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5 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
hinto-janai
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8f22d8ab79
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database: impl trait function bodies for heed & redb (#85)
* env: remove `T: Table` for `Env::create_tables()`
It creates _all_ tables, not a specific `T: Table`
* heed: half impl `Env::open()`, some TODOs
* heed: add `HeedTxR{o,w}<'env>`
* workspace/cargo: add `parking_lot`
* remove `parking_lot`
`MappedRwLockGuard` doesn't solve the `returning reference to
object owned by function` error when returning heed's lock guard
+ the tx so we'll be going with `std`
* env: add `{EnvInner,TxRoInput,TxRwInput}` and getter `fn()`s
* env: fix tx <-> table lifetimes, fix `Env::create_tables()`
* heed: impl `DatabaseRo`
* heed: impl `DatabaseRw`
* database: add `src/backend/${BACKEND}/tests.rs`
* heed: impl more of `Env::open()`
* redb: fix trait signatures, add `trait ValueGuard`
* accommodate `DatabaseRo` bounds for both `{heed,redb}`
* fold `get_range()` generic + bounds
* add `TxCreator`, add `heed` tests
* env: `TxCreator` -> `EnvInner` which doubles as DB/Table opener
* database: `DatabaseRw<'tx>` -> `DatabaseRw<'db, 'tx>`
* heed: `db_read_write()` test
* database: fix `get()` lifetimes, heed: add `db_read_write()` test
* database: remove `'env` lifetime from `DatabaseRo<'env, 'tx>`
not needed for immutable references
* redb: fix new `{Env, EnvInner, DatabaseR{o,w}}` bounds
* redb: impl `Database` traits
* redb: impl `TxR{o,w}` traits
* redb: impl `Env`
* redb: open/create tables in `Env::open`
* redb: enable tests, add tmp `Storable` printlns
* redb: fix alignment issue with `Cow` and `from_bytes_unaligned()`
* redb: only allocate bytes when alignment != 1
* heed: remove custom iterator from `range()`
* storable: conditionally allocat on misaligned bytes in `from_bytes`
* add database guard
* database: AccessGuard -> ValueGuard
* storable: add `ALIGN` and `from_bytes_unaligned()`
* redb: 1 serde type `StorableRedb`, fix impl
* cow serde, trait bounds, fix backend's where bounds
- Uses Cow for `redb`'s deserialization
- Conforms `heed` to use Cow (but not as the actual key/value)
- Conforms the `cuprate_database` trait API to use Cow
- Adds `ToOwned + Debug` (and permutation) trait bounds
- Solves 23098573148968945687345349657398 compiler errors due
to aforementioned trait bounds, causing `where` to be everywhere
* fix docs, use fully qualified Tx functions for tests
* backend: check value guard contains value in test
* add `Storable::ALIGN` tests, doc TODOs
* add `trait ToOwnedDebug`
* traits: `ToOwned + Debug` -> `ToOwnedDebug`
* heed: remove `ToOwned` + `Debug` bounds
* redb: remove `ToOwned` + `Debug` bounds
* add `ValueGuard`, replace signatures, fix `redb`
* heed: fix for `ValueGuard`
* docs, tests
* redb: add `CowRange` for `T::Key` -> `Cow<'_, T::Key>` conversion
* separate `config.rs` -> `config/`
* ci: combine tests, run both `heed` and `redb` tests
* ci: fix workflow
* backend: add `resize()` test
* ci: remove windows-specific update
* ci: remove update + windows default set
* backend: add `unreachable` tests, fix docs
* trait docs
* ci: fix
* Update database/src/backend/heed/env.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/heed/env.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/heed/transaction.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/heed/transaction.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/heed/transaction.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/redb/database.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/redb/database.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* Update database/src/backend/heed/database.rs
Co-authored-by: Boog900 <boog900@tutanota.com>
* readme: fix `value_guard.rs`
* heed: remove unneeded clippy + fix formatting
* heed: create and use `create_table()` in `Env::open()`
* redb: create and use `create_table()` in `Env::open()`
* redb: remove unneeded clippy
* fix clippy, remove `<[u8], [u8]>` docs
---------
Co-authored-by: Boog900 <54e72d8a-345f-4599-bd90-c6b9bc7d0ec5@aleeas.com>
Co-authored-by: Boog900 <boog900@tutanota.com>
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hinto-janai
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240e579066
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database: replace sanakirja with redb (#80)
* cargo: replace `sanakirja` with `redb`
* database: update docs `sanakirja` -> `redb`
* lib: add TODO for `ConcreteEnv` generic replacement
* database: split `trait Database` -> `trait Database{Read,Write}`
* heed: add `struct HeedTable{Ro,Rw}` to match `redb` behavior
* ops: remove imports for now
* env: fix `&mut` bound on RwTx
* database: impl `redb`, type-checks
* fix heed trait impls, `Database{Read,Write}` -> `Database{Ro,Rw}`
* redb: impl `From<_>` for `RuntimeError`
* update readme
* heed: document `HeedTableR{o,w}` types
* env: doc `sync()` invariant
* database: document data & lock filenames
* misc docs, `redb` durability impl, `'db` -> `'env`
* redb: fixes
* misc docs and fixes
* Update database/README.md
Co-authored-by: Boog900 <boog900@tutanota.com>
---------
Co-authored-by: Boog900 <boog900@tutanota.com>
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hinto-janai
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51d9ccd02d
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database: Resizes, Shutdown, Flushing (#68)
* error: add `NeedsResize` accidently removed, was `MapFull` before. We need this because we as the writer thread must react to this error in order to resize. The writer thread doesn't have access to `heed::Error`, but `Runtime::Error`, so this variant must exist * env/backend: add `MANUAL_RESIZE` and `resize()` * heed: respect `ReadersFull`, comment errors * free: add `resize_memory_map()` * env: add `Env::current_map_size` * service: add `resize_map()` * database: make `Env` itself cheaply clonable + threadsafe `heed::Env` already uses `Arc` internally, but `sanakirja` does not, so abstract this at the `Env` level instead of wrapping `ConcreteEnv` in `Arc` ourselves. * service: `Arc<ConcreteEnv>` -> `ConcreteEnv: Clone` * env: add `SYNCS_PER_TX`, `path()`, `shutdown()` * database: add `src/service/state.rs` * service: add to `state.rs`, add `DatabaseState` to readers/writer * add `parking_lot` Okay, turns out we need to take locks in `database/src/service/state.rs`... `std`'s lock fairness policies are not well defined and depend on the OS implementation, `parking_lot` on the other hand has a fairness policy which is important when the writer needs the lock but readers keep pouring in, essentially never letting the writer do stuff. * state: use `crossbeam::atomic::AtomicCell` We have crossbeam as a dep anyway. * heed: `heed::Env` -> `Arc<RwLock<heed::Env>>` * service: add reader shutdown handle, use `Select` for msgs * service: remove `state.rs` We don't need this, we will represent shutdowns with channel messages and `Select`, and mutual exclusion with a `RwLock`. * service: fix misc reader/writer stuff * database: add `config.rs` * service: use `ReaderThreads` when spawning readers * service: impl `shutdown()` for readers/writer * service: return `DatabaseReaderReceivers` on shutdown via `JoinHandle` Solves the issue of unfortunately timed `Request`s that come in _right_ as we are shutting down. If we (Cuprate) drop the database channels too early the requesting thread will probably panic as they probably use `.unwrap()`, never expecting a channel failure. Returning this structure containing all the channels allows the final shutdown code to carry these channels until the very end of the program, at which point, all threads exit - no panics. * remove `parking_lot` Could be used as the database mutual exclusion lock. Needs to be tested against `std`. * config: add `path` * env: `path()` -> `config()`, backend: impl `Drop` * `Arc<ConcreteEnv>`, shutdown `service` on channel disconnect * backend: add `Config` to `ConcreteEnv` * service: use `std:🧵:Builder` for readers/writer * config: `PathBuf` -> `Cow<'static, Path>` * misc docs, remove `RuntimeError::ShuttingDown` * service: init & shutdown docs * heed: impl `Env::resize_map()` * heed: impl `Env::current_map_size()` * lib.rs: add example crate usage test * heed: `RwLock` comment * helper: add `cuprate_database_dir()` * config: use `cuprate_database_dir()` * lib.rs: TODO example test * database: add `page_size` The database memory map size must be a multiple of the OS page size. Why doesn't `heed` re-expose this? It calls it when checking anyway... https://docs.rs/heed/0.20.0-alpha.9/src/heed/env.rs.html#772 * free: impl `resize_memory_map()` * free: docs * env: add `disk_size_bytes()` * config: impl `From<$num>` for `ReaderThreads` * move `fs`-related constants to `cuprate_helper::fs` * docs * add `resize.rs`, `ResizeAlgorithm` * env: use `ResizeAlgorithm` in `resize_map()` * TODO: account for LMDB reader limit * resize: docs, add `page_size()`, impl `fixed_bytes()` * resize: impl `percent()` * resize: docs * env: take `ResizeAlgorithm` by value (it impls `Copy`) * heed: TODO for `MDB_MAP_FULL` & `MDB_MAP_RESIZED` * config: `From<Into<usize>>` for `ReaderThreads` Co-authored-by: Boog900 <boog900@tutanota.com> * env: move mutual exclusion doc to backend * free: update invariant doc Co-authored-by: Boog900 <boog900@tutanota.com> * Update database/src/service/mod.rs Co-authored-by: Boog900 <boog900@tutanota.com> * fix `[allow(unused_imports)] // docs` * move DB filename from `helper/` -> `database/` * config: use `DATABASE_FILENAME` * config: add `db_file_path()` * lib: add non-`service` usage invariant docs * table: seal `Table` trait, impl for all `crate::tables` * fix docs * fix docs pt.2 --------- Co-authored-by: Boog900 <boog900@tutanota.com> |
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hinto-janai
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f7bd1304e2
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database: Errors (#62)
* error: add variants to `RuntimeError`
* error: remove `<BackendError>` generic
we can just map each backend error variant <-> our error as needed
* backend: impl `From<heed::Error>` for `RuntimeError`
* add `Never` type to allow foreign trait implementations
This is a newtype to workaround `sanakirja::Storable` not being
able to be implemented on `std::convert::Infallible` due to
"foreign trait on foreign type" rules.
* revert
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hinto-janai
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331d4d3e7f
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Database (#35)
* rename `database` -> `old_database` Keeping it around for reference until new implementation is complete. * create new `database/` skeleton * add `DATABASE.md` design doc skeleton * move design doc to `database/README.md` * add rough code * `lib.rs` -> `gist.rs` * database: use workspace deps * workspace: include `database/` as member CI will now include this crate. * cargo fmt * database: `AGPL` -> `MIT` * readme: add `TODO`s * add base files * cargo.toml: add `heed` feature * fix clippy * lib.rs: add extremely pedantic lints * readme: add `# Backends` * cargo.toml: add `cfg-if` * add `backend/` structure * base `database.rs` * cargo.toml: add `borsh` * backend: add `DATABASE_BACKEND` * base `error.rs` * base `database.rs` * base `transaction.rs` * base `table.rs` * lib.rs: add imports * add `pod.rs` * pod: use `Read/Write`, add tests for all primitive numbers * pod: impl Pod for `Vec<u8>`, `[u8; N]` * pod: add docs, add `private::Sealed` * pod: `to_writer`, `from_reader` The new `as_bytes` + `from_bytes` now allows (de)serializing from bytes directly instead of going through Read/Write. Different array return sizes are abstracted away with `-> impl AsRef<[u8]>` * pod: impl Pod for `Box<[u8]>` * pod: return `Err` on incorrect length in `from_bytes()` * pod: docs * pod: impl Pod for `Arc<[u8]>` * readme: docs * database: add `create_table()`, `get_table()` * table: `Pod` bound * backend: move into directories * pod: add `into_bytes()` * heed: impl `BytesEncode`, `BytesDecode` * add `actor`, `service` features The thread/actor system used will be gated behind `actor`, and the `tower/tokio` integration will be gated behind `service`. * add `lib.rs` docs * service: add `service.rs` * service: add `reader.rs` * service: add `writer.rs` * service: add `request.rs` & `response.rs` * cargo.toml: add `crossbeam` * service: add/use `enum Request`, `enum Response` * service: basic signatures for thread-pools, `Writer` -> `Writers` * service: split `tower::Service<ReadRequest/WriteRequest>` * service: impl `tower::Service` for `Database(Reader|Writer)` * service: add `init()`, impl basic `Reader/Writer` pools * service: add example `Request`'s * service: add example `ReadRequest` handling * temporarily allow clippy lints * readme: update file structure * transaction: add `RoTx::get_range()` * service: module docs * cargo.toml: add `cuprate-helper` * service: scale readers/writers based on thread count * database: change lifetimes * heed: impl Database for `heed` * heed: add `ConcreteRoTx`, `ConcreteRwTx`, impl Tx traits * docs * service: `read.rs` docs * service: `write.rs` docs * service: request/response docs * service: use `OnceLock` in `init()`, add `db_read()`, `db_write()` * service: leak database into `&'static` * database: add `#[inline]`, `#[cold]` * service: `free.rs` docs, more `#[inline]` + `#[cold]` * service: add `shutdown()` * service: add `Request::Shutdown` * service: `shutdown()` docs * heed: hide concrete tx types * lib.rs: add terms * split `Env` <-> `Database` * cargo.toml: add `paste` * database: add `tables/` * impl `serde/borsh` where possible * tables: add `Tables`, add test docs * make db backend mutually exclusive to fix `--all-features` * tables: use `$()*` in `tables!()` * cargo.toml: add `sanakirja 1.4.0` * sanakirja: impl `Env` * sanakirja: impl `Database` * sanakirja: impl `Transaction` * table: temporarily fix `sanakirja` K/V bounds * table: fix `#[cfg]` * cargo.toml: fix deps * lib.rs: docs * service: docs * readme: add files, update `# Documentation`, add `# Layers` * readme: `src/` file purpose * readme: `src/service/` file purpose * readme: `src/backend/` file purpose * fix `Cargo.lock` merge conflict * database: remove `gist.rs` * add to `constants.rs` * add top `//! comments` for files/modules * constants: add sanity-check test * service: add `only_one_database` test in `free.rs` * service: add `tests.rs` * remove unneeded markers + imports * backend: fix `get_range()`'s trait `impl` return * env: add `create_tables_if_needed()`, don't return `Option<Db>` * sort imports by `CONTRIBUTING.md` rules oops sorry boog * add `monero.rs` * monero: docs * database: add missing `RoTx/RwTx` inputs * backend: add missing `RoTx/RwTx` inputs * `monero.rs` trait -> free functions in `ops/` * pod: make methods infallible * ci: add `rustup update` step * service: use `Arc` instead of leaking, remove `db_read/db_write` * service: use `InfallibleOneshotReceiver` for readers * service: shutdown on error, add todos * service: remove `Request` * service: combine `ReadResponse` and `WriteResponse` * service: use `InfallibleOneshotReceiver` for writer * service: only spawn 1 writer, don't allow cloning writer handle * table: add associated `const CONSTANT_SIZE` * add `key.rs` + `trait Key`, add bound to `Table` * fix typos |