Roberto Herrera / Socket

SocketGUS

Fork of Socket by mbed official

TCPSocketConnection.cpp@20:f23c3d6c4bc8, 2015-12-05 (annotated)

Committer:
RoHe
Date:
Sat Dec 05 17:41:50 2015 +0000
Revision:
20:f23c3d6c4bc8
Parent:
19:434906b5b977 
MainTask GUS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 3:e6474399e057 1 /* Copyright (C) 2012 mbed.org, MIT License
emilmont 3:e6474399e057 2 *
emilmont 3:e6474399e057 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
emilmont 3:e6474399e057 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
emilmont 3:e6474399e057 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
emilmont 3:e6474399e057 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
emilmont 3:e6474399e057 7 * furnished to do so, subject to the following conditions:
emilmont 3:e6474399e057 8 *
emilmont 3:e6474399e057 9 * The above copyright notice and this permission notice shall be included in all copies or
emilmont 3:e6474399e057 10 * substantial portions of the Software.
emilmont 3:e6474399e057 11 *
emilmont 3:e6474399e057 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
emilmont 3:e6474399e057 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
emilmont 3:e6474399e057 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
emilmont 3:e6474399e057 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 3:e6474399e057 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
emilmont 3:e6474399e057 17 */
emilmont 3:e6474399e057 18 #include "TCPSocketConnection.h"
emilmont 3:e6474399e057 19 #include <cstring>
emilmont 3:e6474399e057 20
emilmont 3:e6474399e057 21 using std::memset;
emilmont 3:e6474399e057 22 using std::memcpy;
emilmont 3:e6474399e057 23
emilmont 3:e6474399e057 24 TCPSocketConnection::TCPSocketConnection() :
RoHe 20:f23c3d6c4bc8 25 _is_connected(false)
RoHe 20:f23c3d6c4bc8 26 {
emilmont 3:e6474399e057 27 }
emilmont 3:e6474399e057 28
RoHe 20:f23c3d6c4bc8 29 int TCPSocketConnection::connect(const char* host, const int port)
RoHe 20:f23c3d6c4bc8 30 {
emilmont 5:300e7ad2dc1d 31 if (init_socket(SOCK_STREAM) < 0)
emilmont 3:e6474399e057 32 return -1;
RoHe 20:f23c3d6c4bc8 33 //quitar else
RoHe 20:f23c3d6c4bc8 34 else if (set_address(host, port) != 0)
emilmont 5:300e7ad2dc1d 35 return -1;
RoHe 20:f23c3d6c4bc8 36 //quitar else
RoHe 20:f23c3d6c4bc8 37 else if (lwip_connect(_sock_fd, (const struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
emilmont 3:e6474399e057 38 close();
emilmont 3:e6474399e057 39 return -1;
RoHe 20:f23c3d6c4bc8 40 } else {//quitar else
RoHe 20:f23c3d6c4bc8 41 _is_connected = true;
RoHe 20:f23c3d6c4bc8 42 return 0;
RoHe 20:f23c3d6c4bc8 43 }//quitar
emilmont 3:e6474399e057 44 }
emilmont 3:e6474399e057 45
RoHe 20:f23c3d6c4bc8 46 bool TCPSocketConnection::is_connected(void)
RoHe 20:f23c3d6c4bc8 47 {
emilmont 11:3d83c348fb8b 48 return _is_connected;
emilmont 11:3d83c348fb8b 49 }
emilmont 11:3d83c348fb8b 50
RoHe 20:f23c3d6c4bc8 51 int TCPSocketConnection::send(char* data, int length)
RoHe 20:f23c3d6c4bc8 52 {
emilmont 11:3d83c348fb8b 53 if ((_sock_fd < 0) || !_is_connected)
emilmont 3:e6474399e057 54 return -1;
RoHe 20:f23c3d6c4bc8 55
emilmont 10:d24738f4ef99 56 if (!_blocking) {
emilmont 10:d24738f4ef99 57 TimeInterval timeout(_timeout);
emilmont 10:d24738f4ef99 58 if (wait_writable(timeout) != 0)
emilmont 10:d24738f4ef99 59 return -1;
emilmont 10:d24738f4ef99 60 }
RoHe 20:f23c3d6c4bc8 61
emilmont 3:e6474399e057 62 int n = lwip_send(_sock_fd, data, length, 0);
emilmont 11:3d83c348fb8b 63 _is_connected = (n != 0);
RoHe 20:f23c3d6c4bc8 64
emilmont 3:e6474399e057 65 return n;
emilmont 3:e6474399e057 66 }
emilmont 3:e6474399e057 67
emilmont 3:e6474399e057 68 // -1 if unsuccessful, else number of bytes written
RoHe 20:f23c3d6c4bc8 69 int TCPSocketConnection::send_all(char* data, int length)
RoHe 20:f23c3d6c4bc8 70 {
emilmont 11:3d83c348fb8b 71 if ((_sock_fd < 0) || !_is_connected)
emilmont 3:e6474399e057 72 return -1;
RoHe 20:f23c3d6c4bc8 73
bogdanm 19:434906b5b977 74 int writtenLen = 0;
emilmont 10:d24738f4ef99 75 TimeInterval timeout(_timeout);
emilmont 3:e6474399e057 76 while (writtenLen < length) {
emilmont 10:d24738f4ef99 77 if (!_blocking) {
emilmont 10:d24738f4ef99 78 // Wait for socket to be writeable
emilmont 10:d24738f4ef99 79 if (wait_writable(timeout) != 0)
emilmont 11:3d83c348fb8b 80 return writtenLen;
emilmont 10:d24738f4ef99 81 }
RoHe 20:f23c3d6c4bc8 82
emilmont 3:e6474399e057 83 int ret = lwip_send(_sock_fd, data + writtenLen, length - writtenLen, 0);
emilmont 3:e6474399e057 84 if (ret > 0) {
emilmont 3:e6474399e057 85 writtenLen += ret;
emilmont 3:e6474399e057 86 continue;
emilmont 3:e6474399e057 87 } else if (ret == 0) {
emilmont 11:3d83c348fb8b 88 _is_connected = false;
emilmont 11:3d83c348fb8b 89 return writtenLen;
emilmont 3:e6474399e057 90 } else {
emilmont 3:e6474399e057 91 return -1; //Connnection error
emilmont 3:e6474399e057 92 }
emilmont 3:e6474399e057 93 }
emilmont 3:e6474399e057 94 return writtenLen;
emilmont 3:e6474399e057 95 }
emilmont 3:e6474399e057 96
RoHe 20:f23c3d6c4bc8 97 int TCPSocketConnection::receive(char* data, int length)
RoHe 20:f23c3d6c4bc8 98 {
emilmont 11:3d83c348fb8b 99 if ((_sock_fd < 0) || !_is_connected)
emilmont 3:e6474399e057 100 return -1;
RoHe 20:f23c3d6c4bc8 101
emilmont 10:d24738f4ef99 102 if (!_blocking) {
emilmont 10:d24738f4ef99 103 TimeInterval timeout(_timeout);
emilmont 10:d24738f4ef99 104 if (wait_readable(timeout) != 0)
emilmont 10:d24738f4ef99 105 return -1;
emilmont 10:d24738f4ef99 106 }
RoHe 20:f23c3d6c4bc8 107
emilmont 3:e6474399e057 108 int n = lwip_recv(_sock_fd, data, length, 0);
emilmont 11:3d83c348fb8b 109 _is_connected = (n != 0);
RoHe 20:f23c3d6c4bc8 110
emilmont 3:e6474399e057 111 return n;
emilmont 3:e6474399e057 112 }
emilmont 3:e6474399e057 113
emilmont 3:e6474399e057 114 // -1 if unsuccessful, else number of bytes received
RoHe 20:f23c3d6c4bc8 115 int TCPSocketConnection::receive_all(char* data, int length)
RoHe 20:f23c3d6c4bc8 116 {
emilmont 11:3d83c348fb8b 117 if ((_sock_fd < 0) || !_is_connected)
emilmont 3:e6474399e057 118 return -1;
RoHe 20:f23c3d6c4bc8 119
bogdanm 19:434906b5b977 120 int readLen = 0;
emilmont 10:d24738f4ef99 121 TimeInterval timeout(_timeout);
emilmont 3:e6474399e057 122 while (readLen < length) {
emilmont 10:d24738f4ef99 123 if (!_blocking) {
emilmont 10:d24738f4ef99 124 //Wait for socket to be readable
emilmont 10:d24738f4ef99 125 if (wait_readable(timeout) != 0)
emilmont 11:3d83c348fb8b 126 return readLen;
emilmont 10:d24738f4ef99 127 }
RoHe 20:f23c3d6c4bc8 128
emilmont 3:e6474399e057 129 int ret = lwip_recv(_sock_fd, data + readLen, length - readLen, 0);
emilmont 3:e6474399e057 130 if (ret > 0) {
emilmont 3:e6474399e057 131 readLen += ret;
emilmont 3:e6474399e057 132 } else if (ret == 0) {
emilmont 11:3d83c348fb8b 133 _is_connected = false;
emilmont 11:3d83c348fb8b 134 return readLen;
emilmont 3:e6474399e057 135 } else {
emilmont 3:e6474399e057 136 return -1; //Connnection error
emilmont 3:e6474399e057 137 }
emilmont 3:e6474399e057 138 }
emilmont 3:e6474399e057 139 return readLen;
emilmont 3:e6474399e057 140 }