Snap for 11257657 from 79c8091d4cc50c9bf280095a943024c39d6e56ae to 24Q2-release (802e9bae) · Commits · e / os / android_packages_apps_ThemePicker

src/com/android/customization/module/logging/AppSessionId.kt

+16 −4

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@
		*/
		package com.android.customization.module.logging

		import android.util.Log
		import com.android.internal.logging.InstanceId
		import com.android.internal.logging.InstanceIdSequence
		import javax.inject.Inject
		@@ -23,9 +24,9 @@ import javax.inject.Singleton
		@Singleton
		class AppSessionId @Inject constructor() {

		private val idSequence = InstanceIdSequence(INSTANCE_ID_MAX)
		private var idSequence: InstanceIdSequence? = null

		private var sessionId: InstanceId = newInstanceId()
		private var sessionId: InstanceId? = null

		fun createNewId(): AppSessionId {
		sessionId = newInstanceId()
		@@ -33,12 +34,23 @@ class AppSessionId @Inject constructor() {
		}

		fun getId(): Int {
		return sessionId.hashCode()
		val id =
		sessionId
		?: newInstanceId().also {
		Log.w(
		TAG,
		"Session ID should not be null. We should always call createNewId() before calling getId()."
		)
		sessionId = it
		}
		return id.hashCode()
		}

		private fun newInstanceId(): InstanceId = idSequence.newInstanceId()
		private fun newInstanceId(): InstanceId =
		(idSequence ?: InstanceIdSequence(INSTANCE_ID_MAX).also { idSequence = it }).newInstanceId()

		companion object {
		private const val TAG = "AppSessionId"
		// At most 20 bits: ~1m possibilities, ~0.5% probability of collision in 100 values
		private const val INSTANCE_ID_MAX = 1 shl 20
		}