Handle EPIPE as a common connection close event.

2 files changed, 11 insertions, 2 deletions

diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c
index 378cc85..253322c 100644
--- a/proto/bgp/bgp.c
+++ b/proto/bgp/bgp.c
@@ -434,6 +434,15 @@ bgp_sock_err(sock *sk, int err)
   struct bgp_conn *conn = sk->data;
   struct bgp_proto *p = conn->bgp;
 
+  /*
+   * This error hook may be called either asynchronously from main
+   * loop, or synchronously from sk_send().  But sk_send() is called
+   * only from bgp_tx() and bgp_kick_tx(), which are both called
+   * asynchronously from main loop. Moreover, they end if err hook is
+   * called. Therefore, we could suppose that it is always called
+   * asynchronously.
+   */
+
   bgp_store_error(p, conn, BE_SOCKET, err);
 
   if (err)
diff --git a/proto/bgp/packets.c b/proto/bgp/packets.c
index 2160182..1e9d646 100644
--- a/proto/bgp/packets.c
+++ b/proto/bgp/packets.c
@@ -594,7 +594,7 @@ bgp_kick_tx(void *vconn)
   struct bgp_conn *conn = vconn;
 
   DBG("BGP: kicking TX\n");
-  while (bgp_fire_tx(conn))
+  while (bgp_fire_tx(conn) > 0)
     ;
 }
 
@@ -604,7 +604,7 @@ bgp_tx(sock *sk)
   struct bgp_conn *conn = sk->data;
 
   DBG("BGP: TX hook\n");
-  while (bgp_fire_tx(conn))
+  while (bgp_fire_tx(conn) > 0)
     ;
 }