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54
unitree_SDK/include/dds/ddsi/q_lease.h
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54
unitree_SDK/include/dds/ddsi/q_lease.h
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/*
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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 Q_LEASE_H
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#define Q_LEASE_H
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#include "dds/ddsrt/atomics.h"
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#include "dds/ddsrt/fibheap.h"
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#include "dds/ddsrt/time.h"
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#if defined (__cplusplus)
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extern "C" {
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#endif
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struct receiver_state;
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struct ddsi_participant;
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struct ddsi_entity_common;
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struct ddsi_domaingv; /* FIXME: make a special for the lease admin */
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struct lease {
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ddsrt_fibheap_node_t heapnode;
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ddsrt_fibheap_node_t pp_heapnode;
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ddsrt_etime_t tsched; /* access guarded by leaseheap_lock */
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ddsrt_atomic_uint64_t tend; /* really an ddsrt_etime_t */
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dds_duration_t tdur; /* constant (renew depends on it) */
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struct ddsi_entity_common *entity; /* constant */
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};
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int compare_lease_tsched (const void *va, const void *vb);
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int compare_lease_tdur (const void *va, const void *vb);
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void lease_management_init (struct ddsi_domaingv *gv);
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void lease_management_term (struct ddsi_domaingv *gv);
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struct lease *lease_new (ddsrt_etime_t texpire, int64_t tdur, struct ddsi_entity_common *e);
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struct lease *lease_clone (const struct lease *l);
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void lease_register (struct lease *l);
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void lease_unregister (struct lease *l);
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void lease_free (struct lease *l);
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DDS_EXPORT void lease_renew (struct lease *l, ddsrt_etime_t tnow);
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void lease_set_expiry (struct lease *l, ddsrt_etime_t when);
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int64_t check_and_handle_lease_expiration (struct ddsi_domaingv *gv, ddsrt_etime_t tnow);
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#if defined (__cplusplus)
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}
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#endif
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#endif /* Q_LEASE_H */
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