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Ewan Mellor
5a1f59a822
xm event-monitor, a new test program for the C bindings, and new bindings themselves. Signed-off-by: Ewan Mellor <ewan@xensource.com>
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/*
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* Copyright (c) 2006-2007, XenSource Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef XEN_EVENT_H
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#define XEN_EVENT_H
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#include "xen_common.h"
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#include "xen_event_decl.h"
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#include "xen_event_operation.h"
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#include "xen_string_set.h"
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/*
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* The event class.
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*
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* Asynchronous event registration and handling.
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*/
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typedef struct xen_event_record
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{
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int64_t id;
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time_t timestamp;
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char *class;
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enum xen_event_operation operation;
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char *ref;
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char *obj_uuid;
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} xen_event_record;
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/**
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* Allocate a xen_event_record.
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*/
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extern xen_event_record *
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xen_event_record_alloc(void);
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/**
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* Free the given xen_event_record, and all referenced values. The
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* given record must have been allocated by this library.
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*/
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extern void
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xen_event_record_free(xen_event_record *record);
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typedef struct xen_event_record_set
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{
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size_t size;
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xen_event_record *contents[];
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} xen_event_record_set;
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/**
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* Allocate a xen_event_record_set of the given size.
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*/
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extern xen_event_record_set *
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xen_event_record_set_alloc(size_t size);
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/**
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* Free the given xen_event_record_set, and all referenced values. The
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* given set must have been allocated by this library.
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*/
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extern void
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xen_event_record_set_free(xen_event_record_set *set);
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/**
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* Registers this session with the event system. Specifying the empty
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* list will register for all classes.
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*/
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extern bool
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xen_event_register(xen_session *session, struct xen_string_set *classes);
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/**
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* Unregisters this session with the event system.
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*/
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extern bool
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xen_event_unregister(xen_session *session, struct xen_string_set *classes);
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/**
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* Blocking call which returns a (possibly empty) batch of events.
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*/
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extern bool
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xen_event_next(xen_session *session, struct xen_event_record_set **result);
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#endif
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