FreeRTOS-Plus/Demo_Projects_Using_FreeRTOS_Simulator/FreeRTOS_Plus_CyaSSL/main.c

/*
    FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.


    ***************************************************************************
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    This file is part of the FreeRTOS distribution.

    FreeRTOS is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License (version 2) as published by the
    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
    >>>NOTE<<< The modification to the GPL is included to allow you to
    distribute a combined work that includes FreeRTOS without being obliged to
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    by writing to Richard Barry, contact details for whom are available on the
    FreeRTOS WEB site.

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*/

/*
 ******************************************************************************
 * -NOTE- The Win32 port is a simulation (or is that emulation?) only!  Do not
 * expect to get real time behaviour from the Win32 port or this demo
 * application.  It is provided as a convenient development and demonstration
 * test bed only.  This was tested using Windows XP on a dual core laptop.
 *
 * In this example, one simulated millisecond will take approximately 40ms to
 * execute.  See the documentation page for the Windows simulator for an 
 * explanation of the slow timing:
 * http://www.freertos.org/FreeRTOS-Windows-Simulator-Emulator-for-Visual-Studio-and-Eclipse-MingW.html
 ******************************************************************************
 *
 * This is a simple FreeRTOS Windows simulator project that makes it easy to 
 * evaluate CyaSSL in a FreeRTOS environment on a standard desktop PC, and 
 * without any external hardware or interfaces being required.
 *
 * main() creates a TCP server task, which initialises CyaSSL, before creating a
 * TCP client task.  Both the server and client use TLS secured sockets.
 *
 * The client task repeatedly connects to the server, sends 10 messages, then 
 * disconnects.  The server task prints the contents of each message to the
 * console as they are received.
 *
 * CyaSSL objects are created and deleted as each socket connects and
 * disconnects respectively.
 *
 * The server task is implemented in SecureTCPServerTask.c, and the client task
 * in SecureTCPClientTask.c.
 *
 * Visit http://www.FreeRTOS.org/ssl for FreeRTOS + CyaSSL for demo 
 * documentation.
 *
 */

/* Standard includes. */
#include <stdio.h>
#include <stdint.h>

/* FreeRTOS includes. */
#include <FreeRTOS.h>
#include "task.h"

/* This application is using the FreeRTOS Windows simulator, which uses the
FreeRTOS scheduler to schedule FreeRTOS task within the Windows environment.
The Windows environment must not be allowed to block any Windows threads that
are running FreeRTOS tasks, unless the FreeRTOS task is running at the FreeRTOS
idle priority.  For simplicity, this demo uses the Windows TCP/IP stack, the
API for which can cause Windows threads to block.  Therefore, any FreeRTOS task
that makes calls to the Windows TCP/IP stack must be assigned the idle priority.
Note this is only a restriction of the simulated Windows environment - real
FreeRTOS ports do not have this restriction. */
#define mainSECURE_SERVER_TASK_PRIORITY		( tskIDLE_PRIORITY )


/*-----------------------------------------------------------*/

/*
 * The task that implements the server side.
 */
extern void vSecureTCPServerTask( void *pvParameters );

/*-----------------------------------------------------------*/

int main( void )
{
const uint32_t ulLongTime_ms = 250UL;

	/* Create the TCP server task.  This will itself create the client task
	once it has completed the CyaSSL initialisation. */
	xTaskCreate( vSecureTCPServerTask, ( signed char * ) "Server", configMINIMAL_STACK_SIZE, NULL, mainSECURE_SERVER_TASK_PRIORITY, NULL );

	/* Start the task running. */
	vTaskStartScheduler();

	/* If all is well, the scheduler will now be running, and the following
	line will never be reached.  If the following line does execute, then
	there was insufficient FreeRTOS heap memory available for the idle and/or
	timer tasks	to be created.  See the memory management section on the
	FreeRTOS web site for more details (this is standard text that is not not 
	really applicable to the Win32 simulator port). */
	for( ;; )
	{
		Sleep( ulLongTime_ms );
	}
}
/*-----------------------------------------------------------*/

void vApplicationIdleHook( void )
{
const unsigned long ulMSToSleep = 5;

	/* This function is called on each cycle of the idle task if
	configUSE_IDLE_HOOK is set to 1 in FreeRTOSConfig.h.  Sleep to reduce CPU 
	load. */
	Sleep( ulMSToSleep );
}
/*-----------------------------------------------------------*/

void vAssertCalled( void )
{
const unsigned long ulLongSleep = 1000UL;

	taskDISABLE_INTERRUPTS();
	for( ;; )
	{
		Sleep( ulLongSleep );
	}
}
/*-----------------------------------------------------------*/