| 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-registry.h" |
| 17 | |
| 18 | void qmp_register_command(QmpCommandList *cmds, const char *name, |
| 19 | QmpCommandFunc *fn, QmpCommandOptions options, |
| 20 | uint64_t 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->features = 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 | } |