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[Qemu-devel] [PATCH 02/29] Introduce QInt
From: |
Luiz Capitulino |
Subject: |
[Qemu-devel] [PATCH 02/29] Introduce QInt |
Date: |
Wed, 19 Aug 2009 20:07:33 -0300 |
QInt is a high-level data type that can be used to store integers
and perform type-safe conversions.
The following functions are available:
- qint_from_int() Create a new QInt from an int
- qint_from_int64() Create a new QInt from an int64_t
- qint_to_int() Export QInt to int
- qint_to_uint64() Export QInt to uint64_t
- qint_to_uint32() Export QInt to uint32_t
Signed-off-by: Luiz Capitulino <address@hidden>
---
Makefile | 1 +
qint.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
qint.h | 20 +++++++++++++
qobject.h | 1 +
4 files changed, 114 insertions(+), 0 deletions(-)
create mode 100644 qint.c
create mode 100644 qint.h
diff --git a/Makefile b/Makefile
index f6bdf84..d604302 100644
--- a/Makefile
+++ b/Makefile
@@ -90,6 +90,7 @@ obj-y += buffered_file.o migration.o migration-tcp.o net.o
qemu-sockets.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 ssi.o
+obj-y += qint.o
obj-$(CONFIG_BRLAPI) += baum.o
obj-$(CONFIG_WIN32) += tap-win32.o
diff --git a/qint.c b/qint.c
new file mode 100644
index 0000000..8398824
--- /dev/null
+++ b/qint.c
@@ -0,0 +1,92 @@
+/*
+ * QInt data type.
+ *
+ * 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.
+ */
+#include "qint.h"
+#include "qobject.h"
+#include "qemu-common.h"
+
+static const QType qint_type;
+
+/**
+ * qint_from_int64(): Create a new QInt from an int64_t
+ *
+ * Return new reference.
+ */
+QInt *qint_from_int64(int64_t value)
+{
+ QInt *qi;
+
+ qi = qemu_malloc(sizeof(*qi));
+ qi->number = value;
+ QOBJECT_INIT(qi, &qint_type);
+
+ return qi;
+}
+
+/**
+ * qint_from_int(): Create a new QInt from an int
+ *
+ * Return new reference.
+ */
+QInt *qint_from_int(int value)
+{
+ return qint_from_int64(value);
+}
+
+/**
+ * qint_to_int(): Export QInt to int type
+ */
+int qint_to_int(const QInt *qi)
+{
+ return qi->number;
+}
+
+/**
+ * qint_to_uint32(): Export QInt to uint32_t type
+ */
+uint32_t qint_to_uint32(const QInt *qi)
+{
+ return qi->number;
+}
+
+/**
+ * qint_to_uint64(): Export QInt to uint64_t type
+ */
+uint64_t qint_to_uint64(const QInt *qi)
+{
+ return qi->number;
+}
+
+/**
+ * qobject_to_qint(): Convert a QObject into a QInt
+ */
+QInt *qobject_to_qint(const QObject *obj)
+{
+ if (qobject_type(obj) != QTYPE_QINT)
+ return NULL;
+
+ return container_of(obj, QInt, base);
+}
+
+/**
+ * qint_destroy_obj(): Free all memory allocated by a
+ * QInt object
+ */
+static void qint_destroy_obj(QObject *obj)
+{
+ assert(obj != NULL);
+ qemu_free(qobject_to_qint(obj));
+}
+
+static const QType qint_type = {
+ .code = QTYPE_QINT,
+ .destroy = qint_destroy_obj,
+};
diff --git a/qint.h b/qint.h
new file mode 100644
index 0000000..1307761
--- /dev/null
+++ b/qint.h
@@ -0,0 +1,20 @@
+#ifndef QINT_H
+#define QINT_H
+
+#include "qobject.h"
+#include "qemu-common.h"
+#include <stdint.h>
+
+typedef struct QInt {
+ QType_HEAD
+ int64_t number;
+} QInt;
+
+QInt *qint_from_int(int value);
+QInt *qint_from_int64(int64_t value);
+int qint_to_int(const QInt *qi);
+uint32_t qint_to_uint32(const QInt *qi);
+uint64_t qint_to_uint64(const QInt *qi);
+QInt *qobject_to_qint(const QObject *obj);
+
+#endif /* QINT_H */
diff --git a/qobject.h b/qobject.h
index c23b5f3..8ff7bfd 100644
--- a/qobject.h
+++ b/qobject.h
@@ -41,6 +41,7 @@
typedef enum {
QTYPE_NONE,
+ QTYPE_QINT,
} qtype_code;
struct QObject;
--
1.6.4.67.gea5b1
[Qemu-devel] Re: [PATCH 01/29] Introduce QObject, Paolo Bonzini, 2009/08/20
[Qemu-devel] [PATCH 02/29] Introduce QInt,
Luiz Capitulino <=
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Avi Kivity, 2009/08/20
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Paolo Bonzini, 2009/08/20
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Luiz Capitulino, 2009/08/20
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Avi Kivity, 2009/08/20
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Luiz Capitulino, 2009/08/20
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Avi Kivity, 2009/08/20
- [Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Luiz Capitulino, 2009/08/20
[Qemu-devel] Re: [PATCH 02/29] Introduce QInt, Paolo Bonzini, 2009/08/20
[Qemu-devel] [PATCH 03/29] Introduce QString, Luiz Capitulino, 2009/08/19