jiang hao / WIZnetInterface

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Dependents:   espyun1

Fork of WIZnetInterface by WIZnet

Socket/TCPSocketConnection.cpp@31:fc14e4330419, 2016-11-04 (annotated)

Committer:
jh_ndm
Date:
Fri Nov 04 07:38:07 2016 +0000
Revision:
31:fc14e4330419
Parent:
30:6feeaebad180 
asdfwe

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Soohwan Kim 0:6f28332c466f 1 /* Copyright (C) 2012 mbed.org, MIT License
Soohwan Kim 0:6f28332c466f 2 *
Soohwan Kim 0:6f28332c466f 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Soohwan Kim 0:6f28332c466f 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
Soohwan Kim 0:6f28332c466f 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
Soohwan Kim 0:6f28332c466f 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
Soohwan Kim 0:6f28332c466f 7 * furnished to do so, subject to the following conditions:
Soohwan Kim 0:6f28332c466f 8 *
Soohwan Kim 0:6f28332c466f 9 * The above copyright notice and this permission notice shall be included in all copies or
Soohwan Kim 0:6f28332c466f 10 * substantial portions of the Software.
Soohwan Kim 0:6f28332c466f 11 *
Soohwan Kim 0:6f28332c466f 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Soohwan Kim 0:6f28332c466f 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Soohwan Kim 0:6f28332c466f 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Soohwan Kim 0:6f28332c466f 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Soohwan Kim 0:6f28332c466f 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Soohwan Kim 0:6f28332c466f 17 */
Soohwan Kim 0:6f28332c466f 18
Soohwan Kim 0:6f28332c466f 19 #include "TCPSocketConnection.h"
Soohwan Kim 0:6f28332c466f 20 #include <cstring>
Soohwan Kim 0:6f28332c466f 21
Soohwan Kim 0:6f28332c466f 22 using std::memset;
Soohwan Kim 0:6f28332c466f 23 using std::memcpy;
Soohwan Kim 0:6f28332c466f 24
Soohwan Kim 0:6f28332c466f 25 // not a big code.
Soohwan Kim 0:6f28332c466f 26 // refer from EthernetInterface by mbed official driver
Soohwan Kim 0:6f28332c466f 27 TCPSocketConnection::TCPSocketConnection() :
Soohwan Kim 0:6f28332c466f 28 _is_connected(false)
Soohwan Kim 0:6f28332c466f 29 {
Soohwan Kim 0:6f28332c466f 30 }
Soohwan Kim 0:6f28332c466f 31
Soohwan Kim 0:6f28332c466f 32 int TCPSocketConnection::connect(const char* host, const int port)
Soohwan Kim 0:6f28332c466f 33 {
jh_ndm 30:6feeaebad180 34 Serial pc5(PA_13,PA_14);
jh_ndm 31:fc14e4330419 35
jh_ndm 30:6feeaebad180 36 pc5.printf("in connect\r\n");
Soohwan Kim 0:6f28332c466f 37 if (_sock_fd < 0) {
jh_ndm 31:fc14e4330419 38 pc5.printf("_sock_fd\r\n");
Soohwan Kim 0:6f28332c466f 39 _sock_fd = eth->new_socket();
jh_ndm 31:fc14e4330419 40 pc5.printf("_sock_fd2\r\n");
Soohwan Kim 0:6f28332c466f 41 if (_sock_fd < 0) {
jh_ndm 30:6feeaebad180 42 pc5.printf("in connect 1 return -1\r\n");
Soohwan Kim 0:6f28332c466f 43 return -1;
Soohwan Kim 0:6f28332c466f 44 }
Soohwan Kim 0:6f28332c466f 45 }
jh_ndm 31:fc14e4330419 46 pc5.printf("in2 connect\r\n");
jh_ndm 31:fc14e4330419 47
Soohwan Kim 0:6f28332c466f 48 if (set_address(host, port) != 0) {
jh_ndm 30:6feeaebad180 49 pc5.printf("in connect 2 return -1\r\n");
Soohwan Kim 0:6f28332c466f 50 return -1;
Soohwan Kim 0:6f28332c466f 51 }
jh_ndm 31:fc14e4330419 52
jh_ndm 31:fc14e4330419 53 pc5.printf("in3 connect\r\n");
jh_ndm 30:6feeaebad180 54 if (!eth->connect(_sock_fd, get_address(), port)) {//should jion the timeout
jh_ndm 30:6feeaebad180 55 pc5.printf("in connect 3 return -1\r\n");
Soohwan Kim 0:6f28332c466f 56 return -1;
Soohwan Kim 0:6f28332c466f 57 }
jh_ndm 31:fc14e4330419 58 pc5.printf("in4 connect\r\n");
Soohwan Kim 0:6f28332c466f 59 set_blocking(false);
Soohwan Kim 0:6f28332c466f 60 // add code refer from EthernetInterface.
Soohwan Kim 0:6f28332c466f 61 _is_connected = true;
jh_ndm 31:fc14e4330419 62 pc5.printf("_is_connected=true\r\n");
Soohwan Kim 0:6f28332c466f 63 return 0;
Soohwan Kim 0:6f28332c466f 64 }
Soohwan Kim 0:6f28332c466f 65
Soohwan Kim 0:6f28332c466f 66 bool TCPSocketConnection::is_connected(void)
Soohwan Kim 0:6f28332c466f 67 {
jh_ndm 30:6feeaebad180 68 Serial pc2(PA_13,PA_14);
jh_ndm 31:fc14e4330419 69
jh_ndm 30:6feeaebad180 70 pc2.printf("in is_connected()\r\n");
Soohwan Kim 0:6f28332c466f 71 // force update recent state.
Soohwan Kim 0:6f28332c466f 72 _is_connected = eth->is_connected(_sock_fd);
Soohwan Kim 0:6f28332c466f 73 return _is_connected;
Soohwan Kim 0:6f28332c466f 74 }
Soohwan Kim 0:6f28332c466f 75
Soohwan Kim 0:6f28332c466f 76 int TCPSocketConnection::send(char* data, int length)
Soohwan Kim 0:6f28332c466f 77 {
Soohwan Kim 0:6f28332c466f 78 if((_sock_fd<0) || !(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 79 return -1;
Soohwan Kim 0:6f28332c466f 80
Soohwan Kim 0:6f28332c466f 81 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout);
Soohwan Kim 0:6f28332c466f 82 if (size < 0)
Soohwan Kim 0:6f28332c466f 83 return -1;
Soohwan Kim 0:6f28332c466f 84
Soohwan Kim 0:6f28332c466f 85 if (size > length)
Soohwan Kim 0:6f28332c466f 86 size = length;
Soohwan Kim 0:6f28332c466f 87
Soohwan Kim 0:6f28332c466f 88 return eth->send(_sock_fd, data, size);
Soohwan Kim 0:6f28332c466f 89 }
Soohwan Kim 0:6f28332c466f 90
Soohwan Kim 0:6f28332c466f 91 // -1 if unsuccessful, else number of bytes written
Soohwan Kim 0:6f28332c466f 92 int TCPSocketConnection::send_all(char* data, int length)
Soohwan Kim 0:6f28332c466f 93 {
Soohwan Kim 0:6f28332c466f 94 int writtenLen = 0;
Soohwan Kim 0:6f28332c466f 95
Soohwan Kim 0:6f28332c466f 96 if(_sock_fd<0)
Soohwan Kim 0:6f28332c466f 97 return -1;
Soohwan Kim 0:6f28332c466f 98
Soohwan Kim 0:6f28332c466f 99 while (writtenLen < length) {
Soohwan Kim 0:6f28332c466f 100
Soohwan Kim 0:6f28332c466f 101 if(!(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 102 return -1;
Soohwan Kim 0:6f28332c466f 103
Soohwan Kim 0:6f28332c466f 104 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout);
Soohwan Kim 0:6f28332c466f 105 if (size < 0) {
Soohwan Kim 0:6f28332c466f 106 return -1;
Soohwan Kim 0:6f28332c466f 107 }
Soohwan Kim 0:6f28332c466f 108 if (size > (length-writtenLen)) {
Soohwan Kim 0:6f28332c466f 109 size = (length-writtenLen);
Soohwan Kim 0:6f28332c466f 110 }
Soohwan Kim 0:6f28332c466f 111 int ret = eth->send(_sock_fd, data + writtenLen, size);
Soohwan Kim 0:6f28332c466f 112 if (ret < 0) {
Soohwan Kim 0:6f28332c466f 113 return -1;
Soohwan Kim 0:6f28332c466f 114 }
Soohwan Kim 0:6f28332c466f 115 writtenLen += ret;
Soohwan Kim 0:6f28332c466f 116 }
Soohwan Kim 0:6f28332c466f 117 return writtenLen;
Soohwan Kim 0:6f28332c466f 118 }
Soohwan Kim 0:6f28332c466f 119
Soohwan Kim 0:6f28332c466f 120 // -1 if unsuccessful, else number of bytes received
Soohwan Kim 0:6f28332c466f 121 int TCPSocketConnection::receive(char* data, int length)
Soohwan Kim 0:6f28332c466f 122 {
Soohwan Kim 0:6f28332c466f 123 if((_sock_fd<0) || !(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 124 return -1;
Soohwan Kim 0:6f28332c466f 125
Soohwan Kim 0:6f28332c466f 126 int size = eth->wait_readable(_sock_fd, _blocking ? -1 : _timeout);
Soohwan Kim 0:6f28332c466f 127 if (size < 0) {
Soohwan Kim 0:6f28332c466f 128 return -1;
Soohwan Kim 0:6f28332c466f 129 }
Soohwan Kim 0:6f28332c466f 130 if (size > length) {
Soohwan Kim 0:6f28332c466f 131 size = length;
Soohwan Kim 0:6f28332c466f 132 }
Soohwan Kim 0:6f28332c466f 133 return eth->recv(_sock_fd, data, size);
Soohwan Kim 0:6f28332c466f 134 }
Soohwan Kim 0:6f28332c466f 135
Soohwan Kim 0:6f28332c466f 136 // -1 if unsuccessful, else number of bytes received
Soohwan Kim 0:6f28332c466f 137 int TCPSocketConnection::receive_all(char* data, int length)
Soohwan Kim 0:6f28332c466f 138 {
Soohwan Kim 0:6f28332c466f 139 if(_sock_fd<0)
Soohwan Kim 0:6f28332c466f 140 return -1;
Soohwan Kim 0:6f28332c466f 141
Soohwan Kim 0:6f28332c466f 142 int readLen = 0;
Soohwan Kim 0:6f28332c466f 143 while (readLen < length) {
Soohwan Kim 0:6f28332c466f 144
Soohwan Kim 0:6f28332c466f 145 if(!(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 146 return -1;
Soohwan Kim 0:6f28332c466f 147
Soohwan Kim 0:6f28332c466f 148 int size = eth->wait_readable(_sock_fd, _blocking ? -1 :_timeout);
Soohwan Kim 0:6f28332c466f 149 if (size <= 0) {
Soohwan Kim 0:6f28332c466f 150 break;
Soohwan Kim 0:6f28332c466f 151 }
Soohwan Kim 0:6f28332c466f 152 if (size > (length - readLen)) {
Soohwan Kim 0:6f28332c466f 153 size = length - readLen;
Soohwan Kim 0:6f28332c466f 154 }
Soohwan Kim 0:6f28332c466f 155 int ret = eth->recv(_sock_fd, data + readLen, size);
Soohwan Kim 0:6f28332c466f 156 if (ret < 0) {
Soohwan Kim 0:6f28332c466f 157 return -1;
Soohwan Kim 0:6f28332c466f 158 }
Soohwan Kim 0:6f28332c466f 159 readLen += ret;
Soohwan Kim 0:6f28332c466f 160 }
Soohwan Kim 0:6f28332c466f 161 return readLen;
Soohwan Kim 0:6f28332c466f 162 }