/* WaitForDCF77                                                     ***RGR***
                                                                    12-sep-94
   Author:   Ralf Gruner, An der Sense 5a, D-02779 Großschönau, Germany.
*/

#include <exec/types.h>
#include <exec/semaphores.h>
#include <clib/exec_protos.h>
#include <clib/dos_protos.h>
#include <stdio.h>

struct StatusList
{
	struct SignalSemaphore sl_Semaphore;
	STRPTR version;
	BOOL Received;
};

struct StatusList *DCF77PublicStatus=NULL;

UBYTE	* DCF77SemaphoreName = "DCF77 State";
BOOL	DCF77received=FALSE;

main(int argc, char *argv[])
{
	char *msg1="\n WaitForDCF77 Version 1.01 - © 1994 Ralf Gruner, Großschönau, Germany.\n";
	char *msg2=" WaitForDCF77 waits for received time from the\n european radio clock signal DCF77.";
	char *msg3=" Usage: Simply run it while the receiver software DCF77 is running.\n";

	if(argc != 1)
	{
		puts(msg1);
		puts(msg2);
		puts(msg3);
	}
	else
		while(!DCF77received)
		{
			Forbid();
			if(DCF77PublicStatus=(struct StatusList *) FindSemaphore(DCF77SemaphoreName))
			{
				ObtainSemaphoreShared((struct SignalSemaphore *) DCF77PublicStatus);
				DCF77received=DCF77PublicStatus->Received;
				ReleaseSemaphore((struct SignalSemaphore *) DCF77PublicStatus);
			}
			else
				DCF77received=FALSE;	// DCF77 is not running
			Permit();

			if(!DCF77received)
				Delay(150L);	// wait three seconds and try again...
		}
}