From patchwork Wed Nov 11 17:28:56 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anthony Liguori X-Patchwork-Id: 38159 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 2C123B6F2B for ; Thu, 12 Nov 2009 04:59:26 +1100 (EST) Received: from localhost ([127.0.0.1]:47884 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N8HTX-0007l9-At for incoming@patchwork.ozlabs.org; Wed, 11 Nov 2009 12:59:23 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1N8H0j-0006yw-JS for qemu-devel@nongnu.org; Wed, 11 Nov 2009 12:29:37 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1N8H0b-0006tA-En for qemu-devel@nongnu.org; Wed, 11 Nov 2009 12:29:33 -0500 Received: from [199.232.76.173] (port=48464 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N8H0a-0006sH-Dx for qemu-devel@nongnu.org; Wed, 11 Nov 2009 12:29:28 -0500 Received: from e37.co.us.ibm.com ([32.97.110.158]:57634) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1N8H0Z-00022V-Vf for qemu-devel@nongnu.org; Wed, 11 Nov 2009 12:29:28 -0500 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 nABHSFoi004247 for ; Wed, 11 Nov 2009 10:28:15 -0700 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id nABHT6Is116862 for ; Wed, 11 Nov 2009 10:29:08 -0700 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id nABHT6Hv007255 for ; Wed, 11 Nov 2009 10:29:06 -0700 Received: from localhost.localdomain (sig-9-65-32-87.mts.ibm.com [9.65.32.87]) by d03av03.boulder.ibm.com (8.14.3/8.13.1/NCO v10.0 AVin) with ESMTP id nABHT43F007179; Wed, 11 Nov 2009 10:29:06 -0700 From: Anthony Liguori To: qemu-devel@nongnu.org Date: Wed, 11 Nov 2009 11:28:56 -0600 Message-Id: <1257960543-26373-4-git-send-email-aliguori@us.ibm.com> X-Mailer: git-send-email 1.6.2.5 In-Reply-To: <1257960543-26373-1-git-send-email-aliguori@us.ibm.com> References: <1257960543-26373-1-git-send-email-aliguori@us.ibm.com> X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) Cc: Anthony Liguori , Luiz Capitulino Subject: [Qemu-devel] [PATCH 04/11] Add a QFloat datatype X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org 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 30f1c9d..8d94fda 100644 --- a/Makefile +++ b/Makefile @@ -135,7 +135,8 @@ 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 += qint.o qstring.o qdict.o qlist.o qfloat.o +obj-y += qemu-config.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 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 76f669f..67b03d0 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;