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Nuno Cruces
2023-09-01 15:54:40 +01:00
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@@ -8,17 +8,25 @@ Go module `github.com/ncruces/go-sqlite3` wraps a [WASM](https://webassembly.org
and uses [wazero](https://wazero.io/) to provide `cgo`-free SQLite bindings.
- Package [`github.com/ncruces/go-sqlite3`](https://pkg.go.dev/github.com/ncruces/go-sqlite3)
wraps the [C SQLite API](https://www.sqlite.org/cintro.html)
([example usage](https://pkg.go.dev/github.com/ncruces/go-sqlite3#example-package)).
wraps the [C SQLite API](https://www.sqlite.org/cintro.html)
([example usage](https://pkg.go.dev/github.com/ncruces/go-sqlite3#example-package)).
- Package [`github.com/ncruces/go-sqlite3/driver`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/driver)
provides a [`database/sql`](https://pkg.go.dev/database/sql) driver
([example usage](https://pkg.go.dev/github.com/ncruces/go-sqlite3/driver#example-package)).
provides a [`database/sql`](https://pkg.go.dev/database/sql) driver
([example usage](https://pkg.go.dev/github.com/ncruces/go-sqlite3/driver#example-package)).
- Package [`github.com/ncruces/go-sqlite3/embed`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/embed)
embeds a build of SQLite into your application.
embeds a build of SQLite into your application.
- Package [`github.com/ncruces/go-sqlite3/vfs`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs)
wraps the [C SQLite VFS API](https://www.sqlite.org/vfs.html) and provides a pure Go implementation.
wraps the [C SQLite VFS API](https://www.sqlite.org/vfs.html) and provides a pure Go implementation.
- Package [`github.com/ncruces/go-sqlite3/vfs/memdb`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/memdb)
implements an in-memory VFS.
- Package [`github.com/ncruces/go-sqlite3/vfs/readervfs`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/readervfs)
implements a VFS for immutable databases.
- Package [`github.com/ncruces/go-sqlite3/ext/unicode`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/unicode)
registers Unicode aware functions.
- Package [`github.com/ncruces/go-sqlite3/ext/stats`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/stats)
registers [statistics functions](https://www.oreilly.com/library/view/sql-in-a/9780596155322/ch04s02.html).
- Package [`github.com/ncruces/go-sqlite3/gormlite`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/gormlite)
provides a [GORM](https://gorm.io) driver.
provides a [GORM](https://gorm.io) driver.
### Caveats
@@ -35,7 +43,8 @@ To work around this limitation, SQLite is [patched](sqlite3/locking_mode.patch)
to always use `EXCLUSIVE` locking mode for WAL databases.
Because connection pooling is incompatible with `EXCLUSIVE` locking mode,
to open WAL databases you should disable connection pooling by calling
to use the [`database/sql`](https://pkg.go.dev/database/sql)
driver with WAL databases you should disable connection pooling by calling
[`db.SetMaxOpenConns(1)`](https://pkg.go.dev/database/sql#DB.SetMaxOpenConns).
#### POSIX Advisory Locks
@@ -53,6 +62,18 @@ On BSD Unixes, this module uses
BSD locks may _not_ be compatible with process-associated POSIX advisory locks
(they are on FreeBSD).
##### TL;DR
In all platforms for which this package builds,
it is safe to use it to access databases concurrently from multiple goroutines.
Additionally, on Windows, Linux, macOS, illumos and FreeBSD,
it is _also_ safe to use it to access databases concurrently
with _other_ implementations of SQLite.
On other BSDs, where this might be unsafe,
[this test](https://github.com/ncruces/go-sqlite3/blob/main/vfs/lock_test.go) should fail.
#### Testing
The pure Go VFS is tested by running SQLite's
@@ -82,4 +103,4 @@ Performance is tested by running
- [`modernc.org/sqlite`](https://pkg.go.dev/modernc.org/sqlite)
- [`crawshaw.io/sqlite`](https://pkg.go.dev/crawshaw.io/sqlite)
- [`github.com/mattn/go-sqlite3`](https://pkg.go.dev/github.com/mattn/go-sqlite3)
- [`github.com/zombiezen/go-sqlite`](https://pkg.go.dev/github.com/zombiezen/go-sqlite)
- [`github.com/zombiezen/go-sqlite`](https://pkg.go.dev/github.com/zombiezen/go-sqlite)