From c9e7cf4ea1843d167e9f9e604bc8eb5ccdee8631 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Tue, 5 Apr 2022 23:46:42 +0200
Subject: [PATCH] xwayland: Add API to send signal to the Xwayland process

Will be used for test cases to fake-crash the Xwayland process.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2364>
---
 src/wayland/meta-xwayland.c | 16 ++++++++++++++++
 src/wayland/meta-xwayland.h |  5 +++++
 2 files changed, 21 insertions(+)

diff --git a/src/wayland/meta-xwayland.c b/src/wayland/meta-xwayland.c
index 4bf45f3dc..9b61ce569 100644
--- a/src/wayland/meta-xwayland.c
+++ b/src/wayland/meta-xwayland.c
@@ -1276,3 +1276,19 @@ meta_xwayland_handle_xevent (XEvent *event)
 
   return FALSE;
 }
+
+gboolean
+meta_xwayland_signal (MetaXWaylandManager  *manager,
+                      int                   signum,
+                      GError              **error)
+{
+  if (!manager->proc)
+    {
+      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+                   "Can't send signal, Xwayland not running");
+      return FALSE;
+    }
+
+  g_subprocess_send_signal (manager->proc, signum);
+  return TRUE;
+}
diff --git a/src/wayland/meta-xwayland.h b/src/wayland/meta-xwayland.h
index dac9c689f..cbe27b183 100644
--- a/src/wayland/meta-xwayland.h
+++ b/src/wayland/meta-xwayland.h
@@ -50,4 +50,9 @@ void
 meta_xwayland_associate_window_with_surface (MetaWindow          *window,
                                              MetaWaylandSurface  *surface);
 
+META_EXPORT_TEST
+gboolean meta_xwayland_signal (MetaXWaylandManager  *manager,
+                               int                   signum,
+                               GError              **error);
+
 #endif /* META_XWAYLAND_H */