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-rw-r--r--camel/camel-stream-filter.c355
1 files changed, 0 insertions, 355 deletions
diff --git a/camel/camel-stream-filter.c b/camel/camel-stream-filter.c
deleted file mode 100644
index 3aaa1a20ed..0000000000
--- a/camel/camel-stream-filter.c
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@@ -1,355 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
-/*
- * Copyright (C) 2000 Helix Code Inc.
- *
- * Authors: Michael Zucchi <notzed@helixcode.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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 Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include "camel-stream-filter.h"
-
-struct _filter {
- struct _filter *next;
- int id;
- CamelMimeFilter *filter;
-};
-
-struct _CamelStreamFilterPrivate {
- struct _filter *filters;
- int filterid; /* next filter id */
-
- char *realbuffer; /* buffer - READ_PAD */
- char *buffer; /* READ_SIZE bytes */
-
- char *filtered; /* the filtered data */
- size_t filteredlen;
-
- int last_was_read; /* was the last op read or write? */
-};
-
-#define READ_PAD (64) /* bytes padded before buffer */
-#define READ_SIZE (4096)
-
-#define _PRIVATE(o) (((CamelStreamFilter *)(o))->priv)
-
-static void camel_stream_filter_class_init (CamelStreamFilterClass *klass);
-static void camel_stream_filter_init (CamelStreamFilter *obj);
-
-static int do_read (CamelStream *stream, char *buffer, unsigned int n);
-static int do_write (CamelStream *stream, const char *buffer, unsigned int n);
-static int do_flush (CamelStream *stream);
-static int do_close (CamelStream *stream);
-static gboolean do_eos (CamelStream *stream);
-static int do_reset (CamelStream *stream);
-
-static CamelStreamClass *camel_stream_filter_parent;
-
-enum SIGNALS {
- LAST_SIGNAL
-};
-
-static guint signals[LAST_SIGNAL] = { 0 };
-
-guint
-camel_stream_filter_get_type (void)
-{
- static guint type = 0;
-
- if (!type) {
- GtkTypeInfo type_info = {
- "CamelStreamFilter",
- sizeof (CamelStreamFilter),
- sizeof (CamelStreamFilterClass),
- (GtkClassInitFunc) camel_stream_filter_class_init,
- (GtkObjectInitFunc) camel_stream_filter_init,
- (GtkArgSetFunc) NULL,
- (GtkArgGetFunc) NULL
- };
-
- type = gtk_type_unique (camel_stream_get_type (), &type_info);
- }
-
- return type;
-}
-
-static void
-finalise(GtkObject *o)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)o;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- struct _filter *fn, *f;
-
- f = p->filters;
- while (f) {
- fn = f->next;
- gtk_object_unref((GtkObject *)f->filter);
- g_free(f);
- f = fn;
- }
- g_free(p->realbuffer);
- g_free(p);
- gtk_object_unref((GtkObject *)filter->source);
-
- GTK_OBJECT_CLASS (camel_stream_filter_parent)->finalize (o);
-}
-
-
-static void
-camel_stream_filter_class_init (CamelStreamFilterClass *klass)
-{
- GtkObjectClass *object_class = (GtkObjectClass *) klass;
- CamelStreamClass *camel_stream_class = (CamelStreamClass *) klass;
-
- camel_stream_filter_parent = gtk_type_class (camel_stream_get_type ());
-
- object_class->finalize = finalise;
-
- camel_stream_class->read = do_read;
- camel_stream_class->write = do_write;
- camel_stream_class->flush = do_flush;
- camel_stream_class->flush = do_close;
- camel_stream_class->eos = do_eos;
- camel_stream_class->reset = do_reset;
-
- gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
-}
-
-static void
-camel_stream_filter_init (CamelStreamFilter *obj)
-{
- struct _CamelStreamFilterPrivate *p;
-
- _PRIVATE(obj) = p = g_malloc0(sizeof(*p));
- p->realbuffer = g_malloc(READ_SIZE + READ_PAD);
- p->buffer = p->realbuffer + READ_PAD;
- p->last_was_read = TRUE;
-}
-
-/**
- * camel_stream_filter_new:
- *
- * Create a new CamelStreamFilter object.
- *
- * Return value: A new CamelStreamFilter object.
- **/
-CamelStreamFilter *
-camel_stream_filter_new_with_stream(CamelStream *stream)
-{
- CamelStreamFilter *new = CAMEL_STREAM_FILTER ( gtk_type_new (camel_stream_filter_get_type ()));
-
- new->source = stream;
- gtk_object_ref ((GtkObject *)stream);
-
- return new;
-}
-
-
-/**
- * camel_stream_filter_add:
- * @filter: Initialised CamelStreamFilter.
- * @mf: Filter to perform processing on stream.
- *
- * Add a new CamelMimeFilter to execute during the processing of this
- * stream. Each filter added is processed after the previous one.
- *
- * Note that a filter should only be added to a single stream
- * at a time, otherwise unpredictable results may occur.
- *
- * Return value: A filter id for this CamelStreamFilter.
- **/
-int
-camel_stream_filter_add(CamelStreamFilter *filter, CamelMimeFilter *mf)
-{
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- struct _filter *fn, *f;
-
- fn = g_malloc(sizeof(*fn));
- fn->id = p->filterid++;
- fn->filter = mf;
- gtk_object_ref((GtkObject *)mf);
-
- /* sure, we could use a GList, but we wouldn't save much */
- f = (struct _filter *)&p->filters;
- while (f->next)
- f = f->next;
- f->next = fn;
- fn->next = NULL;
- return fn->id;
-}
-
-/**
- * camel_stream_filter_remove:
- * @filter: Initialised CamelStreamFilter.
- * @id: Filter id, as returned from camel_stream_filter_add().
- *
- * Remove a processing filter from the stream, by id.
- **/
-void
-camel_stream_filter_remove(CamelStreamFilter *filter, int id)
-{
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- struct _filter *fn, *f;
-
- f = (struct _filter *)&p->filters;
- while (f && f->next) {
- fn = f->next;
- if (fn->id == id) {
- f->next = fn->next;
- gtk_object_unref((GtkObject *)fn->filter);
- g_free(fn);
- }
- f = f->next;
- }
-}
-
-static int
-do_read (CamelStream *stream, char *buffer, unsigned int n)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)stream;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- int size;
- struct _filter *f;
-
- p->last_was_read = TRUE;
-
- if (p->filteredlen<=0) {
- int presize = READ_SIZE;
-
- size = camel_stream_read(filter->source, p->buffer, READ_SIZE);
- if (size<=0) {
- /* this is somewhat untested */
- if (camel_stream_eos(filter->source)) {
- f = p->filters;
- p->filtered = p->buffer;
- p->filteredlen = 0;
- while (f) {
- camel_mime_filter_complete(f->filter, p->filtered, p->filteredlen, presize, &p->filtered, &p->filteredlen, &presize);
- f = f->next;
- }
- size = p->filteredlen;
- }
- if (size<=0)
- return size;
- } else {
- f = p->filters;
- p->filtered = p->buffer;
- p->filteredlen = size;
- while (f) {
- camel_mime_filter_filter(f->filter, p->filtered, p->filteredlen, presize, &p->filtered, &p->filteredlen, &presize);
- f = f->next;
- }
- }
- }
-
- size = MIN(n, p->filteredlen);
- memcpy(buffer, p->filtered, size);
- p->filteredlen -= size;
- p->filtered += size;
-
- return size;
-}
-
-static int
-do_write (CamelStream *stream, const char *buf, unsigned int n)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)stream;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- struct _filter *f;
- int presize;
- char *buffer = (char *)buf;
-
- p->last_was_read = FALSE;
-
- f = p->filters;
- presize = 0;
- while (f) {
- camel_mime_filter_filter(f->filter, buffer, n, presize, &buffer, &n, &presize);
- f = f->next;
- }
-
- return camel_stream_write(filter->source, buffer, n);
-}
-
-static int
-do_flush (CamelStream *stream)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)stream;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- struct _filter *f;
- char *buffer;
- int len, presize;
-
- if (p->last_was_read) {
- g_warning("Flushing a filter stream without writing to it");
- return 0;
- }
-
- buffer = "";
- len = 0;
- presize = 0;
- f = p->filters;
- while (f) {
- camel_mime_filter_complete(f->filter, buffer, len, presize, &buffer, &len, &presize);
- f = f->next;
- }
- if (len>0 && camel_stream_write(filter->source, buffer, len) == -1)
- return -1;
- return camel_stream_flush(filter->source);
-}
-
-static int
-do_close (CamelStream *stream)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)stream;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
-
- if (!p->last_was_read) {
- do_flush(stream);
- }
- return camel_stream_close(filter->source);
-}
-
-static gboolean
-do_eos (CamelStream *stream)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)stream;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
-
- if (p->filteredlen >0)
- return FALSE;
-
- return camel_stream_eos(filter->source);
-}
-
-static int
-do_reset (CamelStream *stream)
-{
- CamelStreamFilter *filter = (CamelStreamFilter *)stream;
- struct _CamelStreamFilterPrivate *p = _PRIVATE(filter);
- struct _filter *f;
-
- p->filteredlen = 0;
-
- /* and reset filters */
- f = p->filters;
- while (f) {
- camel_mime_filter_reset(f->filter);
- f = f->next;
- }
-
- return camel_stream_reset(filter->source);
-}
-