From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Mz9SJ-0005mk-M2 for qemu-devel@nongnu.org; Sat, 17 Oct 2009 09:36:23 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Mz9SE-0005jk-RF for qemu-devel@nongnu.org; Sat, 17 Oct 2009 09:36:22 -0400 Received: from [199.232.76.173] (port=58960 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Mz9SE-0005jh-J0 for qemu-devel@nongnu.org; Sat, 17 Oct 2009 09:36:18 -0400 Received: from e37.co.us.ibm.com ([32.97.110.158]:49398) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Mz9SE-0000OG-5j for qemu-devel@nongnu.org; Sat, 17 Oct 2009 09:36:18 -0400 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e37.co.us.ibm.com (8.14.3/8.13.1) with ESMTP id n9HDZAio023728 for ; Sat, 17 Oct 2009 07:35:10 -0600 Received: from d03av04.boulder.ibm.com (d03av04.boulder.ibm.com [9.17.195.170]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n9HDaC8I178538 for ; Sat, 17 Oct 2009 07:36:12 -0600 Received: from d03av04.boulder.ibm.com (loopback [127.0.0.1]) by d03av04.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n9HDaCL6021462 for ; Sat, 17 Oct 2009 07:36:12 -0600 From: Anthony Liguori Date: Sat, 17 Oct 2009 08:36:02 -0500 Message-Id: <1255786571-3528-3-git-send-email-aliguori@us.ibm.com> In-Reply-To: <1255786571-3528-1-git-send-email-aliguori@us.ibm.com> References: <1255786571-3528-1-git-send-email-aliguori@us.ibm.com> Subject: [Qemu-devel] [PATCH 02/11] Add support for qfloat List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Anthony Liguori qfloat is a qobject wrapper for double precision floating points Signed-off-by: Anthony Liguori --- 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 + * + * 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 + * + * 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 + * + * 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 +#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