Jim Flynn / Mbed OS wifi_Example

wifi test

Dependencies:   X_NUCLEO_IKS01A2 mbed-http

easy-connect/esp8266-driver/TESTS/net/tcp_packet_pressure/main.cpp@0:24d3eb812fd4, 2018-09-05 (annotated)

Committer:
JMF
Date:
Wed Sep 05 14:28:24 2018 +0000
Revision:
0:24d3eb812fd4
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 0:24d3eb812fd4 1 #ifndef MBED_EXTENDED_TESTS
JMF 0:24d3eb812fd4 2 #error [NOT_SUPPORTED] Pressure tests are not supported by default
JMF 0:24d3eb812fd4 3 #endif
JMF 0:24d3eb812fd4 4
JMF 0:24d3eb812fd4 5 #include "mbed.h"
JMF 0:24d3eb812fd4 6 #include "ESP8266Interface.h"
JMF 0:24d3eb812fd4 7 #include "TCPSocket.h"
JMF 0:24d3eb812fd4 8 #include "greentea-client/test_env.h"
JMF 0:24d3eb812fd4 9 #include "unity/unity.h"
JMF 0:24d3eb812fd4 10 #include "utest.h"
JMF 0:24d3eb812fd4 11
JMF 0:24d3eb812fd4 12 using namespace utest::v1;
JMF 0:24d3eb812fd4 13
JMF 0:24d3eb812fd4 14
JMF 0:24d3eb812fd4 15 #ifndef MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MIN
JMF 0:24d3eb812fd4 16 #define MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MIN 64
JMF 0:24d3eb812fd4 17 #endif
JMF 0:24d3eb812fd4 18
JMF 0:24d3eb812fd4 19 #ifndef MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MAX
JMF 0:24d3eb812fd4 20 #define MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MAX 0x80000
JMF 0:24d3eb812fd4 21 #endif
JMF 0:24d3eb812fd4 22
JMF 0:24d3eb812fd4 23 #ifndef MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_SEED
JMF 0:24d3eb812fd4 24 #define MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_SEED 0x6d626564
JMF 0:24d3eb812fd4 25 #endif
JMF 0:24d3eb812fd4 26
JMF 0:24d3eb812fd4 27 #ifndef MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_DEBUG
JMF 0:24d3eb812fd4 28 #define MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_DEBUG false
JMF 0:24d3eb812fd4 29 #endif
JMF 0:24d3eb812fd4 30
JMF 0:24d3eb812fd4 31 #ifndef MBED_CFG_ESP8266_TX
JMF 0:24d3eb812fd4 32 #define MBED_CFG_ESP8266_TX D1
JMF 0:24d3eb812fd4 33 #endif
JMF 0:24d3eb812fd4 34
JMF 0:24d3eb812fd4 35 #ifndef MBED_CFG_ESP8266_RX
JMF 0:24d3eb812fd4 36 #define MBED_CFG_ESP8266_RX D0
JMF 0:24d3eb812fd4 37 #endif
JMF 0:24d3eb812fd4 38
JMF 0:24d3eb812fd4 39 #ifndef MBED_CFG_ESP8266_DEBUG
JMF 0:24d3eb812fd4 40 #define MBED_CFG_ESP8266_DEBUG false
JMF 0:24d3eb812fd4 41 #endif
JMF 0:24d3eb812fd4 42
JMF 0:24d3eb812fd4 43 #define STRINGIZE(x) STRINGIZE2(x)
JMF 0:24d3eb812fd4 44 #define STRINGIZE2(x) #x
JMF 0:24d3eb812fd4 45
JMF 0:24d3eb812fd4 46
JMF 0:24d3eb812fd4 47 // Simple xorshift pseudorandom number generator
JMF 0:24d3eb812fd4 48 class RandSeq {
JMF 0:24d3eb812fd4 49 private:
JMF 0:24d3eb812fd4 50 uint32_t x;
JMF 0:24d3eb812fd4 51 uint32_t y;
JMF 0:24d3eb812fd4 52 static const int A = 15;
JMF 0:24d3eb812fd4 53 static const int B = 18;
JMF 0:24d3eb812fd4 54 static const int C = 11;
JMF 0:24d3eb812fd4 55
JMF 0:24d3eb812fd4 56 public:
JMF 0:24d3eb812fd4 57 RandSeq(uint32_t seed=MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_SEED)
JMF 0:24d3eb812fd4 58 : x(seed), y(seed) {}
JMF 0:24d3eb812fd4 59
JMF 0:24d3eb812fd4 60 uint32_t next(void) {
JMF 0:24d3eb812fd4 61 x ^= x << A;
JMF 0:24d3eb812fd4 62 x ^= x >> B;
JMF 0:24d3eb812fd4 63 x ^= y ^ (y >> C);
JMF 0:24d3eb812fd4 64 return x + y;
JMF 0:24d3eb812fd4 65 }
JMF 0:24d3eb812fd4 66
JMF 0:24d3eb812fd4 67 void skip(size_t size) {
JMF 0:24d3eb812fd4 68 for (size_t i = 0; i < size; i++) {
JMF 0:24d3eb812fd4 69 next();
JMF 0:24d3eb812fd4 70 }
JMF 0:24d3eb812fd4 71 }
JMF 0:24d3eb812fd4 72
JMF 0:24d3eb812fd4 73 void buffer(uint8_t *buffer, size_t size) {
JMF 0:24d3eb812fd4 74 RandSeq lookahead = *this;
JMF 0:24d3eb812fd4 75
JMF 0:24d3eb812fd4 76 for (size_t i = 0; i < size; i++) {
JMF 0:24d3eb812fd4 77 buffer[i] = lookahead.next() & 0xff;
JMF 0:24d3eb812fd4 78 }
JMF 0:24d3eb812fd4 79 }
JMF 0:24d3eb812fd4 80
JMF 0:24d3eb812fd4 81 int cmp(uint8_t *buffer, size_t size) {
JMF 0:24d3eb812fd4 82 RandSeq lookahead = *this;
JMF 0:24d3eb812fd4 83
JMF 0:24d3eb812fd4 84 for (size_t i = 0; i < size; i++) {
JMF 0:24d3eb812fd4 85 int diff = buffer[i] - (lookahead.next() & 0xff);
JMF 0:24d3eb812fd4 86 if (diff != 0) {
JMF 0:24d3eb812fd4 87 return diff;
JMF 0:24d3eb812fd4 88 }
JMF 0:24d3eb812fd4 89 }
JMF 0:24d3eb812fd4 90 return 0;
JMF 0:24d3eb812fd4 91 }
JMF 0:24d3eb812fd4 92 };
JMF 0:24d3eb812fd4 93
JMF 0:24d3eb812fd4 94 // Shared buffer for network transactions
JMF 0:24d3eb812fd4 95 uint8_t *buffer;
JMF 0:24d3eb812fd4 96 size_t buffer_size;
JMF 0:24d3eb812fd4 97
JMF 0:24d3eb812fd4 98 // Tries to get the biggest buffer possible on the device. Exponentially
JMF 0:24d3eb812fd4 99 // grows a buffer until heap runs out of space, and uses half to leave
JMF 0:24d3eb812fd4 100 // space for the rest of the program
JMF 0:24d3eb812fd4 101 void generate_buffer(uint8_t **buffer, size_t *size, size_t min, size_t max) {
JMF 0:24d3eb812fd4 102 size_t i = min;
JMF 0:24d3eb812fd4 103 while (i < max) {
JMF 0:24d3eb812fd4 104 void *b = malloc(i);
JMF 0:24d3eb812fd4 105 if (!b) {
JMF 0:24d3eb812fd4 106 i /= 4;
JMF 0:24d3eb812fd4 107 if (i < min) {
JMF 0:24d3eb812fd4 108 i = min;
JMF 0:24d3eb812fd4 109 }
JMF 0:24d3eb812fd4 110 break;
JMF 0:24d3eb812fd4 111 }
JMF 0:24d3eb812fd4 112 free(b);
JMF 0:24d3eb812fd4 113 i *= 2;
JMF 0:24d3eb812fd4 114 }
JMF 0:24d3eb812fd4 115
JMF 0:24d3eb812fd4 116 *buffer = (uint8_t *)malloc(i);
JMF 0:24d3eb812fd4 117 *size = i;
JMF 0:24d3eb812fd4 118 TEST_ASSERT(buffer);
JMF 0:24d3eb812fd4 119 }
JMF 0:24d3eb812fd4 120
JMF 0:24d3eb812fd4 121
JMF 0:24d3eb812fd4 122 void test_tcp_packet_pressure() {
JMF 0:24d3eb812fd4 123 generate_buffer(&buffer, &buffer_size,
JMF 0:24d3eb812fd4 124 MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MIN,
JMF 0:24d3eb812fd4 125 MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MAX);
JMF 0:24d3eb812fd4 126 printf("MBED: Generated buffer %d\r\n", buffer_size);
JMF 0:24d3eb812fd4 127
JMF 0:24d3eb812fd4 128 ESP8266Interface net(MBED_CFG_ESP8266_TX, MBED_CFG_ESP8266_RX, MBED_CFG_ESP8266_DEBUG);
JMF 0:24d3eb812fd4 129 int err = net.connect(STRINGIZE(MBED_CFG_ESP8266_SSID), STRINGIZE(MBED_CFG_ESP8266_PASS));
JMF 0:24d3eb812fd4 130 TEST_ASSERT_EQUAL(0, err);
JMF 0:24d3eb812fd4 131
JMF 0:24d3eb812fd4 132 printf("MBED: TCPClient IP address is '%s'\n", net.get_ip_address());
JMF 0:24d3eb812fd4 133 printf("MBED: TCPClient waiting for server IP and port...\n");
JMF 0:24d3eb812fd4 134
JMF 0:24d3eb812fd4 135 greentea_send_kv("target_ip", net.get_ip_address());
JMF 0:24d3eb812fd4 136
JMF 0:24d3eb812fd4 137 char recv_key[] = "host_port";
JMF 0:24d3eb812fd4 138 char ipbuf[60] = {0};
JMF 0:24d3eb812fd4 139 char portbuf[16] = {0};
JMF 0:24d3eb812fd4 140 unsigned int port = 0;
JMF 0:24d3eb812fd4 141
JMF 0:24d3eb812fd4 142 greentea_send_kv("host_ip", " ");
JMF 0:24d3eb812fd4 143 greentea_parse_kv(recv_key, ipbuf, sizeof(recv_key), sizeof(ipbuf));
JMF 0:24d3eb812fd4 144
JMF 0:24d3eb812fd4 145 greentea_send_kv("host_port", " ");
JMF 0:24d3eb812fd4 146 greentea_parse_kv(recv_key, portbuf, sizeof(recv_key), sizeof(ipbuf));
JMF 0:24d3eb812fd4 147 sscanf(portbuf, "%u", &port);
JMF 0:24d3eb812fd4 148
JMF 0:24d3eb812fd4 149 printf("MBED: Server IP address received: %s:%d \n", ipbuf, port);
JMF 0:24d3eb812fd4 150
JMF 0:24d3eb812fd4 151 TCPSocket sock;
JMF 0:24d3eb812fd4 152 SocketAddress tcp_addr(ipbuf, port);
JMF 0:24d3eb812fd4 153
JMF 0:24d3eb812fd4 154 Timer timer;
JMF 0:24d3eb812fd4 155 timer.start();
JMF 0:24d3eb812fd4 156
JMF 0:24d3eb812fd4 157 // Tests exponentially growing sequences
JMF 0:24d3eb812fd4 158 for (size_t size = MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MIN;
JMF 0:24d3eb812fd4 159 size < MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MAX;
JMF 0:24d3eb812fd4 160 size *= 2) {
JMF 0:24d3eb812fd4 161 err = sock.open(&net);
JMF 0:24d3eb812fd4 162 TEST_ASSERT_EQUAL(0, err);
JMF 0:24d3eb812fd4 163 err = sock.connect(tcp_addr);
JMF 0:24d3eb812fd4 164 TEST_ASSERT_EQUAL(0, err);
JMF 0:24d3eb812fd4 165 printf("TCP: %s:%d streaming %d bytes\r\n", ipbuf, port, size);
JMF 0:24d3eb812fd4 166
JMF 0:24d3eb812fd4 167 sock.set_blocking(false);
JMF 0:24d3eb812fd4 168
JMF 0:24d3eb812fd4 169 // Loop to send/recv all data
JMF 0:24d3eb812fd4 170 RandSeq tx_seq;
JMF 0:24d3eb812fd4 171 RandSeq rx_seq;
JMF 0:24d3eb812fd4 172 size_t rx_count = 0;
JMF 0:24d3eb812fd4 173 size_t tx_count = 0;
JMF 0:24d3eb812fd4 174 size_t window = buffer_size;
JMF 0:24d3eb812fd4 175
JMF 0:24d3eb812fd4 176 while (tx_count < size || rx_count < size) {
JMF 0:24d3eb812fd4 177 // Send out data
JMF 0:24d3eb812fd4 178 if (tx_count < size) {
JMF 0:24d3eb812fd4 179 size_t chunk_size = size - tx_count;
JMF 0:24d3eb812fd4 180 if (chunk_size > window) {
JMF 0:24d3eb812fd4 181 chunk_size = window;
JMF 0:24d3eb812fd4 182 }
JMF 0:24d3eb812fd4 183
JMF 0:24d3eb812fd4 184 tx_seq.buffer(buffer, chunk_size);
JMF 0:24d3eb812fd4 185 int td = sock.send(buffer, chunk_size);
JMF 0:24d3eb812fd4 186
JMF 0:24d3eb812fd4 187 if (td > 0) {
JMF 0:24d3eb812fd4 188 if (MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_DEBUG) {
JMF 0:24d3eb812fd4 189 printf("TCP: tx -> %d\r\n", td);
JMF 0:24d3eb812fd4 190 }
JMF 0:24d3eb812fd4 191 tx_seq.skip(td);
JMF 0:24d3eb812fd4 192 tx_count += td;
JMF 0:24d3eb812fd4 193 } else if (td != NSAPI_ERROR_WOULD_BLOCK) {
JMF 0:24d3eb812fd4 194 // We may fail to send because of buffering issues,
JMF 0:24d3eb812fd4 195 // cut buffer in half
JMF 0:24d3eb812fd4 196 if (window > MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MIN) {
JMF 0:24d3eb812fd4 197 window /= 2;
JMF 0:24d3eb812fd4 198 }
JMF 0:24d3eb812fd4 199
JMF 0:24d3eb812fd4 200 if (MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_DEBUG) {
JMF 0:24d3eb812fd4 201 printf("TCP: Not sent (%d), window = %d\r\n", td, window);
JMF 0:24d3eb812fd4 202 }
JMF 0:24d3eb812fd4 203 }
JMF 0:24d3eb812fd4 204 }
JMF 0:24d3eb812fd4 205
JMF 0:24d3eb812fd4 206 // Verify recieved data
JMF 0:24d3eb812fd4 207 while (rx_count < size) {
JMF 0:24d3eb812fd4 208 int rd = sock.recv(buffer, buffer_size);
JMF 0:24d3eb812fd4 209 TEST_ASSERT(rd > 0 || rd == NSAPI_ERROR_WOULD_BLOCK);
JMF 0:24d3eb812fd4 210 if (rd > 0) {
JMF 0:24d3eb812fd4 211 if (MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_DEBUG) {
JMF 0:24d3eb812fd4 212 printf("TCP: rx <- %d\r\n", rd);
JMF 0:24d3eb812fd4 213 }
JMF 0:24d3eb812fd4 214 int diff = rx_seq.cmp(buffer, rd);
JMF 0:24d3eb812fd4 215 TEST_ASSERT_EQUAL(0, diff);
JMF 0:24d3eb812fd4 216 rx_seq.skip(rd);
JMF 0:24d3eb812fd4 217 rx_count += rd;
JMF 0:24d3eb812fd4 218 } else if (rd == NSAPI_ERROR_WOULD_BLOCK) {
JMF 0:24d3eb812fd4 219 break;
JMF 0:24d3eb812fd4 220 }
JMF 0:24d3eb812fd4 221 }
JMF 0:24d3eb812fd4 222 }
JMF 0:24d3eb812fd4 223
JMF 0:24d3eb812fd4 224 err = sock.close();
JMF 0:24d3eb812fd4 225 TEST_ASSERT_EQUAL(0, err);
JMF 0:24d3eb812fd4 226 }
JMF 0:24d3eb812fd4 227
JMF 0:24d3eb812fd4 228 timer.stop();
JMF 0:24d3eb812fd4 229 printf("MBED: Time taken: %fs\r\n", timer.read());
JMF 0:24d3eb812fd4 230 printf("MBED: Speed: %.3fkb/s\r\n",
JMF 0:24d3eb812fd4 231 8*(2*MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MAX -
JMF 0:24d3eb812fd4 232 MBED_CFG_TCP_CLIENT_PACKET_PRESSURE_MIN) / (1000*timer.read()));
JMF 0:24d3eb812fd4 233
JMF 0:24d3eb812fd4 234 net.disconnect();
JMF 0:24d3eb812fd4 235 }
JMF 0:24d3eb812fd4 236
JMF 0:24d3eb812fd4 237
JMF 0:24d3eb812fd4 238 // Test setup
JMF 0:24d3eb812fd4 239 utest::v1::status_t test_setup(const size_t number_of_cases) {
JMF 0:24d3eb812fd4 240 GREENTEA_SETUP(120, "tcp_echo");
JMF 0:24d3eb812fd4 241 return verbose_test_setup_handler(number_of_cases);
JMF 0:24d3eb812fd4 242 }
JMF 0:24d3eb812fd4 243
JMF 0:24d3eb812fd4 244 Case cases[] = {
JMF 0:24d3eb812fd4 245 Case("TCP packet pressure", test_tcp_packet_pressure),
JMF 0:24d3eb812fd4 246 };
JMF 0:24d3eb812fd4 247
JMF 0:24d3eb812fd4 248 Specification specification(test_setup, cases);
JMF 0:24d3eb812fd4 249
JMF 0:24d3eb812fd4 250 int main() {
JMF 0:24d3eb812fd4 251 return !Harness::run(specification);
JMF 0:24d3eb812fd4 252 }
JMF 0:24d3eb812fd4 253