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authorAnthony Liguori <aliguori@us.ibm.com>2009-11-11 10:36:08 -0600
committerAnthony Liguori <aliguori@us.ibm.com>2009-11-17 08:49:38 -0600
commitec072ced1e48cccbdd2275d7b910ad29efb0f2d0 (patch)
tree8d3129ade9cff19ef5c545daf999b716877dd615
parentd30ec846ed89672426b19d50a899ae849ec27edf (diff)
Add a QFloat datatype
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--Makefile4
-rw-r--r--qfloat.c76
-rw-r--r--qfloat.h29
-rw-r--r--qobject.h1
4 files changed, 108 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 489c5a074..417f9c9f3 100644
--- a/Makefile
+++ b/Makefile
@@ -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
diff --git a/qfloat.c b/qfloat.c
new file mode 100644
index 000000000..05215f502
--- /dev/null
+++ b/qfloat.c
@@ -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));
+}
diff --git a/qfloat.h b/qfloat.h
new file mode 100644
index 000000000..9d6787659
--- /dev/null
+++ b/qfloat.h
@@ -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 */
diff --git a/qobject.h b/qobject.h
index 76f669f95..67b03d089 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;