From 7ea10864c2fc7370f5ada88a3fc91ab5f188da00 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= <krh@bitplanet.net>
Date: Mon, 5 Mar 2012 17:49:30 -0500
Subject: [PATCH] compositor: Move input devices to their own event loop

First step towards only handling input at repaint time.
---
 src/compositor.c | 19 +++++++++++++++++++
 src/compositor.h |  3 +++
 src/evdev.c      |  4 +---
 3 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/compositor.c b/src/compositor.c
index 44faa947..62277b97 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -2268,6 +2268,16 @@ compositor_bind(struct wl_client *client,
 			     &compositor_interface, id, compositor);
 }
 
+static int
+weston_compositor_read_input(int fd, uint32_t mask, void *data)
+{
+	struct weston_compositor *compositor = data;
+
+	wl_event_loop_dispatch(compositor->input_loop, 0);
+
+	return 1;
+}
+
 WL_EXPORT int
 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display)
 {
@@ -2337,6 +2347,15 @@ weston_compositor_init(struct weston_compositor *ec, struct wl_display *display)
 	ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
 	wl_event_source_timer_update(ec->idle_source, ec->idle_time * 1000);
 
+	ec->input_loop = wl_event_loop_create();
+
+	ec->input_loop_source =
+		wl_event_loop_add_fd(loop,
+				     wl_event_loop_get_fd(ec->input_loop),
+				     WL_EVENT_READABLE,
+				     weston_compositor_read_input, ec);
+
+
 	weston_compositor_schedule_repaint(ec);
 
 	return 0;
diff --git a/src/compositor.h b/src/compositor.h
index 6f462493..b94731b8 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -184,6 +184,9 @@ struct weston_compositor {
 
 	struct weston_shell *shell;
 
+	struct wl_event_loop *input_loop;
+	struct wl_event_source *input_loop_source;
+
 	/* There can be more than one, but not right now... */
 	struct wl_input_device *input_device;
 
diff --git a/src/evdev.c b/src/evdev.c
index f489ede0..530eb6b6 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -437,7 +437,6 @@ evdev_input_device_create(struct evdev_input *master,
 			  struct wl_display *display, const char *path)
 {
 	struct evdev_input_device *device;
-	struct wl_event_loop *loop;
 	struct weston_compositor *ec;
 
 	device = malloc(sizeof *device);
@@ -463,8 +462,7 @@ evdev_input_device_create(struct evdev_input *master,
 	if (evdev_configure_device(device) == -1)
 		goto err1;
 
-	loop = wl_display_get_event_loop(display);
-	device->source = wl_event_loop_add_fd(loop, device->fd,
+	device->source = wl_event_loop_add_fd(ec->input_loop, device->fd,
 					      WL_EVENT_READABLE,
 					      evdev_input_device_data, device);
 	if (device->source == NULL)