func NewStorage() *Storage {
var stor storage.Storage
var closeFn func() error
if storageUseFS {
for {
storageMu.Lock()
num := storageNum
storageNum++
storageMu.Unlock()
path := filepath.Join(os.TempDir(), fmt.Sprintf("goleveldb-test%d0%d0%d", os.Getuid(), os.Getpid(), num))
if _, err := os.Stat(path); os.IsNotExist(err) {
stor, err = storage.OpenFile(path)
ExpectWithOffset(1, err).NotTo(HaveOccurred(), "creating storage at %s", path)
closeFn = func() error {
if storageKeepFS {
return nil
}
return os.RemoveAll(path)
}
break
}
}
} else {
stor = storage.NewMemStorage()
}
s := &Storage{
Storage: stor,
closeFn: closeFn,
opens: make(map[uint64]bool),
}
s.stallCond.L = &s.mu
return s
}
func (s MemStore) Open(path string, cfg *config.Config) (driver.IDB, error) {
db := new(DB)
db.path = path
db.cfg = &cfg.LevelDB
db.initOpts()
var err error
db.db, err = leveldb.Open(storage.NewMemStorage(), db.opts)
if err != nil {
return nil, err
}
return db, nil
}