1 files changed, 66 insertions, 0 deletions
diff --git a/src/lib-index/mail-index-modseq.h b/src/lib-index/mail-index-modseq.h
new file mode 100644
index 0000000..f0fe48a
--- /dev/null
+++ b/src/lib-index/mail-index-modseq.h
@@ -0,0 +1,66 @@
+#ifndef MAIL_INDEX_MODSEQ_H
+#define MAIL_INDEX_MODSEQ_H
+
+#include "mail-types.h"
+
+#define MAIL_INDEX_MODSEQ_EXT_NAME "modseq"
+
+struct mail_keywords;
+struct mail_index;
+struct mail_index_map;
+struct mail_index_view;
+struct mail_index_modseq;
+struct mail_index_map_modseq;
+struct mail_index_sync_map_ctx;
+
+void mail_index_modseq_init(struct mail_index *index);
+
+/* Save a copy of the current modseq header to map->modseq_hdr_snapshot. This
+   is expected to be called when reading the dovecot.index header before any
+   changes are applied on top of it from dovecot.index.log. */
+void mail_index_modseq_hdr_snapshot_update(struct mail_index_map *map);
+
+const struct mail_index_modseq_header *
+mail_index_map_get_modseq_header(struct mail_index_map *map);
+uint64_t mail_index_map_modseq_get_highest(struct mail_index_map *map);
+void mail_index_modseq_enable(struct mail_index *index);
+bool mail_index_have_modseq_tracking(struct mail_index *index);
+uint64_t mail_index_modseq_get_highest(struct mail_index_view *view);
+
+uint64_t mail_index_modseq_lookup(struct mail_index_view *view, uint32_t seq);
+uint64_t mail_index_modseq_lookup_flags(struct mail_index_view *view,
+					enum mail_flags flags_mask,
+					uint32_t seq);
+uint64_t mail_index_modseq_lookup_keywords(struct mail_index_view *view,
+					   const struct mail_keywords *keywords,
+					   uint32_t seq);
+int mail_index_modseq_set(struct mail_index_view *view,
+			  uint32_t seq, uint64_t min_modseq);
+
+struct mail_index_modseq_sync *
+mail_index_modseq_sync_begin(struct mail_index_sync_map_ctx *sync_map_ctx);
+void mail_index_modseq_sync_end(struct mail_index_modseq_sync **ctx);
+
+void mail_index_modseq_sync_map_replaced(struct mail_index_modseq_sync *ctx);
+void mail_index_modseq_hdr_update(struct mail_index_modseq_sync *ctx);
+void mail_index_modseq_append(struct mail_index_modseq_sync *ctx, uint32_t seq);
+void mail_index_modseq_expunge(struct mail_index_modseq_sync *ctx,
+			       uint32_t seq1, uint32_t seq2);
+void mail_index_modseq_update_flags(struct mail_index_modseq_sync *ctx,
+				    enum mail_flags flags_mask,
+				    uint32_t seq1, uint32_t seq2);
+void mail_index_modseq_update_keyword(struct mail_index_modseq_sync *ctx,
+				      unsigned int keyword_idx,
+				      uint32_t seq1, uint32_t seq2);
+void mail_index_modseq_reset_keywords(struct mail_index_modseq_sync *ctx,
+				      uint32_t seq1, uint32_t seq2);
+
+struct mail_index_map_modseq *
+mail_index_map_modseq_clone(const struct mail_index_map_modseq *mmap);
+void mail_index_map_modseq_free(struct mail_index_map_modseq **mmap);
+
+bool mail_index_modseq_get_next_log_offset(struct mail_index_view *view,
+					   uint64_t modseq, uint32_t *log_seq_r,
+					   uoff_t *log_offset_r);
+
+#endif