feat: add std/signal/mod.ts (#3913)

1 files changed, 28 insertions, 0 deletions

diff --git a/std/signal/mod.ts b/std/signal/mod.ts
new file mode 100644
index 000000000..e368edbd1
--- /dev/null
+++ b/std/signal/mod.ts
@@ -0,0 +1,28 @@
+import { MuxAsyncIterator } from "../util/async.ts";
+
+export function signal(
+  ...signos: [number, ...number[]]
+): AsyncIterable<void> & { dispose: () => void } {
+  const mux = new MuxAsyncIterator<void>();
+
+  if (signos.length < 1) {
+    throw new Error(
+      "No signals are given. You need to specify at least one signal to create a signal stream."
+    );
+  }
+
+  const streams = signos.map(Deno.signal);
+
+  streams.forEach(stream => {
+    mux.add(stream);
+  });
+
+  // Create dispose method for the muxer of signal streams.
+  const dispose = (): void => {
+    streams.forEach(stream => {
+      stream.dispose();
+    });
+  };
+
+  return Object.assign(mux, { dispose });
+}