
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Bongjun | 0:e11e8793c3ce | 1 | /* Copyright (C) 2012 mbed.org, MIT License |
Bongjun | 0:e11e8793c3ce | 2 | * |
Bongjun | 0:e11e8793c3ce | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
Bongjun | 0:e11e8793c3ce | 4 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
Bongjun | 0:e11e8793c3ce | 5 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
Bongjun | 0:e11e8793c3ce | 6 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
Bongjun | 0:e11e8793c3ce | 7 | * furnished to do so, subject to the following conditions: |
Bongjun | 0:e11e8793c3ce | 8 | * |
Bongjun | 0:e11e8793c3ce | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
Bongjun | 0:e11e8793c3ce | 10 | * substantial portions of the Software. |
Bongjun | 0:e11e8793c3ce | 11 | * |
Bongjun | 0:e11e8793c3ce | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
Bongjun | 0:e11e8793c3ce | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
Bongjun | 0:e11e8793c3ce | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
Bongjun | 0:e11e8793c3ce | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
Bongjun | 0:e11e8793c3ce | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
Bongjun | 0:e11e8793c3ce | 17 | */ |
Bongjun | 0:e11e8793c3ce | 18 | |
Bongjun | 0:e11e8793c3ce | 19 | #include "TCPSocketServer.h" |
Bongjun | 0:e11e8793c3ce | 20 | |
Bongjun | 0:e11e8793c3ce | 21 | TCPSocketServer::TCPSocketServer() {} |
Bongjun | 0:e11e8793c3ce | 22 | |
Bongjun | 0:e11e8793c3ce | 23 | // Server initialization |
Bongjun | 0:e11e8793c3ce | 24 | int TCPSocketServer::bind(int port) |
Bongjun | 0:e11e8793c3ce | 25 | { |
Bongjun | 0:e11e8793c3ce | 26 | listen_port = port; |
Bongjun | 0:e11e8793c3ce | 27 | if (_sock_fd < 0) { |
Bongjun | 0:e11e8793c3ce | 28 | _sock_fd = eth->new_socket(); |
Bongjun | 0:e11e8793c3ce | 29 | if (_sock_fd < 0) { |
Bongjun | 0:e11e8793c3ce | 30 | return -1; |
Bongjun | 0:e11e8793c3ce | 31 | } |
Bongjun | 0:e11e8793c3ce | 32 | } |
Bongjun | 0:e11e8793c3ce | 33 | // set TCP protocol |
kaizen | 5:8aefaef88f79 | 34 | eth->setProtocol(_sock_fd, WIZnet_Chip::TCP); |
Bongjun | 0:e11e8793c3ce | 35 | // set local port |
Bongjun | 0:e11e8793c3ce | 36 | eth->sreg<uint16_t>(_sock_fd, Sn_PORT, port); |
Bongjun | 0:e11e8793c3ce | 37 | // connect the network |
kaizen | 5:8aefaef88f79 | 38 | eth->scmd(_sock_fd, WIZnet_Chip::OPEN); |
Bongjun | 0:e11e8793c3ce | 39 | return 0; |
Bongjun | 0:e11e8793c3ce | 40 | } |
Bongjun | 0:e11e8793c3ce | 41 | |
Bongjun | 0:e11e8793c3ce | 42 | int TCPSocketServer::listen(int backlog) |
Bongjun | 0:e11e8793c3ce | 43 | { |
Bongjun | 0:e11e8793c3ce | 44 | if (_sock_fd < 0) { |
Bongjun | 0:e11e8793c3ce | 45 | return -1; |
Bongjun | 0:e11e8793c3ce | 46 | } |
Bongjun | 0:e11e8793c3ce | 47 | if (backlog != 1) { |
Bongjun | 0:e11e8793c3ce | 48 | return -1; |
Bongjun | 0:e11e8793c3ce | 49 | } |
kaizen | 5:8aefaef88f79 | 50 | eth->scmd(_sock_fd, WIZnet_Chip::LISTEN); |
Bongjun | 0:e11e8793c3ce | 51 | return 0; |
Bongjun | 0:e11e8793c3ce | 52 | } |
Bongjun | 0:e11e8793c3ce | 53 | |
Bongjun | 0:e11e8793c3ce | 54 | |
Bongjun | 0:e11e8793c3ce | 55 | int TCPSocketServer::accept(TCPSocketConnection& connection) |
Bongjun | 0:e11e8793c3ce | 56 | { |
Bongjun | 0:e11e8793c3ce | 57 | if (_sock_fd < 0) { |
Bongjun | 0:e11e8793c3ce | 58 | return -1; |
Bongjun | 0:e11e8793c3ce | 59 | } |
Bongjun | 0:e11e8793c3ce | 60 | Timer t; |
Bongjun | 0:e11e8793c3ce | 61 | t.reset(); |
Bongjun | 0:e11e8793c3ce | 62 | t.start(); |
Bongjun | 0:e11e8793c3ce | 63 | while(1) { |
Bongjun | 0:e11e8793c3ce | 64 | if (t.read_ms() > _timeout && _blocking == false) { |
Bongjun | 0:e11e8793c3ce | 65 | return -1; |
Bongjun | 0:e11e8793c3ce | 66 | } |
kaizen | 5:8aefaef88f79 | 67 | if (eth->sreg<uint8_t>(_sock_fd, Sn_SR) == WIZnet_Chip::SOCK_ESTABLISHED) { |
Bongjun | 0:e11e8793c3ce | 68 | break; |
Bongjun | 0:e11e8793c3ce | 69 | } |
Bongjun | 0:e11e8793c3ce | 70 | } |
Bongjun | 0:e11e8793c3ce | 71 | uint32_t ip = eth->sreg<uint32_t>(_sock_fd, Sn_DIPR); |
Bongjun | 0:e11e8793c3ce | 72 | char host[16]; |
Bongjun | 0:e11e8793c3ce | 73 | snprintf(host, sizeof(host), "%d.%d.%d.%d", (ip>>24)&0xff, (ip>>16)&0xff, (ip>>8)&0xff, ip&0xff); |
Bongjun | 0:e11e8793c3ce | 74 | uint16_t port = eth->sreg<uint16_t>(_sock_fd, Sn_DPORT); |
Bongjun | 0:e11e8793c3ce | 75 | |
Bongjun | 0:e11e8793c3ce | 76 | // change this server socket to connection socket. |
Bongjun | 0:e11e8793c3ce | 77 | connection._sock_fd = _sock_fd; |
Bongjun | 0:e11e8793c3ce | 78 | connection._is_connected = true; |
Bongjun | 0:e11e8793c3ce | 79 | connection.set_address(host, port); |
Bongjun | 0:e11e8793c3ce | 80 | |
Bongjun | 0:e11e8793c3ce | 81 | // and then, for the next connection, server socket should be assigned new one. |
Bongjun | 0:e11e8793c3ce | 82 | _sock_fd = -1; // want to assign new available _sock_fd. |
Bongjun | 0:e11e8793c3ce | 83 | if(bind(listen_port) < 0) { |
Bongjun | 4:af0ed4fbca02 | 84 | // modified by Patrick Pollet |
Bongjun | 4:af0ed4fbca02 | 85 | error("No more socket for listening, bind error"); |
Bongjun | 4:af0ed4fbca02 | 86 | return -1; |
Bongjun | 0:e11e8793c3ce | 87 | } else { |
Bongjun | 0:e11e8793c3ce | 88 | //return -1; |
Bongjun | 0:e11e8793c3ce | 89 | if(listen(1) < 0) { |
Bongjun | 4:af0ed4fbca02 | 90 | // modified by Patrick Pollet |
Bongjun | 4:af0ed4fbca02 | 91 | error("No more socket for listening, listen error"); |
Bongjun | 4:af0ed4fbca02 | 92 | return -1; |
Bongjun | 0:e11e8793c3ce | 93 | } |
Bongjun | 0:e11e8793c3ce | 94 | } |
Bongjun | 0:e11e8793c3ce | 95 | return 0; |
Bongjun | 0:e11e8793c3ce | 96 | } |