From e67dd99261dba45c2f8598ad042ab72bf6b7782f Mon Sep 17 00:00:00 2001
From: Cheng Shao <terrorjack@type.dance>
Date: Tue, 25 Mar 2025 10:39:08 +0000
Subject: [PATCH] wasm: add brotli compression for ghci browser mode
This commit adds brotli compression for wasm shared libraries for ghci
browser mode. With BROTLI_MIN_QUALITY, the overhead is negligible, and
it helps reducing amount of transferred data when the browser connects
to the server over a slow connection.
(cherry picked from commit 731217ce68a1093b5f9e26a07d5bd2cdade2b352)
---
utils/jsffi/dyld.mjs | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/utils/jsffi/dyld.mjs b/utils/jsffi/dyld.mjs
index e068f54239a..7c6f7688d4f 100755
--- a/utils/jsffi/dyld.mjs
+++ b/utils/jsffi/dyld.mjs
@@ -277,7 +277,7 @@ const isNode = Boolean(globalThis?.process?.versions?.node);
// factor out browser-only/node-only logic into different modules. For
// now, just make these global let bindings optionally initialized if
// isNode and be careful to not use them in browser-only logic.
-let fs, http, path, require, stream, wasi, ws;
+let fs, http, path, require, stream, util, wasi, ws, zlib;
if (isNode) {
require = (await import("node:module")).createRequire(import.meta.url);
@@ -286,7 +286,9 @@ if (isNode) {
http = require("http");
path = require("path");
stream = require("stream");
+ util = require("util");
wasi = require("wasi");
+ zlib = require("zlib");
// Optional npm dependencies loaded via NODE_PATH
try {
@@ -558,8 +560,17 @@ args.rpc.opened.then(() => main(args));
return;
}
+ res.setHeader("Content-Encoding", "br");
+
res.writeHead(200);
- res.end(buf);
+ res.end(
+ await util.promisify(zlib.brotliCompress)(buf, {
+ params: {
+ [zlib.constants.BROTLI_PARAM_QUALITY]:
+ zlib.constants.BROTLI_MIN_QUALITY,
+ },
+ })
+ );
return;
}
--
GitLab