mattn

package module

v0.0.0-...-b9372bb Latest Latest Go to latest Published: Dec 14, 2025 License: MIT Imports: 12 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/paulstuart/sqlitezstd

Links

Open Source Insights

Documentation ¶

Overview ¶

Package mattn provides a Zstandard VFS adapter for mattn/go-sqlite3. This adapter enables read-only access to Zstandard-compressed SQLite databases using the CGO-based mattn/go-sqlite3 driver.

Note: This requires CGO to be enabled.

Usage:

import _ "github.com/paulstuart/sqlitezstd/driver/mattn"

db, err := sql.Open("sqlite3", "database.sqlite.zst?vfs=zstd")

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type ZstdFile ¶

type ZstdFile struct {
	// contains filtered or unexported fields
}

ZstdFile represents an open Zstandard compressed database file for mattn driver.

func (*ZstdFile) CheckReservedLock ¶

func (z *ZstdFile) CheckReservedLock() (bool, error)

func (*ZstdFile) Close ¶

func (z *ZstdFile) Close() error

func (*ZstdFile) DeviceCharacteristics ¶

func (z *ZstdFile) DeviceCharacteristics() sqlite3vfs.DeviceCharacteristic

func (*ZstdFile) FileSize ¶

func (z *ZstdFile) FileSize() (int64, error)

func (*ZstdFile) Lock ¶

func (z *ZstdFile) Lock(elock sqlite3vfs.LockType) error

func (*ZstdFile) ReadAt ¶

func (z *ZstdFile) ReadAt(p []byte, off int64) (int, error)

func (*ZstdFile) SectorSize ¶

func (z *ZstdFile) SectorSize() int64

func (*ZstdFile) Sync ¶

func (z *ZstdFile) Sync(flag sqlite3vfs.SyncType) error

func (*ZstdFile) Truncate ¶

func (z *ZstdFile) Truncate(size int64) error

func (*ZstdFile) Unlock ¶

func (z *ZstdFile) Unlock(elock sqlite3vfs.LockType) error

func (*ZstdFile) WriteAt ¶

func (z *ZstdFile) WriteAt(p []byte, off int64) (int, error)

type ZstdVFS ¶

type ZstdVFS struct{}

ZstdVFS implements the VFS interface for Zstandard compressed databases.

func (*ZstdVFS) Access ¶

func (z *ZstdVFS) Access(name string, flags sqlite3vfs.AccessFlag) (bool, error)

Access checks whether a file exists and can be accessed with the specified permissions.

func (*ZstdVFS) Delete ¶

func (z *ZstdVFS) Delete(name string, dirSync bool) error

Delete always returns an error indicating that the VFS is read-only.

func (*ZstdVFS) FullPathname ¶

func (z *ZstdVFS) FullPathname(name string) string

FullPathname returns the full pathname of a file.

func (*ZstdVFS) Open ¶

func (z *ZstdVFS) Open(name string, flags sqlite3vfs.OpenFlag) (sqlite3vfs.File, sqlite3vfs.OpenFlag, error)

Open opens a compressed database file for reading.

Source Files ¶

View all Source files

vfs.go

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL