A virtual base opaque structure used to hold state associated with the packet (e.g., an MSHR), specific to a SimObject that sees the packet. More...

#include <packet.hh>

Inheritance diagram for gem5::Packet::SenderState:

Public Member Functions
	SenderState ()

virtual	~SenderState ()

Public Attributes
SenderState *	predecessor

Detailed Description

A virtual base opaque structure used to hold state associated with the packet (e.g., an MSHR), specific to a SimObject that sees the packet.

A pointer to this state is returned in the packet's response so that the SimObject in question can quickly look up the state needed to process it. A specific subclass would be derived from this to carry state specific to a particular sending device.

As multiple SimObjects may add their SenderState throughout the memory system, the SenderStates create a stack, where a SimObject can add a new Senderstate, as long as the predecessing SenderState is restored when the response comes back. For this reason, the predecessor should always be populated with the current SenderState of a packet before modifying the senderState field in the request packet.

Definition at line 468 of file packet.hh.

Constructor & Destructor Documentation

◆ SenderState()

gem5::Packet::SenderState::SenderState ( )

inline

Definition at line 471 of file packet.hh.

◆ ~SenderState()

virtual gem5::Packet::SenderState::~SenderState ( )

inlinevirtual

Reimplemented in gem5::ProtocolTester::SenderState.

Definition at line 472 of file packet.hh.

Member Data Documentation

◆ predecessor

SenderState* gem5::Packet::SenderState::predecessor

Definition at line 470 of file packet.hh.

Referenced by gem5::LdsState::countBankConflicts(), gem5::Packet::findNextSenderState(), gem5::Packet::popSenderState(), gem5::Packet::pushSenderState(), gem5::AddrMapper::recvTimingResp(), gem5::CommMonitor::recvTimingResp(), and gem5::MemCheckerMonitor::recvTimingResp().

The documentation for this struct was generated from the following file:

mem/packet.hh