main.cpp

00001 #include "mbed.h"
00002 #include "test_env.h"
00003 #include "EthernetInterface.h"
00004 #include <algorithm>
00005 
00006 namespace {
00007     const int BUFFER_SIZE = 64;
00008     const int MAX_ECHO_LOOPS = 1000;
00009     const char ASCII_MAX = '~' - ' ';
00010 
00011     struct s_ip_address
00012     {
00013         int ip_1;
00014         int ip_2;
00015         int ip_3;
00016         int ip_4;
00017     };
00018 }
00019 
00020 char char_rand() {
00021     return (rand() % ASCII_MAX) + ' ';
00022 }
00023 
00024 int main() {
00025     MBED_HOSTTEST_TIMEOUT(20);
00026     MBED_HOSTTEST_SELECT(tcpecho_client_auto);
00027     MBED_HOSTTEST_DESCRIPTION(TCP client echo loop);
00028     MBED_HOSTTEST_START("NET_13");
00029 
00030     char buffer[BUFFER_SIZE] = {0};
00031     char out_buffer[BUFFER_SIZE] = {0};
00032     s_ip_address ip_addr = {0, 0, 0, 0};
00033     int port = 0;
00034 
00035     printf("MBED: TCPCllient waiting for server IP and port...\r\n");
00036     scanf("%d.%d.%d.%d:%d", &ip_addr.ip_1, &ip_addr.ip_2, &ip_addr.ip_3, &ip_addr.ip_4, &port);
00037     printf("MBED: Address received: %d.%d.%d.%d:%d\r\n", ip_addr.ip_1, ip_addr.ip_2, ip_addr.ip_3, ip_addr.ip_4, port);
00038 
00039     EthernetInterface eth;
00040     eth.init(); //Use DHCP
00041     eth.connect();
00042 
00043     printf("MBED: TCPClient IP Address is %s\r\n", eth.getIPAddress());
00044     sprintf(buffer, "%d.%d.%d.%d", ip_addr.ip_1, ip_addr.ip_2, ip_addr.ip_3, ip_addr.ip_4);
00045 
00046     TCPSocketConnection socket;
00047     while (socket.connect(buffer, port) < 0) {
00048         printf("MBED: TCPCllient unable to connect to %s:%d\r\n", buffer, port);
00049         wait(1);
00050     }
00051 
00052     // Test loop for multiple client connections
00053     bool result = true;
00054     int count_error = 0;
00055     for (int i = 0; i < MAX_ECHO_LOOPS; i++) {
00056         std::generate(out_buffer, out_buffer + BUFFER_SIZE, char_rand);
00057         socket.send_all(out_buffer, BUFFER_SIZE);
00058 
00059         int n = socket.receive(buffer, BUFFER_SIZE);
00060         if (n > 0)
00061         {
00062             bool echoed = memcmp(out_buffer, buffer, BUFFER_SIZE) == 0;
00063             result = result && echoed;
00064             if (echoed == false) {
00065                 count_error++;  // Count error messages
00066             }
00067         }
00068     }
00069 
00070     printf("MBED: Loop messages passed: %d / %d\r\n", MAX_ECHO_LOOPS - count_error, MAX_ECHO_LOOPS);
00071 
00072     if (notify_completion_str(result, buffer)) {
00073         socket.send_all(buffer, strlen(buffer));
00074     }
00075     socket.close();
00076     eth.disconnect();
00077     MBED_HOSTTEST_RESULT(result);
00078 }