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/qnum.h"
  21 #include "qapi/qmp/qdict.h"
  22 #include "qapi/qmp/qstring.h"
  23
  24 static bool qlit_equal_qdict(const QLitObject *lhs, const QDict *qdict)
  25 {
  26     int i;
  27
  28     for (i = 0; lhs->value.qdict[i].key; i++) {
  29         QObject *obj = qdict_get(qdict, lhs->value.qdict[i].key);
  30
  31         if (!qlit_equal_qobject(&lhs->value.qdict[i].value, obj)) {
  32             return false;
  33         }
  34     }
  35
  36     /* Note: the literal qdict must not contain duplicates, this is
  37      * considered a programming error and it isn't checked here. */
  38     if (qdict_size(qdict) != i) {
  39         return false;
  40     }
  41
  42     return true;
  43 }
  44
  45 static bool qlit_equal_qlist(const QLitObject *lhs, const QList *qlist)
  46 {
  47     QListEntry *e;
  48     int i = 0;
  49
  50     QLIST_FOREACH_ENTRY(qlist, e) {
  51         QObject *obj = qlist_entry_obj(e);
  52
  53         if (!qlit_equal_qobject(&lhs->value.qlist[i], obj)) {
  54             return false;
  55         }
  56         i++;
  57     }
  58
  59     return !e && lhs->value.qlist[i].type == QTYPE_NONE;
  60 }
  61
  62 bool qlit_equal_qobject(const QLitObject *lhs, const QObject *rhs)
  63 {
  64     if (!rhs || lhs->type != qobject_type(rhs)) {
  65         return false;
  66     }
  67
  68     switch (lhs->type) {
  69     case QTYPE_QBOOL:
  70         return lhs->value.qbool == qbool_get_bool(qobject_to_qbool(rhs));
  71     case QTYPE_QNUM:
  72         return lhs->value.qnum ==  qnum_get_int(qobject_to_qnum(rhs));
  73     case QTYPE_QSTRING:
  74         return (strcmp(lhs->value.qstr,
  75                        qstring_get_str(qobject_to_qstring(rhs))) == 0);
  76     case QTYPE_QDICT:
  77         return qlit_equal_qdict(lhs, qobject_to_qdict(rhs));
  78     case QTYPE_QLIST:
  79         return qlit_equal_qlist(lhs, qobject_to_qlist(rhs));
  80     case QTYPE_QNULL:
  81         return true;
  82     default:
  83         break;
  84     }
  85
  86     return false;
  87 }