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    /* QCO_COROUTINE and QCO_ALLOW_OOB are incompatible for now */
  24    assert(!((options & QCO_COROUTINE) && (options & QCO_ALLOW_OOB)));
  25
  26    cmd->name = name;
  27    cmd->fn = fn;
  28    cmd->enabled = true;
  29    cmd->options = options;
  30    QTAILQ_INSERT_TAIL(cmds, cmd, node);
  31}
  32
  33const QmpCommand *qmp_find_command(const QmpCommandList *cmds, const char *name)
  34{
  35    QmpCommand *cmd;
  36
  37    QTAILQ_FOREACH(cmd, cmds, node) {
  38        if (strcmp(cmd->name, name) == 0) {
  39            return cmd;
  40        }
  41    }
  42    return NULL;
  43}
  44
  45static void qmp_toggle_command(QmpCommandList *cmds, const char *name,
  46                               bool enabled)
  47{
  48    QmpCommand *cmd;
  49
  50    QTAILQ_FOREACH(cmd, cmds, node) {
  51        if (strcmp(cmd->name, name) == 0) {
  52            cmd->enabled = enabled;
  53            return;
  54        }
  55    }
  56}
  57
  58void qmp_disable_command(QmpCommandList *cmds, const char *name)
  59{
  60    qmp_toggle_command(cmds, name, false);
  61}
  62
  63void qmp_enable_command(QmpCommandList *cmds, const char *name)
  64{
  65    qmp_toggle_command(cmds, 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(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
  84                          void *opaque)
  85{
  86    const QmpCommand *cmd;
  87
  88    QTAILQ_FOREACH(cmd, cmds, node) {
  89        fn(cmd, opaque);
  90    }
  91}
  92