From aec8ff5154344a77d5ff4fc633c7e73c2975c3ed Mon Sep 17 00:00:00 2001
From: cozis <francesco.cozzuto@gmail.com>
Date: Tue, 2 Jun 2026 13:54:33 +0200
Subject: [PATCH] io_interface: Modify netWrite to only block while reading
 into the first slice

---
 src/io_interface.zig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/io_interface.zig b/src/io_interface.zig
index ab41a88..62b3239 100644
--- a/src/io_interface.zig
+++ b/src/io_interface.zig
@@ -1215,9 +1215,13 @@ fn netRead(userdata: ?*anyopaque, fd: net.Socket.Handle, data: [][]u8) net.Strea
         if (buffer.len == 0)
             continue;
 
-        const n = node.readSocket(fd, buffer, true) catch |err| switch (err) {
+        const block = (copied == 0);
+        const n = node.readSocket(fd, buffer, block) catch |e| switch (e) {
             error.InvalidHandle => return error.SocketUnconnected,
         };
+        if (n == 0)
+            break;
+
         copied += n;
 
         if (n < buffer.len)