xref: /qemu/include/qapi/qmp/dispatch.h (revision 2fc979cb)
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  *
9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
10  * See the COPYING.LIB file in the top-level directory.
11  *
12  */
13 
14 #ifndef QAPI_QMP_DISPATCH_H
15 #define QAPI_QMP_DISPATCH_H
16 
17 #include "qemu/queue.h"
18 
19 typedef void (QmpCommandFunc)(QDict *, QObject **, Error **);
20 
21 typedef enum QmpCommandOptions
22 {
23     QCO_NO_OPTIONS            =  0x0,
24     QCO_NO_SUCCESS_RESP       =  (1U << 0),
25     QCO_ALLOW_OOB             =  (1U << 1),
26     QCO_ALLOW_PRECONFIG       =  (1U << 2),
27 } QmpCommandOptions;
28 
29 typedef struct QmpCommand
30 {
31     const char *name;
32     QmpCommandFunc *fn;
33     QmpCommandOptions options;
34     QTAILQ_ENTRY(QmpCommand) node;
35     bool enabled;
36 } QmpCommand;
37 
38 typedef QTAILQ_HEAD(QmpCommandList, QmpCommand) QmpCommandList;
39 
40 void qmp_register_command(QmpCommandList *cmds, const char *name,
41                           QmpCommandFunc *fn, QmpCommandOptions options);
42 const QmpCommand *qmp_find_command(const QmpCommandList *cmds,
43                                    const char *name);
44 void qmp_disable_command(QmpCommandList *cmds, const char *name);
45 void qmp_enable_command(QmpCommandList *cmds, const char *name);
46 
47 bool qmp_command_is_enabled(const QmpCommand *cmd);
48 const char *qmp_command_name(const QmpCommand *cmd);
49 bool qmp_has_success_response(const QmpCommand *cmd);
50 QDict *qmp_error_response(Error *err);
51 QDict *qmp_dispatch(const QmpCommandList *cmds, QObject *request,
52                     bool allow_oob);
53 bool qmp_is_oob(const QDict *dict);
54 
55 typedef void (*qmp_cmd_callback_fn)(const QmpCommand *cmd, void *opaque);
56 
57 void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
58                           void *opaque);
59 
60 #endif
61