692 void Tcp::ProcessSignals(Endpoint             &aEndpoint,  in ProcessSignals()  argument
697     VerifyOrExit(IsInitialized(aEndpoint) && !aEndpoint.IsClosed());  in ProcessSignals()
698     if (aSignals.conn_established && aEndpoint.mEstablishedCallback != nullptr)  in ProcessSignals()
700         aEndpoint.mEstablishedCallback(&aEndpoint);  in ProcessSignals()
703     VerifyOrExit(IsInitialized(aEndpoint) && !aEndpoint.IsClosed());  in ProcessSignals()
704     if (aEndpoint.mSendDoneCallback != nullptr)  in ProcessSignals()
714             VerifyOrExit(i == 0 || (IsInitialized(aEndpoint) && !aEndpoint.IsClosed()));  in ProcessSignals()
717             aEndpoint.mSendDoneCallback(&aEndpoint, curr);  in ProcessSignals()
722     VerifyOrExit(IsInitialized(aEndpoint) && !aEndpoint.IsClosed());  in ProcessSignals()
723     if (aEndpoint.mForwardProgressCallback != nullptr)  in ProcessSignals()
725         size_t backlogBytes = aEndpoint.GetBacklogBytes();  in ProcessSignals()
729 …      aEndpoint.mForwardProgressCallback(&aEndpoint, aEndpoint.GetSendBufferBytes(), backlogBytes);  in ProcessSignals()
730             aEndpoint.mPendingCallbacks &= ~kForwardProgressCallbackFlag;  in ProcessSignals()
734     VerifyOrExit(IsInitialized(aEndpoint) && !aEndpoint.IsClosed());  in ProcessSignals()
735 …if ((aSignals.recvbuf_added || aSignals.rcvd_fin) && aEndpoint.mReceiveAvailableCallback != nullpt…  in ProcessSignals()
737 …      aEndpoint.mReceiveAvailableCallback(&aEndpoint, cbuf_used_space(&aEndpoint.GetTcb().recvbuf),  in ProcessSignals()
738                                             aEndpoint.GetTcb().reass_fin_index != -1,  in ProcessSignals()
739                                             cbuf_free_space(&aEndpoint.GetTcb().recvbuf));  in ProcessSignals()
742     VerifyOrExit(IsInitialized(aEndpoint) && !aEndpoint.IsClosed());  in ProcessSignals()
743     if (aEndpoint.GetTcb().t_state == TCP6S_TIME_WAIT && aEndpoint.mDisconnectedCallback != nullptr)  in ProcessSignals()
745         aEndpoint.mDisconnectedCallback(&aEndpoint, OT_TCP_DISCONNECTED_REASON_TIME_WAIT);  in ProcessSignals()