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 <glib.h> 17 #include "qapi/qmp/dispatch.h" 18 19 static QTAILQ_HEAD(QmpCommandList, QmpCommand) qmp_commands = 20 QTAILQ_HEAD_INITIALIZER(qmp_commands); 21 22 void qmp_register_command(const char *name, QmpCommandFunc *fn, 23 QmpCommandOptions options) 24 { 25 QmpCommand *cmd = g_malloc0(sizeof(*cmd)); 26 27 cmd->name = name; 28 cmd->fn = fn; 29 cmd->enabled = true; 30 cmd->options = options; 31 QTAILQ_INSERT_TAIL(&qmp_commands, cmd, node); 32 } 33 34 QmpCommand *qmp_find_command(const char *name) 35 { 36 QmpCommand *cmd; 37 38 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 39 if (strcmp(cmd->name, name) == 0) { 40 return cmd; 41 } 42 } 43 return NULL; 44 } 45 46 static void qmp_toggle_command(const char *name, bool enabled) 47 { 48 QmpCommand *cmd; 49 50 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 51 if (strcmp(cmd->name, name) == 0) { 52 cmd->enabled = enabled; 53 return; 54 } 55 } 56 } 57 58 void qmp_disable_command(const char *name) 59 { 60 qmp_toggle_command(name, false); 61 } 62 63 void qmp_enable_command(const char *name) 64 { 65 qmp_toggle_command(name, true); 66 } 67 68 bool qmp_command_is_enabled(const QmpCommand *cmd) 69 { 70 return cmd->enabled; 71 } 72 73 const char *qmp_command_name(const QmpCommand *cmd) 74 { 75 return cmd->name; 76 } 77 78 bool qmp_has_success_response(const QmpCommand *cmd) 79 { 80 return !(cmd->options & QCO_NO_SUCCESS_RESP); 81 } 82 83 void qmp_for_each_command(qmp_cmd_callback_fn fn, void *opaque) 84 { 85 QmpCommand *cmd; 86 87 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 88 fn(cmd, opaque); 89 } 90 } 91