Add iterations to the http mutual auth demo

Author: kar-rahul-aws

demos/http/http_demo_mutual_auth/http_demo_mutual_auth.c

@@ -58,6 +58,11 @@
     #error "Please define a POST_PATH."
 #endif
 
+/**
+ * @brief Delay in seconds between each iteration of the demo.
+ */
+#define DEMO_LOOP_DELAY_SECONDS    ( 5U )
+
 /* Check that a path for Root CA certificate is defined. */
 #ifndef ROOT_CA_CERT_PATH
     #error "Please define a ROOT_CA_CERT_PATH."
@@ -108,6 +113,11 @@
  */
 #define REQUEST_BODY_LENGTH        ( sizeof( REQUEST_BODY ) - 1 )
 
+/**
+ * @brief Number of HTTP paths to request.
+ */
+#define NUMBER_HTTP_PATHS          ( 4 )
+
 /**
  * @brief A buffer used in the demo for storing HTTP request headers and
  * HTTP response headers and body.
@@ -312,10 +322,6 @@ static int32_t sendHttpRequest( const TransportInterface_t * pTransportInterface
                     HTTPClient_strerror( httpStatus ) ) );
     }
 
-    LogInfo( ( "ABC" ) );
-    fflush( stdout );
-    fflush( stderr );
-
     if( httpStatus != HTTPSuccess )
     {
         returnStatus = EXIT_FAILURE;
@@ -356,61 +362,75 @@ int main( int argc,
     /* Set the pParams member of the network context with desired transport. */
     networkContext.pParams = &opensslParams;
 
-    /**************************** Connect. ******************************/
-
-    /* Establish TLS connection on top of TCP connection using OpenSSL. */
-    if( returnStatus == EXIT_SUCCESS )
+    for( ; ; )
     {
-        LogInfo( ( "Performing TLS handshake on top of the TCP connection." ) );
+        int i = 0;
 
-        /* Attempt to connect to the HTTP server. If connection fails, retry after
-         * a timeout. Timeout value will be exponentially increased till the maximum
-         * attempts are reached or maximum timeout value is reached. The function
-         * returns EXIT_FAILURE if the TCP connection cannot be established to
-         * broker after configured number of attempts. */
-        returnStatus = connectToServerWithBackoffRetries( connectToServer,
-                                                          &networkContext );
+        /**************************** Connect. ******************************/
 
-        if( returnStatus == EXIT_FAILURE )
+        /* Establish TLS connection on top of TCP connection using OpenSSL. */
+        if( returnStatus == EXIT_SUCCESS )
         {
-            /* Log error to indicate connection failure after all
-             * reconnect attempts are over. */
-            LogError( ( "Failed to connect to HTTP server %.*s.",
-                        ( int32_t ) AWS_IOT_ENDPOINT_LENGTH,
-                        AWS_IOT_ENDPOINT ) );
+            LogInfo( ( "Performing TLS handshake on top of the TCP connection." ) );
+
+            /* Attempt to connect to the HTTP server. If connection fails, retry after
+             * a timeout. Timeout value will be exponentially increased till the maximum
+             * attempts are reached or maximum timeout value is reached. The function
+             * returns EXIT_FAILURE if the TCP connection cannot be established to
+             * broker after configured number of attempts. */
+            returnStatus = connectToServerWithBackoffRetries( connectToServer,
+                                                              &networkContext );
+
+            if( returnStatus == EXIT_FAILURE )
+            {
+                /* Log error to indicate connection failure after all
+                 * reconnect attempts are over. */
+                LogError( ( "Failed to connect to HTTP server %.*s.",
+                            ( int32_t ) AWS_IOT_ENDPOINT_LENGTH,
+                            AWS_IOT_ENDPOINT ) );
+            }
         }
-    }
 
-    /* Define the transport interface. */
-    if( returnStatus == EXIT_SUCCESS )
-    {
-        ( void ) memset( &transportInterface, 0, sizeof( transportInterface ) );
-        transportInterface.recv = Openssl_Recv;
-        transportInterface.send = Openssl_Send;
-        transportInterface.pNetworkContext = &networkContext;
-    }
+        /* Define the transport interface. */
+        if( returnStatus == EXIT_SUCCESS )
+        {
+            ( void ) memset( &transportInterface, 0, sizeof( transportInterface ) );
+            transportInterface.recv = Openssl_Recv;
+            transportInterface.send = Openssl_Send;
+            transportInterface.pNetworkContext = &networkContext;
+        }
 
-    /*********************** Send HTTPS request. ************************/
+        /*********************** Send HTTPS requests. ************************/
 
-    if( returnStatus == EXIT_SUCCESS )
-    {
-        returnStatus = sendHttpRequest( &transportInterface,
-                                        HTTP_METHOD_POST,
-                                        HTTP_METHOD_POST_LENGTH,
-                                        POST_PATH,
-                                        POST_PATH_LENGTH );
-    }
+        for( i = 0; i < NUMBER_HTTP_PATHS; i++ )
+        {
+            if( returnStatus == EXIT_SUCCESS )
+            {
+                returnStatus = sendHttpRequest( &transportInterface,
+                                                HTTP_METHOD_POST,
+                                                HTTP_METHOD_POST_LENGTH,
+                                                POST_PATH,
+                                                POST_PATH_LENGTH );
+            }
+            else
+            {
+                break;
+            }
+        }
 
-    if( returnStatus == EXIT_SUCCESS )
-    {
-        /* Log message indicating an iteration completed successfully. */
-        LogInfo( ( "Demo completed successfully." ) );
-    }
+        if( returnStatus == EXIT_SUCCESS )
+        {
+            /* Log message indicating an iteration completed successfully. */
+            LogInfo( ( "Demo completed successfully." ) );
+        }
 
-    /************************** Disconnect. *****************************/
+        /************************** Disconnect. *****************************/
 
-    /* End TLS session, then close TCP connection. */
-    ( void ) Openssl_Disconnect( &networkContext );
+        /* End TLS session, then close TCP connection. */
+        ( void ) Openssl_Disconnect( &networkContext );
 
-    return returnStatus;
-}
+        LogInfo( ( "Short delay before starting the next iteration....\n" ) );
+        sleep( DEMO_LOOP_DELAY_SECONDS );
+
+        return returnStatus;
+    }