include/qapi/qmp/qnum.h

   1 /*
   2  * QNum Module
   3  *
   4  * Copyright (C) 2009 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Luiz Capitulino <lcapitulino@redhat.com>
   8  *  Anthony Liguori <aliguori@us.ibm.com>
   9  *  Marc-André Lureau <marcandre.lureau@redhat.com>
  10  *
  11  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  12  * See the COPYING.LIB file in the top-level directory.
  13  */
  14
  15 #ifndef QNUM_H
  16 #define QNUM_H
  17
  18 #include "qapi/qmp/qobject.h"
  19
  20 typedef enum {
  21     QNUM_I64,
  22     QNUM_U64,
  23     QNUM_DOUBLE
  24 } QNumKind;
  25
  26 typedef struct QNum {
  27     QObject base;
  28     QNumKind kind;
  29     union {
  30         int64_t i64;
  31         uint64_t u64;
  32         double dbl;
  33     } u;
  34 } QNum;
  35
  36 QNum *qnum_from_int(int64_t value);
  37 QNum *qnum_from_uint(uint64_t value);
  38 QNum *qnum_from_double(double value);
  39
  40 bool qnum_get_try_int(const QNum *qn, int64_t *val);
  41 int64_t qnum_get_int(const QNum *qn);
  42
  43 bool qnum_get_try_uint(const QNum *qn, uint64_t *val);
  44 uint64_t qnum_get_uint(const QNum *qn);
  45
  46 double qnum_get_double(QNum *qn);
  47
  48 char *qnum_to_string(QNum *qn);
  49
  50 QNum *qobject_to_qnum(const QObject *obj);
  51 void qnum_destroy_obj(QObject *obj);
  52
  53 #endif /* QNUM_H */