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Build a simple ANR detector.

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This commit is contained in:
Greyson Parrelli
2023-10-31 13:53:32 -07:00
parent 776a4c5dce
commit 5a005fb809
7 changed files with 308 additions and 2 deletions
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16
app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
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@@ -30,6 +30,7 @@ import org.conscrypt.Conscrypt;
import org.greenrobot.eventbus.EventBus;
import org.signal.aesgcmprovider.AesGcmProvider;
import org.signal.core.util.MemoryTracker;
import org.signal.core.util.concurrent.AnrDetector;
import org.signal.core.util.concurrent.SignalExecutors;
import org.signal.core.util.logging.AndroidLogger;
import org.signal.core.util.logging.Log;
@@ -109,6 +110,7 @@ import io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException;
import io.reactivex.rxjava3.exceptions.UndeliverableException;
import io.reactivex.rxjava3.plugins.RxJavaPlugins;
import io.reactivex.rxjava3.schedulers.Schedulers;
import kotlin.Unit;
import rxdogtag2.RxDogTag;
/**
@@ -151,6 +153,7 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
initializeLogging();
Log.i(TAG, "onCreate()");
})
.addBlocking("anr-detector", this::startAnrDetector)
.addBlocking("security-provider", this::initializeSecurityProvider)
.addBlocking("crash-handling", this::initializeCrashHandling)
.addBlocking("rx-init", this::initializeRx)
@@ -227,6 +230,7 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
SubscriptionKeepAliveJob.enqueueAndTrackTimeIfNecessary();
ExternalLaunchDonationJob.enqueueIfNecessary();
FcmFetchManager.onForeground(this);
startAnrDetector();
SignalExecutors.BOUNDED.execute(() -> {
FeatureFlags.refreshIfNecessary();
@@ -260,6 +264,7 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
ApplicationDependencies.getShakeToReport().disable();
ApplicationDependencies.getDeadlockDetector().stop();
MemoryTracker.stop();
AnrDetector.stop();
}
public void checkBuildExpiration() {
@@ -269,6 +274,17 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
}
}
/**
* Note: this is purposefully "started" twice -- once during application create, and once during foreground.
* This is so we can capture ANR's that happen on boot before the foreground event.
*/
private void startAnrDetector() {
AnrDetector.start(TimeUnit.SECONDS.toMillis(5), FeatureFlags::internalUser, (dumps) -> {
LogDatabase.getInstance(this).anrs().save(System.currentTimeMillis(), dumps);
return Unit.INSTANCE;
});
}
private void initializeSecurityProvider() {
int aesPosition = Security.insertProviderAt(new AesGcmProvider(), 1);
Log.i(TAG, "Installed AesGcmProvider: " + aesPosition);