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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 "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 | unsigned special_features) | |
21 | { | |
22 | QmpCommand *cmd = g_malloc0(sizeof(*cmd)); | |
23 | ||
24 | /* QCO_COROUTINE and QCO_ALLOW_OOB are incompatible for now */ | |
25 | assert(!((options & QCO_COROUTINE) && (options & QCO_ALLOW_OOB))); | |
26 | ||
27 | cmd->name = name; | |
28 | cmd->fn = fn; | |
29 | cmd->enabled = true; | |
30 | cmd->options = options; | |
31 | cmd->special_features = special_features; | |
32 | QTAILQ_INSERT_TAIL(cmds, cmd, node); | |
33 | } | |
34 | ||
35 | const QmpCommand *qmp_find_command(const QmpCommandList *cmds, const char *name) | |
36 | { | |
37 | QmpCommand *cmd; | |
38 | ||
39 | QTAILQ_FOREACH(cmd, cmds, node) { | |
40 | if (strcmp(cmd->name, name) == 0) { | |
41 | return cmd; | |
42 | } | |
43 | } | |
44 | return NULL; | |
45 | } | |
46 | ||
47 | static void qmp_toggle_command(QmpCommandList *cmds, const char *name, | |
48 | bool enabled, const char *disable_reason) | |
49 | { | |
50 | QmpCommand *cmd; | |
51 | ||
52 | QTAILQ_FOREACH(cmd, cmds, node) { | |
53 | if (strcmp(cmd->name, name) == 0) { | |
54 | cmd->enabled = enabled; | |
55 | cmd->disable_reason = disable_reason; | |
56 | return; | |
57 | } | |
58 | } | |
59 | } | |
60 | ||
61 | void qmp_disable_command(QmpCommandList *cmds, const char *name, | |
62 | const char *disable_reason) | |
63 | { | |
64 | qmp_toggle_command(cmds, name, false, disable_reason); | |
65 | } | |
66 | ||
67 | void qmp_enable_command(QmpCommandList *cmds, const char *name) | |
68 | { | |
69 | qmp_toggle_command(cmds, name, true, NULL); | |
70 | } | |
71 | ||
72 | bool qmp_command_is_enabled(const QmpCommand *cmd) | |
73 | { | |
74 | return cmd->enabled; | |
75 | } | |
76 | ||
77 | const char *qmp_command_name(const QmpCommand *cmd) | |
78 | { | |
79 | return cmd->name; | |
80 | } | |
81 | ||
82 | bool qmp_has_success_response(const QmpCommand *cmd) | |
83 | { | |
84 | return !(cmd->options & QCO_NO_SUCCESS_RESP); | |
85 | } | |
86 | ||
87 | void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn, | |
88 | void *opaque) | |
89 | { | |
90 | const QmpCommand *cmd; | |
91 | ||
92 | QTAILQ_FOREACH(cmd, cmds, node) { | |
93 | fn(cmd, opaque); | |
94 | } | |
95 | } |