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
qmp_register_command(QmpCommandList * cmds,const char * name,QmpCommandFunc * fn,QmpCommandOptions options,unsigned special_features)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
qmp_find_command(const QmpCommandList * cmds,const char * name)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
qmp_toggle_command(QmpCommandList * cmds,const char * name,bool enabled,const char * disable_reason)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
qmp_disable_command(QmpCommandList * cmds,const char * name,const char * disable_reason)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
qmp_enable_command(QmpCommandList * cmds,const char * name)67 void qmp_enable_command(QmpCommandList *cmds, const char *name)
68 {
69 qmp_toggle_command(cmds, name, true, NULL);
70 }
71
qmp_command_is_enabled(const QmpCommand * cmd)72 bool qmp_command_is_enabled(const QmpCommand *cmd)
73 {
74 return cmd->enabled;
75 }
76
qmp_command_name(const QmpCommand * cmd)77 const char *qmp_command_name(const QmpCommand *cmd)
78 {
79 return cmd->name;
80 }
81
qmp_has_success_response(const QmpCommand * cmd)82 bool qmp_has_success_response(const QmpCommand *cmd)
83 {
84 return !(cmd->options & QCO_NO_SUCCESS_RESP);
85 }
86
qmp_for_each_command(const QmpCommandList * cmds,qmp_cmd_callback_fn fn,void * opaque)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 }
96