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-rw-r--r--examples/mmap/2.js22
1 files changed, 22 insertions, 0 deletions
diff --git a/examples/mmap/2.js b/examples/mmap/2.js
new file mode 100644
index 000000000..c4b68bd9a
--- /dev/null
+++ b/examples/mmap/2.js
@@ -0,0 +1,22 @@
+const map = Bun.mmap("./mmap.txt");
+
+function buffer_hash(buffer) {
+ let hash = 0;
+ for (let i = 0; i < buffer.length; i++) {
+ hash = (hash << 5) - hash + buffer[i];
+ hash |= 0; // Convert to 32bit integer
+ }
+ return hash;
+}
+
+const decoder = new TextDecoder();
+
+let hash = buffer_hash(map);
+console.log(decoder.decode(map));
+
+while (true) {
+ if (buffer_hash(map) !== hash) {
+ hash = buffer_hash(map);
+ console.log(`mmap changed to ~> ${decoder.decode(map)}`);
+ }
+}