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[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 cmd->name = name;
24 cmd->fn = fn;
25 cmd->enabled = true;
26 cmd->options = options;
27 QTAILQ_INSERT_TAIL(cmds, cmd, node);
28 }
29
30 const QmpCommand *qmp_find_command(const QmpCommandList *cmds, const char *name)
31 {
32 QmpCommand *cmd;
33
34 QTAILQ_FOREACH(cmd, cmds, node) {
35 if (strcmp(cmd->name, name) == 0) {
36 return cmd;
37 }
38 }
39 return NULL;
40 }
41
42 static void qmp_toggle_command(QmpCommandList *cmds, const char *name,
43 bool enabled)
44 {
45 QmpCommand *cmd;
46
47 QTAILQ_FOREACH(cmd, cmds, node) {
48 if (strcmp(cmd->name, name) == 0) {
49 cmd->enabled = enabled;
50 return;
51 }
52 }
53 }
54
55 void qmp_disable_command(QmpCommandList *cmds, const char *name)
56 {
57 qmp_toggle_command(cmds, name, false);
58 }
59
60 void qmp_enable_command(QmpCommandList *cmds, const char *name)
61 {
62 qmp_toggle_command(cmds, name, true);
63 }
64
65 bool qmp_command_is_enabled(const QmpCommand *cmd)
66 {
67 return cmd->enabled;
68 }
69
70 const char *qmp_command_name(const QmpCommand *cmd)
71 {
72 return cmd->name;
73 }
74
75 bool qmp_has_success_response(const QmpCommand *cmd)
76 {
77 return !(cmd->options & QCO_NO_SUCCESS_RESP);
78 }
79
80 void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
81 void *opaque)
82 {
83 const QmpCommand *cmd;
84
85 QTAILQ_FOREACH(cmd, cmds, node) {
86 fn(cmd, opaque);
87 }
88 }