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