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register.go
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register.go
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//go:build cgo
package litestream
import (
"database/sql"
"database/sql/driver"
"github.com/mattn/go-sqlite3"
)
var Functions = make(map[string]any)
func init() {
sql.Register("litestream", &sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) (err error) {
for name, fn := range Functions {
err = conn.RegisterFunc(name, fn, true)
if err != nil {
return
}
}
err = DoSetTrace(conn)
if err != nil {
return
}
if err = conn.SetFileControlInt("main", sqlite3.SQLITE_FCNTL_PERSIST_WAL, 1); err != nil {
return
}
if _, err = conn.Exec("PRAGMA foreign_keys = ON", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA journal_mode = WAL", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA wal_autocheckpoint = 0", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA synchronous = NORMAL", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA busy_timeout = 5000", []driver.Value{}); err != nil {
return
}
return
},
})
sql.Register("sqlite3-fk-wal", &sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) (err error) {
for name, fn := range Functions {
err = conn.RegisterFunc(name, fn, true)
if err != nil {
return
}
}
err = DoSetTrace(conn)
if err != nil {
return
}
if _, err = conn.Exec("PRAGMA foreign_keys = ON", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA journal_mode = WAL", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA synchronous = NORMAL", []driver.Value{}); err != nil {
return
}
if _, err = conn.Exec("PRAGMA busy_timeout = 5000", []driver.Value{}); err != nil {
return
}
return
},
})
}