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Michael Roth13a286d2011-07-19 15:41:53 -05001/*
2 * QEMU Guest Agent command state interfaces
3 *
4 * Copyright IBM Corp. 2011
5 *
6 * Authors:
7 * Michael Roth <mdroth@linux.vnet.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
11 */
Peter Maydell4459bf32016-01-29 17:49:58 +000012#include "qemu/osdep.h"
Michael S. Tsirkindc032722018-05-03 22:50:57 +030013#include "guest-agent-core.h"
Michael Roth13a286d2011-07-19 15:41:53 -050014
15struct GACommandState {
16 GSList *groups;
17};
18
19typedef struct GACommandGroup {
20 void (*init)(void);
21 void (*cleanup)(void);
22} GACommandGroup;
23
24/* handle init/cleanup for stateful guest commands */
25
26void ga_command_state_add(GACommandState *cs,
27 void (*init)(void),
28 void (*cleanup)(void))
29{
Markus Armbrusterf3a06402015-09-14 13:50:44 +020030 GACommandGroup *cg = g_new0(GACommandGroup, 1);
Michael Roth13a286d2011-07-19 15:41:53 -050031 cg->init = init;
32 cg->cleanup = cleanup;
33 cs->groups = g_slist_append(cs->groups, cg);
34}
35
36static void ga_command_group_init(gpointer opaque, gpointer unused)
37{
38 GACommandGroup *cg = opaque;
39
40 g_assert(cg);
41 if (cg->init) {
42 cg->init();
43 }
44}
45
46void ga_command_state_init_all(GACommandState *cs)
47{
48 g_assert(cs);
49 g_slist_foreach(cs->groups, ga_command_group_init, NULL);
50}
51
52static void ga_command_group_cleanup(gpointer opaque, gpointer unused)
53{
54 GACommandGroup *cg = opaque;
55
56 g_assert(cg);
57 if (cg->cleanup) {
58 cg->cleanup();
59 }
60}
61
62void ga_command_state_cleanup_all(GACommandState *cs)
63{
64 g_assert(cs);
65 g_slist_foreach(cs->groups, ga_command_group_cleanup, NULL);
66}
67
68GACommandState *ga_command_state_new(void)
69{
Markus Armbrusterf3a06402015-09-14 13:50:44 +020070 GACommandState *cs = g_new0(GACommandState, 1);
Michael Roth13a286d2011-07-19 15:41:53 -050071 cs->groups = NULL;
72 return cs;
73}
Marc-André Lureau3e3e3022016-07-15 17:52:52 +020074
75void ga_command_state_free(GACommandState *cs)
76{
77 g_slist_free_full(cs->groups, g_free);
78 g_free(cs);
79}