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 <glib.h> 16 #include <string.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->type = QCT_NORMAL; 29 cmd->fn = fn; 30 cmd->enabled = true; 31 cmd->options = options; 32 QTAILQ_INSERT_TAIL(&qmp_commands, cmd, node); 33 } 34 35 QmpCommand *qmp_find_command(const char *name) 36 { 37 QmpCommand *cmd; 38 39 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 40 if (strcmp(cmd->name, name) == 0) { 41 return cmd; 42 } 43 } 44 return NULL; 45 } 46 47 static void qmp_toggle_command(const char *name, bool enabled) 48 { 49 QmpCommand *cmd; 50 51 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 52 if (strcmp(cmd->name, name) == 0) { 53 cmd->enabled = enabled; 54 return; 55 } 56 } 57 } 58 59 void qmp_disable_command(const char *name) 60 { 61 qmp_toggle_command(name, false); 62 } 63 64 void qmp_enable_command(const char *name) 65 { 66 qmp_toggle_command(name, true); 67 } 68 69 bool qmp_command_is_enabled(const QmpCommand *cmd) 70 { 71 return cmd->enabled; 72 } 73 74 const char *qmp_command_name(const QmpCommand *cmd) 75 { 76 return cmd->name; 77 } 78 79 bool qmp_has_success_response(const QmpCommand *cmd) 80 { 81 return !(cmd->options & QCO_NO_SUCCESS_RESP); 82 } 83 84 void qmp_for_each_command(qmp_cmd_callback_fn fn, void *opaque) 85 { 86 QmpCommand *cmd; 87 88 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 89 fn(cmd, opaque); 90 } 91 } 92