Add peer_full function.

btpd/peer.c

@@ -550,3 +550,9 @@ peer_active_up(struct peer *p)
     return (p->flags & (PF_P_WANT|PF_I_CHOKE)) == PF_P_WANT
         || p->npiece_msgs > 0;
 }
+
+int
+peer_full(struct peer *p)
+{
+    return p->npieces == p->n->tp->meta.npieces;
+}

btpd/peer.h

@@ -60,5 +60,6 @@ int peer_wanted(struct peer *p);
 int peer_laden(struct peer *p);
 int peer_has(struct peer *p, uint32_t index);
 int peer_leech_ok(struct peer *p);
+int peer_full(struct peer *p);
 
 #endif