From 070d5fe910fb554924602724ce80ce2a7f7417d3 Mon Sep 17 00:00:00 2001
From: Alexander Heldt <me@alexanderheldt.se>
Date: Sun, 9 Nov 2025 18:23:06 +0100
Subject: [PATCH] wip

---
 src/ipc.gleam | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 src/ipc.gleam

diff --git a/src/ipc.gleam b/src/ipc.gleam
new file mode 100644
index 0000000..4cdff46
--- /dev/null
+++ b/src/ipc.gleam
@@ -0,0 +1,42 @@
+pub type Socket
+
+// https://www.erlang.org/doc/apps/kernel/inet#t:address_family/0
+// local socket
+type Local {
+  Local(socket_path: String)
+}
+
+type ModeValue {
+  Binary
+}
+
+type GenTcpOption {
+  Active(Bool)
+  Mode(ModeValue)
+}
+
+pub type ConnectionError {
+  ConnectionError(String)
+}
+
+pub fn connect(socket_path: String) -> Result(Socket, ConnectionError) {
+  let options = [Mode(Binary), Active(False)]
+
+  // timeout in ms
+  let timeout = 1000
+
+  case gen_tcp_connect(Local(socket_path), 0, options, timeout) {
+    Error(err) -> Error(err)
+    Ok(socket) -> Ok(socket)
+  }
+}
+
+// connect/4
+// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#connect/4
+@external(erlang, "gen_tcp", "connect")
+fn gen_tcp_connect(
+  address: Local,
+  port: Int,
+  options: List(GenTcpOption),
+  timeout: Int,
+) -> Result(Socket, ConnectionError)