virtio-scsi: work around bug in old BIOSes
[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 <glib.h>
16 #include <string.h>
17 #include "qapi/qmp/dispatch.h"
18
19 static QTAILQ_HEAD(QmpCommandList, QmpCommand) qmp_commands =
20 QTAILQ_HEAD_INITIALIZER(qmp_commands);
21
22 void qmp_register_command(const char *name, QmpCommandFunc *fn,
23 QmpCommandOptions options)
24 {
25 QmpCommand *cmd = g_malloc0(sizeof(*cmd));
26
27 cmd->name = name;
28 cmd->type = QCT_NORMAL;
29 cmd->fn = fn;
30 cmd->enabled = true;
31 cmd->options = options;
32 QTAILQ_INSERT_TAIL(&qmp_commands, cmd, node);
33 }
34
35 QmpCommand *qmp_find_command(const char *name)
36 {
37 QmpCommand *cmd;
38
39 QTAILQ_FOREACH(cmd, &qmp_commands, node) {
40 if (strcmp(cmd->name, name) == 0) {
41 return cmd;
42 }
43 }
44 return NULL;
45 }
46
47 static void qmp_toggle_command(const char *name, bool enabled)
48 {
49 QmpCommand *cmd;
50
51 QTAILQ_FOREACH(cmd, &qmp_commands, node) {
52 if (strcmp(cmd->name, name) == 0) {
53 cmd->enabled = enabled;
54 return;
55 }
56 }
57 }
58
59 void qmp_disable_command(const char *name)
60 {
61 qmp_toggle_command(name, false);
62 }
63
64 void qmp_enable_command(const char *name)
65 {
66 qmp_toggle_command(name, true);
67 }
68
69 bool qmp_command_is_enabled(const QmpCommand *cmd)
70 {
71 return cmd->enabled;
72 }
73
74 const char *qmp_command_name(const QmpCommand *cmd)
75 {
76 return cmd->name;
77 }
78
79 bool qmp_has_success_response(const QmpCommand *cmd)
80 {
81 return !(cmd->options & QCO_NO_SUCCESS_RESP);
82 }
83
84 void qmp_for_each_command(qmp_cmd_callback_fn fn, void *opaque)
85 {
86 QmpCommand *cmd;
87
88 QTAILQ_FOREACH(cmd, &qmp_commands, node) {
89 fn(cmd, opaque);
90 }
91 }