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-rw-r--r--mail/em-vfs-stream.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/mail/em-vfs-stream.c b/mail/em-vfs-stream.c
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index 290ea86a4d..0000000000
--- a/mail/em-vfs-stream.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
- *
- * Authors: Michael Zucchi <notzed@ximian.com>
- *
- * Copyright 2004 Ximian, Inc. (www.ximian.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * 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., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- * A GnomeVFS to CamelStream mapper.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-
-#include <libgnomevfs/gnome-vfs.h>
-
-#include "em-vfs-stream.h"
-
-#ifndef EINPROGRESS
-#define EINPROGRESS EAGAIN
-#endif
-#ifndef ELOOP
-#define ELOOP EIO
-#endif
-
-#define LOG_STREAM
-
-#define d(x)
-
-#define EMVS_CLASS(x) ((EMVFSStreamClass *)(((CamelObject *)(x))->klass))
-
-static CamelStreamClass *parent_class = NULL;
-
-static void
-em_vfs_stream_init (CamelObject *object)
-{
- /*EMVFSStream *emvfs = (EMVFSStream *)object;*/
-}
-
-static void
-em_vfs_stream_finalize (CamelObject *object)
-{
- EMVFSStream *emvfs = (EMVFSStream *)object;
-
- if (emvfs->handle)
- gnome_vfs_close(emvfs->handle);
-}
-
-static void
-emvfs_set_errno(GnomeVFSResult res)
-{
- switch(res) {
- case GNOME_VFS_OK:
- g_warning("em-vfs-stream: calling set_errno with no error");
- break;
- case GNOME_VFS_ERROR_NOT_FOUND:
- case GNOME_VFS_ERROR_HOST_NOT_FOUND:
- case GNOME_VFS_ERROR_INVALID_HOST_NAME:
- case GNOME_VFS_ERROR_HOST_HAS_NO_ADDRESS:
- case GNOME_VFS_ERROR_SERVICE_NOT_AVAILABLE:
- errno = ENOENT;
- break;
- case GNOME_VFS_ERROR_GENERIC:
- case GNOME_VFS_ERROR_INTERNAL:
- case GNOME_VFS_ERROR_IO:
- case GNOME_VFS_ERROR_EOF: /* will be caught by read before here anyway */
- case GNOME_VFS_ERROR_SERVICE_OBSOLETE:
- case GNOME_VFS_ERROR_PROTOCOL_ERROR:
- default:
- errno = EIO;
- break;
- case GNOME_VFS_ERROR_BAD_PARAMETERS:
- case GNOME_VFS_ERROR_NOT_SUPPORTED:
- case GNOME_VFS_ERROR_INVALID_URI:
- case GNOME_VFS_ERROR_NOT_OPEN:
- case GNOME_VFS_ERROR_INVALID_OPEN_MODE:
- case GNOME_VFS_ERROR_NOT_SAME_FILE_SYSTEM:
- errno = EINVAL;
- break;
- case GNOME_VFS_ERROR_CORRUPTED_DATA: /* not sure about these */
- case GNOME_VFS_ERROR_WRONG_FORMAT:
- case GNOME_VFS_ERROR_BAD_FILE:
- errno = EBADF;
- break;
- case GNOME_VFS_ERROR_TOO_BIG:
- errno = E2BIG;
- break;
- case GNOME_VFS_ERROR_NO_SPACE:
- errno = ENOSPC;
- break;
- case GNOME_VFS_ERROR_READ_ONLY:
- case GNOME_VFS_ERROR_READ_ONLY_FILE_SYSTEM:
- errno = EROFS;
- break;
- case GNOME_VFS_ERROR_TOO_MANY_OPEN_FILES:
- errno = EMFILE;
- break;
- case GNOME_VFS_ERROR_NOT_A_DIRECTORY:
- errno = ENOTDIR;
- break;
- case GNOME_VFS_ERROR_IN_PROGRESS:
- errno = EINPROGRESS;
- break;
- case GNOME_VFS_ERROR_INTERRUPTED:
- errno = EINTR;
- break;
- case GNOME_VFS_ERROR_FILE_EXISTS:
- errno = EEXIST;
- case GNOME_VFS_ERROR_LOOP:
- errno = ELOOP;
- break;
- case GNOME_VFS_ERROR_ACCESS_DENIED:
- case GNOME_VFS_ERROR_NOT_PERMITTED:
- case GNOME_VFS_ERROR_LOGIN_FAILED:
- errno = EPERM;
- break;
- case GNOME_VFS_ERROR_IS_DIRECTORY:
- case GNOME_VFS_ERROR_DIRECTORY_NOT_EMPTY: /* ?? */
- errno = EISDIR;
- break;
- case GNOME_VFS_ERROR_NO_MEMORY:
- errno = ENOMEM;
- break;
- case GNOME_VFS_ERROR_CANCELLED:
- errno = EINTR;
- break;
- case GNOME_VFS_ERROR_DIRECTORY_BUSY:
- errno = EBUSY;
- break;
- case GNOME_VFS_ERROR_TOO_MANY_LINKS:
- errno = EMLINK;
- break;
- case GNOME_VFS_ERROR_NAME_TOO_LONG:
- errno = ENAMETOOLONG;
- break;
- }
-}
-
-static ssize_t
-emvfs_read(CamelStream *stream, char *buffer, size_t n)
-{
- EMVFSStream *emvfs = EM_VFS_STREAM (stream);
- GnomeVFSFileSize count;
- GnomeVFSResult res;
-
- if (emvfs->handle == NULL) {
- errno = EINVAL;
- return -1;
- }
-
- /* TODO: handle camel cancellation? */
-
- res = gnome_vfs_read(emvfs->handle, buffer, n, &count);
- if (res == GNOME_VFS_OK)
- return (ssize_t)count;
- else if (res == GNOME_VFS_ERROR_EOF) {
- stream->eos = TRUE;
- return 0;
- }
-
- emvfs_set_errno(res);
-
- return -1;
-}
-
-static ssize_t
-emvfs_write(CamelStream *stream, const char *buffer, size_t n)
-{
- EMVFSStream *emvfs = EM_VFS_STREAM (stream);
- GnomeVFSFileSize count;
- GnomeVFSResult res;
-
- if (emvfs->handle == NULL) {
- errno = EINVAL;
- return -1;
- }
-
- res = gnome_vfs_write(emvfs->handle, buffer, n, &count);
- if (res == GNOME_VFS_OK)
- return (ssize_t)count;
-
- emvfs_set_errno(res);
-
- return -1;
-}
-
-static int
-emvfs_close(CamelStream *stream)
-{
- EMVFSStream *emvfs = EM_VFS_STREAM (stream);
- GnomeVFSResult res;
-
- if (emvfs->handle == NULL) {
- errno = EINVAL;
- return -1;
- }
-
- res = gnome_vfs_close(emvfs->handle);
- emvfs->handle = NULL;
- if (res == GNOME_VFS_OK)
- return 0;
-
- emvfs_set_errno(res);
-
- return -1;
-}
-
-static off_t
-emvfs_seek(CamelSeekableStream *stream, off_t offset, CamelStreamSeekPolicy policy)
-{
- EMVFSStream *emvfs = EM_VFS_STREAM (stream);
- GnomeVFSSeekPosition vpolicy;
- GnomeVFSFileSize pos;
- GnomeVFSResult res;
-
- if (emvfs->handle == NULL) {
- errno = EINVAL;
- return -1;
- }
-
- switch (policy) {
- case CAMEL_STREAM_SET:
- default:
- vpolicy = GNOME_VFS_SEEK_START;
- break;
- case CAMEL_STREAM_CUR:
- vpolicy = GNOME_VFS_SEEK_CURRENT;
- break;
- case CAMEL_STREAM_END:
- vpolicy = GNOME_VFS_SEEK_END;
- break;
- }
-
- if ( (res = gnome_vfs_seek(emvfs->handle, vpolicy, offset)) == GNOME_VFS_OK
- && (res = gnome_vfs_tell(emvfs->handle, &pos)) == GNOME_VFS_OK)
- return pos;
-
- emvfs_set_errno(res);
-
- return -1;
-}
-
-static off_t
-emvfs_tell(CamelSeekableStream *stream)
-{
- EMVFSStream *emvfs = EM_VFS_STREAM (stream);
- GnomeVFSFileSize pos;
- GnomeVFSResult res;
-
- if (emvfs->handle == NULL) {
- errno = EINVAL;
- return -1;
- }
-
- if ((res = gnome_vfs_tell(emvfs->handle, &pos)) == GNOME_VFS_OK)
- return pos;
-
- emvfs_set_errno(res);
-
- return -1;
-}
-
-static void
-em_vfs_stream_class_init (EMVFSStreamClass *klass)
-{
- ((CamelStreamClass *)klass)->read = emvfs_read;
- ((CamelStreamClass *)klass)->write = emvfs_write;
- ((CamelStreamClass *)klass)->close = emvfs_close;
-
- ((CamelSeekableStreamClass *)klass)->seek = emvfs_seek;
- ((CamelSeekableStreamClass *)klass)->tell = emvfs_tell;
- /* set_bounds? */
-}
-
-CamelType
-em_vfs_stream_get_type (void)
-{
- static CamelType type = CAMEL_INVALID_TYPE;
-
- if (type == CAMEL_INVALID_TYPE) {
- parent_class = (CamelStreamClass *)camel_seekable_stream_get_type();
- type = camel_type_register ((CamelType)parent_class,
- "EMVFSStream",
- sizeof (EMVFSStream),
- sizeof (EMVFSStreamClass),
- (CamelObjectClassInitFunc) em_vfs_stream_class_init,
- NULL,
- (CamelObjectInitFunc) em_vfs_stream_init,
- (CamelObjectFinalizeFunc) em_vfs_stream_finalize);
- }
-
- return type;
-}
-
-/**
- * emvfs_stream_new:
- * @handle:
- *
- * Create a new camel stream from a GnomeVFS handle. The camel stream
- * will own the handle from now on.
- *
- * Return value: A CamelStream that will talk to @handle. This function cannot fail.
- **/
-EMVFSStream *
-emvfs_stream_new(GnomeVFSHandle *handle)
-{
- EMVFSStream *emvfs;
-
- emvfs = (EMVFSStream *)camel_object_new(em_vfs_stream_get_type());
- emvfs->handle = handle;
-
- return emvfs;
-}