Function sbwait

freebsd/kern/uipc_sockbuf.c:442–452

* Wait for data to arrive at/drain from a socket buffer. */

 * Wait for data to arrive at/drain from a socket buffer.
 */
int
sbwait(struct sockbuf *sb)
{

	SOCKBUF_LOCK_ASSERT(sb);

	sb->sb_flags |= SB_WAIT;
	return (msleep_sbt(&sb->sb_acc, &sb->sb_mtx,
	    (sb->sb_flags & SB_NOINTR) ? PSOCK : PSOCK | PCATCH, "sbwait",
	    sb->sb_timeo, 0, 0));
}

int
sblock(struct sockbuf *sb, int flags)