1 files changed, 22 insertions, 0 deletions
diff --git a/src/lib-index/mail-index-util.h b/src/lib-index/mail-index-util.h
new file mode 100644
index 0000000..b61e16a
--- /dev/null
+++ b/src/lib-index/mail-index-util.h
@@ -0,0 +1,22 @@
+#ifndef MAIL_INDEX_UTIL_H
+#define MAIL_INDEX_UTIL_H
+
+ARRAY_DEFINE_TYPE(seq_array, uint32_t);
+
+uint32_t mail_index_uint32_to_offset(uint32_t offset);
+uint32_t mail_index_offset_to_uint32(uint32_t offset);
+
+#define MAIL_INDEX_PACK_MAX_SIZE ((sizeof(uint32_t) * 8 + 7) / 7)
+void mail_index_pack_num(uint8_t **p, uint32_t num);
+int mail_index_unpack_num(const uint8_t **p, const uint8_t *end,
+			  uint32_t *num_r);
+
+bool mail_index_seq_array_lookup(const ARRAY_TYPE(seq_array) *array,
+				 uint32_t seq, unsigned int *idx_r);
+void mail_index_seq_array_alloc(ARRAY_TYPE(seq_array) *array,
+				size_t record_size);
+bool mail_index_seq_array_add(ARRAY_TYPE(seq_array) *array, uint32_t seq,
+			      const void *record, size_t record_size,
+			      void *old_record) ATTR_NULL(5);
+
+#endif