func initFilePath() (string, error) {
cfg := kaiju.GetConfig()
path := filepath.Join(kaiju.ConfigFileDir(), cfg.DataDir)
if err := os.MkdirAll(path, os.ModePerm); err != nil {
return "", err
} else {
return path, nil
}
}
func (u *outputDB) Commit(tag uint32, force bool) error {
if force || u.db.WAValueLen() > kaiju.GetConfig().MaxKdbWAValueLen {
log.Infof("Committing blocks up to number %d ...", tag)
err := u.db.Commit(tag)
log.Infof("Committed blocks up to number %d", tag)
return err
}
return nil
}
func (c *Cold) Init() error {
path, err := initFilePath()
if err != nil {
return err
}
f, _, err := openFile(path, kaiju.GetConfig().HeadersFileName)
if err != nil {
return err
}
c.hfile = f
c.h = newHeaders(f)
c.h.loadHeaders()
dbf, dbfi, err := openFile(path, kaiju.GetConfig().KdbFileName)
if err != nil {
return err
}
waf, _, err := openFile(path, kaiju.GetConfig().KdbWAFileName)
if err != nil {
return err
}
var db *kdb.KDB
if dbfi.Size() == 0 {
db, err = kdb.New(kaiju.GetConfig().KDBCapacity, dbf, waf)
if err != nil {
return err
}
} else {
db, err = kdb.Load(dbf, waf)
if err != nil {
return err
}
}
c.dbFile = dbf
c.waFile = waf
c.db = newOutputDB(db)
return nil
}
func TestScanKeys(t *testing.T) {
cfg := kaiju.GetConfig()
path := filepath.Join(kaiju.ConfigFileDir(), cfg.DataDir)
f := openFile(t, path, cfg.KdbFileName)
wa := openFile(t, path, cfg.KdbWAFileName)
db, err := Load(f, wa)
if err != nil {
t.Errorf("Failed load db %s", err)
}
r, g, err := db.enumerate(nil)
if err != nil {
t.Errorf("Failed to scan keys: %s", err)
}
t.Logf("KDB scanKeys %d %d", r, g)
}
// Start KNet module, should be called before any other calls in knet
func Start(count int) (<-chan struct{}, error) {
if instance != nil {
return nil, errors.New("KNet.Start should only be called once")
}
pm, err := peer.Init()
if err != nil {
return nil, err
}
cc := newCC()
instance = &KNet{cc, pm}
seeds := kaiju.GetConfig().SeedPeers
for _, ip := range seeds {
instance.cc.addSeedAddr(ip, kaiju.ListenPort)
}
instance.cc.start([]peer.Monitor{instance.cc})
return pm.Wait(count), nil
}
func _TestRebuild(t *testing.T) {
cfg := kaiju.GetConfig()
path := filepath.Join(kaiju.ConfigFileDir(), cfg.DataDir)
f := openFile(t, path, cfg.KdbFileName)
wa := openFile(t, path, cfg.KdbWAFileName)
rebf := createFile(t, path, cfg.KdbFileName+".reb")
rebwa := createFile(t, path, cfg.KdbWAFileName+".reb")
db, err := Load(f, wa)
if err != nil {
t.Errorf("Failed to load db %s", err)
}
db2, err := db.Rebuild(cfg.KDBCapacity, rebf, rebwa)
if err != nil {
t.Errorf("Failed to rebuild db %s", err)
}
r, g, err := db2.enumerate(nil)
if err != nil {
t.Errorf("Failed to scan keys: %s", err)
}
t.Logf("KDB scanKeys %d %d", r, g)
}
func TestKDB(t *testing.T) {
cfg := kaiju.GetConfig()
path := filepath.Join(kaiju.ConfigFileDir(), cfg.TempDataDir)
os.MkdirAll(path, os.ModePerm)
f := createFile(t, path, "testkdb.dat")
wa := createFile(t, path, "testkdb.wa")
capacity := uint32(1000)
db, dberr := New(capacity, f, wa)
if dberr != nil {
t.Errorf("Failed to create KDB: %s", dberr)
}
for i := uint32(0); i < capacity/2; i++ {
writeUint32(t, db, uint32(i), uint32(i))
}
commit(t, db, 1)
for i := uint32(0); i < capacity/2; i += 3 {
removeUint32(t, db, uint32(i), uint32(i))
}
commit(t, db, 2)
for i := uint32(0); i < capacity/2; i += 3 {
writeUint32(t, db, uint32(i), uint32(i))
}
commit(t, db, 3)
for i := capacity / 2; i < capacity; i++ {
writeUint32(t, db, uint32(i), uint32(i))
}
commit(t, db, 4)
for i := uint32(0); i < capacity; i++ {
testUint32(t, db, uint32(i), uint32(i))
}
for i := uint32(0); i < capacity/10000; i++ {
removeUint32(t, db, uint32(i), uint32(i))
}
for i := uint32(0); i < capacity/10000; i++ {
testNotUint32(t, db, uint32(i), uint32(i))
}
for i := uint32(0); i < capacity/10000; i++ {
writeUint32(t, db, uint32(i), uint32(i))
}
for i := uint32(0); i < capacity; i++ {
testUint32(t, db, uint32(i), uint32(i))
}
r, g, err := db.enumerate(nil)
if dberr != nil {
t.Errorf("Failed to scan keys: %s", err)
}
t.Logf("KDB:keys %d %d", r, g)
f.Seek(0, 0)
wa.Seek(0, 0)
db, dberr = Load(f, wa)
if dberr != nil {
t.Errorf("Failed to load KDB: %s", dberr)
} else {
for i := uint32(0); i < capacity; i++ {
testUint32(t, db, uint32(i), uint32(i))
}
}
r, g, err = db.enumerate(nil)
if dberr != nil {
t.Errorf("Failed to scan keys: %s", err)
}
t.Logf("KDB:keys %d %d", r, g)
if closeErr := f.Close(); closeErr != nil {
t.Errorf("Error closing file: %s", closeErr)
}
}