Views generated by each read stat 0, as acme's do: data, xdata, index, layout, recent and listeners; fs.md says which files have real lengths

A stat of index, layout, recent or listeners built the whole view to
count it, and data and xdata reported the body's length though a read
answers what addr selects. Those now stat 0, as screen and pane/new
already did, and fs.md lists the files whose length is real and says to
read the rest to the end.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 2 insertions, 8 deletions

diff --git a/src/ninep/cols.zig b/src/ninep/cols.zig
index 6828612c..b2e62d28 100644
--- a/src/ninep/cols.zig
+++ b/src/ninep/cols.zig
@@ -43,13 +43,6 @@ pub fn writeLayout(p: *Pardes, w: *std.Io.Writer) !void {
     if (p.activeColumn() orelse active) |c| try w.print("active {d}\n", .{layout.columnSerial(p, c)}) else try w.writeAll("active -\n");
 }
 
-pub fn layoutLen(p: *Pardes) u64 {
-    var buf: [256]u8 = undefined;
-    var counting: std.Io.Writer.Discarding = .init(&buf);
-    writeLayout(p, &counting.writer) catch return 0;
-    return counting.fullCount();
-}
-
 /// A header by its node: the workspace's (`serial` null) or the column's
 /// with that serial; null when that column has closed.
 const Header = struct { text: *Text, col: ?usize };
@@ -532,7 +525,8 @@ test "layout lists each column's place, panes and state, and the active one" {
     // Newcol gives the new, empty column's tag the keyboard.
     try testing.expect(std.mem.indexOf(u8, text, "current empty\n") != null);
     try testing.expect(std.mem.endsWith(u8, text, try std.fmt.bufPrint(&want, "active {d}\n", .{new_serial})));
-    try testing.expectEqual(@as(u64, text.len), th.call(p, .{ .tag = 1, .op = .getattr, .node = layout_node }).reply.attr.size);
+    try testing.expect(text.len > 0);
+    try testing.expectEqual(@as(u64, 0), th.call(p, .{ .tag = 1, .op = .getattr, .node = layout_node }).reply.attr.size); // generated by each read
     // /index says which column each pane is in, by its serial, last.
     try testing.expect(std.mem.endsWith(u8, th.rd(p, @intFromEnum(tree.TopFile.index), 0, 4096).bytes, try std.fmt.bufPrint(&want, " {d}\n", .{first_serial})));
     try testing.expect(th.logHas(p, try std.fmt.bufPrint(&want, "newcol {d}\n", .{new_serial})));