X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..4a2492630c73add3c3aa8a805ba4ff343d4a58ea:/bsd/kern/uipc_socket2.c

diff --git a/bsd/kern/uipc_socket2.c b/bsd/kern/uipc_socket2.c
index 735acaf4c..82e610589 100644
--- a/bsd/kern/uipc_socket2.c
+++ b/bsd/kern/uipc_socket2.c
@@ -456,6 +456,9 @@ sowakeup(so, sb)
 	}
 	if (sb->sb_flags & SB_UPCALL)
 		(*so->so_upcall)(so, so->so_upcallarg, M_DONTWAIT);
+	if (sb->sb_flags & SB_KNOTE &&
+		!(sb->sb_sel.si_flags & SI_INITED))
+		KNOTE(&sb->sb_sel.si_note, 0);
 }
 
 /*
@@ -607,8 +610,10 @@ sbappend(sb, m)
 	kp = sotokextcb(sbtoso(sb));
 	while (kp) {
 		if (kp->e_sout && kp->e_sout->su_sbappend) {
-			if ((*kp->e_sout->su_sbappend)(sb, m, kp))
+			if ((*kp->e_sout->su_sbappend)(sb, m, kp)) {
+				KERNEL_DEBUG((DBG_FNC_SBAPPEND | DBG_FUNC_END), sb, sb->sb_cc, kp, 0, 0);
 				return;
+			}
 		}
 		kp = kp->e_next;
 	}
@@ -619,6 +624,7 @@ sbappend(sb, m)
 		do {
 			if (n->m_flags & M_EOR) {
 				sbappendrecord(sb, m); /* XXXXXX!!!! */
+				KERNEL_DEBUG((DBG_FNC_SBAPPEND | DBG_FUNC_END), sb, sb->sb_cc, 0, 0, 0);
 				return;
 			}
 		} while (n->m_next && (n = n->m_next));
@@ -945,8 +951,7 @@ sbflush(sb)
 		kp = kp->e_next;
 	}
 
-	if (sb->sb_flags & SB_LOCK)
-		sb_lock(sb);
+	(void)sblock(sb, M_WAIT);
 	while (sb->sb_mbcnt) {
 		/*
 		 * Don't call sbdrop(sb, 0) if the leading mbuf is non-empty:
@@ -958,6 +963,9 @@ sbflush(sb)
 	}
 	if (sb->sb_cc || sb->sb_mb || sb->sb_mbcnt)
 		panic("sbflush: cc %ld || mb %p || mbcnt %ld", sb->sb_cc, (void *)sb->sb_mb, sb->sb_mbcnt);
+
+	sbunlock(sb);
+
 	postevent(0, sb, EV_RWBYTES);
 }
 
@@ -986,8 +994,10 @@ sbdrop(sb, len)
 	kp = sotokextcb(sbtoso(sb));
 	while (kp) {
 		if (kp->e_sout && kp->e_sout->su_sbdrop) {
-			if ((*kp->e_sout->su_sbdrop)(sb, len, kp))
+			if ((*kp->e_sout->su_sbdrop)(sb, len, kp)) {
+				KERNEL_DEBUG((DBG_FNC_SBDROP | DBG_FUNC_END), sb, len, kp, 0, 0);
 				return;
+			}
 		}
 		kp = kp->e_next;
 	}
@@ -1278,7 +1288,7 @@ int	pru_sopoll_notsupp(struct socket *so, int events,
 int 
 sb_notify(struct sockbuf *sb)
 {
-	return ((sb->sb_flags & (SB_WAIT|SB_SEL|SB_ASYNC|SB_UPCALL)) != 0); 
+	return ((sb->sb_flags & (SB_WAIT|SB_SEL|SB_ASYNC|SB_UPCALL|SB_KNOTE)) != 0); 
 }
 
 /*