MAX_IOVECS
static struct iovec *iovec_pool[MAX_IOVECS]; /* each ptr is to an array of iovecs */
static int iovec_used[MAX_IOVECS]; /* non-zero == iovec is in use */
for(i = 0; i < MAX_IOVECS; i++) {
if (i >= MAX_IOVECS) /* uh-oh */
for(i=0; i < MAX_IOVECS; i++) {
if (i < MAX_IOVECS)