From 6e828b498ea16af2d52b62922d18d868e1b85d2b Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Fri, 22 May 2026 13:50:44 -0700
Subject: [PATCH] NullWriter: add writev

---
 null_writer.zig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/null_writer.zig b/null_writer.zig
index f543a2f0f79f160e098212c9d24ad0090fecd6f6..325213f28b1fd27b692f88554e339f21541b1fb5 100644
--- a/null_writer.zig
+++ b/null_writer.zig
@@ -1,7 +1,13 @@
 const std = @import("std");
+const builtin = @import("builtin");
 const extras = @import("extras");
 const nio = @import("./nio.zig");
 
+const sys = switch (builtin.target.os.tag) {
+    .linux => @import("sys-linux"),
+    else => unreachable,
+};
+
 pub const NullWriter = struct {
     const W = nio.Writable(@This(), ._var);
     pub const writeAll = W.writeAll;
@@ -18,4 +24,10 @@ pub const NullWriter = struct {
         _ = self;
         return bytes.len;
     }
+    pub fn writev(self: NullWriter, iovec: []const sys.struct_iovec) WriteError!usize {
+        _ = self;
+        var res: u64 = 0;
+        for (iovec) |item| res += item.len;
+        return res;
+    }
 };
-- 
2.54.0