From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Mbahz-0000Df-JZ for qemu-devel@nongnu.org; Thu, 13 Aug 2009 09:51:11 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Mbaht-00005E-IX for qemu-devel@nongnu.org; Thu, 13 Aug 2009 09:51:10 -0400 Received: from [199.232.76.173] (port=33486 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Mbaht-0008W6-4B for qemu-devel@nongnu.org; Thu, 13 Aug 2009 09:51:05 -0400 Received: from mx2.redhat.com ([66.187.237.31]:45061) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Mbahs-0003CV-IF for qemu-devel@nongnu.org; Thu, 13 Aug 2009 09:51:04 -0400 From: Luiz Capitulino Date: Thu, 13 Aug 2009 10:50:01 -0300 Message-Id: <1250171428-29308-3-git-send-email-lcapitulino@redhat.com> In-Reply-To: <1250171428-29308-1-git-send-email-lcapitulino@redhat.com> References: <1250171428-29308-1-git-send-email-lcapitulino@redhat.com> Subject: [Qemu-devel] [PATCH 02/29] Introduce QInt List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aliguori@us.ibm.com, avi@redhat.com 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 --- Makefile | 1 + qint.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ qint.h | 27 ++++++++++++++++++++ qobject.h | 1 + 4 files changed, 110 insertions(+), 0 deletions(-) create mode 100644 qint.c create mode 100644 qint.h diff --git a/Makefile b/Makefile index 5279504..e296b5b 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..6ac3499 --- /dev/null +++ b/qint.c @@ -0,0 +1,81 @@ +/* + * QInt data type. + * + * 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. + */ +#include "qint.h" +#include "qobject.h" +#include "qemu-common.h" + +static 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(QOBJECT(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_uint64(): Export QInt to uint64_t type + */ +uint64_t qint_to_uint64(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_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 QType qint_type = { + .code = QTYPE_QINT, + .destroy = qint_destroy_obj, +}; diff --git a/qint.h b/qint.h new file mode 100644 index 0000000..4c3b360 --- /dev/null +++ b/qint.h @@ -0,0 +1,27 @@ +#ifndef QINT_H +#define QINT_H + +#include "qobject.h" +#include "qemu-common.h" +#include + +typedef struct QInt { + QObject base; + int64_t number; +} QInt; + +QInt *qint_from_int(int value); +QInt *qint_from_int64(int64_t value); +int qint_to_int(const QInt *qi); +uint64_t qint_to_uint64(const QInt *qi); +uint32_t qint_to_uint32(const QInt *qi); + +/** + * qobject_to_qint(): Convert a QObject into a QInt + */ +static inline QInt *qobject_to_qint(const QObject *obj) +{ + return container_of(obj, QInt, base); +} + +#endif /* QINT_H */ diff --git a/qobject.h b/qobject.h index 467f258..a5bbe61 100644 --- a/qobject.h +++ b/qobject.h @@ -40,6 +40,7 @@ typedef enum { QTYPE_NONE, + QTYPE_QINT, } qtype_code; struct QObject; -- 1.6.4.67.gea5b1