From 0e11a9732efc76754b485c5988e897e2494c1307 Mon Sep 17 00:00:00 2001
From: Ryan Lester <hacker@linux.com>
Date: Wed, 5 May 2021 00:40:04 -0400
Subject: [PATCH] fix and optimization for non-x86 architectures

https://github.com/ashi009/node-fast-crc32c/issues/21
---
 impls/rs_crc32c.js | 5 +++++
 loader.js          | 5 ++++-
 package.json       | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 impls/rs_crc32c.js

diff --git a/impls/rs_crc32c.js b/impls/rs_crc32c.js
new file mode 100644
index 0000000..72750ae
--- /dev/null
+++ b/impls/rs_crc32c.js
@@ -0,0 +1,5 @@
+const {crc32c} = require('@node-rs/crc32');
+
+module.exports = {
+  calculate: crc32c,
+};
diff --git a/loader.js b/loader.js
index a983814..df56b5d 100644
--- a/loader.js
+++ b/loader.js
@@ -1,6 +1,9 @@
 module.exports = (function() {
+  const os = require('os');
+  const isX86 = new Set(['ia32', 'x32', 'x64']).has(os.arch());
   const impls = [
-    './impls/sse4_crc32c',
+    ...(isX86 ? ['./impls/sse4_crc32c'] : []),
+    './impls/rs_crc32c',
     './impls/js_crc32c',
   ];
   for (const impl of impls) {
diff --git a/package.json b/package.json
index 738bde8..47b0bba 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
   },
   "main": "./loader",
   "optionalDependencies": {
+    "@node-rs/crc32": "^1.1.0",
     "sse4_crc32": "^6.0.1"
   },
   "scripts": {