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nostrdb/blocks: expose block iterator internals

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so we don't need heap allocation. we will be calling this a lot in tight
render loops, we don't want to be allocating on each frame.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2023-12-30 19:19:15 -08:00
committed by Daniel D’Aquino
parent d063362bd7
commit c677233dcb
5 changed files with 50 additions and 56 deletions
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39
nostrdb/src/nostrdb.h
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@@ -360,6 +360,42 @@ struct nostr_bech32 {
};
struct ndb_mention_bech32_block {
struct ndb_str_block str;
struct nostr_bech32 bech32;
};
struct ndb_invoice {
unsigned char version;
uint64_t amount;
uint64_t timestamp;
uint64_t expiry;
char *description;
unsigned char *description_hash;
};
struct ndb_invoice_block {
struct ndb_str_block invstr;
struct ndb_invoice invoice;
};
struct ndb_block {
enum ndb_block_type type;
union {
struct ndb_str_block str;
struct ndb_invoice_block invoice;
struct ndb_mention_bech32_block mention_bech32;
uint32_t mention_index;
} block;
};
struct ndb_block_iterator {
const char *content;
struct ndb_blocks *blocks;
struct ndb_block block;
unsigned char *p;
};
// CONFIG
void ndb_default_config(struct ndb_config *);
void ndb_config_set_ingest_threads(struct ndb_config *config, int threads);
@@ -479,8 +515,7 @@ void ndb_blocks_free(struct ndb_blocks *blocks);
struct ndb_blocks *ndb_get_blocks_by_key(struct ndb *ndb, struct ndb_txn *txn, uint64_t note_key);
// BLOCK ITERATORS
struct ndb_block_iterator *ndb_blocks_iterate_start(const char *, struct ndb_blocks *);
void ndb_blocks_iterate_free(struct ndb_block_iterator *);
void ndb_blocks_iterate_start(const char *, struct ndb_blocks *, struct ndb_block_iterator *);
struct ndb_block *ndb_blocks_iterate_next(struct ndb_block_iterator *);
// STR BLOCKS