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Run expiration when rollback lifetime is changed. DO NOT MERGE am: 9f8407b0aa

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Change-Id: I16987d7e00c3fbab2ea9d8c25eafc826c18c4afa
This commit is contained in:
JW Wang
2020-04-01 02:56:01 +00:00
committed by Automerger Merge Worker
parent 36cd122117 9f8407b0aa
commit 8121699da3
2 changed files with 55 additions and 12 deletions
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20
services/core/java/com/android/server/rollback/RollbackManagerServiceImpl.java
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@@ -137,6 +137,7 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
private final Installer mInstaller;
private final RollbackPackageHealthObserver mPackageHealthObserver;
private final AppDataRollbackHelper mAppDataRollbackHelper;
private final Runnable mRunExpiration = this::runExpiration;
// The # of milli-seconds to sleep for each received ACTION_PACKAGE_ENABLE_ROLLBACK.
// Used by #blockRollbackManager to test timeout in enabling rollbacks.
@@ -516,6 +517,7 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
mRollbackLifetimeDurationInMillis = DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS;
}
Slog.d(TAG, "mRollbackLifetimeDurationInMillis=" + mRollbackLifetimeDurationInMillis);
runExpiration();
}
@AnyThread
@@ -644,6 +646,8 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
// Schedules future expiration as appropriate.
@WorkerThread
private void runExpiration() {
getHandler().removeCallbacks(mRunExpiration);
Instant now = Instant.now();
Instant oldest = null;
synchronized (mLock) {
@@ -667,20 +671,12 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
}
if (oldest != null) {
scheduleExpiration(now.until(oldest.plusMillis(mRollbackLifetimeDurationInMillis),
ChronoUnit.MILLIS));
long delay = now.until(
oldest.plusMillis(mRollbackLifetimeDurationInMillis), ChronoUnit.MILLIS);
getHandler().postDelayed(mRunExpiration, delay);
}
}
/**
* Schedules an expiration check to be run after the given duration in
* milliseconds has gone by.
*/
@AnyThread
private void scheduleExpiration(long duration) {
getHandler().postDelayed(() -> runExpiration(), duration);
}
@AnyThread
private Handler getHandler() {
return mHandlerThread.getThreadHandler();
@@ -1179,7 +1175,7 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
// prepare to rollback if packages crashes too frequently.
mPackageHealthObserver.startObservingHealth(rollback.getPackageNames(),
mRollbackLifetimeDurationInMillis);
scheduleExpiration(mRollbackLifetimeDurationInMillis);
runExpiration();
}
/*

47
tests/RollbackTest/RollbackTest/src/com/android/tests/rollback/RollbackTest.java
View File

@@ -434,6 +434,53 @@ public class RollbackTest {
}
}
/**
* Test that available rollbacks should expire correctly when the property
* {@link RollbackManager#PROPERTY_ROLLBACK_LIFETIME_MILLIS} is changed
*/
@Test
public void testRollbackExpiresWhenLifetimeChanges() throws Exception {
long defaultExpirationTime = TimeUnit.HOURS.toMillis(48);
RollbackManager rm = RollbackUtils.getRollbackManager();
try {
InstallUtils.adoptShellPermissionIdentity(
Manifest.permission.INSTALL_PACKAGES,
Manifest.permission.DELETE_PACKAGES,
Manifest.permission.TEST_MANAGE_ROLLBACKS,
Manifest.permission.WRITE_DEVICE_CONFIG);
Uninstall.packages(TestApp.A);
assertThat(InstallUtils.getInstalledVersion(TestApp.A)).isEqualTo(-1);
Install.single(TestApp.A1).commit();
assertThat(InstallUtils.getInstalledVersion(TestApp.A)).isEqualTo(1);
Install.single(TestApp.A2).setEnableRollback().commit();
assertThat(InstallUtils.getInstalledVersion(TestApp.A)).isEqualTo(2);
RollbackInfo rollback = waitForAvailableRollback(TestApp.A);
assertThat(rollback).packagesContainsExactly(Rollback.from(TestApp.A2).to(TestApp.A1));
// Change the lifetime to 0 which should expire rollbacks immediately
DeviceConfig.setProperty(DeviceConfig.NAMESPACE_ROLLBACK_BOOT,
RollbackManager.PROPERTY_ROLLBACK_LIFETIME_MILLIS,
Long.toString(0), false /* makeDefault*/);
// Keep polling until device config changes has happened (which might take more than
// 5 sec depending how busy system_server is) and rollbacks have expired
for (int i = 0; i < 30; ++i) {
if (hasRollbackInclude(rm.getAvailableRollbacks(), TestApp.A)) {
Thread.sleep(1000);
}
}
rollback = getUniqueRollbackInfoForPackage(rm.getAvailableRollbacks(), TestApp.A);
assertThat(rollback).isNull();
} finally {
DeviceConfig.setProperty(DeviceConfig.NAMESPACE_ROLLBACK_BOOT,
RollbackManager.PROPERTY_ROLLBACK_LIFETIME_MILLIS,
Long.toString(defaultExpirationTime), false /* makeDefault*/);
InstallUtils.dropShellPermissionIdentity();
}
}
/**
* Test that changing time on device does not affect the duration of time that we keep
* rollback available