commit 89ee618280ea05e193afab38f9d2bf99b8274a92
author Shreyas Basarge <snb@google.com> Thu Dec 17 15:16:36 2015 +0000
committer Shreyas Basarge <snb@google.com> Mon Jan 11 20:58:29 2016 +0000
tree 75e0a9a4110e75403dda0dbd10a4df33121d7bca
parent db02dc190feb11731af4af137f131c1377d3abbd

Flex time for periodic jobs in JobScheduler

A periodic job will start only within time
satisfying period - flex < time % period < period.

Bug: 26254850
Change-Id: I97a840446e5592e5151d784800855d909f1790b8

services/core/java/com/android/server/job/JobSchedulerService.java

diff --git a/services/core/java/com/android/server/job/JobSchedulerService.java b/services/core/java/com/android/server/job/JobSchedulerService.java
index 4eabe36..3530d80 100644
--- a/services/core/java/com/android/server/job/JobSchedulerService.java
+++ b/services/core/java/com/android/server/job/JobSchedulerService.java
@@ -613,9 +613,10 @@
         if (periodicToReschedule.hasDeadlineConstraint()) {
             runEarly = Math.max(periodicToReschedule.getLatestRunTimeElapsed() - elapsedNow, 0L);
         }
-        long newEarliestRunTimeElapsed = elapsedNow + runEarly;
+        long flex = periodicToReschedule.getJob().getFlexMillis();
         long period = periodicToReschedule.getJob().getIntervalMillis();
-        long newLatestRuntimeElapsed = newEarliestRunTimeElapsed + period;
+        long newLatestRuntimeElapsed = elapsedNow + runEarly + period;
+        long newEarliestRunTimeElapsed = newLatestRuntimeElapsed - flex;
 
         if (DEBUG) {
             Slog.v(TAG, "Rescheduling executed periodic. New execution window [" +