Add stopwatch for CallLog loading.

app/src/main/java/org/thoughtcrime/securesms/calls/log/CallLogPagedDataSource.kt

@@ -1,5 +1,7 @@
 package org.thoughtcrime.securesms.calls.log
 
+import org.signal.core.util.Stopwatch
+import org.signal.core.util.logging.Log
 import org.signal.paging.PagedDataSource
 
 class CallLogPagedDataSource(
@@ -8,6 +10,10 @@ class CallLogPagedDataSource(
   private val repository: CallRepository
 ) : PagedDataSource<CallLogRow.Id, CallLogRow> {
 
+  companion object {
+    private val TAG = Log.tag(CallLogPagedDataSource::class)
+  }
+
   private val hasFilter = filter == CallLogFilter.MISSED
   private val hasCallLinkRow = filter == CallLogFilter.ALL && query.isNullOrEmpty()
 
@@ -15,12 +21,21 @@ class CallLogPagedDataSource(
   private var callLinksCount = 0
 
   override fun size(): Int {
+    val stopwatch = Stopwatch("size")
+
     callEventsCount = repository.getCallsCount(query, filter)
+    stopwatch.split("calls")
+
     callLinksCount = repository.getCallLinksCount(query, filter)
+    stopwatch.split("call-links")
+    stopwatch.stop(TAG)
+
     return callEventsCount + callLinksCount + hasFilter.toInt() + hasCallLinkRow.toInt()
   }
 
   override fun load(start: Int, length: Int, totalSize: Int, cancellationSignal: PagedDataSource.CancellationSignal): MutableList<CallLogRow> {
+    val stopwatch = Stopwatch("load($start, $length)")
+
     val callLogRows = mutableListOf<CallLogRow>()
     if (length <= 0) {
       return callLogRows
@@ -35,6 +50,7 @@ class CallLogPagedDataSource(
       callLogRows.add(CallLogRow.CreateCallLink)
       remaining -= 1
     }
+    stopwatch.split("init")
 
     if (start < callEventStart && remaining > 0) {
       val callLinks = repository.getCallLinks(
@@ -48,6 +64,7 @@ class CallLogPagedDataSource(
 
       remaining -= callLinks.size
     }
+    stopwatch.split("call-links")
 
     if (start < clearFilterStart && remaining > 0) {
       val callEvents = repository.getCalls(
@@ -61,12 +78,16 @@ class CallLogPagedDataSource(
 
       remaining -= callEvents.size
     }
+    stopwatch.split("calls")
 
     if (hasFilter && start <= clearFilterStart && remaining > 0) {
       callLogRows.add(CallLogRow.ClearFilter)
     }
 
     repository.onCallTabPageLoaded(callLogRows)
+    stopwatch.split("callback")
+    stopwatch.stop(TAG)
+
     return callLogRows
   }