Use proc_lib

Author: lpil

CHANGELOG.md

@@ -16,7 +16,9 @@
     of `call` and `call_forever`.
   - The `CallError` type has been removed.
   - The `start` function has been replaced by the `spawn` and `spawn_unlinked`
-    functions.
+    functions. These functions use the Erlang `proc_lib` spawn functions and so
+    benefit from the functionality described in the
+    [`proc_lib` documentation](https://www.erlang.org/doc/apps/stdlib/proc_lib.html).
   - The `subject_owner` function now returns a result as a named subject may not
     have any process registered for that name.
   - The `selecting_*` functions have been replaced by the

src/gleam/erlang/process.gleam

@@ -28,7 +28,11 @@ pub fn self() -> Pid
 ///
 /// [1]: https://www.erlang.org/doc/reference_manual/processes.html
 ///
-@external(erlang, "erlang", "spawn_link")
+/// This function starts processes via the Erlang `proc_lib` module, and as
+/// such they benefit from the functionality described in the
+/// [`proc_lib` documentation](https://www.erlang.org/doc/apps/stdlib/proc_lib.html).
+///
+@external(erlang, "proc_lib", "spawn_link")
 pub fn spawn(running: fn() -> anything) -> Pid
 
 /// Create a new Erlang process that runs concurrently to the creator. In other
@@ -41,7 +45,11 @@ pub fn spawn(running: fn() -> anything) -> Pid
 ///
 /// [1]: https://www.erlang.org/doc/reference_manual/processes.html
 ///
-@external(erlang, "erlang", "spawn")
+/// This function starts processes via the Erlang `proc_lib` module, and as
+/// such they benefit from the functionality described in the
+/// [`proc_lib` documentation](https://www.erlang.org/doc/apps/stdlib/proc_lib.html).
+///
+@external(erlang, "proc_lib", "spawn")
 pub fn spawn_unlinked(a: fn() -> anything) -> Pid
 
 /// A `Subject` is a value that processes can use to send and receive messages