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 } 96