#define _POSIX_SOURCE
#include <unistd.h>
#include <sys/types.h>
#include <stdio.h>
#include <time.h>
#include <signal.h>

#define TRUE 1
#define FALSE 0

int loop;

void handler( int signum )
{
	loop = FALSE;
}

void mypause( void )
{
	loop = TRUE;
	while( loop == TRUE );
	printf( "\n" );
}

int main( void )
{
	signal( SIGINT, handler );

	printf( "press F4 to see message and syscall counts...\n" );
	printf( "press DEL to continue...\n" );

	mypause();

	printf( "making system call getpid()...\n" );
	getpid();

	printf( "press F4 to see message and syscall counts...\n" );
	printf( "press DEL to continue...\n" );

	mypause();

	printf( "making system call pause()...\n" );

	printf( "press F4 to see message and syscall counts...\n" );
	printf( "press DEL to exit...\n" );

	pause();
	printf( "\n" );

	return 0;
}