diff options
author | Anand Avati <avati@redhat.com> | 2013-03-06 01:11:59 -0800 |
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committer | Anand Avati <avati@redhat.com> | 2013-09-03 11:25:33 -0700 |
commit | 0d60175bd684cf6a14f750579d82dbd1ba97fcbc (patch) | |
tree | 1571f530548196006526442f3fc027cb623bb6fa /contrib/qemu/qobject/qfloat.c | |
parent | 7dbfbfd3694e02b90e8f3ce509f5279da1523a02 (diff) |
contrib/qemu: Import qemu block source code
This qemu block format source code and its minimal
dependency files will be used in the next patch to implement
a qemu-block format translator.
Change-Id: Ic87638972f7ea9b3df84d7a0539512a250c11c1c
BUG: 986775
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5366
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'contrib/qemu/qobject/qfloat.c')
-rw-r--r-- | contrib/qemu/qobject/qfloat.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/contrib/qemu/qobject/qfloat.c b/contrib/qemu/qobject/qfloat.c new file mode 100644 index 00000000000..7de0992dba7 --- /dev/null +++ b/contrib/qemu/qobject/qfloat.c @@ -0,0 +1,68 @@ +/* + * 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. + * + */ + +#include "qapi/qmp/qfloat.h" +#include "qapi/qmp/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 = g_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); + g_free(qobject_to_qfloat(obj)); +} |