Add some timing logs for encryption

matrix-sdk-android/src/rustCrypto/java/org/matrix/android/sdk/internal/crypto/PrepareToEncryptUseCase.kt

@@ -39,6 +39,7 @@ import org.matrix.rustcomponents.sdk.crypto.RequestType
 import timber.log.Timber
 import java.util.concurrent.ConcurrentHashMap
 import javax.inject.Inject
+import kotlin.system.measureTimeMillis
 
 private val loggerTag = LoggerTag("PrepareToEncryptUseCase", LoggerTag.CRYPTO)
 
@@ -62,12 +63,16 @@ internal class PrepareToEncryptUseCase @Inject constructor(
             Timber.tag(loggerTag.value).d("prepareToEncrypt() roomId:$roomId Check room members up to date")
             // Ensure to load all room members
             if (ensureAllMembersAreLoaded) {
+                measureTimeMillis {
                     try {
                         loadRoomMembersTask.execute(LoadRoomMembersTask.Params(roomId))
                     } catch (failure: Throwable) {
                         Timber.tag(loggerTag.value).e("prepareToEncrypt() : Failed to load room members")
                         throw failure
                     }
+                }.also {
+                    Timber.tag(loggerTag.value).d("prepareToEncrypt() roomId:$roomId load room members took: $it ms")
+                }
             }
             val userIds = getRoomUserIds(roomId)
             val algorithm = getEncryptionAlgorithm(roomId)
@@ -85,7 +90,11 @@ internal class PrepareToEncryptUseCase @Inject constructor(
     }
 
     private suspend fun preshareRoomKey(roomId: String, roomMembers: List<String>, forceDistributeToUnverified: Boolean) {
+        measureTimeMillis {
             claimMissingKeys(roomMembers)
+        }.also {
+            Timber.tag(loggerTag.value).d("prepareToEncrypt() roomId:$roomId claimMissingKeys took: $it ms")
+        }
         val keyShareLock = roomKeyShareLocks.getOrPut(roomId) { Mutex() }
         var sharedKey = false
 
@@ -113,6 +122,7 @@ internal class PrepareToEncryptUseCase @Inject constructor(
                     HistoryVisibility.JOINED
                 }
         )
+        measureTimeMillis {
             keyShareLock.withLock {
                 coroutineScope {
                     olmMachine.shareRoomKey(roomId, roomMembers, settings).map {
@@ -133,6 +143,9 @@ internal class PrepareToEncryptUseCase @Inject constructor(
                     }.joinAll()
                 }
             }
+        }.also {
+            Timber.tag(loggerTag.value).d("prepareToEncrypt() roomId:$roomId shareRoomKeys took: $it ms")
+        }
 
         // If we sent out a room key over to-device messages it's likely that we created a new one
         // Try to back the key up