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 cmd->name = name; 24 cmd->fn = fn; 25 cmd->enabled = true; 26 cmd->options = options; 27 QTAILQ_INSERT_TAIL(cmds, cmd, node); 28 } 29 30 void qmp_unregister_command(QmpCommandList *cmds, const char *name) 31 { 32 QmpCommand *cmd = qmp_find_command(cmds, name); 33 34 QTAILQ_REMOVE(cmds, cmd, node); 35 g_free(cmd); 36 } 37 38 QmpCommand *qmp_find_command(QmpCommandList *cmds, const char *name) 39 { 40 QmpCommand *cmd; 41 42 QTAILQ_FOREACH(cmd, cmds, node) { 43 if (strcmp(cmd->name, name) == 0) { 44 return cmd; 45 } 46 } 47 return NULL; 48 } 49 50 static void qmp_toggle_command(QmpCommandList *cmds, const char *name, 51 bool enabled) 52 { 53 QmpCommand *cmd; 54 55 QTAILQ_FOREACH(cmd, cmds, node) { 56 if (strcmp(cmd->name, name) == 0) { 57 cmd->enabled = enabled; 58 return; 59 } 60 } 61 } 62 63 void qmp_disable_command(QmpCommandList *cmds, const char *name) 64 { 65 qmp_toggle_command(cmds, name, false); 66 } 67 68 void qmp_enable_command(QmpCommandList *cmds, const char *name) 69 { 70 qmp_toggle_command(cmds, name, true); 71 } 72 73 bool qmp_command_is_enabled(const QmpCommand *cmd) 74 { 75 return cmd->enabled; 76 } 77 78 const char *qmp_command_name(const QmpCommand *cmd) 79 { 80 return cmd->name; 81 } 82 83 bool qmp_has_success_response(const QmpCommand *cmd) 84 { 85 return !(cmd->options & QCO_NO_SUCCESS_RESP); 86 } 87 88 void qmp_for_each_command(QmpCommandList *cmds, qmp_cmd_callback_fn fn, 89 void *opaque) 90 { 91 QmpCommand *cmd; 92 93 QTAILQ_FOREACH(cmd, cmds, node) { 94 fn(cmd, opaque); 95 } 96 } 97