microcosm.blue
Fast and robust atproto CAR file processing in rust
fjall 3.0.0 buggy
bad-example.com
+246
-66
+200
-1
Cargo.lock
+200
-1
Cargo.lock
···
167
checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
168
169
[[package]]
170
name = "bytes"
171
version = "1.10.1"
172
source = "registry+https://github.com/rust-lang/crates.io-index"
173
checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
174
175
[[package]]
176
name = "cast"
···
281
checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
282
283
[[package]]
284
name = "const-str"
285
version = "0.4.3"
286
source = "registry+https://github.com/rust-lang/crates.io-index"
···
358
]
359
360
[[package]]
361
name = "crossbeam-utils"
362
version = "0.8.21"
363
source = "registry+https://github.com/rust-lang/crates.io-index"
···
377
dependencies = [
378
"generic-array",
379
"typenum",
380
]
381
382
[[package]]
···
422
checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
423
424
[[package]]
425
name = "env_filter"
426
version = "0.1.3"
427
source = "registry+https://github.com/rust-lang/crates.io-index"
···
443
"jiff",
444
"log",
445
]
446
447
[[package]]
448
name = "errno"
···
471
version = "2.3.0"
472
source = "registry+https://github.com/rust-lang/crates.io-index"
473
checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
474
475
[[package]]
476
name = "foldhash"
···
608
609
[[package]]
610
name = "hashbrown"
611
version = "0.15.5"
612
source = "registry+https://github.com/rust-lang/crates.io-index"
613
checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
···
616
]
617
618
[[package]]
619
name = "hashlink"
620
version = "0.10.0"
621
source = "registry+https://github.com/rust-lang/crates.io-index"
622
checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
623
dependencies = [
624
-
"hashbrown",
625
]
626
627
[[package]]
···
631
checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
632
633
[[package]]
634
name = "io-uring"
635
version = "0.7.10"
636
source = "registry+https://github.com/rust-lang/crates.io-index"
···
761
checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"
762
763
[[package]]
764
name = "match-lookup"
765
version = "0.1.1"
766
source = "registry+https://github.com/rust-lang/crates.io-index"
···
950
]
951
952
[[package]]
953
name = "quote"
954
version = "1.0.41"
955
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1030
"clap",
1031
"criterion",
1032
"env_logger",
1033
"futures",
1034
"futures-core",
1035
"ipld-core",
···
1067
checksum = "56f7d92ca342cea22a06f2121d944b4fd82af56988c270852495420f961d4ace"
1068
1069
[[package]]
1070
name = "rustix"
1071
version = "1.1.2"
1072
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1105
version = "1.2.0"
1106
source = "registry+https://github.com/rust-lang/crates.io-index"
1107
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
1108
1109
[[package]]
1110
name = "serde"
···
1172
]
1173
1174
[[package]]
1175
name = "sha2"
1176
version = "0.10.9"
1177
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1214
]
1215
1216
[[package]]
1217
name = "strsim"
1218
version = "0.11.1"
1219
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1336
]
1337
1338
[[package]]
1339
name = "typenum"
1340
version = "1.19.0"
1341
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1370
version = "0.2.2"
1371
source = "registry+https://github.com/rust-lang/crates.io-index"
1372
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
1373
1374
[[package]]
1375
name = "vcpkg"
···
1659
version = "0.46.0"
1660
source = "registry+https://github.com/rust-lang/crates.io-index"
1661
checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
1662
1663
[[package]]
1664
name = "zerocopy"
···
167
checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
168
169
[[package]]
170
+
name = "byteorder-lite"
171
+
version = "0.1.0"
172
+
source = "registry+https://github.com/rust-lang/crates.io-index"
173
+
checksum = "8f1fe948ff07f4bd06c30984e69f5b4899c516a3ef74f34df92a2df2ab535495"
174
+
175
+
[[package]]
176
name = "bytes"
177
version = "1.10.1"
178
source = "registry+https://github.com/rust-lang/crates.io-index"
179
checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
180
+
181
+
[[package]]
182
+
name = "byteview"
183
+
version = "0.10.0"
184
+
source = "registry+https://github.com/rust-lang/crates.io-index"
185
+
checksum = "dda4398f387cc6395a3e93b3867cd9abda914c97a0b344d1eefb2e5c51785fca"
186
187
[[package]]
188
name = "cast"
···
293
checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
294
295
[[package]]
296
+
name = "compare"
297
+
version = "0.0.6"
298
+
source = "registry+https://github.com/rust-lang/crates.io-index"
299
+
checksum = "ea0095f6103c2a8b44acd6fd15960c801dafebf02e21940360833e0673f48ba7"
300
+
301
+
[[package]]
302
name = "const-str"
303
version = "0.4.3"
304
source = "registry+https://github.com/rust-lang/crates.io-index"
···
376
]
377
378
[[package]]
379
+
name = "crossbeam-skiplist"
380
+
version = "0.1.3"
381
+
source = "registry+https://github.com/rust-lang/crates.io-index"
382
+
checksum = "df29de440c58ca2cc6e587ec3d22347551a32435fbde9d2bff64e78a9ffa151b"
383
+
dependencies = [
384
+
"crossbeam-epoch",
385
+
"crossbeam-utils",
386
+
]
387
+
388
+
[[package]]
389
name = "crossbeam-utils"
390
version = "0.8.21"
391
source = "registry+https://github.com/rust-lang/crates.io-index"
···
405
dependencies = [
406
"generic-array",
407
"typenum",
408
+
]
409
+
410
+
[[package]]
411
+
name = "dashmap"
412
+
version = "6.1.0"
413
+
source = "registry+https://github.com/rust-lang/crates.io-index"
414
+
checksum = "5041cc499144891f3790297212f32a74fb938e5136a14943f338ef9e0ae276cf"
415
+
dependencies = [
416
+
"cfg-if",
417
+
"crossbeam-utils",
418
+
"hashbrown 0.14.5",
419
+
"lock_api",
420
+
"once_cell",
421
+
"parking_lot_core",
422
]
423
424
[[package]]
···
464
checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
465
466
[[package]]
467
+
name = "enum_dispatch"
468
+
version = "0.3.13"
469
+
source = "registry+https://github.com/rust-lang/crates.io-index"
470
+
checksum = "aa18ce2bc66555b3218614519ac839ddb759a7d6720732f979ef8d13be147ecd"
471
+
dependencies = [
472
+
"once_cell",
473
+
"proc-macro2",
474
+
"quote",
475
+
"syn 2.0.106",
476
+
]
477
+
478
+
[[package]]
479
name = "env_filter"
480
version = "0.1.3"
481
source = "registry+https://github.com/rust-lang/crates.io-index"
···
497
"jiff",
498
"log",
499
]
500
+
501
+
[[package]]
502
+
name = "equivalent"
503
+
version = "1.0.2"
504
+
source = "registry+https://github.com/rust-lang/crates.io-index"
505
+
checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
506
507
[[package]]
508
name = "errno"
···
531
version = "2.3.0"
532
source = "registry+https://github.com/rust-lang/crates.io-index"
533
checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
534
+
535
+
[[package]]
536
+
name = "fjall"
537
+
version = "3.0.0"
538
+
source = "registry+https://github.com/rust-lang/crates.io-index"
539
+
checksum = "4986f550347ed1666561f36e8bf1be3c97df72850ecef0140129da6e2d0aa911"
540
+
dependencies = [
541
+
"byteorder-lite",
542
+
"byteview",
543
+
"dashmap",
544
+
"flume",
545
+
"log",
546
+
"lsm-tree",
547
+
"lz4_flex",
548
+
"tempfile",
549
+
"xxhash-rust",
550
+
]
551
+
552
+
[[package]]
553
+
name = "flume"
554
+
version = "0.12.0"
555
+
source = "registry+https://github.com/rust-lang/crates.io-index"
556
+
checksum = "5e139bc46ca777eb5efaf62df0ab8cc5fd400866427e56c68b22e414e53bd3be"
557
+
dependencies = [
558
+
"spin",
559
+
]
560
561
[[package]]
562
name = "foldhash"
···
694
695
[[package]]
696
name = "hashbrown"
697
+
version = "0.14.5"
698
+
source = "registry+https://github.com/rust-lang/crates.io-index"
699
+
checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
700
+
701
+
[[package]]
702
+
name = "hashbrown"
703
version = "0.15.5"
704
source = "registry+https://github.com/rust-lang/crates.io-index"
705
checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
···
708
]
709
710
[[package]]
711
+
name = "hashbrown"
712
+
version = "0.16.1"
713
+
source = "registry+https://github.com/rust-lang/crates.io-index"
714
+
checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
715
+
716
+
[[package]]
717
name = "hashlink"
718
version = "0.10.0"
719
source = "registry+https://github.com/rust-lang/crates.io-index"
720
checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
721
dependencies = [
722
+
"hashbrown 0.15.5",
723
]
724
725
[[package]]
···
729
checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
730
731
[[package]]
732
+
name = "interval-heap"
733
+
version = "0.0.5"
734
+
source = "registry+https://github.com/rust-lang/crates.io-index"
735
+
checksum = "11274e5e8e89b8607cfedc2910b6626e998779b48a019151c7604d0adcb86ac6"
736
+
dependencies = [
737
+
"compare",
738
+
]
739
+
740
+
[[package]]
741
name = "io-uring"
742
version = "0.7.10"
743
source = "registry+https://github.com/rust-lang/crates.io-index"
···
868
checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"
869
870
[[package]]
871
+
name = "lsm-tree"
872
+
version = "3.0.0"
873
+
source = "registry+https://github.com/rust-lang/crates.io-index"
874
+
checksum = "3a206e87e8bc38114045060ec1fc6bc4e4559748a37e9622b910d80e48863e87"
875
+
dependencies = [
876
+
"byteorder-lite",
877
+
"byteview",
878
+
"crossbeam-skiplist",
879
+
"enum_dispatch",
880
+
"interval-heap",
881
+
"log",
882
+
"lz4_flex",
883
+
"quick_cache",
884
+
"rustc-hash",
885
+
"self_cell",
886
+
"sfa",
887
+
"tempfile",
888
+
"varint-rs",
889
+
"xxhash-rust",
890
+
]
891
+
892
+
[[package]]
893
+
name = "lz4_flex"
894
+
version = "0.11.5"
895
+
source = "registry+https://github.com/rust-lang/crates.io-index"
896
+
checksum = "08ab2867e3eeeca90e844d1940eab391c9dc5228783db2ed999acbc0a9ed375a"
897
+
dependencies = [
898
+
"twox-hash",
899
+
]
900
+
901
+
[[package]]
902
name = "match-lookup"
903
version = "0.1.1"
904
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1088
]
1089
1090
[[package]]
1091
+
name = "quick_cache"
1092
+
version = "0.6.18"
1093
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1094
+
checksum = "7ada44a88ef953a3294f6eb55d2007ba44646015e18613d2f213016379203ef3"
1095
+
dependencies = [
1096
+
"equivalent",
1097
+
"hashbrown 0.16.1",
1098
+
]
1099
+
1100
+
[[package]]
1101
name = "quote"
1102
version = "1.0.41"
1103
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1178
"clap",
1179
"criterion",
1180
"env_logger",
1181
+
"fjall",
1182
"futures",
1183
"futures-core",
1184
"ipld-core",
···
1216
checksum = "56f7d92ca342cea22a06f2121d944b4fd82af56988c270852495420f961d4ace"
1217
1218
[[package]]
1219
+
name = "rustc-hash"
1220
+
version = "2.1.1"
1221
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1222
+
checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d"
1223
+
1224
+
[[package]]
1225
name = "rustix"
1226
version = "1.1.2"
1227
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1260
version = "1.2.0"
1261
source = "registry+https://github.com/rust-lang/crates.io-index"
1262
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
1263
+
1264
+
[[package]]
1265
+
name = "self_cell"
1266
+
version = "1.2.2"
1267
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1268
+
checksum = "b12e76d157a900eb52e81bc6e9f3069344290341720e9178cde2407113ac8d89"
1269
1270
[[package]]
1271
name = "serde"
···
1333
]
1334
1335
[[package]]
1336
+
name = "sfa"
1337
+
version = "1.0.0"
1338
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1339
+
checksum = "a1296838937cab56cd6c4eeeb8718ec777383700c33f060e2869867bd01d1175"
1340
+
dependencies = [
1341
+
"byteorder-lite",
1342
+
"log",
1343
+
"xxhash-rust",
1344
+
]
1345
+
1346
+
[[package]]
1347
name = "sha2"
1348
version = "0.10.9"
1349
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1386
]
1387
1388
[[package]]
1389
+
name = "spin"
1390
+
version = "0.9.8"
1391
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1392
+
checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
1393
+
dependencies = [
1394
+
"lock_api",
1395
+
]
1396
+
1397
+
[[package]]
1398
name = "strsim"
1399
version = "0.11.1"
1400
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1517
]
1518
1519
[[package]]
1520
+
name = "twox-hash"
1521
+
version = "2.1.2"
1522
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1523
+
checksum = "9ea3136b675547379c4bd395ca6b938e5ad3c3d20fad76e7fe85f9e0d011419c"
1524
+
1525
+
[[package]]
1526
name = "typenum"
1527
version = "1.19.0"
1528
source = "registry+https://github.com/rust-lang/crates.io-index"
···
1557
version = "0.2.2"
1558
source = "registry+https://github.com/rust-lang/crates.io-index"
1559
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
1560
+
1561
+
[[package]]
1562
+
name = "varint-rs"
1563
+
version = "2.2.0"
1564
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1565
+
checksum = "8f54a172d0620933a27a4360d3db3e2ae0dd6cceae9730751a036bbf182c4b23"
1566
1567
[[package]]
1568
name = "vcpkg"
···
1852
version = "0.46.0"
1853
source = "registry+https://github.com/rust-lang/crates.io-index"
1854
checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
1855
+
1856
+
[[package]]
1857
+
name = "xxhash-rust"
1858
+
version = "0.8.15"
1859
+
source = "registry+https://github.com/rust-lang/crates.io-index"
1860
+
checksum = "fdd20c5420375476fbd4394763288da7eb0cc0b8c11deed431a91562af7335d3"
1861
1862
[[package]]
1863
name = "zerocopy"
+1
Cargo.toml
+1
Cargo.toml
-5
examples/disk-read-file/main.rs
-5
examples/disk-read-file/main.rs
···
82
83
log::info!("arrived! ({:?}) joining rx...", t0.elapsed());
84
85
-
// clean up the database. would be nice to do this in drop so it happens
86
-
// automatically, but some blocking work happens, so that's not allowed in
87
-
// async rust. 🤷♀️
88
-
join.await?.reset_store().await?;
89
-
90
log::info!("done. n={n} zeros={zeros}");
91
92
Ok(())
+44
-56
src/disk.rs
+44
-56
src/disk.rs
···
18
*/
19
20
use crate::drive::DriveError;
21
-
use rusqlite::OptionalExtension;
22
use std::path::PathBuf;
23
24
#[derive(Debug, thiserror::Error)]
···
28
/// (The wrapped err should probably be obscured to remove public-facing
29
/// sqlite bits)
30
#[error(transparent)]
31
-
DbError(#[from] rusqlite::Error),
32
/// A tokio blocking task failed to join
33
#[error("Failed to join a tokio blocking task: {0}")]
34
JoinError(#[from] tokio::task::JoinError),
···
71
impl Default for DiskBuilder {
72
fn default() -> Self {
73
Self {
74
-
cache_size_mb: 32,
75
max_stored_mb: 10 * 1024, // 10 GiB
76
}
77
}
···
84
}
85
/// Set the in-memory cache allowance for the database
86
///
87
-
/// Default: 32 MiB
88
pub fn with_cache_size_mb(mut self, size: usize) -> Self {
89
self.cache_size_mb = size;
90
self
···
104
105
/// On-disk block storage
106
pub struct DiskStore {
107
-
conn: rusqlite::Connection,
108
max_stored: usize,
109
stored: usize,
110
}
···
117
max_stored_mb: usize,
118
) -> Result<Self, DiskError> {
119
let max_stored = max_stored_mb * 2_usize.pow(20);
120
-
let conn = tokio::task::spawn_blocking(move || {
121
-
let conn = rusqlite::Connection::open(path)?;
122
-
123
-
let sqlite_one_mb = -(2_i64.pow(10)); // negative is kibibytes for sqlite cache_size
124
-
125
-
// conn.pragma_update(None, "journal_mode", "OFF")?;
126
-
// conn.pragma_update(None, "journal_mode", "MEMORY")?;
127
-
conn.pragma_update(None, "journal_mode", "WAL")?;
128
-
// conn.pragma_update(None, "wal_autocheckpoint", "0")?; // this lets things get a bit big on disk
129
-
conn.pragma_update(None, "synchronous", "OFF")?;
130
-
conn.pragma_update(
131
-
None,
132
-
"cache_size",
133
-
(cache_mb as i64 * sqlite_one_mb).to_string(),
134
)?;
135
-
Self::reset_tables(&conn)?;
136
137
-
Ok::<_, DiskError>(conn)
138
})
139
.await??;
140
141
Ok(Self {
142
-
conn,
143
max_stored,
144
stored: 0,
145
})
146
}
147
pub(crate) fn get_writer(&'_ mut self) -> Result<SqliteWriter<'_>, DiskError> {
148
-
let tx = self.conn.transaction()?;
149
Ok(SqliteWriter {
150
-
tx,
151
stored: &mut self.stored,
152
max: self.max_stored,
153
})
154
}
155
-
pub(crate) fn get_reader<'conn>(&'conn self) -> Result<SqliteReader<'conn>, DiskError> {
156
-
let select_stmt = self.conn.prepare("SELECT val FROM blocks WHERE key = ?1")?;
157
-
Ok(SqliteReader { select_stmt })
158
}
159
/// Drop and recreate the kv table
160
pub async fn reset(self) -> Result<Self, DiskError> {
161
tokio::task::spawn_blocking(move || {
162
-
Self::reset_tables(&self.conn)?;
163
Ok(self)
164
})
165
.await?
166
}
167
-
fn reset_tables(conn: &rusqlite::Connection) -> Result<(), DiskError> {
168
-
conn.execute("DROP TABLE IF EXISTS blocks", ())?;
169
-
conn.execute(
170
-
"CREATE TABLE blocks (
171
-
key BLOB PRIMARY KEY NOT NULL,
172
-
val BLOB NOT NULL
173
-
) WITHOUT ROWID",
174
-
(),
175
-
)?;
176
Ok(())
177
}
178
}
179
180
-
pub(crate) struct SqliteWriter<'conn> {
181
-
tx: rusqlite::Transaction<'conn>,
182
-
stored: &'conn mut usize,
183
max: usize,
184
}
185
···
188
&mut self,
189
kv: impl Iterator<Item = Result<(Vec<u8>, Vec<u8>), DriveError>>,
190
) -> Result<(), DriveError> {
191
-
let mut insert_stmt = self
192
-
.tx
193
-
.prepare_cached("INSERT INTO blocks (key, val) VALUES (?1, ?2)")
194
-
.map_err(DiskError::DbError)?;
195
for pair in kv {
196
let (k, v) = pair?;
197
*self.stored += v.len();
198
if *self.stored > self.max {
199
return Err(DiskError::MaxSizeExceeded.into());
200
}
201
-
insert_stmt.execute((k, v)).map_err(DiskError::DbError)?;
202
}
203
Ok(())
204
}
205
-
pub fn commit(self) -> Result<(), DiskError> {
206
-
self.tx.commit()?;
207
-
Ok(())
208
-
}
209
}
210
211
-
pub(crate) struct SqliteReader<'conn> {
212
-
select_stmt: rusqlite::Statement<'conn>,
213
}
214
215
-
impl SqliteReader<'_> {
216
-
pub(crate) fn get(&mut self, key: Vec<u8>) -> rusqlite::Result<Option<Vec<u8>>> {
217
-
self.select_stmt
218
-
.query_one((&key,), |row| row.get(0))
219
-
.optional()
220
}
221
}
···
18
*/
19
20
use crate::drive::DriveError;
21
+
use fjall::{Database, Keyspace, KeyspaceCreateOptions, Error as FjallError};
22
use std::path::PathBuf;
23
24
#[derive(Debug, thiserror::Error)]
···
28
/// (The wrapped err should probably be obscured to remove public-facing
29
/// sqlite bits)
30
#[error(transparent)]
31
+
DbError(#[from] FjallError),
32
/// A tokio blocking task failed to join
33
#[error("Failed to join a tokio blocking task: {0}")]
34
JoinError(#[from] tokio::task::JoinError),
···
71
impl Default for DiskBuilder {
72
fn default() -> Self {
73
Self {
74
+
cache_size_mb: 64,
75
max_stored_mb: 10 * 1024, // 10 GiB
76
}
77
}
···
84
}
85
/// Set the in-memory cache allowance for the database
86
///
87
+
/// Default: 64 MiB
88
pub fn with_cache_size_mb(mut self, size: usize) -> Self {
89
self.cache_size_mb = size;
90
self
···
104
105
/// On-disk block storage
106
pub struct DiskStore {
107
+
#[allow(unused)]
108
+
db: Database,
109
+
ks: Keyspace,
110
max_stored: usize,
111
stored: usize,
112
}
···
119
max_stored_mb: usize,
120
) -> Result<Self, DiskError> {
121
let max_stored = max_stored_mb * 2_usize.pow(20);
122
+
let (db, ks) = tokio::task::spawn_blocking(move || {
123
+
let db = Database::builder(path)
124
+
// .manual_journal_persist(true)
125
+
// .worker_threads(1)
126
+
// .cache_size(cache_mb as u64 * 2_u64.pow(20))
127
+
// .temporary(true)
128
+
.open()?;
129
+
let ks = db.keyspace("z", ||
130
+
KeyspaceCreateOptions::default()
131
+
// .expect_point_read_hits(true)
132
+
// .manual_journal_persist(true)
133
)?;
134
+
135
+
// Self::reset_tables(&ks)?;
136
137
+
Ok::<_, DiskError>((db, ks))
138
})
139
.await??;
140
141
Ok(Self {
142
+
db,
143
+
ks,
144
max_stored,
145
stored: 0,
146
})
147
}
148
pub(crate) fn get_writer(&'_ mut self) -> Result<SqliteWriter<'_>, DiskError> {
149
Ok(SqliteWriter {
150
+
ks: self.ks.clone(),
151
stored: &mut self.stored,
152
max: self.max_stored,
153
})
154
}
155
+
pub(crate) fn get_reader(&self) -> Result<SqliteReader, DiskError> {
156
+
Ok(SqliteReader {
157
+
ks: self.ks.clone(),
158
+
})
159
}
160
/// Drop and recreate the kv table
161
pub async fn reset(self) -> Result<Self, DiskError> {
162
tokio::task::spawn_blocking(move || {
163
+
Self::reset_tables(&self.ks)?;
164
Ok(self)
165
})
166
.await?
167
}
168
+
fn reset_tables(ks: &Keyspace) -> Result<(), DiskError> {
169
+
ks.clear()?;
170
Ok(())
171
}
172
}
173
174
+
pub(crate) struct SqliteWriter<'a> {
175
+
ks: Keyspace,
176
+
stored: &'a mut usize,
177
max: usize,
178
}
179
···
182
&mut self,
183
kv: impl Iterator<Item = Result<(Vec<u8>, Vec<u8>), DriveError>>,
184
) -> Result<(), DriveError> {
185
for pair in kv {
186
let (k, v) = pair?;
187
*self.stored += v.len();
188
if *self.stored > self.max {
189
return Err(DiskError::MaxSizeExceeded.into());
190
}
191
+
self.ks.insert(k, v).map_err(DiskError::DbError)?;
192
}
193
Ok(())
194
}
195
}
196
197
+
pub(crate) struct SqliteReader {
198
+
ks: Keyspace,
199
}
200
201
+
impl SqliteReader {
202
+
pub(crate) fn get(&mut self, key: Vec<u8>) -> Result<Option<Vec<u8>>, FjallError> {
203
+
let rv = self
204
+
.ks
205
+
.get(&key)?
206
+
.map(|v| v.as_ref().into());
207
+
Ok(rv)
208
}
209
}
-3
src/drive.rs
-3
src/drive.rs
···
343
.map(|(k, v)| Ok(encode(v).map(|v| (k.to_bytes(), v))?));
344
345
writer.put_many(kvs)?;
346
-
writer.commit()?;
347
Ok::<_, DriveError>(store)
348
})
349
.await??;
···
359
.map(|(k, v)| Ok(encode(v).map(|v| (k.to_bytes(), v))?));
360
writer.put_many(kvs)?;
361
}
362
-
363
-
writer.commit()?;
364
Ok::<_, DriveError>(store)
365
}); // await later
366
···
343
.map(|(k, v)| Ok(encode(v).map(|v| (k.to_bytes(), v))?));
344
345
writer.put_many(kvs)?;
346
Ok::<_, DriveError>(store)
347
})
348
.await??;
···
358
.map(|(k, v)| Ok(encode(v).map(|v| (k.to_bytes(), v))?));
359
writer.put_many(kvs)?;
360
}
361
Ok::<_, DriveError>(store)
362
}); // await later
363
+1
-1
src/walk.rs
+1
-1
src/walk.rs