add lobaroCoAP Demo and CONFIG_COAP_DEMO_ENABLED definition (aws#2390)

Author: Mtalat

demos/coap/CMakeLists.txt

@@ -0,0 +1,20 @@
+# C SDK COAP demo
+afr_demo_module(coap)
+
+afr_set_demo_metadata(ID "COAP_DEMO")
+afr_set_demo_metadata(DESCRIPTION "An example that demonstrates COAP")
+afr_set_demo_metadata(DISPLAY_NAME "COAP Hello World")
+
+afr_module_sources(
+    ${AFR_CURRENT_MODULE}
+    INTERFACE
+        "${CMAKE_CURRENT_LIST_DIR}/iot_demo_coap.c"
+)
+afr_module_dependencies(
+    ${AFR_CURRENT_MODULE}
+    INTERFACE
+        AFR::coap
+)
+
+
+

demos/coap/iot_demo_coap.c

@@ -0,0 +1,135 @@
+/*
+/*
+ *  Created on: Nov 10, 2020
+ *  Authors: Mohammed Abdelmaksoud & Hatim Jamali
+ *  1NCE GmbH
+ *
+ */
+
+/**
+ * @file iot_demo_coap.c
+ * @brief Demonstrates usage of lobaro COAP library.
+ */
+
+/* The config header is always included first. */
+#include "iot_config.h"
+
+/* Standard includes. */
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Set up logging for this demo. */
+#include "iot_demo_logging.h"
+
+/* Platform layer includes. */
+#include "platform/iot_clock.h"
+#include "platform/iot_threads.h"
+#include "platform/iot_network.h"
+
+/* COAP include. */
+#include "coap_main.h"
+
+
+/*-----------------------------------------------------------*/
+
+
+
+CoAP_RespHandler_fn_t CoAP_Resp_handler(CoAP_Message_t* pRespMsg, NetEp_t* Sender) {
+	configPRINTF(
+			( "MESSAGE Payload : %s \r\n" , pRespMsg->Payload ));
+	PrintEndpoint(Sender);
+}
+
+/* Declaration of demo function. */
+int RuncoapDemo( bool awsIotMqttMode,
+        const char * pIdentifier,
+        void * pNetworkServerInfo,
+        void * pNetworkCredentialInfo,
+        const IotNetworkInterface_t * pNetworkInterface );
+
+/*-----------------------------------------------------------*/
+/**
+ * @brief The function that runs the COAP demo, called by the demo runner.
+ * @return `EXIT_SUCCESS` if the demo completes successfully; `EXIT_FAILURE` otherwise.
+ */
+int RuncoapDemo(bool awsIotMqttMode,
+        const char * pIdentifier,
+        void * pNetworkServerInfo,
+        void * pNetworkCredentialInfo,
+        const IotNetworkInterface_t * pNetworkInterface)
+{
+    /* Return value of this function and the exit status of this program. */
+    int status = EXIT_FAILURE;
+
+	SocketsSockaddr_t ServerAddress;
+	NetPacket_t pPacket;
+
+	configPRINTF(( "Connecting to CoAP server\r\n" ));
+	ServerAddress.usPort = SOCKETS_htons(configCOAP_PORT);
+	ServerAddress.ulAddress = SOCKETS_inet_addr_quick(configCOAP_SERVER_ADDR0,
+			configCOAP_SERVER_ADDR1, configCOAP_SERVER_ADDR2,
+			configCOAP_SERVER_ADDR3);
+	const NetEp_t ServerEp = { .NetType = IPV4, .NetPort =
+	configCOAP_PORT, .NetAddr = { .IPv4 = { .u8 = {
+	configCOAP_SERVER_ADDR0, configCOAP_SERVER_ADDR1,
+	configCOAP_SERVER_ADDR2, configCOAP_SERVER_ADDR3 } } } };
+
+
+  /* Create UDP Socket */
+		Socket_t udp = SOCKETS_Socket( SOCKETS_AF_INET, SOCKETS_SOCK_DGRAM,
+		SOCKETS_IPPROTO_UDP);
+		CoAP_Socket_t *socket = AllocSocket();
+
+		/* Connect to CoAP server */
+		if ( SOCKETS_Connect(udp, &ServerAddress, sizeof(ServerAddress)) == 0) {
+			configPRINTF(( "Connected to CoAP server \r\n" ));
+
+			/* Add payload */
+			char pcTransmittedString[] = "hello from CoAP";
+
+			/* Add socket and Network Interface configuration */
+			socket->Handle = udp;
+			socket->Tx = CoAP_Send_Wifi;
+
+			/* Create confirmable CoAP POST packet with URI Path option */
+			CoAP_Message_t *pReqMsg = CoAP_CreateMessage(CON, REQ_POST,
+					CoAP_GetNextMid(), CoAP_GenerateToken());
+
+			CoAP_addNewPayloadToMessage(pReqMsg, pcTransmittedString,
+					strlen(pcTransmittedString));
+			CoAP_AddOption(pReqMsg, OPT_NUM_URI_PATH, configCOAP_URI_PATH , strlen(configCOAP_URI_PATH));
+
+
+			/* Create CoAP Client Interaction to send a confirmable POST Request  */
+	        CoAP_StartNewClientInteraction( pReqMsg,socket->Handle,  &ServerEp,  CoAP_Resp_handler);
+	    	CoAP_Interaction_t* pIA = CoAP_GetLongestPendingInteraction();
+
+
+			/* Execute the Interaction list  */
+
+	        while (pIA != NULL) {
+
+		        CoAP_doWork();
+
+		        if (pIA->State == COAP_STATE_WAITING_RESPONSE){
+					CoAP_Recv_Wifi(socket->Handle, &pPacket,ServerEp);
+		        }
+		    	 pIA = CoAP_GetLongestPendingInteraction();
+                        
+                if (pIA->State == COAP_STATE_FINISHED)
+                {
+                status = EXIT_SUCCESS;
+                }
+	        }
+
+		}
+
+        
+
+
+    return status;
+}
+
+/*-----------------------------------------------------------*/

demos/include/iot_demo_runner.h

@@ -48,6 +48,8 @@
         #undef democonfigDEMO_PRIORITY
         #define democonfigDEMO_PRIORITY     democonfigMQTT_ECHO_TASK_PRIORITY
     #endif
+#elif defined( CONFIG_COAP_DEMO_ENABLED )
+    #define DEMO_entryFUNCTION              RuncoapDemo
 #elif defined( CONFIG_CORE_MQTT_BASIC_TLS_DEMO_ENABLED )
     #define DEMO_entryFUNCTION              RunCoreMqttBasicTLSDemo
     #if defined( democonfigMQTT_ECHO_TASK_STACK_SIZE )