44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/*
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* Copyright(c) 2020 ZettaScale Technology and others
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*
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* This program and the accompanying materials are made available under the
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* terms of the Eclipse Public License v. 2.0 which is available at
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* http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License
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* v. 1.0 which is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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*/
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#ifndef DDSI_ACKNACK_H
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#define DDSI_ACKNACK_H
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#include <stddef.h>
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#include <stdbool.h>
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#include "dds/ddsrt/time.h"
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#include "dds/ddsi/q_xevent.h"
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#include "dds/ddsi/ddsi_entity.h"
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#include "dds/ddsi/q_protocol.h"
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#if defined (__cplusplus)
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extern "C" {
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#endif
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enum add_AckNack_result {
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AANR_SUPPRESSED_ACK, //!< sending nothing: too short a time since the last ACK
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AANR_ACK, //!< sending an ACK and there's nothing to NACK
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AANR_SUPPRESSED_NACK, //!< sending an ACK even though there are things to NACK
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AANR_NACK, //!< sending a NACK, possibly also a NACKFRAG
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AANR_NACKFRAG_ONLY //!< sending only a NACKFRAG
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};
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void sched_acknack_if_needed (struct xevent *ev, struct ddsi_proxy_writer *pwr, struct ddsi_pwr_rd_match *rwn, ddsrt_mtime_t tnow, bool avoid_suppressed_nack);
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struct nn_xmsg *make_and_resched_acknack (struct xevent *ev, struct ddsi_proxy_writer *pwr, struct ddsi_pwr_rd_match *rwn, ddsrt_mtime_t tnow, bool avoid_suppressed_nack);
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#if defined (__cplusplus)
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}
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#endif
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#endif /* DDSI_ACKNACK_H */
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