package wal

import (
	"database/sql"
	"sync"
)

var initLock sync.Mutex

func initWAL(walPath string) *sql.DB {
	initLock.Lock()
	defer initLock.Unlock()

	db, err := sql.Open("sqlite3", walPath+"?_journal=WAL")
	must(err)

	_, err = db.Exec(sqlSchema)
	must(err)
	return db
}