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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 | } |