For mbed OS-5 version for WIZnet Ethernet Interface, this is Library using Hardware TCP/IP chip, W5500 and TCP/IP Offload Engine, W7500.
Warning
- If you want to use existing codes, you need to change the class used as EthernetInterface to WIZnetInterface.
This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500 and TCP/IP Offload Engine, W7500.
- WIZwiki_W7500 : /platforms/WIZwiki-W7500/
- WIZwiki_W7500P : /platforms/WIZwiki-W7500P/
- WIZwiki_W7500ECO : /platforms/WIZwiki-W7500ECO/
- W5500 Ethernet Shield : /components/W5500-Ethernet-Kit-for-IoT/
This library is an Ethernet Interface library port-based on [EthernetInterface](https://developer.mbed.org/users/mbed_official/code/EthernetInterface/docs/tip/).
For more detail, visit http://embeddist.blogspot.kr/2015/06/wiznetinterface-for-armmbed.html
Socket/TCPSocketConnection.cpp@0:d4c8fe4d9b29, 2017-09-04 (annotated)
- Committer:
- justinkim
- Date:
- Mon Sep 04 00:23:04 2017 +0000
- Revision:
- 0:d4c8fe4d9b29
mbed OS 5 version migration...
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
justinkim | 0:d4c8fe4d9b29 | 1 | /* Copyright (C) 2012 mbed.org, MIT License |
justinkim | 0:d4c8fe4d9b29 | 2 | * |
justinkim | 0:d4c8fe4d9b29 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
justinkim | 0:d4c8fe4d9b29 | 4 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
justinkim | 0:d4c8fe4d9b29 | 5 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
justinkim | 0:d4c8fe4d9b29 | 6 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
justinkim | 0:d4c8fe4d9b29 | 7 | * furnished to do so, subject to the following conditions: |
justinkim | 0:d4c8fe4d9b29 | 8 | * |
justinkim | 0:d4c8fe4d9b29 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
justinkim | 0:d4c8fe4d9b29 | 10 | * substantial portions of the Software. |
justinkim | 0:d4c8fe4d9b29 | 11 | * |
justinkim | 0:d4c8fe4d9b29 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
justinkim | 0:d4c8fe4d9b29 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
justinkim | 0:d4c8fe4d9b29 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
justinkim | 0:d4c8fe4d9b29 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
justinkim | 0:d4c8fe4d9b29 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
justinkim | 0:d4c8fe4d9b29 | 17 | */ |
justinkim | 0:d4c8fe4d9b29 | 18 | |
justinkim | 0:d4c8fe4d9b29 | 19 | #include "TCPSocketConnection.h" |
justinkim | 0:d4c8fe4d9b29 | 20 | #include <cstring> |
justinkim | 0:d4c8fe4d9b29 | 21 | |
justinkim | 0:d4c8fe4d9b29 | 22 | using std::memset; |
justinkim | 0:d4c8fe4d9b29 | 23 | using std::memcpy; |
justinkim | 0:d4c8fe4d9b29 | 24 | |
justinkim | 0:d4c8fe4d9b29 | 25 | // not a big code. |
justinkim | 0:d4c8fe4d9b29 | 26 | // refer from EthernetInterface by mbed official driver |
justinkim | 0:d4c8fe4d9b29 | 27 | TCPSocketConnection::TCPSocketConnection() : |
justinkim | 0:d4c8fe4d9b29 | 28 | _is_connected(false) |
justinkim | 0:d4c8fe4d9b29 | 29 | { |
justinkim | 0:d4c8fe4d9b29 | 30 | } |
justinkim | 0:d4c8fe4d9b29 | 31 | |
justinkim | 0:d4c8fe4d9b29 | 32 | int TCPSocketConnection::connect(const char* host, const int port) |
justinkim | 0:d4c8fe4d9b29 | 33 | { |
justinkim | 0:d4c8fe4d9b29 | 34 | if (_sock_fd < 0) { |
justinkim | 0:d4c8fe4d9b29 | 35 | _sock_fd = eth->new_socket(); |
justinkim | 0:d4c8fe4d9b29 | 36 | if (_sock_fd < 0) { |
justinkim | 0:d4c8fe4d9b29 | 37 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 38 | } |
justinkim | 0:d4c8fe4d9b29 | 39 | } |
justinkim | 0:d4c8fe4d9b29 | 40 | if (set_address(host, port) != 0) { |
justinkim | 0:d4c8fe4d9b29 | 41 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 42 | } |
justinkim | 0:d4c8fe4d9b29 | 43 | if (!eth->connect(_sock_fd, get_address(), port)) { |
justinkim | 0:d4c8fe4d9b29 | 44 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 45 | } |
justinkim | 0:d4c8fe4d9b29 | 46 | set_blocking(false); |
justinkim | 0:d4c8fe4d9b29 | 47 | // add code refer from EthernetInterface. |
justinkim | 0:d4c8fe4d9b29 | 48 | _is_connected = true; |
justinkim | 0:d4c8fe4d9b29 | 49 | |
justinkim | 0:d4c8fe4d9b29 | 50 | return 0; |
justinkim | 0:d4c8fe4d9b29 | 51 | } |
justinkim | 0:d4c8fe4d9b29 | 52 | |
justinkim | 0:d4c8fe4d9b29 | 53 | bool TCPSocketConnection::is_connected(void) |
justinkim | 0:d4c8fe4d9b29 | 54 | { |
justinkim | 0:d4c8fe4d9b29 | 55 | // force update recent state. |
justinkim | 0:d4c8fe4d9b29 | 56 | _is_connected = eth->is_connected(_sock_fd); |
justinkim | 0:d4c8fe4d9b29 | 57 | return _is_connected; |
justinkim | 0:d4c8fe4d9b29 | 58 | } |
justinkim | 0:d4c8fe4d9b29 | 59 | |
justinkim | 0:d4c8fe4d9b29 | 60 | int TCPSocketConnection::send(char* data, int length) |
justinkim | 0:d4c8fe4d9b29 | 61 | { |
justinkim | 0:d4c8fe4d9b29 | 62 | if((_sock_fd<0) || !(eth->is_connected(_sock_fd))) |
justinkim | 0:d4c8fe4d9b29 | 63 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 64 | |
justinkim | 0:d4c8fe4d9b29 | 65 | int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout); |
justinkim | 0:d4c8fe4d9b29 | 66 | if (size < 0) |
justinkim | 0:d4c8fe4d9b29 | 67 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 68 | |
justinkim | 0:d4c8fe4d9b29 | 69 | if (size > length) |
justinkim | 0:d4c8fe4d9b29 | 70 | size = length; |
justinkim | 0:d4c8fe4d9b29 | 71 | |
justinkim | 0:d4c8fe4d9b29 | 72 | return eth->send(_sock_fd, data, size); |
justinkim | 0:d4c8fe4d9b29 | 73 | } |
justinkim | 0:d4c8fe4d9b29 | 74 | |
justinkim | 0:d4c8fe4d9b29 | 75 | // -1 if unsuccessful, else number of bytes written |
justinkim | 0:d4c8fe4d9b29 | 76 | int TCPSocketConnection::send_all(char* data, int length) |
justinkim | 0:d4c8fe4d9b29 | 77 | { |
justinkim | 0:d4c8fe4d9b29 | 78 | int writtenLen = 0; |
justinkim | 0:d4c8fe4d9b29 | 79 | |
justinkim | 0:d4c8fe4d9b29 | 80 | if(_sock_fd<0) |
justinkim | 0:d4c8fe4d9b29 | 81 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 82 | |
justinkim | 0:d4c8fe4d9b29 | 83 | while (writtenLen < length) { |
justinkim | 0:d4c8fe4d9b29 | 84 | |
justinkim | 0:d4c8fe4d9b29 | 85 | if(!(eth->is_connected(_sock_fd))) |
justinkim | 0:d4c8fe4d9b29 | 86 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 87 | |
justinkim | 0:d4c8fe4d9b29 | 88 | int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout); |
justinkim | 0:d4c8fe4d9b29 | 89 | if (size < 0) { |
justinkim | 0:d4c8fe4d9b29 | 90 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 91 | } |
justinkim | 0:d4c8fe4d9b29 | 92 | if (size > (length-writtenLen)) { |
justinkim | 0:d4c8fe4d9b29 | 93 | size = (length-writtenLen); |
justinkim | 0:d4c8fe4d9b29 | 94 | } |
justinkim | 0:d4c8fe4d9b29 | 95 | int ret = eth->send(_sock_fd, data + writtenLen, size); |
justinkim | 0:d4c8fe4d9b29 | 96 | if (ret < 0) { |
justinkim | 0:d4c8fe4d9b29 | 97 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 98 | } |
justinkim | 0:d4c8fe4d9b29 | 99 | writtenLen += ret; |
justinkim | 0:d4c8fe4d9b29 | 100 | } |
justinkim | 0:d4c8fe4d9b29 | 101 | return writtenLen; |
justinkim | 0:d4c8fe4d9b29 | 102 | } |
justinkim | 0:d4c8fe4d9b29 | 103 | |
justinkim | 0:d4c8fe4d9b29 | 104 | // -1 if unsuccessful, else number of bytes received |
justinkim | 0:d4c8fe4d9b29 | 105 | int TCPSocketConnection::receive(char* data, int length) |
justinkim | 0:d4c8fe4d9b29 | 106 | { |
justinkim | 0:d4c8fe4d9b29 | 107 | if((_sock_fd<0) || !(eth->is_connected(_sock_fd))) |
justinkim | 0:d4c8fe4d9b29 | 108 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 109 | |
justinkim | 0:d4c8fe4d9b29 | 110 | int size = eth->wait_readable(_sock_fd, _blocking ? -1 : _timeout); |
justinkim | 0:d4c8fe4d9b29 | 111 | if (size < 0) { |
justinkim | 0:d4c8fe4d9b29 | 112 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 113 | } |
justinkim | 0:d4c8fe4d9b29 | 114 | if (size > length) { |
justinkim | 0:d4c8fe4d9b29 | 115 | size = length; |
justinkim | 0:d4c8fe4d9b29 | 116 | } |
justinkim | 0:d4c8fe4d9b29 | 117 | return eth->recv(_sock_fd, data, size); |
justinkim | 0:d4c8fe4d9b29 | 118 | } |
justinkim | 0:d4c8fe4d9b29 | 119 | |
justinkim | 0:d4c8fe4d9b29 | 120 | // -1 if unsuccessful, else number of bytes received |
justinkim | 0:d4c8fe4d9b29 | 121 | int TCPSocketConnection::receive_all(char* data, int length) |
justinkim | 0:d4c8fe4d9b29 | 122 | { |
justinkim | 0:d4c8fe4d9b29 | 123 | if(_sock_fd<0) |
justinkim | 0:d4c8fe4d9b29 | 124 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 125 | |
justinkim | 0:d4c8fe4d9b29 | 126 | int readLen = 0; |
justinkim | 0:d4c8fe4d9b29 | 127 | while (readLen < length) { |
justinkim | 0:d4c8fe4d9b29 | 128 | |
justinkim | 0:d4c8fe4d9b29 | 129 | if(!(eth->is_connected(_sock_fd))) |
justinkim | 0:d4c8fe4d9b29 | 130 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 131 | |
justinkim | 0:d4c8fe4d9b29 | 132 | int size = eth->wait_readable(_sock_fd, _blocking ? -1 :_timeout); |
justinkim | 0:d4c8fe4d9b29 | 133 | if (size <= 0) { |
justinkim | 0:d4c8fe4d9b29 | 134 | break; |
justinkim | 0:d4c8fe4d9b29 | 135 | } |
justinkim | 0:d4c8fe4d9b29 | 136 | if (size > (length - readLen)) { |
justinkim | 0:d4c8fe4d9b29 | 137 | size = length - readLen; |
justinkim | 0:d4c8fe4d9b29 | 138 | } |
justinkim | 0:d4c8fe4d9b29 | 139 | int ret = eth->recv(_sock_fd, data + readLen, size); |
justinkim | 0:d4c8fe4d9b29 | 140 | if (ret < 0) { |
justinkim | 0:d4c8fe4d9b29 | 141 | return -1; |
justinkim | 0:d4c8fe4d9b29 | 142 | } |
justinkim | 0:d4c8fe4d9b29 | 143 | readLen += ret; |
justinkim | 0:d4c8fe4d9b29 | 144 | } |
justinkim | 0:d4c8fe4d9b29 | 145 | return readLen; |
justinkim | 0:d4c8fe4d9b29 | 146 | } |