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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@helixcode.com>
*
* Copyright 2000 Helix Code, Inc. (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 Street #330, Boston, MA 02111-1307, USA.
*
*/
#include <config.h>
#include "camel-imap-stream.h"
#include <sys/types.h>
#include <errno.h>
static CamelStreamClass *parent_class = NULL;
/* Returns the class for a CamelImapStream */
#define CIS_CLASS(so) CAMEL_IMAP_STREAM_CLASS (GTK_OBJECT(so)->klass)
static ssize_t stream_read (CamelStream *stream, char *buffer, size_t n);
static int stream_reset (CamelStream *stream);
static gboolean stream_eos (CamelStream *stream);
static void finalize (GtkObject *object);
static void
camel_imap_stream_class_init (CamelImapStreamClass *camel_imap_stream_class)
{
CamelStreamClass *camel_stream_class =
CAMEL_STREAM_CLASS (camel_imap_stream_class);
GtkObjectClass *gtk_object_class =
GTK_OBJECT_CLASS (camel_imap_stream_class);
parent_class = gtk_type_class (camel_stream_get_type ());
/* virtual method overload */
camel_stream_class->read = stream_read;
camel_stream_class->reset = stream_reset;
camel_stream_class->eos = stream_eos;
gtk_object_class->finalize = finalize;
}
static void
camel_imap_stream_init (gpointer object, gpointer klass)
{
CamelImapStream *imap_stream = CAMEL_IMAP_STREAM (object);
imap_stream->cache = NULL;
imap_stream->cache_ptr = NULL;
}
GtkType
camel_imap_stream_get_type (void)
{
static GtkType camel_imap_stream_type = 0;
if (!camel_imap_stream_type) {
GtkTypeInfo camel_imap_stream_info =
{
"CamelImapStream",
sizeof (CamelImapStream),
sizeof (CamelImapStreamClass),
(GtkClassInitFunc) camel_imap_stream_class_init,
(GtkObjectInitFunc) camel_imap_stream_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_imap_stream_type = gtk_type_unique (camel_stream_get_type (), &camel_imap_stream_info);
}
return camel_imap_stream_type;
}
CamelStream *
camel_imap_stream_new (CamelImapFolder *folder, char *command)
{
CamelImapStream *imap_stream;
imap_stream = gtk_type_new (camel_imap_stream_get_type ());
imap_stream->folder = folder;
gtk_object_ref(GTK_OBJECT (imap_stream->folder));
imap_stream->command = g_strdup(command);
return CAMEL_STREAM (imap_stream);
}
static void
finalize (GtkObject *object)
{
CamelImapStream *imap_stream = CAMEL_IMAP_STREAM (object);
g_free(imap_stream->cache);
g_free(imap_stream->command);
if (imap_stream->folder)
gtk_object_unref(GTK_OBJECT (imap_stream->folder));
GTK_OBJECT_CLASS (parent_class)->finalize (object);
}
static ssize_t
stream_read (CamelStream *stream, char *buffer, size_t n)
{
ssize_t nread;
/* do we want to do any IMAP specific parsing in here? If not, maybe rename to camel-stream-cache? */
CamelImapStream *imap_stream = CAMEL_IMAP_STREAM (stream);
if (!imap_stream->cache) {
/* We need to send the IMAP command since this is our first fetch */
CamelFolder *folder = CAMEL_FOLDER (imap_stream->folder);
gint status;
status = camel_imap_command_extended(CAMEL_IMAP_STORE (folder->parent_store),
CAMEL_FOLDER (imap_stream->folder),
&imap_stream->cache, "%s",
imap_stream->command);
if (status != CAMEL_IMAP_OK) {
/* we got an error, dump this stuff */
g_free(imap_stream->cache);
imap_stream->cache = NULL;
return -1;
}
/* we don't need the folder anymore... */
gtk_object_unref(GTK_OBJECT (imap_stream->folder));
imap_stream->cache_ptr = imap_stream->cache;
}
/* we've already read this stream, so return whats in the cache */
nread = MIN (n, strlen(imap_stream->cache_ptr));
if (nread > 0) {
memcpy(buffer, imap_stream->cache_ptr, nread);
imap_stream->cache_ptr += nread;
} else {
nread = -1;
}
return nread;
}
static int
stream_reset (CamelStream *stream)
{
CamelImapStream *imap_stream = CAMEL_IMAP_STREAM (stream);
imap_stream->cache_ptr = imap_stream->cache;
return 1;
}
static gboolean
stream_eos (CamelStream *stream)
{
CamelImapStream *imap_stream = CAMEL_IMAP_STREAM (stream);
return (imap_stream->cache_ptr && strlen(imap_stream->cache_ptr));
}
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