dovecot: Added increasing file_seq field to list index.

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot/rev/e562c6359cd1
changeset: 6086:e562c6359cd1
user:      Timo Sirainen <tss at iki.fi>
date:      Thu Jul 19 01:55:14 2007 +0300
description:
Added increasing file_seq field to list index.

diffstat:

3 files changed, 6 insertions(+), 2 deletions(-)
src/lib-index/mailbox-list-index-private.h |    1 +
src/lib-index/mailbox-list-index-sync.c    |    1 +
src/lib-index/mailbox-list-index.c         |    6 ++++--

diffs (51 lines):

diff -r cc8b6e73e830 -r e562c6359cd1 src/lib-index/mailbox-list-index-private.h
--- a/src/lib-index/mailbox-list-index-private.h	Thu Jul 19 00:29:35 2007 +0300
+++ b/src/lib-index/mailbox-list-index-private.h	Thu Jul 19 01:55:14 2007 +0300
@@ -15,6 +15,7 @@ struct mailbox_list_index_header {
 	uint8_t minor_version;
 	uint8_t unused[2];
 
+	uint32_t file_seq;
 	uint32_t header_size;
 	uint32_t uid_validity;
 
diff -r cc8b6e73e830 -r e562c6359cd1 src/lib-index/mailbox-list-index-sync.c
--- a/src/lib-index/mailbox-list-index-sync.c	Thu Jul 19 00:29:35 2007 +0300
+++ b/src/lib-index/mailbox-list-index-sync.c	Thu Jul 19 01:55:14 2007 +0300
@@ -987,6 +987,7 @@ static int mailbox_list_index_compress(s
 		return -1;
 
 	/* reset header */
+	ctx->hdr.file_seq++;
 	ctx->hdr.used_space = sizeof(ctx->hdr);
 	ctx->hdr.deleted_space = 0;
 
diff -r cc8b6e73e830 -r e562c6359cd1 src/lib-index/mailbox-list-index.c
--- a/src/lib-index/mailbox-list-index.c	Thu Jul 19 00:29:35 2007 +0300
+++ b/src/lib-index/mailbox-list-index.c	Thu Jul 19 01:55:14 2007 +0300
@@ -197,13 +197,15 @@ static int mailbox_list_index_map_area(s
 }
 
 static void
-mailbox_list_index_init_header(struct mailbox_list_index_header *hdr,
+mailbox_list_index_init_header(struct mailbox_list_index *index,
+			       struct mailbox_list_index_header *hdr,
 			       uint32_t uid_validity)
 {
 	memset(hdr, 0, sizeof(*hdr));
 	hdr->major_version = MAILBOX_LIST_INDEX_MAJOR_VERSION;
 	hdr->minor_version = MAILBOX_LIST_INDEX_MINOR_VERSION;
 
+	hdr->file_seq = index->hdr == NULL ? 1 : index->hdr->file_seq + 1;
 	hdr->header_size = sizeof(*hdr);
 	hdr->used_space = hdr->header_size;
 
@@ -262,7 +264,7 @@ int mailbox_list_index_file_create(struc
 		}
 	}
 
-	mailbox_list_index_init_header(&hdr, uid_validity);
+	mailbox_list_index_init_header(index, &hdr, uid_validity);
 	if (write_full(fd, &hdr, sizeof(hdr)) < 0) {
 		mailbox_list_index_set_syscall_error(index, "write_full()");
 		(void)file_dotlock_delete(&dotlock);