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/* fre() function */

#include "../fb.h"
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <vm/vm_param.h>

FBCALL size_t fb_GetMemAvail( int mode )
{
	int mib[2] = { CTL_VM, VM_METER };
	struct vmtotal vmt;
	size_t size = sizeof(struct vmtotal);

	if( sysctl( mib, 2, &vmt, &size, NULL, 0 ) )
		return 0;

	return vmt.t_free * sysconf( _SC_PAGE_SIZE );
}