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[Qemu-devel] [PATCH 02/11] Add support for qfloat
From: |
Anthony Liguori |
Subject: |
[Qemu-devel] [PATCH 02/11] Add support for qfloat |
Date: |
Sat, 17 Oct 2009 08:36:02 -0500 |
qfloat is a qobject wrapper for double precision floating points
Signed-off-by: Anthony Liguori <address@hidden>
---
Makefile | 3 +-
qfloat.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
qfloat.h | 29 +++++++++++++++++++++++
qobject.h | 1 +
4 files changed, 108 insertions(+), 1 deletions(-)
create mode 100644 qfloat.c
create mode 100644 qfloat.h
diff --git a/Makefile b/Makefile
index e78a3d0..9294638 100644
--- a/Makefile
+++ b/Makefile
@@ -125,7 +125,8 @@ obj-y += net.o net-queue.o
obj-y += qemu-char.o aio.o net-checksum.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 += qint.o qstring.o qdict.o qlist.o qfloat.o
+obj-y += qemu-config.o
obj-$(CONFIG_BRLAPI) += baum.o
obj-$(CONFIG_WIN32) += tap-win32.o
diff --git a/qfloat.c b/qfloat.c
new file mode 100644
index 0000000..05215f5
--- /dev/null
+++ b/qfloat.c
@@ -0,0 +1,76 @@
+/*
+ * QFloat Module
+ *
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * Authors:
+ * Luiz Capitulino <address@hidden>
+ *
+ * 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 <address@hidden>
+ *
+ * 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));
+}
diff --git a/qfloat.h b/qfloat.h
new file mode 100644
index 0000000..9d67876
--- /dev/null
+++ b/qfloat.h
@@ -0,0 +1,29 @@
+/*
+ * QFloat Module
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ * Anthony Liguori <address@hidden>
+ *
+ * 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 */
diff --git a/qobject.h b/qobject.h
index 4cc9287..da03a5e 100644
--- a/qobject.h
+++ b/qobject.h
@@ -41,6 +41,7 @@ typedef enum {
QTYPE_QSTRING,
QTYPE_QDICT,
QTYPE_QLIST,
+ QTYPE_QFLOAT,
} qtype_code;
struct QObject;
--
1.6.2.5
- [Qemu-devel] [PATCH 0/11] json parser (v2), Anthony Liguori, 2009/10/17
- [Qemu-devel] [PATCH 01/11] Add append method to qstring and empty constructor, Anthony Liguori, 2009/10/17
- [Qemu-devel] [PATCH 02/11] Add support for qfloat,
Anthony Liguori <=
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Luiz Capitulino, 2009/10/18
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Anthony Liguori, 2009/10/19
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Amit Shah, 2009/10/22
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Anthony Liguori, 2009/10/22
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Amit Shah, 2009/10/22
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Jamie Lokier, 2009/10/23
- Re: [Qemu-devel] [PATCH 02/11] Add support for qfloat, Daniel P. Berrange, 2009/10/23
[Qemu-devel] [PATCH 03/11] Add a test case for qfloat, Anthony Liguori, 2009/10/17