Sync OpenBSD patchset 387:

Add a pipe-pane command to allow a pane to be piped to a shell command, for
example:

        pipe-pane 'cat >~/out'

No arguments stops outputing and closes the pipe; the -o flag toggles a pipe
and on and off (useful for key bindings).

Suggested by espie@.

1 files changed, 18 insertions, 1 deletions

diff --git a/server.c b/server.c
index 27ad3d34..0f9a0f4d 100644
--- a/server.c
+++ b/server.c
@@ -1,4 +1,4 @@
-/* $Id: server.c,v 1.205 2009-10-12 00:25:25 tcunha Exp $ */
+/* $Id: server.c,v 1.206 2009-10-12 00:35:08 tcunha Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -575,6 +575,13 @@ server_fill_windows(void)
 			if (BUFFER_USED(wp->out) > 0)
 				events |= POLLOUT;
 			server_poll_add(wp->fd, events);
+
+			if (wp->pipe_fd == -1)
+				continue;
+			events = 0;
+			if (BUFFER_USED(wp->pipe_buf) > 0)
+				events |= POLLOUT;
+			server_poll_add(wp->pipe_fd, events);
 		}
 	}
 }
@@ -603,6 +610,16 @@ server_handle_windows(void)
 				wp->fd = -1;
 			} else
 				server_handle_window(w, wp);
+
+			if (wp->pipe_fd == -1)
+				continue;
+			if ((pfd = server_poll_lookup(wp->pipe_fd)) == NULL)
+				continue;
+			if (buffer_poll(pfd, NULL, wp->pipe_buf) != 0) {
+				buffer_destroy(wp->pipe_buf);
+				close(wp->pipe_fd);
+				wp->pipe_fd = -1;
+			}
 		}
 
 		server_check_window(w);