func ZappyMustCompress(inb []byte) (outb []byte) {
outb, err := zappy.Encode(nil, inb)
if err != nil {
panic(err)
}
return outb
}
func newConn(sock *net.UDPConn, local, remote net.Addr, id int) *Conn {
sock.SetDeadline(time.Time{})
conn := &Conn{conn: sock, local: local, remote: remote, closed: false, quit: make(chan bool), tmp: make([]byte, CacheBuffSize*2), tmp2: make([]byte, CacheBuffSize), sendChan: make(chan string, 10), checkCanWrite: make(chan chan bool), readChan: make(chan cache), overTime: time.Now().Unix() + 30, fecWriteId: 0, fecSendC: 0}
debug("create", id)
conn.kcp = ikcp.Ikcp_create(uint32(id), conn)
conn.kcp.Output = udp_output
conn.SetKcp(DefaultKcpSetting())
if *bCompress {
conn.compressCache = make([]byte, CacheBuffSize*2)
conn.compressSendChan = make(chan []byte, 100)
go func() {
for {
select {
case b := <-conn.compressSendChan:
enc, er := zappy.Encode(conn.compressCache, b)
if er != nil {
log.Println("compress error", er.Error())
go conn.Close()
break
}
//log.Println("compress", len(b), len(enc))
conn.conn.WriteTo(enc, conn.remote)
case <-conn.quit:
return
}
}
}()
}
return conn
}
func Test(t *testing.T) {
if n := len(value100); n != 100 {
t.Fatal(n)
}
c, err := zappy.Encode(nil, value100)
if err != nil {
t.Fatal(err)
}
if n := len(c); n != 50 {
t.Fatal(n)
}
}
func (a *Allocator) makeUsedBlock(dst []byte, b []byte) (w []byte, rqAtoms int, cc byte, err error) {
cc = tagNotCompressed
w = b
var n int
if n = len(b); n > maxRq {
return nil, 0, 0, &ErrINVAL{"Allocator.makeUsedBlock: content size out of limits", n}
}
rqAtoms = n2atoms(n)
if a.Compress && n > 14 { // attempt compression
if dst, err = zappy.Encode(dst, b); err != nil {
return
}
n2 := len(dst)
if rqAtoms2 := n2atoms(n2); rqAtoms2 < rqAtoms { // compression saved at least a single atom
w, n, rqAtoms, cc = dst, n2, rqAtoms2, tagCompressed
}
}
return
}
