diff options
Diffstat (limited to 'camel/camel-simple-data-wrapper-stream.c')
| -rw-r--r-- | camel/camel-simple-data-wrapper-stream.c | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/camel/camel-simple-data-wrapper-stream.c b/camel/camel-simple-data-wrapper-stream.c deleted file mode 100644 index 5103e1383c..0000000000 --- a/camel/camel-simple-data-wrapper-stream.c +++ /dev/null @@ -1,276 +0,0 @@ -/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ -/* camel-simple-data-wrapper-stream.c - * - * Copyright 1999, 2000 HelixCode (http://www.helixcode.com) - * - * 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. - * - * Author: Ettore Perazzoli - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include "camel-simple-data-wrapper-stream.h" - - -static CamelStreamClass *parent_class = NULL; - - -/* CamelStream methods. */ - -static gint -read (CamelStream *stream, - gchar *buffer, - gint n) -{ - CamelSimpleDataWrapperStream *wrapper_stream; - CamelSimpleDataWrapper *wrapper; - GByteArray *array; - gint len; - - wrapper_stream = CAMEL_SIMPLE_DATA_WRAPPER_STREAM (stream); - wrapper = wrapper_stream->wrapper; - g_return_val_if_fail (wrapper != NULL, -1); - array = wrapper->byte_array; - - len = MIN (n, array->len - wrapper_stream->current_position); - if (len > 0) { - memcpy (buffer, array->data, len); - wrapper_stream->current_position += len; - return len; - } else { - return 0; - } -} - -static gint -write (CamelStream *stream, - const gchar *buffer, - gint n) -{ - CamelSimpleDataWrapperStream *wrapper_stream; - CamelSimpleDataWrapper *wrapper; - GByteArray *array; - gint len; - const gchar *buffer_next; - gint left; - - wrapper_stream = CAMEL_SIMPLE_DATA_WRAPPER_STREAM (stream); - wrapper = wrapper_stream->wrapper; - g_return_val_if_fail (wrapper != NULL, -1); - array = wrapper->byte_array; - - len = MIN (n, array->len - wrapper_stream->current_position); - if (len > 0) { - memcpy (array->data, buffer, len); - buffer_next = buffer + len; - left = n - len; - } else { - /* If we are past the end of the array, fill with zeros. */ - if (wrapper_stream->current_position > array->len) { - gint saved_length; - - saved_length = array->len; - g_byte_array_set_size - (array, wrapper_stream->current_position); - memset (array->data + saved_length, - 0, - (wrapper_stream->current_position - - saved_length)); - } - - buffer_next = buffer; - left = n; - } - - if (n > 0) - g_byte_array_append (array, buffer_next, left); - - wrapper_stream->current_position += n; - return n; -} - -static void -flush (CamelStream *stream) -{ - /* No op, as we don't do any buffering. */ -} - -static gint -available (CamelStream *stream) -{ - CamelSimpleDataWrapperStream *wrapper_stream; - CamelSimpleDataWrapper *wrapper; - GByteArray *array; - gint available; - - wrapper_stream = CAMEL_SIMPLE_DATA_WRAPPER_STREAM (stream); - wrapper = wrapper_stream->wrapper; - g_return_val_if_fail (wrapper != NULL, -1); - array = wrapper->byte_array; - - available = array->len - wrapper_stream->current_position; - return MAX (available, 0); -} - -static gboolean -eos (CamelStream *stream) -{ - if (available (stream) > 0) - return TRUE; - else - return FALSE; -} - -static void -close (CamelStream *stream) -{ - /* Nothing to do, we have no associated file descriptor. */ -} - -static gint -seek (CamelSeekableStream *stream, - gint offset, - CamelStreamSeekPolicy policy) -{ - CamelSimpleDataWrapperStream *wrapper_stream; - gint new_position; - - wrapper_stream = CAMEL_SIMPLE_DATA_WRAPPER_STREAM (stream); - - switch (policy) { - case CAMEL_STREAM_SET: - new_position = offset; - break; - case CAMEL_STREAM_CUR: - new_position = wrapper_stream->current_position + offset; - break; - case CAMEL_STREAM_END: - new_position = wrapper_stream->wrapper->byte_array->len; - break; - default: - g_warning ("Unknown CamelStreamSeekPolicy %d.", policy); - return -1; - } - - wrapper_stream->current_position = new_position; - return new_position; -} - - -/* This handles destruction of the associated CamelDataWrapper. */ -/* Hm, this should never happen though, because we gtk_object_ref() the - wrapper. */ -static void -wrapper_destroy_cb (GtkObject *object, - gpointer data) -{ - CamelSimpleDataWrapperStream *stream; - - g_warning ("CamelSimpleDataWrapperStream: associated CamelSimpleDataWrapper was destroyed."); - stream = CAMEL_SIMPLE_DATA_WRAPPER_STREAM (object); - stream->wrapper = NULL; -} - - -/* GtkObject methods. */ - -static void -destroy (GtkObject *object) -{ - CamelSimpleDataWrapperStream *stream; - - stream = CAMEL_SIMPLE_DATA_WRAPPER_STREAM (object); - - gtk_object_unref (GTK_OBJECT (stream->wrapper)); - - if (GTK_OBJECT_CLASS (parent_class)->destroy != NULL) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - - -static void -class_init (CamelSimpleDataWrapperStreamClass *klass) -{ - GtkObjectClass *object_class; - - object_class = (GtkObjectClass*) klass; - - parent_class = gtk_type_class (camel_stream_get_type ()); -} - -static void -init (CamelSimpleDataWrapperStream *simple_data_wrapper_stream) -{ - simple_data_wrapper_stream->current_position = 0; -} - - -GtkType -camel_simple_data_wrapper_stream_get_type (void) -{ - static GtkType type = 0; - - if (type == 0) { - static const GtkTypeInfo info = { - "CamelSimpleDataWrapperStream", - sizeof (CamelSimpleDataWrapperStream), - sizeof (CamelSimpleDataWrapperStreamClass), - (GtkClassInitFunc) class_init, - (GtkObjectInitFunc) init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - type = gtk_type_unique (camel_stream_get_type (), &info); - } - - return type; -} - -void -camel_simple_data_wrapper_stream_construct (CamelSimpleDataWrapperStream *stream, - CamelSimpleDataWrapper *wrapper) -{ - g_return_if_fail (stream != NULL); - g_return_if_fail (CAMEL_IS_SIMPLE_DATA_WRAPPER_STREAM (stream)); - g_return_if_fail (wrapper != NULL); - g_return_if_fail (CAMEL_IS_SIMPLE_DATA_WRAPPER (wrapper)); - - gtk_object_ref (GTK_OBJECT (wrapper)); - stream->wrapper = wrapper; - gtk_signal_connect (GTK_OBJECT (wrapper), "destroy", - wrapper_destroy_cb, stream); -} - -CamelStream * -camel_simple_data_wrapper_stream_new (CamelSimpleDataWrapper *wrapper) -{ - CamelStream *stream; - - g_return_val_if_fail (wrapper != NULL, NULL); - g_return_val_if_fail (CAMEL_IS_SIMPLE_DATA_WRAPPER (wrapper), NULL); - - stream = gtk_type_new (camel_simple_data_wrapper_stream_get_type ()); - - camel_simple_data_wrapper_stream_construct - (CAMEL_SIMPLE_DATA_WRAPPER_STREAM (stream), wrapper); - - return stream; -} |