Line data    Source code

       1             : #pragma once
       2             : 
       3             : #include "envoy/common/pure.h"
       4             : 
       5             : // Stream Reset is refactored from the codec to avoid cyclical dependencies with
       6             : // the BufferMemoryAccount interface.
       7             : namespace Envoy {
       8             : namespace Http {
       9             : 
      10             : /**
      11             :  * Stream reset reasons.
      12             :  */
      13             : enum class StreamResetReason {
      14             :   // If a local codec level reset was sent on the stream.
      15             :   LocalReset,
      16             :   // If a local codec level refused stream reset was sent on the stream (allowing for retry).
      17             :   LocalRefusedStreamReset,
      18             :   // If a remote codec level reset was received on the stream.
      19             :   RemoteReset,
      20             :   // If a remote codec level refused stream reset was received on the stream (allowing for retry).
      21             :   RemoteRefusedStreamReset,
      22             :   // If the stream was locally reset by a connection pool due to an initial local connection
      23             :   // failure.
      24             :   LocalConnectionFailure,
      25             :   // If the stream was locally reset by a connection pool due to an initial remote connection
      26             :   // failure.
      27             :   RemoteConnectionFailure,
      28             :   // If the stream was reset due to timing out while creating a new connection.
      29             :   ConnectionTimeout,
      30             :   // If the stream was locally reset due to connection termination.
      31             :   ConnectionTermination,
      32             :   // The stream was reset because of a resource overflow.
      33             :   Overflow,
      34             :   // Either there was an early TCP error for a CONNECT request or the peer reset with CONNECT_ERROR
      35             :   ConnectError,
      36             :   // Received payload did not conform to HTTP protocol.
      37             :   ProtocolError,
      38             :   // If the stream was locally reset by the Overload Manager.
      39             :   OverloadManager
      40             : };
      41             : 
      42             : /**
      43             :  * Handler to reset an underlying HTTP stream.
      44             :  */
      45             : class StreamResetHandler {
      46             : public:
      47        4151 :   virtual ~StreamResetHandler() = default;
      48             :   /**
      49             :    * Reset the stream. No events will fire beyond this point.
      50             :    * @param reason supplies the reset reason.
      51             :    */
      52             :   virtual void resetStream(StreamResetReason reason) PURE;
      53             : };
      54             : 
      55             : } // namespace Http
      56             : } // namespace Envoy