- Added setBaud() function - Added CheckNetworkStatus() function - Improved messaging system
Dependents: IoT_Ex BatteryModelTester BatteryModelTester
Fork of WiflyInterface by
TCPSocketConnection.cpp
00001 /* Copyright (C) 2012 mbed.org, MIT License 00002 * 00003 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 00004 * and associated documentation files (the "Software"), to deal in the Software without restriction, 00005 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 00006 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 00007 * furnished to do so, subject to the following conditions: 00008 * 00009 * The above copyright notice and this permission notice shall be included in all copies or 00010 * substantial portions of the Software. 00011 * 00012 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 00013 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00014 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 00015 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00016 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00017 */ 00018 00019 #include "TCPSocketConnection.h" 00020 #include <algorithm> 00021 00022 TCPSocketConnection::TCPSocketConnection() {} 00023 00024 int TCPSocketConnection::connect(const char* host, const int port) 00025 { 00026 bool result = wifi->connect(host, port); 00027 if (!result) 00028 return -1; 00029 wifi->flush(); 00030 return 0; 00031 } 00032 00033 void TCPSocketConnection::setBaud(int baudrate) 00034 { 00035 wifi->setBaud(baudrate); 00036 wifi->exit(); 00037 return; 00038 } 00039 00040 bool TCPSocketConnection::is_connected(void) 00041 { 00042 return wifi->is_connected(); 00043 } 00044 00045 int TCPSocketConnection::send(char* data, int length) 00046 { 00047 Timer tmr; 00048 00049 if (!_blocking) { 00050 tmr.start(); 00051 while (tmr.read_ms() < _timeout) { 00052 if (wifi->writeable()) 00053 break; 00054 } 00055 if (tmr.read_ms() >= _timeout) { 00056 return -1; 00057 } 00058 } 00059 return wifi->send(data, length); 00060 } 00061 00062 // -1 if unsuccessful, else number of bytes written 00063 int TCPSocketConnection::send_all(char* data, int length) 00064 { 00065 Timer tmr; 00066 int idx = 0; 00067 tmr.start(); 00068 00069 while ((tmr.read_ms() < _timeout) || _blocking) { 00070 00071 idx += wifi->send(data, length); 00072 00073 if (idx == length) 00074 return idx; 00075 } 00076 return (idx == 0) ? -1 : idx; 00077 } 00078 00079 // -1 if unsuccessful, else number of bytes received 00080 int TCPSocketConnection::receive(char* data, int length) 00081 { 00082 Timer tmr; 00083 int time = -1; 00084 00085 00086 if (!_blocking) { 00087 tmr.start(); 00088 while (time < _timeout + 20) { 00089 if (wifi->readable()) { 00090 break; 00091 } 00092 time = tmr.read_ms(); 00093 } 00094 if (time >= _timeout + 20) { 00095 return -1; 00096 } 00097 } 00098 00099 00100 //while(!wifi->readable()); 00101 if(wifi->readable()){ 00102 int nb_available = wifi->readable(); 00103 for (int i = 0; i < min(nb_available, length); i++) { 00104 data[i] = wifi->getc(); 00105 } 00106 00107 return min(nb_available, length); 00108 }else{ 00109 return -1; 00110 } 00111 } 00112 00113 00114 // -1 if unsuccessful, else number of bytes received 00115 int TCPSocketConnection::receive_all(char* data, int length) 00116 { 00117 Timer tmr; 00118 int idx = 0; 00119 int time = -1; 00120 00121 tmr.start(); 00122 00123 while (time < _timeout || _blocking) { 00124 00125 int nb_available = wifi->readable(); 00126 for (int i = 0; i < min(nb_available, length); i++) { 00127 data[idx++] = wifi->getc(); 00128 } 00129 00130 if (idx == length) 00131 break; 00132 00133 time = tmr.read_ms(); 00134 } 00135 00136 return (idx == 0) ? -1 : idx; 00137 }
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