Add getloadavg.c

Author: Ammon Smith

src/getloadavg.c

@@ -0,0 +1,23 @@
+#define _DEFAULT_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ARRAY_SIZE(x)	(sizeof(x) / sizeof((x)[0]))
+#define UNUSED(x)	((void)(x))
+
+int main(int argc, char *argv[])
+{
+	double up[3];
+
+	UNUSED(argc);
+	UNUSED(argv);
+
+	if (getloadavg(up, ARRAY_SIZE(up)) < 0) {
+		fprintf(stderr, "%s: getloadavg() failed\n", argv[0]);
+		return 1;
+	}
+
+	printf("%.2f %.2f %.2f\n", up[0], up[1], up[2]);
+	return 0;
+}