qapi/qmp-registry.c

   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 void qmp_disable_command(const char *name)
  44 {
  45     QmpCommand *cmd;
  46
  47     QTAILQ_FOREACH(cmd, &qmp_commands, node) {
  48         if (strcmp(cmd->name, name) == 0) {
  49             cmd->enabled = false;
  50             return;
  51         }
  52     }
  53 }
  54
  55 bool qmp_command_is_enabled(const char *name)
  56 {
  57     QmpCommand *cmd;
  58
  59     QTAILQ_FOREACH(cmd, &qmp_commands, node) {
  60         if (strcmp(cmd->name, name) == 0) {
  61             return cmd->enabled;
  62         }
  63     }
  64
  65     return false;
  66 }
  67
  68 char **qmp_get_command_list(void)
  69 {
  70     QmpCommand *cmd;
  71     int count = 1;
  72     char **list_head, **list;
  73
  74     QTAILQ_FOREACH(cmd, &qmp_commands, node) {
  75         count++;
  76     }
  77
  78     list_head = list = g_malloc0(count * sizeof(char *));
  79
  80     QTAILQ_FOREACH(cmd, &qmp_commands, node) {
  81         *list = strdup(cmd->name);
  82         list++;
  83     }
  84
  85     return list_head;
  86 }