-# Wifi Performance Examples\r
-\r
-Some simple codes help to test the wifi performance.\r
-\r
-Including TCP/UDP TX/RX throughput.\r
-\r
-# tcp_perf\r
-\r
-This example is used to test tcp throughput and delay time. First you should set options in menuconfig.\r
-\r
-You can set esp32 as AP/STA, client/sever, sender/receiver. Make sure that STAcan connect to AP with your configuration in menuconfig.\r
-\r
-So the tcp_perf can be used in following scenes:\r
-\r
-* esp32 to Router (using esp32 as STA)\r
-* esp32 to Wifi adaptor (using esp32 as AP)\r
-* esp32 to esp32 (using one of them as AP, the other STA)\r
-\r
-After connection established, TCP sever and TCP client can send data to each other. The result of throughput will show by COM.\r
-\r
-Explaining more in [main.c](./tcp_perf/main/main.c).\r
-\r
-# udp_perf\r
-\r
-Similar with tcp_perf.\r
-\r
-There are some points need to notice.\r
-\r
-* A packet will be send from client to sever.So the sever can konw the ip&port of client.\r
-\r
-* To easy use this example, it's better to use udp sever as recviver.\r
-\r
-\r
-# More\r
-\r
-See the [README.md](../README.md) file in the upper level [examples](../) directory for more information about examples.\r
+# Wifi Performance Examples
+
+Some simple codes help to test the wifi performance.
+
+Including TCP/UDP TX/RX throughput.
+
+# tcp_perf
+
+This example is used to test tcp throughput and delay time. First you should set options in menuconfig.
+
+Steps:
+
+* Step1: Set a AP and a STA with same SSID & PASSWORD. You can set one esp32 as AP and another esp32 as STA, also you can use Router or wifi adaptor instead one of the them.
+
+* Step2: Set a tcp client and a sever. Make sure the client has correct sever ip & port so they can get connected. It's okay if you creat a tcp sever & client using PC since one of the wifi device is't esp32.
+
+* Step3: Set a sender and a receiver. Set one of them sending data and the other receiving.
+
+* Step4: Save your settings and make bin file downloading to flash.
+
+* Step5: Start test.
+
+Here are some things that might help you do the test easily.
+
+* You'd better turn on the AP before the STA.
+* The tcp sever should be built before the tcp client.
+* If you use a esp32 as AP, you'd better use it as tcp sever also.
+* Once the tcp connection crashed, esp32 should be restarted to rebuild tcp connection.
+
+After connection established, TCP sever and TCP client can send data to each other. The result of throughput will show by COM.
+
+Explaining more in [main.c](./tcp_perf/main/main.c).
+
+# udp_perf
+
+This example is similar to tcp_perf. Also the steps is similar to tcp_perf.
+
+There's a obvious difference between udp_perf and tcp perf:
+
+Before formal sending & receiving, a packet will be send from client to sever. So the sever can konw the ip&port of client. Maybe it's easily to use if you set the udp sever as receiver.
+
+Explaining more in [main.c](./udp_perf/main/main.c).
+
+# More
+
+See the [README.md](../README.md) file in the upper level [examples](../) directory for more information about examples.
/* FreeRTOS event group to signal when we are connected & ready to make a request */\r
static EventGroupHandle_t wifi_event_group;\r
/*socket*/\r
-static int sever_socket;\r
+static int sever_socket = 0;\r
static struct sockaddr_in sever_addr;\r
static struct sockaddr_in client_addr;\r
static unsigned int socklen = sizeof(client_addr);\r
-static int connect_soc;\r
+static int connect_soc = 0;\r
\r
static esp_err_t event_handler(void *ctx, system_event_t *event)\r
{\r
ESP_LOGI(TAG, "event_handler:SYSTEM_EVENT_STA_GOT_IP!");\r
ESP_LOGI(TAG, "got ip:%s\n",\r
ip4addr_ntoa(&event->event_info.got_ip.ip_info.ip));\r
- connectedflag=1;\r
+ connectedflag = 1;\r
break;\r
case SYSTEM_EVENT_AP_STACONNECTED:\r
ESP_LOGI(TAG, "station:"MACSTR" join,AID=%d\n",\r
MAC2STR(event->event_info.sta_connected.mac),\r
event->event_info.sta_connected.aid);\r
- connectedflag=1;\r
+ connectedflag = 1;\r
break;\r
case SYSTEM_EVENT_AP_STADISCONNECTED:\r
ESP_LOGI(TAG, "station:"MACSTR"leave,AID=%d\n",\r
MAC2STR(event->event_info.sta_disconnected.mac),\r
event->event_info.sta_disconnected.aid);\r
+ connectedflag = 0;\r
break;\r
default:\r
break;\r
totle_data += len;\r
}\r
else {\r
- perror("recv_data error");\r
+ show_socket_error_code(connect_soc);\r
vTaskDelay(500 / portTICK_RATE_MS);\r
}\r
}\r
ESP_LOGI(TAG, "sever socket....port=%d\n", DEFAULT_PORT);\r
sever_socket = socket(AF_INET, SOCK_STREAM, 0);\r
if (sever_socket < 0) {\r
- perror("socket() error:");\r
+ show_socket_error_code(sever_socket);\r
+ //perror("socket() error:");\r
return -1;\r
}\r
sever_addr.sin_family = AF_INET;\r
sever_addr.sin_port = htons(DEFAULT_PORT);\r
sever_addr.sin_addr.s_addr = htonl(INADDR_ANY);\r
if (bind(sever_socket, (struct sockaddr*)&sever_addr, sizeof(sever_addr)) < 0) {\r
- perror("bind() error");\r
+ show_socket_error_code(sever_socket);\r
+ //perror("bind() error");\r
close(sever_socket);\r
return -1;\r
}\r
if (listen(sever_socket, 5) < 0) {\r
- perror("listen() error");\r
+ show_socket_error_code(sever_socket);\r
+ //perror("listen() error");\r
close(sever_socket);\r
return -1;\r
}\r
connect_soc = accept(sever_socket, (struct sockaddr*)&client_addr, &socklen);\r
if (connect_soc<0) {\r
- perror("accept() error");\r
+ show_socket_error_code(connect_soc);\r
+ //perror("accept() error");\r
close(sever_socket);\r
return -1;\r
}\r
DEFAULT_SEVER_IP, DEFAULT_PORT);\r
connect_soc = socket(AF_INET, SOCK_STREAM, 0);\r
if (connect_soc < 0) {\r
- perror("socket failed!");\r
+ show_socket_error_code(connect_soc);\r
+ //perror("socket failed!");\r
return -1;\r
}\r
sever_addr.sin_family = AF_INET;\r
sever_addr.sin_addr.s_addr = inet_addr(DEFAULT_SEVER_IP);\r
ESP_LOGI(TAG, "connecting to sever...");\r
if (connect(connect_soc, (struct sockaddr *)&sever_addr, sizeof(sever_addr)) < 0) {\r
- perror("connect to sever error!");\r
+ show_socket_error_code(connect_soc);\r
+ //perror("connect to sever error!");\r
return -1;\r
}\r
ESP_LOGI(TAG, "connect to sever success!");\r
wifi_config_t wifi_config = {\r
.ap = {\r
.ssid = DEFAULT_SSID,\r
- .ssid_len=0,\r
+ .ssid_len = 0,\r
.max_connection=MAX_STA_CONN,\r
.password = DEFAULT_PWD,\r
- .authmode=WIFI_AUTH_WPA_WPA2_PSK\r
+ .authmode = WIFI_AUTH_WPA_WPA2_PSK\r
},\r
};\r
+ if (strlen(DEFAULT_PWD) ==0) {\r
+ wifi_config.ap.authmode = WIFI_AUTH_OPEN;\r
+ }\r
\r
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_AP));\r
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_AP, &wifi_config));\r
DEFAULT_SSID, DEFAULT_PWD);\r
}\r
\r
+\r
+\r
+\r
+char* tcpip_get_reason(int err)\r
+{\r
+ switch (err) {\r
+ case 0:\r
+ return "reason: other reason";\r
+ case ENOMEM:\r
+ return "reason: out of memory";\r
+ case ENOBUFS:\r
+ return "reason: buffer error";\r
+ case EWOULDBLOCK:\r
+ return "reason: timeout, try again";\r
+ case EHOSTUNREACH:\r
+ return "reason: routing problem";\r
+ case EINPROGRESS:\r
+ return "reason: operation in progress";\r
+ case EINVAL:\r
+ return "reason: invalid value";\r
+ case EADDRINUSE:\r
+ return "reason: address in use";\r
+ case EALREADY:\r
+ return "reason: conn already connected";\r
+ case EISCONN:\r
+ return "reason: conn already established";\r
+ case ECONNABORTED:\r
+ return "reason: connection aborted";\r
+ case ECONNRESET:\r
+ return "reason: connection is reset";\r
+ case ENOTCONN:\r
+ return "reason: connection closed";\r
+ case EIO:\r
+ return "reason: invalid argument";\r
+ case -1:\r
+ return "reason: low level netif error";\r
+ default:\r
+ return "reason not found";\r
+ }\r
+}\r
+\r
+int show_socket_error_code(int soc)\r
+{\r
+ int result;\r
+ u32_t optlen = sizeof(int);\r
+ getsockopt(soc, SOL_SOCKET, SO_ERROR, &result, &optlen);\r
+ ESP_LOGI(TAG, "soc error %d reason: %s", result, tcpip_get_reason(result));\r
+ return result;\r
+}\r
+\r
+int check_socket_error_code()\r
+{\r
+ int ret;\r
+#if ESP_TCP_MODE_SEVER\r
+ ESP_LOGI(TAG, "check sever_socket sever_socket");\r
+ ret = show_socket_error_code(sever_socket);\r
+ if(ret == ECONNRESET)\r
+ return ret;\r
+#endif\r
+ ESP_LOGI(TAG, "check sever_socket connect_soc");\r
+ ret = show_socket_error_code(connect_soc);\r
+ if(ret == ECONNRESET)\r
+ return ret;\r
+ return 0;\r
+}\r
+\r
void close_socket()\r
{\r
close(connect_soc);\r
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