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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-simple-data-wrapper.c : simple implementation of a data wrapper */
/* store the data in a glib byte array */
/*
*
* Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@inria.fr> .
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "camel-simple-data-wrapper.h"
static CamelDataWrapperClass *parent_class=NULL;
/* Returns the class for a CamelDataWrapper */
#define CSDW_CLASS(so) CAMEL_SIMPLE_DATA_WRAPPER_CLASS (GTK_OBJECT(so)->klass)
static void _construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream, guint size);
static void _write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
static void
camel_simple_data_wrapper_class_init (CamelSimpleDataWrapperClass *camel_simple_data_wrapper_class)
{
CamelDataWrapperClass *camel_data_wrapper_class = CAMEL_DATA_WRAPPER_CLASS (camel_simple_data_wrapper_class);
parent_class = gtk_type_class (camel_data_wrapper_get_type ());
/* virtual method definition */
/* virtual method overload */
camel_data_wrapper_class->write_to_stream = _write_to_stream;
camel_data_wrapper_class->construct_from_stream = _construct_from_stream;
}
GtkType
camel_simple_data_wrapper_get_type (void)
{
static GtkType camel_simple_data_wrapper_type = 0;
if (!camel_simple_data_wrapper_type) {
GtkTypeInfo camel_simple_data_wrapper_info =
{
"CamelDataWrapper",
sizeof (CamelDataWrapper),
sizeof (CamelDataWrapperClass),
(GtkClassInitFunc) camel_simple_data_wrapper_class_init,
(GtkObjectInitFunc) NULL,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_simple_data_wrapper_type = gtk_type_unique (camel_data_wrapper_get_type (), &camel_simple_data_wrapper_info);
}
return camel_simple_data_wrapper_type;
}
static void
_write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
{
CamelSimpleDataWrapper *simple_data_wrapper = CAMEL_SIMPLE_DATA_WRAPPER (data_wrapper);
GByteArray *array;
g_assert (data_wrapper);
g_assert (stream);
g_assert (simple_data_wrapper->byte_array);
array = simple_data_wrapper->byte_array;
if (array->len)
camel_stream_write (stream, (gchar *)array->data, array->len);
return;
}
#define _CMSDW_TMP_BUF_SIZE 100
static void
_construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream, guint size)
{
CamelSimpleDataWrapper *simple_data_wrapper = CAMEL_SIMPLE_DATA_WRAPPER (data_wrapper);
guint current_index;
guint nb_bytes_read;
guint nb_bytes_left;
static gchar *tmp_buf;
GByteArray *array;
g_assert (data_wrapper);
g_assert (stream);
if (!size) return;
if (!tmp_buf) tmp_buf = g_new (gchar, _CMSDW_TMP_BUF_SIZE);
array = simple_data_wrapper->byte_array;
if (array)
g_byte_array_free (array, FALSE);
array = g_byte_array_new();
nb_bytes_left = size;
do {
nb_bytes_read = camel_stream_read (stream, tmp_buf,
MIN (_CMSDW_TMP_BUF_SIZE, nb_bytes_left));
nb_bytes_left -= nb_bytes_read;
if (nb_bytes_read) g_byte_array_append (array, tmp_buf, nb_bytes_read);
} while (nb_bytes_read && (nb_bytes_left>0));
}
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