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Diffstat (limited to '')
| -rw-r--r-- | src/lib-index/mail-index-transaction-private.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/lib-index/mail-index-transaction-private.h b/src/lib-index/mail-index-transaction-private.h new file mode 100644 index 0000000..eb438b2 --- /dev/null +++ b/src/lib-index/mail-index-transaction-private.h @@ -0,0 +1,165 @@ +#ifndef MAIL_INDEX_TRANSACTION_PRIVATE_H +#define MAIL_INDEX_TRANSACTION_PRIVATE_H + +#include "seq-range-array.h" +#include "mail-transaction-log.h" + +ARRAY_DEFINE_TYPE(seq_array_array, ARRAY_TYPE(seq_array)); + +struct mail_index_transaction_keyword_update { + ARRAY_TYPE(seq_range) add_seq; + ARRAY_TYPE(seq_range) remove_seq; +}; + +struct mail_index_transaction_ext_hdr_update { + size_t alloc_size; + /* mask is in bytes, not bits */ + unsigned char *mask; + unsigned char *data; +}; + +struct mail_index_transaction_vfuncs { + void (*reset)(struct mail_index_transaction *t); + int (*commit)(struct mail_index_transaction *t, + struct mail_index_transaction_commit_result *result_r); + void (*rollback)(struct mail_index_transaction *t); +}; + +union mail_index_transaction_module_context { + struct mail_index_transaction_vfuncs super; + struct mail_index_module_register *reg; +}; + +struct mail_index_flag_update { + uint32_t uid1, uid2; + uint16_t add_flags; + uint16_t remove_flags; +}; + +struct mail_index_transaction { + struct mail_index_transaction *prev, *next; + int refcount; + + enum mail_index_transaction_flags flags; + struct mail_index_transaction_vfuncs v, *vlast; + struct mail_index_view *view; + struct mail_index_view *latest_view; + + /* NOTE: If you add anything new, remember to update + mail_index_transaction_reset_v() to reset it. */ + ARRAY(struct mail_index_record) appends; + uint32_t first_new_seq, last_new_seq; + uint32_t highest_append_uid; + /* lowest/highest sequence that updates flags/keywords */ + uint32_t min_flagupdate_seq, max_flagupdate_seq; + + ARRAY(struct mail_transaction_modseq_update) modseq_updates; + ARRAY(struct mail_transaction_expunge_guid) expunges; + ARRAY(struct mail_index_flag_update) updates; + size_t last_update_idx; + + unsigned char pre_hdr_change[sizeof(struct mail_index_header)]; + unsigned char pre_hdr_mask[sizeof(struct mail_index_header)]; + unsigned char post_hdr_change[sizeof(struct mail_index_header)]; + unsigned char post_hdr_mask[sizeof(struct mail_index_header)]; + + ARRAY(struct mail_index_transaction_ext_hdr_update) ext_hdr_updates; + ARRAY_TYPE(seq_array_array) ext_rec_updates; + ARRAY_TYPE(seq_array_array) ext_rec_atomics; + ARRAY(struct mail_transaction_ext_intro) ext_resizes; + ARRAY(struct mail_transaction_ext_reset) ext_resets; + ARRAY(uint32_t) ext_reset_ids; + ARRAY(uint32_t) ext_reset_atomic; + + ARRAY(struct mail_index_transaction_keyword_update) keyword_updates; + buffer_t *attribute_updates; /* [+-][ps]key\0.. */ + buffer_t *attribute_updates_suffix; /* <timestamp>[<value len>].. */ + + uint64_t min_highest_modseq; + uint64_t max_modseq; + ARRAY_TYPE(seq_range) *conflict_seqs; + + /* Module-specific contexts. */ + ARRAY(union mail_index_transaction_module_context *) module_contexts; + + bool no_appends:1; + + bool sync_transaction:1; + bool appends_nonsorted:1; + bool expunges_nonsorted:1; + bool drop_unnecessary_flag_updates:1; + bool pre_hdr_changed:1; + bool post_hdr_changed:1; + bool reset:1; + bool index_deleted:1; + bool index_undeleted:1; + bool commit_deleted_index:1; + bool tail_offset_changed:1; + /* non-extension updates. flag updates don't change this because + they may be added and removed, so be sure to check that the updates + array is non-empty also. */ + bool log_updates:1; + /* extension updates */ + bool log_ext_updates:1; +}; + +#define MAIL_INDEX_TRANSACTION_HAS_CHANGES(t) \ + ((t)->log_updates || (t)->log_ext_updates || \ + (array_is_created(&(t)->updates) && array_count(&(t)->updates) > 0) || \ + (t)->index_deleted || (t)->index_undeleted) + +typedef void hook_mail_index_transaction_created_t(struct mail_index_transaction *t); + +void mail_index_transaction_hook_register(hook_mail_index_transaction_created_t *hook); +void mail_index_transaction_hook_unregister(hook_mail_index_transaction_created_t *hook); + +struct mail_index_record * +mail_index_transaction_lookup(struct mail_index_transaction *t, uint32_t seq); + +void mail_index_transaction_ref(struct mail_index_transaction *t); +void mail_index_transaction_unref(struct mail_index_transaction **t); +void mail_index_transaction_reset_v(struct mail_index_transaction *t); + +void mail_index_transaction_sort_appends(struct mail_index_transaction *t); +void mail_index_transaction_sort_expunges(struct mail_index_transaction *t); +uint32_t mail_index_transaction_get_next_uid(struct mail_index_transaction *t); +void mail_index_transaction_set_log_updates(struct mail_index_transaction *t); +void mail_index_update_day_headers(struct mail_index_transaction *t, time_t day_stamp); + +unsigned int +mail_index_transaction_get_flag_update_pos(struct mail_index_transaction *t, + unsigned int left_idx, + unsigned int right_idx, + uint32_t seq); +void mail_index_transaction_lookup_latest_keywords(struct mail_index_transaction *t, + uint32_t seq, + ARRAY_TYPE(keyword_indexes) *keywords); + +bool mail_index_cancel_flag_updates(struct mail_index_transaction *t, + uint32_t seq); +bool mail_index_cancel_keyword_updates(struct mail_index_transaction *t, + uint32_t seq); + +/* As input the array's each element starts with struct seq_range where + uid1..uid2 are actually sequences within the transaction view. This function + changes the sequences into UIDs. If the transaction has any appends, they + must have already been assigned UIDs. */ +void mail_index_transaction_seq_range_to_uid(struct mail_index_transaction *t, + ARRAY_TYPE(seq_range) *array); +void mail_index_transaction_finish_so_far(struct mail_index_transaction *t); +void mail_index_transaction_finish(struct mail_index_transaction *t); +void mail_index_transaction_export(struct mail_index_transaction *t, + struct mail_transaction_log_append_ctx *append_ctx, + enum mail_index_transaction_change *changes_r); +int mail_transaction_expunge_guid_cmp(const struct mail_transaction_expunge_guid *e1, + const struct mail_transaction_expunge_guid *e2); +unsigned int +mail_index_transaction_get_flag_update_pos(struct mail_index_transaction *t, + unsigned int left_idx, + unsigned int right_idx, + uint32_t seq); + +void mail_index_ext_using_reset_id(struct mail_index_transaction *t, + uint32_t ext_id, uint32_t reset_id); + +#endif |