Move QuicClientSessionCache in chromium to shared code by making following changes:
1) Rename FlushInvalidEntries() and Flush() to RemoveExpiredEntries() and Clear(), respectively.
2) Remove clock_ and SetClockForTesting(), instead, pass in QuicWallTime (use ToUNIXSeconds to get seconds from UNIX epoch because SSL_SESSION_get_time returns seconds from UNIX epoch) to Lookup and RemoveExpiredEntries.
3) Remove memory_pressure_listener_ and OnMemoryPressure(). In chromium, memory_pressure_listener_ and OnMemoryPressure() will be moved to QuicStreamFactory::QuicCryptoClientConfigOwner.
4) Replace base::LRUCache with QuicLRUCache (and add hasher for QuicServerId).

Also let clients in e2e tests and QuicClient use QuicClientSessionCache instead of SimpleSessionCache.

PiperOrigin-RevId: 411153489
12 files changed
tree: 119473d216914b8010f292b2e93e6da87c276793
  1. common/
  2. epoll_server/
  3. http2/
  4. quic/
  5. spdy/


QUICHE stands for QUIC, Http/2, Etc. It is Google‘s production-ready implementation of QUIC, HTTP/2, HTTP/3, and related protocols and tools. It powers Google’s servers, Chromium, Envoy, and other projects. It is actively developed and maintained.

There are two public QUICHE repositories. Either one may be used by embedders, as they are automatically kept in sync:

To embed QUICHE in your project, platform APIs need to be implemented and build files need to be created. Note that it is on the QUICHE team's roadmap to include default implementation for all platform APIs and to open-source build files. In the meanwhile, take a look at open source embedders like Chromium and Envoy to get started:

To contribute to QUICHE, follow instructions at

QUICHE is only supported on little-endian platforms.