diff options
Diffstat (limited to 'camel/providers/imap/camel-imap-summary.c')
| -rw-r--r-- | camel/providers/imap/camel-imap-summary.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/camel/providers/imap/camel-imap-summary.c b/camel/providers/imap/camel-imap-summary.c new file mode 100644 index 0000000000..ebdf8b9842 --- /dev/null +++ b/camel/providers/imap/camel-imap-summary.c @@ -0,0 +1,147 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Copyright (C) 2000 Helix Code Inc. + * + * Authors: + * Michael Zucchi <notzed@helixcode.com> + * Dan Winship <danw@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 + */ + +#include "camel-imap-summary.h" +#include <camel/camel-mime-message.h> + +#include <sys/stat.h> +#include <sys/uio.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> + +#define CAMEL_IMAP_SUMMARY_VERSION (0x1000) + +static int summary_header_load (CamelFolderSummary *, FILE *); +static int summary_header_save (CamelFolderSummary *, FILE *); + +static void camel_imap_summary_class_init (CamelImapSummaryClass *klass); +static void camel_imap_summary_init (CamelImapSummary *obj); + +static CamelFolderSummaryClass *camel_imap_summary_parent; + +CamelType +camel_imap_summary_get_type (void) +{ + static CamelType type = CAMEL_INVALID_TYPE; + + if (type == CAMEL_INVALID_TYPE) { + type = camel_type_register( + camel_folder_summary_get_type(), "CamelImapSummary", + sizeof (CamelImapSummary), + sizeof (CamelImapSummaryClass), + (CamelObjectClassInitFunc) camel_imap_summary_class_init, + NULL, + (CamelObjectInitFunc) camel_imap_summary_init, + NULL); + } + + return type; +} + +static void +camel_imap_summary_class_init (CamelImapSummaryClass *klass) +{ + CamelFolderSummaryClass *cfs_class = (CamelFolderSummaryClass *) klass; + + camel_imap_summary_parent = CAMEL_FOLDER_SUMMARY_CLASS (camel_type_get_global_classfuncs (camel_folder_summary_get_type())); + + cfs_class->summary_header_load = summary_header_load; + cfs_class->summary_header_save = summary_header_save; +} + +static void +camel_imap_summary_init (CamelImapSummary *obj) +{ + CamelFolderSummary *s = (CamelFolderSummary *)obj; + + /* subclasses need to set the right instance data sizes */ + s->message_info_size = sizeof(CamelImapMessageInfo); + s->content_info_size = sizeof(CamelImapMessageContentInfo); + + /* and a unique file version */ + s->version += CAMEL_IMAP_SUMMARY_VERSION; +} + +/** + * camel_imap_summary_new: + * @filename: the file to store the summary in. + * @validity: the current UIDVALIDITY value of the folder + * + * This will create a new CamelImapSummary object and read in the + * summary data from disk, if it exists and has the right UIDVALIDITY + * value. + * + * Return value: A new CamelImapSummary object. + **/ +CamelFolderSummary * +camel_imap_summary_new (const char *filename, guint32 validity) +{ + CamelFolderSummary *summary = CAMEL_FOLDER_SUMMARY ( + camel_object_new (camel_imap_summary_get_type ())); + CamelImapSummary *imap_summary = (CamelImapSummary *)summary; + + camel_folder_summary_set_build_content (summary, FALSE); + camel_folder_summary_set_filename (summary, filename); + + if (camel_folder_summary_load (summary) == -1) { + if (errno == ENOENT) { + imap_summary->validity = validity; + return summary; + } else { + camel_object_unref ((CamelObject *)summary); + return NULL; + } + } + if (imap_summary->validity != validity) { + camel_folder_summary_clear (summary); + imap_summary->validity = validity; + } + + return summary; +} + + +static int +summary_header_load (CamelFolderSummary *s, FILE *in) +{ + CamelImapSummary *ims = CAMEL_IMAP_SUMMARY (s); + + if (camel_imap_summary_parent->summary_header_load (s, in) == -1) + return -1; + + return camel_folder_summary_decode_uint32 (in, &ims->validity); +} + +static int +summary_header_save (CamelFolderSummary *s, FILE *out) +{ + CamelImapSummary *ims = CAMEL_IMAP_SUMMARY(s); + + if (camel_imap_summary_parent->summary_header_save (s, out) == -1) + return -1; + + return camel_folder_summary_encode_uint32 (out, ims->validity); +} |