Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-09-25-v2' into staging
[qemu.git] / qapi / qmp-registry.c
1 /*
2 * Core Definitions for QAPI/QMP Dispatch
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 * Michael Roth <mdroth@us.ibm.com>
9 *
10 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
11 * See the COPYING.LIB file in the top-level directory.
12 *
13 */
14
15 #include "qemu/osdep.h"
16 #include "qapi/qmp/dispatch.h"
17
18 void qmp_register_command(QmpCommandList *cmds, const char *name,
19 QmpCommandFunc *fn, QmpCommandOptions options)
20 {
21 QmpCommand *cmd = g_malloc0(sizeof(*cmd));
22
23 /* QCO_COROUTINE and QCO_ALLOW_OOB are incompatible for now */
24 assert(!((options & QCO_COROUTINE) && (options & QCO_ALLOW_OOB)));
25
26 cmd->name = name;
27 cmd->fn = fn;
28 cmd->enabled = true;
29 cmd->options = options;
30 QTAILQ_INSERT_TAIL(cmds, cmd, node);
31 }
32
33 const QmpCommand *qmp_find_command(const QmpCommandList *cmds, const char *name)
34 {
35 QmpCommand *cmd;
36
37 QTAILQ_FOREACH(cmd, cmds, node) {
38 if (strcmp(cmd->name, name) == 0) {
39 return cmd;
40 }
41 }
42 return NULL;
43 }
44
45 static void qmp_toggle_command(QmpCommandList *cmds, const char *name,
46 bool enabled, const char *disable_reason)
47 {
48 QmpCommand *cmd;
49
50 QTAILQ_FOREACH(cmd, cmds, node) {
51 if (strcmp(cmd->name, name) == 0) {
52 cmd->enabled = enabled;
53 cmd->disable_reason = disable_reason;
54 return;
55 }
56 }
57 }
58
59 void qmp_disable_command(QmpCommandList *cmds, const char *name,
60 const char *disable_reason)
61 {
62 qmp_toggle_command(cmds, name, false, disable_reason);
63 }
64
65 void qmp_enable_command(QmpCommandList *cmds, const char *name)
66 {
67 qmp_toggle_command(cmds, name, true, NULL);
68 }
69
70 bool qmp_command_is_enabled(const QmpCommand *cmd)
71 {
72 return cmd->enabled;
73 }
74
75 const char *qmp_command_name(const QmpCommand *cmd)
76 {
77 return cmd->name;
78 }
79
80 bool qmp_has_success_response(const QmpCommand *cmd)
81 {
82 return !(cmd->options & QCO_NO_SUCCESS_RESP);
83 }
84
85 void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
86 void *opaque)
87 {
88 const QmpCommand *cmd;
89
90 QTAILQ_FOREACH(cmd, cmds, node) {
91 fn(cmd, opaque);
92 }
93 }