LXR qemu/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 "qemu/osdep.h"
  16#include <glib.h>
  17#include "qapi/qmp/dispatch.h"
  18
  19static QTAILQ_HEAD(QmpCommandList, QmpCommand) qmp_commands =
  20    QTAILQ_HEAD_INITIALIZER(qmp_commands);
  21
  22void 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
  34QmpCommand *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
  46static 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
  58void qmp_disable_command(const char *name)
  59{
  60    qmp_toggle_command(name, false);
  61}
  62
  63void qmp_enable_command(const char *name)
  64{
  65    qmp_toggle_command(name, true);
  66}
  67
  68bool qmp_command_is_enabled(const QmpCommand *cmd)
  69{
  70    return cmd->enabled;
  71}
  72
  73const char *qmp_command_name(const QmpCommand *cmd)
  74{
  75    return cmd->name;
  76}
  77
  78bool qmp_has_success_response(const QmpCommand *cmd)
  79{
  80    return !(cmd->options & QCO_NO_SUCCESS_RESP);
  81}
  82
  83void 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