commit 72670c57aa1a158ab05055d65a618307d57bf154
author Alec Mouri <alecmouri@google.com> Sat Aug 31 01:54:33 2019 -0700
committer Alec Mouri <alecmouri@google.com> Fri Sep 06 11:43:42 2019 -0700
tree 2a4e3920ca714494356be0451188641cc0c9d54f
parent 04fdb60d01038d4d1e82b4c71f9bd3e9c74cb031

[ANativeWindow] Increase precision for duration queries.

Use perform() instead in query() to retrieve dequeue/queue durations for
nanosecond resolution.

Bug: 137012798
Test: atest
Change-Id: I894a8784f3321d4ab6f538d7e7fc1457de26f289

libs/nativewindow/ANativeWindow.cpp

diff --git a/libs/nativewindow/ANativeWindow.cpp b/libs/nativewindow/ANativeWindow.cpp
index fecfa19..0ba01f4 100644
--- a/libs/nativewindow/ANativeWindow.cpp
+++ b/libs/nativewindow/ANativeWindow.cpp
@@ -33,6 +33,12 @@
     return res < 0 ? res : value;
 }
 
+static int64_t query64(ANativeWindow* window, int what) {
+    int64_t value;
+    int res = window->perform(window, what, &value);
+    return res < 0 ? res : value;
+}
+
 static bool isDataSpaceValid(ANativeWindow* window, int32_t dataSpace) {
     bool supported = false;
     switch (dataSpace) {
@@ -271,18 +277,16 @@
  * apex-stable
  **************************************************************************************************/
 
-int ANativeWindow_getLastDequeueDuration(ANativeWindow* window) {
-    return query(window, NATIVE_WINDOW_LAST_DEQUEUE_DURATION);
+int64_t ANativeWindow_getLastDequeueDuration(ANativeWindow* window) {
+    return query64(window, NATIVE_WINDOW_GET_LAST_DEQUEUE_DURATION);
 }
 
-int ANativeWindow_getLastQueueDuration(ANativeWindow* window) {
-    return query(window, NATIVE_WINDOW_LAST_QUEUE_DURATION);
+int64_t ANativeWindow_getLastQueueDuration(ANativeWindow* window) {
+    return query64(window, NATIVE_WINDOW_GET_LAST_QUEUE_DURATION);
 }
 
 int64_t ANativeWindow_getLastDequeueStartTime(ANativeWindow* window) {
-    int64_t time;
-    int success = window->perform(window, NATIVE_WINDOW_GET_LAST_DEQUEUE_START, &time);
-    return success < 0 ? success : time;
+    return query64(window, NATIVE_WINDOW_GET_LAST_DEQUEUE_START);
 }
 
 int ANativeWindow_setDequeueTimeout(ANativeWindow* window, int64_t timeout) {