commit 8063bfa16f20557fb2e88305302fed122948c466
author QUICHE team <quiche-dev@google.com> Fri Jan 22 13:42:32 2021 -0800
committer Copybara-Service <copybara-worker@google.com> Fri Jan 22 13:43:19 2021 -0800
tree 7d11c756f70e0f8848b1c50df4d8180f56c503ef
parent f33be6192a034f605c7d0292502106998c3b533a

Fix the following error when building iOS:

//google3/third_party/quic/core/quic_stream_id_manager.cc:103:43: Division by zero is undefined

PiperOrigin-RevId: 353310551
Change-Id: Idadab32fcd7f05860ba36d5f4a87add28c45f7b3

quic/core/quic_stream_id_manager.cc

diff --git a/quic/core/quic_stream_id_manager.cc b/quic/core/quic_stream_id_manager.cc
index 4e63df7..a6e3518 100644
--- a/quic/core/quic_stream_id_manager.cc
+++ b/quic/core/quic_stream_id_manager.cc
@@ -99,11 +99,14 @@
 }
 
 void QuicStreamIdManager::MaybeSendMaxStreamsFrame() {
-  if ((incoming_advertised_max_streams_ - incoming_stream_count_) >
-      (incoming_initial_max_open_streams_ /
-       GetQuicFlag(FLAGS_quic_max_streams_window_divisor))) {
-    // window too large, no advertisement
-    return;
+  int divisor = GetQuicFlag(FLAGS_quic_max_streams_window_divisor);
+
+  if (divisor > 0) {
+    if ((incoming_advertised_max_streams_ - incoming_stream_count_) >
+        (incoming_initial_max_open_streams_ / divisor)) {
+      // window too large, no advertisement
+      return;
+    }
   }
   SendMaxStreamsFrame();
 }