From 6ec68dcb479f495bfbe17b2092f4575d7e21119b Mon Sep 17 00:00:00 2001
From: Patrick
Date: Thu, 27 Aug 2026 10:01:45 +0200
Subject: at least 0.15

---
 ws_epoll.zig | 46 ++++++++++++++++++++++++++++------------------
 1 file changed, 28 insertions(+), 18 deletions(-)

(limited to 'ws_epoll.zig')

diff --git a/ws_epoll.zig b/ws_epoll.zig
index b86237d..07195e0 100644
--- a/ws_epoll.zig
+++ b/ws_epoll.zig
@@ -6,7 +6,7 @@ const echo = std.debug.print;
 
 const html =
     \\<script>
-    \\let s = new WebSocket("wss://" + window.location.hostname + ":8443");
+    \\let s = new WebSocket("wss://" + window.location.hostname + ":7777");
     \\s.addEventListener("open", (event) => {
     \\  console.log("connected");
     \\  s.send("Hello Server!");
@@ -23,8 +23,10 @@ var g_buffer: [1024]u8 = undefined;
 fn respondHttp(stream: std.net.Stream, msg: []const u8) !void {
     _ = msg;
 
-    try std.fmt.format(
-        stream.writer(),
+    var writer_buffer: [1024]u8 = undefined;
+    var writer = stream.writer(&writer_buffer);
+
+    try writer.interface.print(
         "HTTP/1.1 200 OK\r\nContent-Length: {}\r\n\r\n{s}",
         .{ html.len, html },
     );
@@ -32,12 +34,14 @@ fn respondHttp(stream: std.net.Stream, msg: []const u8) !void {
 
 fn respondWs(stream: std.net.Stream, msg: []const u8) !void {
     // TODO: handle msg length (< 128)
-    var response_buffer = try std.BoundedArray(u8, 128).init(0);
-    var writer = response_buffer.writer();
+    var response_buffer = std.mem.zeroes([128]u8);
+    var fbs = std.io.fixedBufferStream(&response_buffer);
+    var writer = fbs.writer();
+
     _ = try writer.writeByte(0b10000001);
     _ = try writer.writeByte(@truncate(msg.len));
     _ = try writer.write(msg);
-    _ = try stream.write(response_buffer.constSlice());
+    _ = try stream.write(fbs.getWritten());
 }
 
 fn handleHttp(stream: std.net.Stream, msg: []const u8) !bool {
@@ -53,18 +57,22 @@ fn handleWsUpgrade(stream: std.net.Stream, msg: []const u8) !bool {
         const key = msg[idx + 19 .. end];
         echo("key: {s}\n", .{key});
 
-        var concat = try std.BoundedArray(u8, 128).init(0);
-        _ = try concat.writer().write(key);
-        _ = try concat.writer().write("258EAFA5-E914-47DA-95CA-C5AB0DC85B11");
+        var concat_buffer = std.mem.zeroes([128]u8);
+        var fbs = std.io.fixedBufferStream(&concat_buffer);
+        var writer = fbs.writer();
+        _ = try writer.write(key);
+        _ = try writer.write("258EAFA5-E914-47DA-95CA-C5AB0DC85B11");
 
         var hashed: [20]u8 = undefined;
-        std.crypto.hash.Sha1.hash(concat.constSlice(), &hashed, .{});
+        std.crypto.hash.Sha1.hash(fbs.getWritten(), &hashed, .{});
 
         var encoded: [28]u8 = undefined;
         _ = std.base64.standard.Encoder.encode(&encoded, &hashed);
 
-        try std.fmt.format(
-            stream.writer(),
+        var writer_buffer = std.mem.zeroes([1024]u8);
+
+        var stream_writer = stream.writer(&writer_buffer);
+        try stream_writer.interface.print(
             "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: {s}\r\n\r\n",
             .{encoded},
         );
@@ -103,13 +111,14 @@ fn handleWs(stream: std.net.Stream, frame: []const u8) !bool {
     const mask = frame[msgIndex .. msgIndex + 4];
 
     const encoded = frame[msgIndex + 4 .. frame.len];
-    var decoded = try std.BoundedArray(u8, 1024).init(0);
+    var decoded_buffer = std.mem.zeroes([1024]u8);
+    var decoded = std.ArrayList(u8).fromOwnedSlice(&decoded_buffer);
 
     for (0..encoded.len) |i| {
-        try decoded.append(encoded[i] ^ mask[i % 4]);
+        try decoded.appendBounded(encoded[i] ^ mask[i % 4]);
     }
 
-    echo("tcp: [{}] {s}\n", .{ .{ FIN, RSV1, RSV2, RSV3, OPCODE, MASK, payloadLength, mask }, decoded.constSlice() });
+    echo("tcp: [{}] {s}\n", .{ .{ FIN, RSV1, RSV2, RSV3, OPCODE, MASK, payloadLength, mask }, decoded.items });
 
     try respondWs(stream, "yooooooo");
     // _ = try stream.write(frame);
@@ -145,7 +154,7 @@ const Client = struct {
 };
 
 pub fn main() !void {
-    const address = try std.net.Address.parseIp("127.0.0.1", 8000);
+    const address = try std.net.Address.parseIp("0.0.0.0", 7777);
 
     const tpe: u32 = posix.SOCK.STREAM | posix.SOCK.NONBLOCK;
     const protocol = posix.IPPROTO.TCP;
@@ -168,7 +177,8 @@ pub fn main() !void {
     }
 
     var ready_list: [128]linux.epoll_event = undefined;
-    var client_list = try std.BoundedArray(Client, 128).init(0);
+    var client_buffer = std.mem.zeroes([128]Client);
+    var client_list = std.ArrayList(Client).fromOwnedSlice(&client_buffer);
 
     while (true) {
         const ready_count = posix.epoll_wait(efd, &ready_list, -1);
@@ -178,7 +188,7 @@ pub fn main() !void {
             if (ready_socket == listener) {
                 const client_socket = try posix.accept(listener, null, null, posix.SOCK.NONBLOCK);
                 errdefer posix.close(client_socket);
-                var new_client = try client_list.addOne();
+                var new_client = try client_list.addOneBounded();
                 new_client.fd = client_socket;
                 var event = linux.epoll_event{ .events = linux.EPOLL.IN, .data = .{ .ptr = @intFromPtr(new_client) } };
                 try posix.epoll_ctl(efd, linux.EPOLL.CTL_ADD, client_socket, &event);
-- 
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