Rename send_signal to signal

lib_eio_linux/eio_linux.ml

@@ -949,7 +949,7 @@ module Low_level = struct
         t.hook <- hook;
         t
 
-        let send_signal t i = pidfd_send_signal (FD.to_unix `Peek t.process) i
+        let signal t i = pidfd_send_signal (FD.to_unix `Peek t.process) i
     end
 end
 

lib_eio_linux/eio_linux.mli

@@ -270,7 +270,8 @@ module Low_level : sig
     (** [wait t] waits for the process [t] to exit. This blocks the fiber until the process
         has finished. *)
 
-    val send_signal : t -> int -> unit
-    (** A wrapper for {!Unix.kill}. *)
+    val signal : t -> int -> unit
+    (** [signal t s] send a signal [s] to process [t]. For example to stop a process you could use
+        [signal t Sys.sigkill]. *)
   end
 end

lib_eio_linux/tests/process.md

@@ -71,7 +71,7 @@ Stopping a process works.
 # Eio_linux.run @@ fun _env ->
   Switch.run @@ fun sw ->
   let t = Process.spawn ~sw "sleep" [ "sleep"; "10" ] in
-  Process.send_signal t Sys.sigkill;
+  Process.signal t Sys.sigkill;
   Process.wait t;;
 - : Unix.process_status = Unix.WSIGNALED (-7)
 ```
@@ -95,7 +95,7 @@ Stopping a process interacts nicely with switches.
   let proc =
     Switch.run @@ fun sw ->
     let t = Process.spawn ~sw "sleep" [ "sleep"; "10" ] in
-    Process.send_signal t Sys.sigkill;
+    Process.signal t Sys.sigkill;
     t
   in
   Process.wait proc;;