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 "qapi/qmp-core.h" 16 17 static QTAILQ_HEAD(QmpCommandList, QmpCommand) qmp_commands = 18 QTAILQ_HEAD_INITIALIZER(qmp_commands); 19 20 void qmp_register_command(const char *name, QmpCommandFunc *fn) 21 { 22 QmpCommand *cmd = g_malloc0(sizeof(*cmd)); 23 24 cmd->name = name; 25 cmd->type = QCT_NORMAL; 26 cmd->fn = fn; 27 cmd->enabled = true; 28 QTAILQ_INSERT_TAIL(&qmp_commands, cmd, node); 29 } 30 31 QmpCommand *qmp_find_command(const char *name) 32 { 33 QmpCommand *cmd; 34 35 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 36 if (strcmp(cmd->name, name) == 0) { 37 return cmd; 38 } 39 } 40 return NULL; 41 } 42 43 static void qmp_toggle_command(const char *name, bool enabled) 44 { 45 QmpCommand *cmd; 46 47 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 48 if (strcmp(cmd->name, name) == 0) { 49 cmd->enabled = enabled; 50 return; 51 } 52 } 53 } 54 55 void qmp_disable_command(const char *name) 56 { 57 qmp_toggle_command(name, false); 58 } 59 60 void qmp_enable_command(const char *name) 61 { 62 qmp_toggle_command(name, true); 63 } 64 65 bool qmp_command_is_enabled(const char *name) 66 { 67 QmpCommand *cmd; 68 69 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 70 if (strcmp(cmd->name, name) == 0) { 71 return cmd->enabled; 72 } 73 } 74 75 return false; 76 } 77 78 char **qmp_get_command_list(void) 79 { 80 QmpCommand *cmd; 81 int count = 1; 82 char **list_head, **list; 83 84 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 85 count++; 86 } 87 88 list_head = list = g_malloc0(count * sizeof(char *)); 89 90 QTAILQ_FOREACH(cmd, &qmp_commands, node) { 91 *list = strdup(cmd->name); 92 list++; 93 } 94 95 return list_head; 96 } 97