X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fio%2Fpoll.c;h=18691e17b4fc1c8a9247062be0fdaa5e84f9d170;hp=31a56600fe487b836e8bf1b8bdb88ecfa75953e0;hb=f508ed408b230c21341778370ab04def8e7aba3a;hpb=641b511049e5c03d45ada0c3fd829691b173e5d1

diff --git a/ccan/io/poll.c b/ccan/io/poll.c
index 31a56600..18691e17 100644
--- a/ccan/io/poll.c
+++ b/ccan/io/poll.c
@@ -28,7 +28,7 @@ static void io_loop_exit(void)
 		while (free_later) {
 			struct io_conn *c = free_later;
 			free_later = c->finish_arg;
-			free(c);
+			io_alloc.free(c);
 		}
 	}
 }
@@ -42,7 +42,7 @@ static void free_conn(struct io_conn *conn)
 		conn->finish_arg = free_later;
 		free_later = conn;
 	} else
-		free(conn);
+		io_alloc.free(conn);
 }
 #else
 static void io_loop_enter(void)
@@ -53,7 +53,7 @@ static void io_loop_exit(void)
 }
 static void free_conn(struct io_conn *conn)
 {
-	free(conn);
+	io_alloc.free(conn);
 }
 #endif
 
@@ -64,11 +64,11 @@ static bool add_fd(struct fd *fd, short events)
 		struct fd **newfds;
 		size_t num = max_fds ? max_fds * 2 : 8;
 
-		newpollfds = realloc(pollfds, sizeof(*newpollfds) * num);
+		newpollfds = io_alloc.realloc(pollfds, sizeof(*newpollfds)*num);
 		if (!newpollfds)
 			return false;
 		pollfds = newpollfds;
-		newfds = realloc(fds, sizeof(*newfds) * num);
+		newfds = io_alloc.realloc(fds, sizeof(*newfds) * num);
 		if (!newfds)
 			return false;
 		fds = newfds;
@@ -105,10 +105,18 @@ static void del_fd(struct fd *fd)
 		fds[n] = fds[num_fds-1];
 		assert(fds[n]->backend_info == num_fds-1);
 		fds[n]->backend_info = n;
+		/* If that happens to be a duplex, move that too. */
+		if (!fds[n]->listener) {
+			struct io_conn *c = (void *)fds[n];
+			if (c->duplex) {
+				assert(c->duplex->fd.backend_info == num_fds-1);
+				c->duplex->fd.backend_info = n;
+			}
+		}
 	} else if (num_fds == 1) {
 		/* Free everything when no more fds. */
-		free(pollfds);
-		free(fds);
+		io_alloc.free(pollfds);
+		io_alloc.free(fds);
 		pollfds = NULL;
 		fds = NULL;
 		max_fds = 0;
@@ -175,14 +183,16 @@ bool add_duplex(struct io_conn *c)
 void backend_del_conn(struct io_conn *conn)
 {
 	if (conn->finish) {
-		errno = conn->plan.u.close.saved_errno;
+		/* Saved by io_close */
+		errno = conn->plan.u1.s;
 		conn->finish(conn, conn->finish_arg);
 	}
 	if (timeout_active(conn))
 		backend_del_timeout(conn);
-	free(conn->timeout);
+	io_alloc.free(conn->timeout);
 	if (conn->duplex) {
 		/* In case fds[] pointed to the other one. */
+		assert(conn->duplex->fd.backend_info == conn->fd.backend_info);
 		fds[conn->fd.backend_info] = &conn->duplex->fd;
 		conn->duplex->duplex = NULL;
 		conn->fd.backend_info = -1;
@@ -345,7 +355,11 @@ void *do_io_loop(struct io_conn **ready)
 						 * anything can change. */
 						if (doing_debug())
 							break;
-						if (!(events&(POLLIN|POLLOUT)))
+
+						/* If no events, or it closed
+						 * the duplex, continue. */
+						if (!(events&(POLLIN|POLLOUT))
+						    || !c->plan.next)
 							continue;
 					}
 				}