1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* Copyright (c) 2006-2007, XenSource Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef XEN_EVENT_H
#define XEN_EVENT_H
#include <xen/api/xen_common.h>
#include <xen/api/xen_event_decl.h>
#include <xen/api/xen_event_operation.h>
#include <xen/api/xen_string_set.h>
/*
* The event class.
*
* Asynchronous event registration and handling.
*/
typedef struct xen_event_record
{
int64_t id;
time_t timestamp;
char *class;
enum xen_event_operation operation;
char *ref;
char *obj_uuid;
} xen_event_record;
/**
* Allocate a xen_event_record.
*/
extern xen_event_record *
xen_event_record_alloc(void);
/**
* Free the given xen_event_record, and all referenced values. The
* given record must have been allocated by this library.
*/
extern void
xen_event_record_free(xen_event_record *record);
typedef struct xen_event_record_set
{
size_t size;
xen_event_record *contents[];
} xen_event_record_set;
/**
* Allocate a xen_event_record_set of the given size.
*/
extern xen_event_record_set *
xen_event_record_set_alloc(size_t size);
/**
* Free the given xen_event_record_set, and all referenced values. The
* given set must have been allocated by this library.
*/
extern void
xen_event_record_set_free(xen_event_record_set *set);
/**
* Registers this session with the event system. Specifying the empty
* list will register for all classes.
*/
extern bool
xen_event_register(xen_session *session, struct xen_string_set *classes);
/**
* Unregisters this session with the event system.
*/
extern bool
xen_event_unregister(xen_session *session, struct xen_string_set *classes);
/**
* Blocking call which returns a (possibly empty) batch of events.
*/
extern bool
xen_event_next(xen_session *session, struct xen_event_record_set **result);
#endif
|
