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