add Fd type for requests

This is not tested code, since there are no requests
implemented yet using file descriptors.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/wl/display.zig b/src/wl/display.zig
index db5ed3c..ed4a94f 100644
--- a/src/wl/display.zig
+++ b/src/wl/display.zig
@@ -1,6 +1,7 @@
 const std = @import("std");
 const wayland = @import("../root.zig");
 const wl = wayland.wl;
+const ancillary_data = @import("../ancillary-data.zig");
 
 const log = std.log.scoped(.display);
 
@@ -85,6 +86,7 @@ pub fn request(self: *Self, object: anytype, args: @TypeOf(object.*).Request) !v
             const id: u32 = @truncate(object.handle);
 
             var size: u32 = 8;
+            comptime var fds: []std.posix.fd_t = &.{};
 
             inline for (data) |value| {
                 switch (@TypeOf(value)) {
@@ -94,6 +96,7 @@ pub fn request(self: *Self, object: anytype, args: @TypeOf(object.*).Request) !v
                         const padding_size: usize = padding_len(u8, value.len + 1);
                         size += @as(u32, @intCast(@sizeOf(u32) + (value.len + 1) + padding_size));
                     },
+                    wayland.types.Fd => |fd| fds = fds ++ .{ fd },
                     else => |t| switch (@typeInfo(t)) {
                         .pointer => |ptr| if (ptr.size == .slice) {
                             const padding_size: usize = padding_len(ptr.child, value.len);
@@ -119,6 +122,7 @@ pub fn request(self: *Self, object: anytype, args: @TypeOf(object.*).Request) !v
                             _ = try self.stream.writeAll(std.mem.asBytes(&@as(u8, 0)));
                         }
                     },
+                    wayland.types.Fd => {},
                     else => |t| switch (@typeInfo(t)) {
                         .pointer => |ptr| if (ptr.size == .slice) {
                             const padding_size: usize = @mod(@as(usize, @bitCast(-@as(isize, @intCast(value.len * @sizeOf(ptr.child))))), 4);
@@ -132,6 +136,11 @@ pub fn request(self: *Self, object: anytype, args: @TypeOf(object.*).Request) !v
                     },
                 }
             }
+
+            if (fds.len > 0) {
+                try ancillary_data.send_fds(self.stream.handle, fds);
+            }
+
             return;
         }
     }