main.cpp

00001 /*
00002  * Copyright (c) 2013-2017, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018  #ifndef MBED_CONF_APP_CONNECT_STATEMENT
00019      #error [NOT_SUPPORTED] No network configuration found for this target.
00020  #endif
00021 
00022 #ifndef MBED_EXTENDED_TESTS
00023     #error [NOT_SUPPORTED] Parallel tests are not supported by default
00024 #endif
00025 
00026 #include "mbed.h"
00027 #include MBED_CONF_APP_HEADER_FILE
00028 #include "TCPSocket.h"
00029 #include "greentea-client/test_env.h"
00030 #include "unity/unity.h"
00031 #include "utest.h"
00032 
00033 using namespace utest::v1;
00034 
00035 
00036 #ifndef MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE
00037 #define MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE 64
00038 #endif
00039 
00040 #ifndef MBED_CFG_TCP_CLIENT_ECHO_THREADS
00041 #define MBED_CFG_TCP_CLIENT_ECHO_THREADS 3
00042 #endif
00043 
00044 #define STRINGIZE(x) STRINGIZE2(x)
00045 #define STRINGIZE2(x) #x
00046 
00047 
00048 NetworkInterface* net;
00049 SocketAddress tcp_addr;
00050 Mutex iomutex;
00051 
00052 void prep_buffer(char *tx_buffer, size_t tx_size) {
00053     for (size_t i=0; i<tx_size; ++i) {
00054         tx_buffer[i] = (rand() % 10) + '0';
00055     }
00056 }
00057 
00058 
00059 // Each echo class is in charge of one parallel transaction
00060 class Echo {
00061 private:
00062     char tx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE];
00063     char rx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE];
00064 
00065     TCPSocket sock;
00066     Thread thread;
00067 
00068 public:
00069     // Limiting stack size to 1k
00070     Echo(): thread(osPriorityNormal, 1024) {
00071     }
00072 
00073     void start() {
00074         osStatus status = thread.start(callback(this, &Echo::echo));
00075         TEST_ASSERT_EQUAL(osOK, status);
00076     }
00077 
00078     void join() {
00079         osStatus status = thread.join();
00080         TEST_ASSERT_EQUAL(osOK, status);
00081     }
00082 
00083     void echo() {
00084         int err = sock.open(net);
00085         TEST_ASSERT_EQUAL(0, err);
00086 
00087         err = sock.connect(tcp_addr);
00088         TEST_ASSERT_EQUAL(0, err);
00089 
00090         //recv connection prefix message
00091         sock.recv(rx_buffer, sizeof(MBED_CONF_APP_TCP_ECHO_PREFIX));
00092         memset(rx_buffer, 0, sizeof(rx_buffer));
00093 
00094         iomutex.lock();
00095         printf("HTTP: Connected to %s:%d\r\n",
00096                 tcp_addr.get_ip_address(), tcp_addr.get_port());
00097         printf("tx_buffer buffer size: %u\r\n", sizeof(tx_buffer));
00098         printf("rx_buffer buffer size: %u\r\n", sizeof(rx_buffer));
00099         iomutex.unlock();
00100 
00101         prep_buffer(tx_buffer, sizeof(tx_buffer));
00102         sock.send(tx_buffer, sizeof(tx_buffer));
00103 
00104         // Server will respond with HTTP GET's success code
00105         const int ret = sock.recv(rx_buffer, sizeof(rx_buffer));
00106         bool result = !memcmp(tx_buffer, rx_buffer, sizeof(tx_buffer));
00107         TEST_ASSERT_EQUAL(ret, sizeof(rx_buffer));
00108         TEST_ASSERT_EQUAL(true, result);
00109 
00110         err = sock.close();
00111         TEST_ASSERT_EQUAL(0, err);
00112     }
00113 };
00114 
00115 Echo *echoers[MBED_CFG_TCP_CLIENT_ECHO_THREADS];
00116 
00117 
00118 void test_tcp_echo_parallel() {
00119     net = MBED_CONF_APP_OBJECT_CONSTRUCTION;
00120     int err =  MBED_CONF_APP_CONNECT_STATEMENT;
00121     TEST_ASSERT_EQUAL(0, err);
00122 
00123     printf("MBED: TCPClient IP address is '%s'\n", net->get_ip_address());
00124 
00125     tcp_addr.set_ip_address(MBED_CONF_APP_ECHO_SERVER_ADDR);
00126     tcp_addr.set_port(MBED_CONF_APP_ECHO_SERVER_PORT);
00127 
00128     // Startup echo threads in parallel
00129     for (int i = 0; i < MBED_CFG_TCP_CLIENT_ECHO_THREADS; i++) {
00130         echoers[i] = new Echo;
00131         echoers[i]->start();
00132     }
00133 
00134     for (int i = 0; i < MBED_CFG_TCP_CLIENT_ECHO_THREADS; i++) {
00135         echoers[i]->join();
00136         delete echoers[i];
00137     }
00138 
00139     net->disconnect();
00140 }
00141 
00142 // Test setup
00143 utest::v1::status_t test_setup(const size_t number_of_cases) {
00144     GREENTEA_SETUP(120, "tcp_echo");
00145     return verbose_test_setup_handler(number_of_cases);
00146 }
00147 
00148 Case cases[] = {
00149     Case("TCP echo parallel", test_tcp_echo_parallel),
00150 };
00151 
00152 Specification specification(test_setup, cases);
00153 
00154 int main() {
00155     return !Harness::run(specification);
00156 }