mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-14 05:16:18 +01:00
503 lines
13 KiB
C
503 lines
13 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
|
*
|
|
* Copyright (C) 2006-2007 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General
|
|
* Public License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*
|
|
* Author: Alexander Larsson <alexl@redhat.com>
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include <string.h>
|
|
#include "gdataoutputstream.h"
|
|
#include "gioenumtypes.h"
|
|
#include "glibintl.h"
|
|
|
|
|
|
/**
|
|
* SECTION:gdataoutputstream
|
|
* @short_description: Data Output Stream
|
|
* @include: gio/gio.h
|
|
* @see_also: #GOutputStream
|
|
*
|
|
* Data output stream implements #GOutputStream and includes functions for
|
|
* writing data directly to an output stream.
|
|
*
|
|
**/
|
|
|
|
|
|
|
|
struct _GDataOutputStreamPrivate {
|
|
GDataStreamByteOrder byte_order;
|
|
};
|
|
|
|
enum {
|
|
PROP_0,
|
|
PROP_BYTE_ORDER
|
|
};
|
|
|
|
static void g_data_output_stream_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec);
|
|
static void g_data_output_stream_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec);
|
|
|
|
G_DEFINE_TYPE (GDataOutputStream,
|
|
g_data_output_stream,
|
|
G_TYPE_FILTER_OUTPUT_STREAM)
|
|
|
|
|
|
static void
|
|
g_data_output_stream_class_init (GDataOutputStreamClass *klass)
|
|
{
|
|
GObjectClass *object_class;
|
|
|
|
g_type_class_add_private (klass, sizeof (GDataOutputStreamPrivate));
|
|
|
|
object_class = G_OBJECT_CLASS (klass);
|
|
object_class->get_property = g_data_output_stream_get_property;
|
|
object_class->set_property = g_data_output_stream_set_property;
|
|
|
|
/**
|
|
* GDataOutputStream:byte-order:
|
|
*
|
|
* Determines the byte ordering that is used when writing
|
|
* multi-byte entities (such as integers) to the stream.
|
|
*/
|
|
g_object_class_install_property (object_class,
|
|
PROP_BYTE_ORDER,
|
|
g_param_spec_enum ("byte-order",
|
|
P_("Byte order"),
|
|
P_("The byte order"),
|
|
G_TYPE_DATA_STREAM_BYTE_ORDER,
|
|
G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN,
|
|
G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_BLURB));
|
|
|
|
}
|
|
|
|
static void
|
|
g_data_output_stream_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GDataOutputStream *dstream;
|
|
|
|
dstream = G_DATA_OUTPUT_STREAM (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_BYTE_ORDER:
|
|
g_data_output_stream_set_byte_order (dstream, g_value_get_enum (value));
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
g_data_output_stream_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GDataOutputStreamPrivate *priv;
|
|
GDataOutputStream *dstream;
|
|
|
|
dstream = G_DATA_OUTPUT_STREAM (object);
|
|
priv = dstream->priv;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_BYTE_ORDER:
|
|
g_value_set_enum (value, priv->byte_order);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
g_data_output_stream_init (GDataOutputStream *stream)
|
|
{
|
|
stream->priv = G_TYPE_INSTANCE_GET_PRIVATE (stream,
|
|
G_TYPE_DATA_OUTPUT_STREAM,
|
|
GDataOutputStreamPrivate);
|
|
|
|
stream->priv->byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_new:
|
|
* @base_stream: a #GOutputStream.
|
|
*
|
|
* Creates a new data output stream for @base_stream.
|
|
*
|
|
* Returns: #GDataOutputStream.
|
|
**/
|
|
GDataOutputStream *
|
|
g_data_output_stream_new (GOutputStream *base_stream)
|
|
{
|
|
GDataOutputStream *stream;
|
|
|
|
g_return_val_if_fail (G_IS_OUTPUT_STREAM (base_stream), NULL);
|
|
|
|
stream = g_object_new (G_TYPE_DATA_OUTPUT_STREAM,
|
|
"base-stream", base_stream,
|
|
NULL);
|
|
|
|
return stream;
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_set_byte_order:
|
|
* @stream: a #GDataOutputStream.
|
|
* @order: a %GDataStreamByteOrder.
|
|
*
|
|
* Sets the byte order of the data output stream to @order.
|
|
**/
|
|
void
|
|
g_data_output_stream_set_byte_order (GDataOutputStream *stream,
|
|
GDataStreamByteOrder order)
|
|
{
|
|
GDataOutputStreamPrivate *priv;
|
|
g_return_if_fail (G_IS_DATA_OUTPUT_STREAM (stream));
|
|
priv = stream->priv;
|
|
if (priv->byte_order != order)
|
|
{
|
|
priv->byte_order = order;
|
|
g_object_notify (G_OBJECT (stream), "byte-order");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_get_byte_order:
|
|
* @stream: a #GDataOutputStream.
|
|
*
|
|
* Gets the byte order for the stream.
|
|
*
|
|
* Returns: the #GDataStreamByteOrder for the @stream.
|
|
**/
|
|
GDataStreamByteOrder
|
|
g_data_output_stream_get_byte_order (GDataOutputStream *stream)
|
|
{
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN);
|
|
|
|
return stream->priv->byte_order;
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_byte:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #guchar.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts a byte into the output stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_byte (GDataOutputStream *stream,
|
|
guchar data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 1,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_int16:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #gint16.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts a signed 16-bit integer into the output stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_int16 (GDataOutputStream *stream,
|
|
gint16 data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
switch (stream->priv->byte_order)
|
|
{
|
|
case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
|
|
data = GINT16_TO_BE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
|
|
data = GINT16_TO_LE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 2,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_uint16:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #guint16.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts an unsigned 16-bit integer into the output stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_uint16 (GDataOutputStream *stream,
|
|
guint16 data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
switch (stream->priv->byte_order)
|
|
{
|
|
case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
|
|
data = GUINT16_TO_BE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
|
|
data = GUINT16_TO_LE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 2,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_int32:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #gint32.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts a signed 32-bit integer into the output stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_int32 (GDataOutputStream *stream,
|
|
gint32 data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
switch (stream->priv->byte_order)
|
|
{
|
|
case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
|
|
data = GINT32_TO_BE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
|
|
data = GINT32_TO_LE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 4,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_uint32:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #guint32.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts an unsigned 32-bit integer into the stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_uint32 (GDataOutputStream *stream,
|
|
guint32 data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
switch (stream->priv->byte_order)
|
|
{
|
|
case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
|
|
data = GUINT32_TO_BE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
|
|
data = GUINT32_TO_LE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 4,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_int64:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #gint64.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts a signed 64-bit integer into the stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_int64 (GDataOutputStream *stream,
|
|
gint64 data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
switch (stream->priv->byte_order)
|
|
{
|
|
case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
|
|
data = GINT64_TO_BE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
|
|
data = GINT64_TO_LE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 8,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_uint64:
|
|
* @stream: a #GDataOutputStream.
|
|
* @data: a #guint64.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts an unsigned 64-bit integer into the stream.
|
|
*
|
|
* Returns: %TRUE if @data was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_uint64 (GDataOutputStream *stream,
|
|
guint64 data,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
|
|
switch (stream->priv->byte_order)
|
|
{
|
|
case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
|
|
data = GUINT64_TO_BE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
|
|
data = GUINT64_TO_LE (data);
|
|
break;
|
|
case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
&data, 8,
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|
|
|
|
/**
|
|
* g_data_output_stream_put_string:
|
|
* @stream: a #GDataOutputStream.
|
|
* @str: a string.
|
|
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
|
|
* @error: a #GError, %NULL to ignore.
|
|
*
|
|
* Puts a string into the output stream.
|
|
*
|
|
* Returns: %TRUE if @string was successfully added to the @stream.
|
|
**/
|
|
gboolean
|
|
g_data_output_stream_put_string (GDataOutputStream *stream,
|
|
const char *str,
|
|
GCancellable *cancellable,
|
|
GError **error)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_return_val_if_fail (G_IS_DATA_OUTPUT_STREAM (stream), FALSE);
|
|
g_return_val_if_fail (str != NULL, FALSE);
|
|
|
|
return g_output_stream_write_all (G_OUTPUT_STREAM (stream),
|
|
str, strlen (str),
|
|
&bytes_written,
|
|
cancellable, error);
|
|
}
|