Line data    Source code

       1             : #pragma once
       2             : 
       3             : #include "envoy/network/address.h"
       4             : 
       5             : #include "absl/types/optional.h"
       6             : 
       7             : namespace Envoy {
       8             : namespace Udp {
       9             : /**
      10             :  * Hash policy for UDP transport layer protocol.
      11             :  */
      12             : class HashPolicy {
      13             : public:
      14           0 :   virtual ~HashPolicy() = default;
      15             : 
      16             :   /**
      17             :    * @param downstream_address is the address of the peer client.
      18             :    * @return absl::optional<uint64_t> an optional hash value to route on. A hash value might not be
      19             :    * returned if for example the downstream address has a unix domain socket type.
      20             :    */
      21             :   virtual absl::optional<uint64_t>
      22             :   generateHash(const Network::Address::Instance& downstream_address) const PURE;
      23             : };
      24             : } // namespace Udp
      25             : } // namespace Envoy