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-rw-r--r--camel/camel-simple-data-wrapper.c132
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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));
+
+}