From 8c55c00a5f2cafd84e46aaf2e0309339394b9d00 Mon Sep 17 00:00:00 2001
From: htrefil <8711792+htrefil@users.noreply.github.com>
Date: Thu, 17 Sep 2020 17:49:23 +0200
Subject: [PATCH] Move enum Event to crate input, begin work on EventWriter

---
 {proto => input}/src/event.rs |  0
 input/src/event_writer.rs     | 33 ++++++++++++++++++++++++++++++++-
 input/src/lib.rs              |  5 +++++
 proto/src/lib.rs              |  2 +-
 4 files changed, 38 insertions(+), 2 deletions(-)
 rename {proto => input}/src/event.rs (100%)

diff --git a/proto/src/event.rs b/input/src/event.rs
similarity index 100%
rename from proto/src/event.rs
rename to input/src/event.rs
diff --git a/input/src/event_writer.rs b/input/src/event_writer.rs
index 1565955..9c46978 100644
--- a/input/src/event_writer.rs
+++ b/input/src/event_writer.rs
@@ -1 +1,32 @@
-pub struct EventWriter {}
+use crate::async_file::{AsyncFile, OpenMode};
+use crate::bindings;
+use libc::c_int;
+use std::io::Error;
+use std::os::unix::io::AsRawFd;
+
+pub struct EventWriter {
+    file: AsyncFile,
+}
+
+impl EventWriter {
+    pub async fn new() -> Result<Self, Error> {
+        let file = AsyncFile::open("/dev/uinput", OpenMode::Write).await?;
+        let fd = file.as_raw_fd();
+
+        for evbit in &[bindings::EV_KEY, bindings::EV_REL] {
+            // Doesn't work, UI_SET_KEYBIT not found.
+            // Probably too complicated for bindgen to be able to do something with it.
+            check_ioctl(unsafe { libc::ioctl(fd, bindings::UI_SET_KEYBIT, evbit) })?;
+        }
+
+        Ok(EventWriter { file })
+    }
+}
+
+fn check_ioctl(ret: c_int) -> Result<(), Error> {
+    if ret == -1 {
+        return Err(Error::last_os_error());
+    }
+
+    Ok(())
+}
diff --git a/input/src/lib.rs b/input/src/lib.rs
index 8bf63c4..81d3232 100644
--- a/input/src/lib.rs
+++ b/input/src/lib.rs
@@ -1,4 +1,9 @@
 mod async_file;
 mod bindings;
+mod event;
 mod event_reader;
 mod event_writer;
+
+pub use event::Event;
+pub use event_reader::EventReader;
+pub use event_writer::EventWriter;
diff --git a/proto/src/lib.rs b/proto/src/lib.rs
index 428d00a..8b13789 100644
--- a/proto/src/lib.rs
+++ b/proto/src/lib.rs
@@ -1 +1 @@
-mod event;
+