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WIZnetInterface/Socket/TCPSocketConnection.cpp@4:3c94b1ba5411, 2014-10-16 (annotated)

Committer:
slawcio
Date:
Thu Oct 16 09:35:53 2014 +0000
Revision:
4:3c94b1ba5411
Parent:
0:b72d22e10709 
W5100

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UserRevisionLine numberNew contents of line
jbkim 0:b72d22e10709 1 /* Copyright (C) 2012 mbed.org, MIT License
jbkim 0:b72d22e10709 2 *
jbkim 0:b72d22e10709 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
jbkim 0:b72d22e10709 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
jbkim 0:b72d22e10709 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
jbkim 0:b72d22e10709 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
jbkim 0:b72d22e10709 7 * furnished to do so, subject to the following conditions:
jbkim 0:b72d22e10709 8 *
jbkim 0:b72d22e10709 9 * The above copyright notice and this permission notice shall be included in all copies or
jbkim 0:b72d22e10709 10 * substantial portions of the Software.
jbkim 0:b72d22e10709 11 *
jbkim 0:b72d22e10709 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
jbkim 0:b72d22e10709 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
jbkim 0:b72d22e10709 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
jbkim 0:b72d22e10709 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jbkim 0:b72d22e10709 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
jbkim 0:b72d22e10709 17 */
jbkim 0:b72d22e10709 18
jbkim 0:b72d22e10709 19 #include "TCPSocketConnection.h"
jbkim 0:b72d22e10709 20
jbkim 0:b72d22e10709 21 TCPSocketConnection::TCPSocketConnection()
jbkim 0:b72d22e10709 22 {
jbkim 0:b72d22e10709 23 }
jbkim 0:b72d22e10709 24
jbkim 0:b72d22e10709 25 int TCPSocketConnection::connect(const char* host, const int port)
jbkim 0:b72d22e10709 26 {
jbkim 0:b72d22e10709 27 if (_sock_fd < 0) {
jbkim 0:b72d22e10709 28 _sock_fd = eth->new_socket();
jbkim 0:b72d22e10709 29 if (_sock_fd < 0) {
jbkim 0:b72d22e10709 30 return -1;
jbkim 0:b72d22e10709 31 }
jbkim 0:b72d22e10709 32 }
jbkim 0:b72d22e10709 33 if (set_address(host, port) != 0) {
jbkim 0:b72d22e10709 34 return -1;
jbkim 0:b72d22e10709 35 }
jbkim 0:b72d22e10709 36 if (!eth->connect(_sock_fd, get_address(), port)) {
jbkim 0:b72d22e10709 37 return -1;
jbkim 0:b72d22e10709 38 }
jbkim 0:b72d22e10709 39 return 0;
jbkim 0:b72d22e10709 40 }
jbkim 0:b72d22e10709 41
jbkim 0:b72d22e10709 42 bool TCPSocketConnection::is_connected(void)
jbkim 0:b72d22e10709 43 {
jbkim 0:b72d22e10709 44 return eth->is_connected(_sock_fd);
jbkim 0:b72d22e10709 45 }
jbkim 0:b72d22e10709 46
jbkim 0:b72d22e10709 47 int TCPSocketConnection::send(char* data, int length)
jbkim 0:b72d22e10709 48 {
jbkim 0:b72d22e10709 49 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout);
jbkim 0:b72d22e10709 50 if (size < 0) {
jbkim 0:b72d22e10709 51 return -1;
jbkim 0:b72d22e10709 52 }
jbkim 0:b72d22e10709 53 if (size > length) {
jbkim 0:b72d22e10709 54 size = length;
jbkim 0:b72d22e10709 55 }
jbkim 0:b72d22e10709 56 return eth->send(_sock_fd, data, size);
jbkim 0:b72d22e10709 57 }
jbkim 0:b72d22e10709 58
jbkim 0:b72d22e10709 59 // -1 if unsuccessful, else number of bytes written
jbkim 0:b72d22e10709 60 int TCPSocketConnection::send_all(char* data, int length)
jbkim 0:b72d22e10709 61 {
jbkim 0:b72d22e10709 62 int writtenLen = 0;
jbkim 0:b72d22e10709 63 while (writtenLen < length) {
jbkim 0:b72d22e10709 64 int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout);
jbkim 0:b72d22e10709 65 if (size < 0) {
jbkim 0:b72d22e10709 66 return -1;
jbkim 0:b72d22e10709 67 }
jbkim 0:b72d22e10709 68 if (size > (length-writtenLen)) {
jbkim 0:b72d22e10709 69 size = (length-writtenLen);
jbkim 0:b72d22e10709 70 }
jbkim 0:b72d22e10709 71 int ret = eth->send(_sock_fd, data + writtenLen, size);
jbkim 0:b72d22e10709 72 if (ret < 0) {
jbkim 0:b72d22e10709 73 return -1;
jbkim 0:b72d22e10709 74 }
jbkim 0:b72d22e10709 75 writtenLen += ret;
jbkim 0:b72d22e10709 76 }
jbkim 0:b72d22e10709 77 return writtenLen;
jbkim 0:b72d22e10709 78 }
jbkim 0:b72d22e10709 79
jbkim 0:b72d22e10709 80 // -1 if unsuccessful, else number of bytes received
jbkim 0:b72d22e10709 81 int TCPSocketConnection::receive(char* data, int length)
jbkim 0:b72d22e10709 82 {
jbkim 0:b72d22e10709 83 int size = eth->wait_readable(_sock_fd, _blocking ? -1 : _timeout);
jbkim 0:b72d22e10709 84 if (size < 0) {
jbkim 0:b72d22e10709 85 return -1;
jbkim 0:b72d22e10709 86 }
jbkim 0:b72d22e10709 87 if (size > length) {
jbkim 0:b72d22e10709 88 size = length;
jbkim 0:b72d22e10709 89 }
jbkim 0:b72d22e10709 90 return eth->recv(_sock_fd, data, size);
jbkim 0:b72d22e10709 91 }
jbkim 0:b72d22e10709 92
jbkim 0:b72d22e10709 93 // -1 if unsuccessful, else number of bytes received
jbkim 0:b72d22e10709 94 int TCPSocketConnection::receive_all(char* data, int length)
jbkim 0:b72d22e10709 95 {
jbkim 0:b72d22e10709 96 int readLen = 0;
jbkim 0:b72d22e10709 97 while (readLen < length) {
jbkim 0:b72d22e10709 98 int size = eth->wait_readable(_sock_fd, _blocking ? -1 :_timeout);
jbkim 0:b72d22e10709 99 if (size <= 0) {
jbkim 0:b72d22e10709 100 break;
jbkim 0:b72d22e10709 101 }
jbkim 0:b72d22e10709 102 if (size > (length - readLen)) {
jbkim 0:b72d22e10709 103 size = length - readLen;
jbkim 0:b72d22e10709 104 }
jbkim 0:b72d22e10709 105 int ret = eth->recv(_sock_fd, data + readLen, size);
jbkim 0:b72d22e10709 106 if (ret < 0) {
jbkim 0:b72d22e10709 107 return -1;
jbkim 0:b72d22e10709 108 }
jbkim 0:b72d22e10709 109 readLen += ret;
jbkim 0:b72d22e10709 110 }
jbkim 0:b72d22e10709 111 return readLen;
jbkim 0:b72d22e10709 112 }
jbkim 0:b72d22e10709 113