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 "qapi/qmp/dispatch.h"
  17
  18void qmp_register_command(QmpCommandList *cmds, const char *name,
  19                          QmpCommandFunc *fn, QmpCommandOptions options)
  20{
  21    QmpCommand *cmd = g_malloc0(sizeof(*cmd));
  22
  23    cmd->name = name;
  24    cmd->fn = fn;
  25    cmd->enabled = true;
  26    cmd->options = options;
  27    QTAILQ_INSERT_TAIL(cmds, cmd, node);
  28}
  29
  30QmpCommand *qmp_find_command(QmpCommandList *cmds, const char *name)
  31{
  32    QmpCommand *cmd;
  33
  34    QTAILQ_FOREACH(cmd, cmds, node) {
  35        if (strcmp(cmd->name, name) == 0) {
  36            return cmd;
  37        }
  38    }
  39    return NULL;
  40}
  41
  42static void qmp_toggle_command(QmpCommandList *cmds, const char *name,
  43                               bool enabled)
  44{
  45    QmpCommand *cmd;
  46
  47    QTAILQ_FOREACH(cmd, cmds, node) {
  48        if (strcmp(cmd->name, name) == 0) {
  49            cmd->enabled = enabled;
  50            return;
  51        }
  52    }
  53}
  54
  55void qmp_disable_command(QmpCommandList *cmds, const char *name)
  56{
  57    qmp_toggle_command(cmds, name, false);
  58}
  59
  60void qmp_enable_command(QmpCommandList *cmds, const char *name)
  61{
  62    qmp_toggle_command(cmds, name, true);
  63}
  64
  65bool qmp_command_is_enabled(const QmpCommand *cmd)
  66{
  67    return cmd->enabled;
  68}
  69
  70const char *qmp_command_name(const QmpCommand *cmd)
  71{
  72    return cmd->name;
  73}
  74
  75bool qmp_has_success_response(const QmpCommand *cmd)
  76{
  77    return !(cmd->options & QCO_NO_SUCCESS_RESP);
  78}
  79
  80void qmp_for_each_command(QmpCommandList *cmds, qmp_cmd_callback_fn fn,
  81                          void *opaque)
  82{
  83    QmpCommand *cmd;
  84
  85    QTAILQ_FOREACH(cmd, cmds, node) {
  86        fn(cmd, opaque);
  87    }
  88}
  89