Add a QFloat datatype

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2009-11-11 10:36:08 -06:00
parent d30ec846ed
commit ec072ced1e
4 changed files with 108 additions and 2 deletions

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@ -137,8 +137,8 @@ obj-y += buffered_file.o migration.o migration-tcp.o qemu-sockets.o
obj-y += qemu-char.o aio.o savevm.o
obj-y += msmouse.o ps2.o
obj-y += qdev.o qdev-properties.o
obj-y += qint.o qstring.o qdict.o qlist.o qemu-config.o
obj-y += block-migration.o
obj-y += qint.o qstring.o qdict.o qlist.o qfloat.o
obj-y += qemu-config.o block-migration.o
obj-$(CONFIG_BRLAPI) += baum.o
obj-$(CONFIG_POSIX) += migration-exec.o migration-unix.o migration-fd.o

76
qfloat.c Normal file
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@ -0,0 +1,76 @@
/*
* QFloat Module
*
* Copyright (C) 2009 Red Hat Inc.
*
* Authors:
* Luiz Capitulino <lcapitulino@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Copyright IBM, Corp. 2009
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#include "qfloat.h"
#include "qobject.h"
#include "qemu-common.h"
static void qfloat_destroy_obj(QObject *obj);
static const QType qfloat_type = {
.code = QTYPE_QFLOAT,
.destroy = qfloat_destroy_obj,
};
/**
* qfloat_from_int(): Create a new QFloat from a float
*
* Return strong reference.
*/
QFloat *qfloat_from_double(double value)
{
QFloat *qf;
qf = qemu_malloc(sizeof(*qf));
qf->value = value;
QOBJECT_INIT(qf, &qfloat_type);
return qf;
}
/**
* qfloat_get_double(): Get the stored float
*/
double qfloat_get_double(const QFloat *qf)
{
return qf->value;
}
/**
* qobject_to_qfloat(): Convert a QObject into a QFloat
*/
QFloat *qobject_to_qfloat(const QObject *obj)
{
if (qobject_type(obj) != QTYPE_QFLOAT)
return NULL;
return container_of(obj, QFloat, base);
}
/**
* qfloat_destroy_obj(): Free all memory allocated by a
* QFloat object
*/
static void qfloat_destroy_obj(QObject *obj)
{
assert(obj != NULL);
qemu_free(qobject_to_qfloat(obj));
}

29
qfloat.h Normal file
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@ -0,0 +1,29 @@
/*
* QFloat Module
*
* Copyright IBM, Corp. 2009
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#ifndef QFLOAT_H
#define QFLOAT_H
#include <stdint.h>
#include "qobject.h"
typedef struct QFloat {
QObject_HEAD;
double value;
} QFloat;
QFloat *qfloat_from_double(double value);
double qfloat_get_double(const QFloat *qi);
QFloat *qobject_to_qfloat(const QObject *obj);
#endif /* QFLOAT_H */

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@ -41,6 +41,7 @@ typedef enum {
QTYPE_QSTRING,
QTYPE_QDICT,
QTYPE_QLIST,
QTYPE_QFLOAT,
} qtype_code;
struct QObject;