main.cpp

00001 #ifndef MBED_EXTENDED_TESTS
00002     #error [NOT_SUPPORTED] Parallel tests are not supported by default
00003 #endif
00004 
00005 #include "mbed.h"
00006 #include "ESP8266Interface.h"
00007 #include "TCPSocket.h"
00008 #include "greentea-client/test_env.h"
00009 #include "unity/unity.h"
00010 #include "utest.h"
00011 
00012 using namespace utest::v1;
00013 
00014 
00015 #ifndef MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE
00016 #define MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE 64
00017 #endif
00018 
00019 #ifndef MBED_CFG_TCP_CLIENT_ECHO_THREADS
00020 #define MBED_CFG_TCP_CLIENT_ECHO_THREADS 3
00021 #endif
00022 
00023 #ifndef MBED_CFG_ESP8266_TX
00024 #define MBED_CFG_ESP8266_TX D1
00025 #endif
00026 
00027 #ifndef MBED_CFG_ESP8266_RX
00028 #define MBED_CFG_ESP8266_RX D0
00029 #endif
00030 
00031 #ifndef MBED_CFG_ESP8266_DEBUG
00032 #define MBED_CFG_ESP8266_DEBUG false
00033 #endif
00034 
00035 #define STRINGIZE(x) STRINGIZE2(x)
00036 #define STRINGIZE2(x) #x
00037 
00038 
00039 ESP8266Interface net(MBED_CFG_ESP8266_TX, MBED_CFG_ESP8266_RX, MBED_CFG_ESP8266_DEBUG);
00040 SocketAddress tcp_addr;
00041 Mutex iomutex;
00042 
00043 void prep_buffer(char *tx_buffer, size_t tx_size) {
00044     for (size_t i=0; i<tx_size; ++i) {
00045         tx_buffer[i] = (rand() % 10) + '0';
00046     }
00047 }
00048 
00049 
00050 // Each echo class is in charge of one parallel transaction
00051 class Echo {
00052 private:
00053     char tx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE];
00054     char rx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE];
00055 
00056     TCPSocket sock;
00057     Thread thread;
00058 
00059 public:
00060     // Limiting stack size to 1k
00061     Echo(): thread(osPriorityNormal, 1024) {
00062     }
00063 
00064     void start() {
00065         osStatus status = thread.start(callback(this, &Echo::echo));
00066         TEST_ASSERT_EQUAL(osOK, status);
00067     }
00068 
00069     void join() {
00070         osStatus status = thread.join();
00071         TEST_ASSERT_EQUAL(osOK, status);
00072     }
00073 
00074     void echo() {
00075         int err = sock.open(&net);
00076         TEST_ASSERT_EQUAL(0, err);
00077 
00078         err = sock.connect(tcp_addr);
00079         TEST_ASSERT_EQUAL(0, err);
00080 
00081         iomutex.lock();
00082         printf("HTTP: Connected to %s:%d\r\n",
00083                 tcp_addr.get_ip_address(), tcp_addr.get_port());
00084         printf("tx_buffer buffer size: %u\r\n", sizeof(tx_buffer));
00085         printf("rx_buffer buffer size: %u\r\n", sizeof(rx_buffer));
00086         iomutex.unlock();
00087 
00088         prep_buffer(tx_buffer, sizeof(tx_buffer));
00089         sock.send(tx_buffer, sizeof(tx_buffer));
00090 
00091         // Server will respond with HTTP GET's success code
00092         const int ret = sock.recv(rx_buffer, sizeof(rx_buffer));
00093         bool result = !memcmp(tx_buffer, rx_buffer, sizeof(tx_buffer));
00094         TEST_ASSERT_EQUAL(ret, sizeof(rx_buffer));
00095         TEST_ASSERT_EQUAL(true, result);
00096 
00097         err = sock.close();
00098         TEST_ASSERT_EQUAL(0, err);
00099     }
00100 };
00101 
00102 Echo *echoers[MBED_CFG_TCP_CLIENT_ECHO_THREADS];
00103 
00104 
00105 void test_tcp_echo_parallel() {
00106     int err = net.connect(STRINGIZE(MBED_CFG_ESP8266_SSID), STRINGIZE(MBED_CFG_ESP8266_PASS));
00107     TEST_ASSERT_EQUAL(0, err);
00108 
00109     printf("MBED: TCPClient IP address is '%s'\n", net.get_ip_address());
00110     printf("MBED: TCPClient waiting for server IP and port...\n");
00111 
00112     greentea_send_kv("target_ip", net.get_ip_address());
00113 
00114     char recv_key[] = "host_port";
00115     char ipbuf[60] = {0};
00116     char portbuf[16] = {0};
00117     unsigned int port = 0;
00118 
00119     greentea_send_kv("host_ip", " ");
00120     greentea_parse_kv(recv_key, ipbuf, sizeof(recv_key), sizeof(ipbuf));
00121 
00122     greentea_send_kv("host_port", " ");
00123     greentea_parse_kv(recv_key, portbuf, sizeof(recv_key), sizeof(ipbuf));
00124     sscanf(portbuf, "%u", &port);
00125 
00126     printf("MBED: Server IP address received: %s:%d \n", ipbuf, port);
00127     tcp_addr.set_ip_address(ipbuf);
00128     tcp_addr.set_port(port);
00129 
00130     // Startup echo threads in parallel
00131     for (int i = 0; i < MBED_CFG_TCP_CLIENT_ECHO_THREADS; i++) {
00132         echoers[i] = new Echo;
00133         echoers[i]->start();
00134     }
00135 
00136     for (int i = 0; i < MBED_CFG_TCP_CLIENT_ECHO_THREADS; i++) {
00137         echoers[i]->join();
00138         delete echoers[i];
00139     }
00140 
00141     net.disconnect();
00142 }
00143 
00144 // Test setup
00145 utest::v1::status_t test_setup(const size_t number_of_cases) {
00146     GREENTEA_SETUP(120, "tcp_echo");
00147     return verbose_test_setup_handler(number_of_cases);
00148 }
00149 
00150 Case cases[] = {
00151     Case("TCP echo parallel", test_tcp_echo_parallel),
00152 };
00153 
00154 Specification specification(test_setup, cases);
00155 
00156 int main() {
00157     return !Harness::run(specification);
00158 }
00159