[PATCH weston v2 3/6] test: Add clock_settime()

[Derek Foreman]

Add a way to set the presentation clock to an arbitrary value, but only
when in test mode.

Signed-off-by: Derek Foreman <derekf at osg.samsung.com>
---
 protocol/wayland-test.xml |  9 +++++++++
 src/compositor.c          | 23 +++++++++++++++++++++++
 src/compositor.h          |  4 ++++
 tests/weston-test.c       | 13 +++++++++++++
 4 files changed, 49 insertions(+)

diff --git a/protocol/wayland-test.xml b/protocol/wayland-test.xml
index 292abe9..70016ce 100644
--- a/protocol/wayland-test.xml
+++ b/protocol/wayland-test.xml
@@ -68,5 +68,14 @@
         Once test mode is enabled it remains active for the life of the
         compositor.
       </description>
+    <request name="clock_settime">
+      <description summary="set the presentation clock time">
+        Sets the presentation clock time.
+
+        Requires compositor test mode to be active.
+      </description>
+      <arg name="sec" type="string" summary="whole part in seconds"/>
+      <arg name="nsec" type="string" summary="fractional part in seconds"/>
+    </request>
   </interface>
 </protocol>
diff --git a/src/compositor.c b/src/compositor.c
index d645391..6dd0be8 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -4242,6 +4242,29 @@ weston_compositor_presentation_clock_gettime(
 	return clock_gettime(compositor->presentation_clock, ts);
 }
 
+/** Set the presentation clock time when in test mode.
+ *
+ * \param compositor The compositor object
+ * \param ts timespec to set the presentation clock to
+ *
+ * Fails when not in test mode.  Sets the presentation clock
+ * time to the input timespec when in test mode.
+ *
+ * Returns 0 for success or -1 for failure.
+ */
+WL_EXPORT int
+weston_compositor_presentation_clock_settime(
+					 struct weston_compositor *compositor,
+					 const struct timespec *ts)
+{
+	if (!compositor->test_mode) {
+		weston_log("warning: attempt to control presentation clock outside of test mode\n");
+		return -1;
+	}
+	compositor->test_time = *ts;
+	return 0;
+}
+
 WL_EXPORT int
 weston_compositor_set_presentation_clock(struct weston_compositor *compositor,
 					 clockid_t clk_id)
diff --git a/src/compositor.h b/src/compositor.h
index 1fcd067..49c1908 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -1281,6 +1281,10 @@ int
 weston_compositor_presentation_clock_gettime(
 				const struct weston_compositor *compositor,
 				struct timespec *ts);
+int
+weston_compositor_presentation_clock_settime(
+					 struct weston_compositor *compositor,
+					 const struct timespec *ts);
 void
 weston_compositor_shutdown(struct weston_compositor *ec);
 void
diff --git a/tests/weston-test.c b/tests/weston-test.c
index 0a213b2..cb53d71 100644
--- a/tests/weston-test.c
+++ b/tests/weston-test.c
@@ -243,6 +243,18 @@ enable_test_mode(struct wl_client *client, struct wl_resource *resource)
 	weston_compositor_test_mode_enable(test->compositor);
 }
 
+static void
+set_time(struct wl_client *client, struct wl_resource *resource,
+	const char *sec, const char *nsec)
+{
+	struct weston_test *test = wl_resource_get_user_data(resource);
+	struct timespec ts;
+
+	ts.tv_sec = atoll(sec);
+	ts.tv_nsec = atoll(nsec);
+	weston_compositor_presentation_clock_settime(test->compositor, &ts);
+}
+
 static const struct wl_test_interface test_implementation = {
 	move_surface,
 	move_pointer,
@@ -251,6 +263,7 @@ static const struct wl_test_interface test_implementation = {
 	send_key,
 	get_n_buffers,
 	enable_test_mode,
+	set_time,
 };
 
 static void
-- 
2.1.3