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Dependents:   espyun espyun

Fork of WIZnetInterface by jiang hao

Socket/TCPSocketConnection.cpp@30:6feeaebad180, 2016-11-04 (annotated)

Committer:
jh_ndm
Date:
Fri Nov 04 02:28:28 2016 +0000
Revision:
30:6feeaebad180
Parent:
0:6f28332c466f
Child:
31:f6a5f6d1978b
http to esp

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 30:6feeaebad180 35 pc5.baud(115200);
jh_ndm 30:6feeaebad180 36 pc5.printf("in connect\r\n");
Soohwan Kim 0:6f28332c466f 37 if (_sock_fd < 0) {
Soohwan Kim 0:6f28332c466f 38 _sock_fd = eth->new_socket();
Soohwan Kim 0:6f28332c466f 39 if (_sock_fd < 0) {
jh_ndm 30:6feeaebad180 40 pc5.printf("in connect 1 return -1\r\n");
Soohwan Kim 0:6f28332c466f 41 return -1;
Soohwan Kim 0:6f28332c466f 42 }
Soohwan Kim 0:6f28332c466f 43 }
Soohwan Kim 0:6f28332c466f 44 if (set_address(host, port) != 0) {
jh_ndm 30:6feeaebad180 45 pc5.printf("in connect 2 return -1\r\n");
Soohwan Kim 0:6f28332c466f 46 return -1;
Soohwan Kim 0:6f28332c466f 47 }
jh_ndm 30:6feeaebad180 48 if (!eth->connect(_sock_fd, get_address(), port)) {//should jion the timeout
jh_ndm 30:6feeaebad180 49 pc5.printf("in connect 3 return -1\r\n");
Soohwan Kim 0:6f28332c466f 50 return -1;
Soohwan Kim 0:6f28332c466f 51 }
Soohwan Kim 0:6f28332c466f 52 set_blocking(false);
Soohwan Kim 0:6f28332c466f 53 // add code refer from EthernetInterface.
Soohwan Kim 0:6f28332c466f 54 _is_connected = true;
Soohwan Kim 0:6f28332c466f 55
Soohwan Kim 0:6f28332c466f 56 return 0;
Soohwan Kim 0:6f28332c466f 57 }
Soohwan Kim 0:6f28332c466f 58
Soohwan Kim 0:6f28332c466f 59 bool TCPSocketConnection::is_connected(void)
Soohwan Kim 0:6f28332c466f 60 {
jh_ndm 30:6feeaebad180 61 Serial pc2(PA_13,PA_14);
jh_ndm 30:6feeaebad180 62 pc2.baud(115200);
jh_ndm 30:6feeaebad180 63 pc2.printf("in is_connected()\r\n");
Soohwan Kim 0:6f28332c466f 64 // force update recent state.
Soohwan Kim 0:6f28332c466f 65 _is_connected = eth->is_connected(_sock_fd);
Soohwan Kim 0:6f28332c466f 66 return _is_connected;
Soohwan Kim 0:6f28332c466f 67 }
Soohwan Kim 0:6f28332c466f 68
Soohwan Kim 0:6f28332c466f 69 int TCPSocketConnection::send(char* data, int length)
Soohwan Kim 0:6f28332c466f 70 {
Soohwan Kim 0:6f28332c466f 71 if((_sock_fd<0) || !(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 72 return -1;
Soohwan Kim 0:6f28332c466f 73
Soohwan Kim 0:6f28332c466f 74 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout);
Soohwan Kim 0:6f28332c466f 75 if (size < 0)
Soohwan Kim 0:6f28332c466f 76 return -1;
Soohwan Kim 0:6f28332c466f 77
Soohwan Kim 0:6f28332c466f 78 if (size > length)
Soohwan Kim 0:6f28332c466f 79 size = length;
Soohwan Kim 0:6f28332c466f 80
Soohwan Kim 0:6f28332c466f 81 return eth->send(_sock_fd, data, size);
Soohwan Kim 0:6f28332c466f 82 }
Soohwan Kim 0:6f28332c466f 83
Soohwan Kim 0:6f28332c466f 84 // -1 if unsuccessful, else number of bytes written
Soohwan Kim 0:6f28332c466f 85 int TCPSocketConnection::send_all(char* data, int length)
Soohwan Kim 0:6f28332c466f 86 {
Soohwan Kim 0:6f28332c466f 87 int writtenLen = 0;
Soohwan Kim 0:6f28332c466f 88
Soohwan Kim 0:6f28332c466f 89 if(_sock_fd<0)
Soohwan Kim 0:6f28332c466f 90 return -1;
Soohwan Kim 0:6f28332c466f 91
Soohwan Kim 0:6f28332c466f 92 while (writtenLen < length) {
Soohwan Kim 0:6f28332c466f 93
Soohwan Kim 0:6f28332c466f 94 if(!(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 95 return -1;
Soohwan Kim 0:6f28332c466f 96
Soohwan Kim 0:6f28332c466f 97 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout);
Soohwan Kim 0:6f28332c466f 98 if (size < 0) {
Soohwan Kim 0:6f28332c466f 99 return -1;
Soohwan Kim 0:6f28332c466f 100 }
Soohwan Kim 0:6f28332c466f 101 if (size > (length-writtenLen)) {
Soohwan Kim 0:6f28332c466f 102 size = (length-writtenLen);
Soohwan Kim 0:6f28332c466f 103 }
Soohwan Kim 0:6f28332c466f 104 int ret = eth->send(_sock_fd, data + writtenLen, size);
Soohwan Kim 0:6f28332c466f 105 if (ret < 0) {
Soohwan Kim 0:6f28332c466f 106 return -1;
Soohwan Kim 0:6f28332c466f 107 }
Soohwan Kim 0:6f28332c466f 108 writtenLen += ret;
Soohwan Kim 0:6f28332c466f 109 }
Soohwan Kim 0:6f28332c466f 110 return writtenLen;
Soohwan Kim 0:6f28332c466f 111 }
Soohwan Kim 0:6f28332c466f 112
Soohwan Kim 0:6f28332c466f 113 // -1 if unsuccessful, else number of bytes received
Soohwan Kim 0:6f28332c466f 114 int TCPSocketConnection::receive(char* data, int length)
Soohwan Kim 0:6f28332c466f 115 {
Soohwan Kim 0:6f28332c466f 116 if((_sock_fd<0) || !(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 117 return -1;
Soohwan Kim 0:6f28332c466f 118
Soohwan Kim 0:6f28332c466f 119 int size = eth->wait_readable(_sock_fd, _blocking ? -1 : _timeout);
Soohwan Kim 0:6f28332c466f 120 if (size < 0) {
Soohwan Kim 0:6f28332c466f 121 return -1;
Soohwan Kim 0:6f28332c466f 122 }
Soohwan Kim 0:6f28332c466f 123 if (size > length) {
Soohwan Kim 0:6f28332c466f 124 size = length;
Soohwan Kim 0:6f28332c466f 125 }
Soohwan Kim 0:6f28332c466f 126 return eth->recv(_sock_fd, data, size);
Soohwan Kim 0:6f28332c466f 127 }
Soohwan Kim 0:6f28332c466f 128
Soohwan Kim 0:6f28332c466f 129 // -1 if unsuccessful, else number of bytes received
Soohwan Kim 0:6f28332c466f 130 int TCPSocketConnection::receive_all(char* data, int length)
Soohwan Kim 0:6f28332c466f 131 {
Soohwan Kim 0:6f28332c466f 132 if(_sock_fd<0)
Soohwan Kim 0:6f28332c466f 133 return -1;
Soohwan Kim 0:6f28332c466f 134
Soohwan Kim 0:6f28332c466f 135 int readLen = 0;
Soohwan Kim 0:6f28332c466f 136 while (readLen < length) {
Soohwan Kim 0:6f28332c466f 137
Soohwan Kim 0:6f28332c466f 138 if(!(eth->is_connected(_sock_fd)))
Soohwan Kim 0:6f28332c466f 139 return -1;
Soohwan Kim 0:6f28332c466f 140
Soohwan Kim 0:6f28332c466f 141 int size = eth->wait_readable(_sock_fd, _blocking ? -1 :_timeout);
Soohwan Kim 0:6f28332c466f 142 if (size <= 0) {
Soohwan Kim 0:6f28332c466f 143 break;
Soohwan Kim 0:6f28332c466f 144 }
Soohwan Kim 0:6f28332c466f 145 if (size > (length - readLen)) {
Soohwan Kim 0:6f28332c466f 146 size = length - readLen;
Soohwan Kim 0:6f28332c466f 147 }
Soohwan Kim 0:6f28332c466f 148 int ret = eth->recv(_sock_fd, data + readLen, size);
Soohwan Kim 0:6f28332c466f 149 if (ret < 0) {
Soohwan Kim 0:6f28332c466f 150 return -1;
Soohwan Kim 0:6f28332c466f 151 }
Soohwan Kim 0:6f28332c466f 152 readLen += ret;
Soohwan Kim 0:6f28332c466f 153 }
Soohwan Kim 0:6f28332c466f 154 return readLen;
Soohwan Kim 0:6f28332c466f 155 }