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    Length: 797 (0x31d)
    Types: TextFile
    Names: »getloadavg.c«

└─⟦9ae75bfbd⟧ Bits:30007242 EUUGD3: Starter Kit
    └─⟦02f44f254⟧ »EurOpenD3/mail/sendmail.5.65.tar.Z« 
        └─⟦4e8d58309⟧ 
            └─⟦this⟧ »./support/getloadavg.c« 

TextFile

/*
**  GETLA -- get the current load average
**
**	This code stolen from la.c.
**
**	Parameters:
**		none.
**
**	Returns:
**		The current load average as an integer.
**
**	Side Effects:
**		none.
*/

#include <sys/types.h>
#include <sys/ioctl.h>
#include <nlist.h>

struct	nlist Nl[] =
{
	{ "_avenrun" },
#define	X_AVENRUN	0
	{ 0 },
};

/* ARGSUSED */
getloadavg(avenrun, n)
	double *avenrun;
	int n;
{
	static int kmem = -1;
	extern off_t lseek();

	if (kmem < 0) {
		kmem = open("/dev/kmem", 0, 0);
		if (kmem < 0)
			return (-1);
		(void) ioctl(kmem, (int) FIOCLEX, (char *) 0);
		nlist("/vmunix", Nl);
		if (Nl[0].n_type == 0)
			return (-1);
	}
	if (lseek(kmem, (off_t) Nl[X_AVENRUN].n_value, 0) == -1 ||
	    read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun))
		return (-1);
}