2018-06-27 Add TCP Client or Server Sample Code

2018-06-27 Add TCP Client or Server Sample Code

9_tcp_server_client/Makefile

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+#
+# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+# project subdirectory.
+#
+
+PROJECT_NAME := tcp_perf
+
+include $(IDF_PATH)/make/project.mk
+

9_tcp_server_client/README.md

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+ - esp as a tcp server or client 

9_tcp_server_client/main/Kconfig.projbuild

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+menu "Example Configuration"
+
+#choice 
+#   prompt "TCP_PERF_MODE "
+#	default MODE_TCP_SHIELDBOX
+#	help
+#	    This option set performance mode.
+#	    
+#	    - Testing in shieldbox for "Performance in shieldbox" setting.
+#		
+#	    - Testing in air for "Performance in air" setting.
+#	    		
+#	    - Testing in long distance for "Performance in long distance" setting.
+#		
+#					
+#config MODE_TCP_SHIELDBOX
+#    bool "Performance in shieldbox"
+#config MODE_TCP_AIR
+#    bool "Performance in air"
+#config MODE_TCP_LONG_DISTANCE
+#    bool "Performance in long distance"
+#endchoice
+
+choice TCP_PERF_WIFI_MODE
+    prompt "AP or STA"
+    default TCP_PERF_ESP_IS_STATION
+    help
+        Whether the esp32 is softAP or station.
+
+config TCP_PERF_ESP_IS_SOFTAP
+    bool "SoftAP"
+config TCP_PERF_ESP_IS_STATION
+    bool "Station"
+endchoice
+
+config TCP_PERF_WIFI_MODE_AP
+    bool
+    default y if TCP_PERF_ESP_IS_SOFTAP
+    default n if TCP_PERF_ESP_IS_STATION
+
+choice TCP_PERF_SERVER_CLIENT
+    prompt "server or client"
+    default TCP_PERF_ESP_IS_CLIENT
+    help
+	Whether the esp32 is tcp server or client.
+
+	We suggest to choose "client" if you choose "station" in "wifi mode".
+
+config TCP_PERF_ESP_IS_SERVER
+    bool "server"
+config TCP_PERF_ESP_IS_CLIENT
+    bool "client"
+endchoice
+
+config TCP_PERF_SERVER
+    bool
+    default y if TCP_PERF_ESP_IS_SERVER
+    default n if TCP_PERF_ESP_IS_CLIENT
+
+choice TCP_PERF_TX_RX
+    prompt "send or receive"
+    default TCP_PERF_ESP_RECV
+    help
+	Whether the esp32 will send or receive.
+
+config TCP_PERF_ESP_SEND
+    bool "send"
+config TCP_PERF_ESP_RECV
+    bool "receive"
+endchoice
+
+config TCP_PERF_TX
+    bool
+    default y if TCP_PERF_ESP_SEND
+    default n if TCP_PERF_ESP_RECV
+
+config TCP_PERF_DELAY_DEBUG
+    bool "TCP performance delay info enable"
+    depends on TCP_PERF_TX
+    default n
+    help
+	Show TCP performance delay info.
+
+	Ignore in TCP RX.
+
+config TCP_PERF_WIFI_SSID
+    string "WiFi SSID"
+    default "esp_wifi_test1"
+    help
+	SSID (network name) for the example to connect to.
+
+config TCP_PERF_WIFI_PASSWORD
+    string "WiFi Password"
+    default "1234567890"
+    help
+	WiFi password (WPA or WPA2) for the example to use.
+
+config TCP_PERF_SERVER_PORT
+    int "TCP server port"
+    default 4567
+    help 
+	Which will the tcp server use.
+
+config TCP_PERF_SERVER_IP
+    string "TCP server ip"
+    depends on TCP_PERF_ESP_IS_CLIENT
+    default "192.168.4.1" 
+    help
+	IP of TCP server.
+
+	Ignore in TCP server.
+
+config TCP_PERF_PKT_SIZE
+    int "Size of TCP packet"
+    default 1460
+    help
+	the data send&recv packet size. 
+
+endmenu

9_tcp_server_client/main/component.mk

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+#
+# Main component makefile.
+#
+# This Makefile can be left empty. By default, it will take the sources in the 
+# src/ directory, compile them and link them into lib(subdirectory_name).a 
+# in the build directory. This behaviour is entirely configurable,
+# please read the ESP-IDF documents if you need to do this.
+#

9_tcp_server_client/main/tcp_main.c

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+
+#include <errno.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/event_groups.h"
+#include "esp_log.h"
+#include "esp_err.h"
+#include "nvs_flash.h"
+#include "xuhong_Tcp.h"
+
+//this task establish a TCP connection and receive data from TCP
+static void tcp_conn(void *pvParameters)
+{
+    while (1)
+    {
+
+        g_rxtx_need_restart = false;
+
+        ESP_LOGI(TAG, "task tcp_conn...");
+
+        /*wating for connecting to AP*/
+        xEventGroupWaitBits(tcp_event_group, WIFI_CONNECTED_BIT, false, true, portMAX_DELAY);
+        TaskHandle_t tx_rx_task = NULL;
+
+#if TCP_SERVER_CLIENT_OPTION
+
+        ESP_LOGI(TAG, "tcp_server will start after 3s...");
+        vTaskDelay(3000 / portTICK_RATE_MS);
+        ESP_LOGI(TAG, "create_tcp_server.");
+        int socket_ret = create_tcp_server(true);
+#else
+        ESP_LOGI(TAG, "tcp_client will start after 3s...");
+        vTaskDelay(3000 / portTICK_RATE_MS);
+        ESP_LOGI(TAG, "create_tcp_Client.");
+        int socket_ret = create_tcp_client();
+#endif
+        if (socket_ret == ESP_FAIL)
+        {
+            ESP_LOGI(TAG, "create tcp socket error,stop...");
+            continue;
+        }
+        else
+        {
+            ESP_LOGI(TAG, "create tcp socket succeed...");
+        }
+
+        if (pdPASS != xTaskCreate(&recv_data, "recv_data", 4096, NULL, 4, &tx_rx_task))
+        {
+            ESP_LOGI(TAG, "Recv task create fail!");
+        }
+        else
+        {
+            ESP_LOGI(TAG, "Recv task create succeed!");
+        }
+
+        double bps;
+
+        while (1)
+        {
+
+            vTaskDelay(3000 / portTICK_RATE_MS);
+
+#if TCP_SERVER_CLIENT_OPTION
+
+            if (g_rxtx_need_restart)
+            {
+                ESP_LOGE(TAG, "tcp server send or receive task encoutner error, need to restart...");
+
+                if (ESP_FAIL != create_tcp_server(false))
+                {
+                    if (pdPASS != xTaskCreate(&recv_data, "recv_data", 4096, NULL, 4, &tx_rx_task))
+                    {
+                        ESP_LOGE(TAG, "tcp server Recv task create fail!");
+                    }
+                    else
+                    {
+                        ESP_LOGE(TAG, "tcp server Recv task create succeed!");
+                    }
+                }
+            }
+#else
+            if (g_rxtx_need_restart)
+            {
+                ESP_LOGI(TAG, "tcp_client will reStart after 3s...");
+                vTaskDelay(3000 / portTICK_RATE_MS);
+                ESP_LOGI(TAG, "create_tcp_Client...");
+                int socket_ret = create_tcp_client();
+
+                if (socket_ret == ESP_FAIL)
+                {
+                    ESP_LOGE(TAG, "create tcp socket error,stop...");
+                    continue;
+                }
+                else
+                {
+                    ESP_LOGI(TAG, "create tcp socket succeed...");
+                    g_rxtx_need_restart = false;
+                }
+
+                if (pdPASS != xTaskCreate(&recv_data, "recv_data", 4096, NULL, 4, &tx_rx_task))
+                {
+                    ESP_LOGE(TAG, "Recv task create fail!");
+                }
+                else
+                {
+                    ESP_LOGI(TAG, "Recv task create succeed!");
+                }
+            }
+#endif
+        }
+    }
+
+    vTaskDelete(NULL);
+}
+
+void app_main(void)
+{
+    esp_err_t ret = nvs_flash_init();
+    if (ret == ESP_ERR_NVS_NO_FREE_PAGES)
+    {
+        ESP_ERROR_CHECK(nvs_flash_erase());
+        ret = nvs_flash_init();
+    }
+    ESP_ERROR_CHECK(ret);
+
+#if TCP_SERVER_CLIENT_OPTION
+    ESP_LOGI(TAG, "As a Tcp Server , will start wifi_init_softap...");
+    wifi_init_softap();
+#else
+
+    ESP_LOGI(TAG, "As a Tcp Client , will start wifi_init_sta...");
+    wifi_init_sta();
+#endif
+    xTaskCreate(&tcp_conn, "tcp_conn", 4096, NULL, 5, NULL);
+}