LXR qemu/qobject/qlit.c

   1/*
   2 * QLit literal qobject
   3 *
   4 * Copyright IBM, Corp. 2009
   5 * Copyright (c) 2013, 2015, 2017 Red Hat Inc.
   6 *
   7 * Authors:
   8 *  Anthony Liguori   <aliguori@us.ibm.com>
   9 *  Markus Armbruster <armbru@redhat.com>
  10 *  Marc-André Lureau <marcandre.lureau@redhat.com>
  11 *
  12 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  13 * See the COPYING.LIB file in the top-level directory.
  14 */
  15
  16#include "qemu/osdep.h"
  17
  18#include "qapi/qmp/qlit.h"
  19#include "qapi/qmp/qbool.h"
  20#include "qapi/qmp/qlist.h"
  21#include "qapi/qmp/qnum.h"
  22#include "qapi/qmp/qdict.h"
  23#include "qapi/qmp/qstring.h"
  24#include "qapi/qmp/qnull.h"
  25
  26static bool qlit_equal_qdict(const QLitObject *lhs, const QDict *qdict)
  27{
  28    int i;
  29
  30    for (i = 0; lhs->value.qdict[i].key; i++) {
  31        QObject *obj = qdict_get(qdict, lhs->value.qdict[i].key);
  32
  33        if (!qlit_equal_qobject(&lhs->value.qdict[i].value, obj)) {
  34            return false;
  35        }
  36    }
  37
  38    /* Note: the literal qdict must not contain duplicates, this is
  39     * considered a programming error and it isn't checked here. */
  40    if (qdict_size(qdict) != i) {
  41        return false;
  42    }
  43
  44    return true;
  45}
  46
  47static bool qlit_equal_qlist(const QLitObject *lhs, const QList *qlist)
  48{
  49    QListEntry *e;
  50    int i = 0;
  51
  52    QLIST_FOREACH_ENTRY(qlist, e) {
  53        QObject *obj = qlist_entry_obj(e);
  54
  55        if (!qlit_equal_qobject(&lhs->value.qlist[i], obj)) {
  56            return false;
  57        }
  58        i++;
  59    }
  60
  61    return !e && lhs->value.qlist[i].type == QTYPE_NONE;
  62}
  63
  64bool qlit_equal_qobject(const QLitObject *lhs, const QObject *rhs)
  65{
  66    if (!rhs || lhs->type != qobject_type(rhs)) {
  67        return false;
  68    }
  69
  70    switch (lhs->type) {
  71    case QTYPE_QBOOL:
  72        return lhs->value.qbool == qbool_get_bool(qobject_to(QBool, rhs));
  73    case QTYPE_QNUM:
  74        return lhs->value.qnum ==  qnum_get_int(qobject_to(QNum, rhs));
  75    case QTYPE_QSTRING:
  76        return (strcmp(lhs->value.qstr,
  77                       qstring_get_str(qobject_to(QString, rhs))) == 0);
  78    case QTYPE_QDICT:
  79        return qlit_equal_qdict(lhs, qobject_to(QDict, rhs));
  80    case QTYPE_QLIST:
  81        return qlit_equal_qlist(lhs, qobject_to(QList, rhs));
  82    case QTYPE_QNULL:
  83        return true;
  84    default:
  85        break;
  86    }
  87
  88    return false;
  89}
  90
  91QObject *qobject_from_qlit(const QLitObject *qlit)
  92{
  93    switch (qlit->type) {
  94    case QTYPE_QNULL:
  95        return QOBJECT(qnull());
  96    case QTYPE_QNUM:
  97        return QOBJECT(qnum_from_int(qlit->value.qnum));
  98    case QTYPE_QSTRING:
  99        return QOBJECT(qstring_from_str(qlit->value.qstr));
 100    case QTYPE_QDICT: {
 101        QDict *qdict = qdict_new();
 102        QLitDictEntry *e;
 103
 104        for (e = qlit->value.qdict; e->key; e++) {
 105            qdict_put_obj(qdict, e->key, qobject_from_qlit(&e->value));
 106        }
 107        return QOBJECT(qdict);
 108    }
 109    case QTYPE_QLIST: {
 110        QList *qlist = qlist_new();
 111        QLitObject *e;
 112
 113        for (e = qlit->value.qlist; e->type != QTYPE_NONE; e++) {
 114            qlist_append_obj(qlist, qobject_from_qlit(e));
 115        }
 116        return QOBJECT(qlist);
 117    }
 118    case QTYPE_QBOOL:
 119        return QOBJECT(qbool_from_bool(qlit->value.qbool));
 120    default:
 121        assert(0);
 122    }
 123
 124    return NULL;
 125}
 126