77 lines
3.3 KiB
C
77 lines
3.3 KiB
C
/*
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* Copyright(c) 2006 to 2022 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_TOPIC_H
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#define DDSI_TOPIC_H
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#include "dds/export.h"
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#include "dds/features.h"
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#include "dds/ddsi/ddsi_domaingv.h"
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#include "dds/ddsi/ddsi_entity.h"
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#if defined (__cplusplus)
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extern "C" {
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#endif
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DDS_EXPORT int ddsi_is_builtin_topic (ddsi_entityid_t id, nn_vendorid_t vendorid);
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DDS_EXPORT int ddsi_is_topic_entityid (ddsi_entityid_t id);
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#ifdef DDS_HAS_TOPIC_DISCOVERY
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struct ddsi_type_pair;
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struct dds_qos;
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struct ddsi_topic_definition {
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unsigned char key[16]; /* key for this topic definition (MD5 hash of the type_id and qos) */
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struct ddsi_type_pair *type_pair; /* has a ddsi_type object for the minimal and complete type, which contains the XTypes type identifiers */
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struct dds_qos *xqos; /* contains also the topic name and type name */
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uint32_t refc;
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struct ddsi_domaingv *gv;
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};
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struct ddsi_topic {
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struct ddsi_entity_common e;
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struct ddsi_topic_definition *definition; /* ref to (shared) topic definition, protected by e.qos_lock */
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struct ddsi_participant *pp; /* backref to the participant */
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};
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struct ddsi_proxy_topic
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{
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ddsi_entityid_t entityid;
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struct ddsi_topic_definition *definition; /* ref to (shared) topic definition */
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ddsrt_wctime_t tupdate; /* timestamp of last update */
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seqno_t seq; /* sequence number of most recent SEDP message */
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ddsrt_avl_node_t avlnode; /* entry in proxypp->topics */
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unsigned deleted: 1;
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};
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int ddsi_topic_definition_equal (const struct ddsi_topic_definition *tpd_a, const struct ddsi_topic_definition *tpd_b);
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uint32_t ddsi_topic_definition_hash (const struct ddsi_topic_definition *tpd);
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dds_return_t ddsi_new_proxy_topic (struct ddsi_proxy_participant *proxypp, seqno_t seq, const ddsi_guid_t *guid, const ddsi_typeid_t *type_id_minimal, const ddsi_typeid_t *type_id, struct dds_qos *qos, ddsrt_wctime_t timestamp);
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struct ddsi_proxy_topic *ddsi_lookup_proxy_topic (struct ddsi_proxy_participant *proxypp, const ddsi_guid_t *guid);
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void ddsi_update_proxy_topic (struct ddsi_proxy_participant *proxypp, struct ddsi_proxy_topic *proxytp, seqno_t seq, struct dds_qos *xqos, ddsrt_wctime_t timestamp);
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int ddsi_delete_proxy_topic_locked (struct ddsi_proxy_participant *proxypp, struct ddsi_proxy_topic *proxytp, ddsrt_wctime_t timestamp);
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DDS_EXPORT dds_return_t ddsi_new_topic (struct ddsi_topic **tp_out, struct ddsi_guid *tpguid, struct ddsi_participant *pp, const char *topic_name, const struct ddsi_sertype *type, const struct dds_qos *xqos, bool is_builtin, bool *new_topic_def);
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DDS_EXPORT void ddsi_update_topic_qos (struct ddsi_topic *tp, const dds_qos_t *xqos);
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DDS_EXPORT dds_return_t ddsi_delete_topic (struct ddsi_domaingv *gv, const struct ddsi_guid *guid);
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DDS_EXPORT dds_return_t ddsi_lookup_topic_definition (struct ddsi_domaingv *gv, const char * topic_name, const ddsi_typeid_t *type_id, struct ddsi_topic_definition **tpd);
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#endif /* DDS_HAS_TOPIC_DISCOVERY */
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#if defined (__cplusplus)
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}
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#endif
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#endif /* DDSI_TOPIC_H */
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