commit b239f86b8ce421cdba5864e53247de4a875da5e4
author ianswett <ianswett@google.com> Fri Apr 05 09:15:06 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Fri Apr 05 11:32:48 2019 -0700
tree c6e72d8dec366b2b60142473a34fe32fa70bdbbd
parent 04a83598e30a6185766823036d0db802c7086a12

Add GetLargestGuaranteedMessagePayload to QuicSession/Connection/Generator/Creator to expose the largest message payload that's guaranteed to fit in any packet containing application data.

gfe-relnote: n/a (Only used in Quartc)
PiperOrigin-RevId: 242135946
Change-Id: I52cc763af88d22fc240210e00cf4d4062d0b9c59

quic/core/quic_packet_creator.h

diff --git a/quic/core/quic_packet_creator.h b/quic/core/quic_packet_creator.h
index 7c8f496..ea93552 100644
--- a/quic/core/quic_packet_creator.h
+++ b/quic/core/quic_packet_creator.h
@@ -255,7 +255,11 @@
   void SetRetryToken(QuicStringPiece retry_token);
 
   // Returns the largest payload that will fit into a single MESSAGE frame.
-  QuicPacketLength GetLargestMessagePayload() const;
+  QuicPacketLength GetCurrentLargestMessagePayload() const;
+  // Returns the largest payload that will fit into a single MESSAGE frame at
+  // any point during the connection.  This assumes the version and
+  // connection ID lengths do not change.
+  QuicPacketLength GetGuaranteedLargestMessagePayload() const;
 
   void set_debug_delegate(DebugDelegate* debug_delegate) {
     debug_delegate_ = debug_delegate;