dovecot-2.0: Mail index view syncs: Simplify code for getting li...
dovecot at dovecot.org
dovecot at dovecot.org
Tue Jul 14 02:58:04 EEST 2009
details: http://hg.dovecot.org/dovecot-2.0/rev/8c17eb6c28d6
changeset: 9621:8c17eb6c28d6
user: Timo Sirainen <tss at iki.fi>
date: Mon Jul 13 19:42:01 2009 -0400
description:
Mail index view syncs: Simplify code for getting list of expunges.
diffstat:
1 file changed, 16 insertions(+), 72 deletions(-)
src/lib-index/mail-index-view-sync.c | 88 ++++++----------------------------
diffs (119 lines):
diff -r a0b8777ac846 -r 8c17eb6c28d6 src/lib-index/mail-index-view-sync.c
--- a/src/lib-index/mail-index-view-sync.c Mon Jul 13 19:41:23 2009 -0400
+++ b/src/lib-index/mail-index-view-sync.c Mon Jul 13 19:42:01 2009 -0400
@@ -40,71 +40,6 @@ struct mail_index_view_sync_ctx {
unsigned int log_was_lost:1;
unsigned int hidden:1;
};
-
-static int
-mail_transaction_log_sort_expunges(ARRAY_TYPE(seq_range) *expunges,
- const struct seq_range *src, size_t src_size)
-{
- /* Note that all the sequences are actually still UIDs at this point */
- const struct seq_range *src_end;
- struct seq_range *dest, new_exp;
- unsigned int first, i, dest_count;
-
- i_assert(src_size % sizeof(*src) == 0);
-
- /* @UNSAFE */
- dest = array_get_modifiable(expunges, &dest_count);
- if (dest_count == 0) {
- array_append(expunges, src, src_size / sizeof(*src));
- return 0;
- }
-
- src_end = CONST_PTR_OFFSET(src, src_size);
- for (i = 0; src != src_end; src++) {
- /* src[] must be sorted. */
- if (src->seq1 > src->seq2 ||
- (src+1 != src_end && src->seq2 >= src[1].seq1))
- return -1;
-
- for (; i < dest_count; i++) {
- if (src->seq1 < dest[i].seq1)
- break;
- }
-
- new_exp = *src;
-
- first = i;
- while (i < dest_count && src->seq2 >= dest[i].seq1-1) {
- /* we can/must merge with next record */
- if (new_exp.seq2 < dest[i].seq2)
- new_exp.seq2 = dest[i].seq2;
- i++;
- }
-
- if (first > 0 && new_exp.seq1 <= dest[first-1].seq2+1) {
- /* continue previous record */
- if (dest[first-1].seq2 < new_exp.seq2)
- dest[first-1].seq2 = new_exp.seq2;
- } else if (i == first) {
- array_insert(expunges, i, &new_exp, 1);
- i++; first++;
-
- dest = array_get_modifiable(expunges, &dest_count);
- } else {
- /* use next record */
- dest[first] = new_exp;
- first++;
- }
-
- if (i > first) {
- array_delete(expunges, first, i - first);
-
- dest = array_get_modifiable(expunges, &dest_count);
- i = first;
- }
- }
- return 0;
-}
static int
view_sync_set_log_view_range(struct mail_index_view *view, bool sync_expunges,
@@ -175,6 +110,19 @@ view_sync_expunges2seqs(struct mail_inde
return expunge_count;
}
+static void
+view_sync_add_expunge_range(ARRAY_TYPE(seq_range) *dest,
+ const struct seq_range *src, size_t src_size)
+{
+ unsigned int i, src_count;
+
+ i_assert(src_size % sizeof(*src) == 0);
+
+ src_count = src_size / sizeof(*src);
+ for (i = 0; i < src_count; i++)
+ seq_range_array_add_range(dest, src[i].seq1, src[i].seq2);
+}
+
static int
view_sync_get_expunges(struct mail_index_view_sync_ctx *ctx,
unsigned int *expunge_count_r)
@@ -186,7 +134,8 @@ view_sync_get_expunges(struct mail_index
/* get a list of expunge transactions. there may be some that we have
already synced, but it doesn't matter because they'll get dropped
- out when converting to sequences */
+ out when converting to sequences. the uid ranges' validity has
+ already been verified, so we can use them directly. */
mail_transaction_log_view_mark(view->log_view);
while ((ret = mail_transaction_log_view_next(view->log_view,
&hdr, &data)) > 0) {
@@ -197,12 +146,7 @@ view_sync_get_expunges(struct mail_index
continue;
}
- if (mail_transaction_log_sort_expunges(&ctx->expunges, data,
- hdr->size) < 0) {
- mail_transaction_log_view_set_corrupted(view->log_view,
- "Corrupted expunge record");
- return -1;
- }
+ view_sync_add_expunge_range(&ctx->expunges, data, hdr->size);
}
mail_transaction_log_view_rewind(view->log_view);
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