Golang hashmap.New函数代码示例

func TestSplitBufferPubOp4(t *testing.T) {
	c := &client{subs: hashmap.New()}
	pubAll := []byte("PUB foo 11\r\nhello world\r\n")
	pub := pubAll[:12]

	if err := c.parse(pub); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if !bytes.Equal(c.pa.subject, []byte("foo")) {
		t.Fatalf("Unexpected subject: '%s' vs '%s'\n", c.pa.subject, "foo")
	}

	// Simulate next read of network, make sure pub state is saved
	// until msg payload has cleared.
	copy(pubAll, "XXXXXXXXXXXX")
	if !bytes.Equal(c.pa.subject, []byte("foo")) {
		t.Fatalf("Unexpected subject: '%s' vs '%s'\n", c.pa.subject, "foo")
	}
	if !bytes.Equal(c.pa.reply, []byte("")) {
		t.Fatalf("Unexpected reply: '%s' vs '%s'\n", c.pa.reply, "")
	}
	if !bytes.Equal(c.pa.szb, []byte("11")) {
		t.Fatalf("Unexpected size bytes: '%s' vs '%s'\n", c.pa.szb, "11")
	}
}

// Lock should be held
func (c *client) initClient() {
	s := c.srv
	c.cid = atomic.AddUint64(&s.gcid, 1)
	c.bw = bufio.NewWriterSize(c.nc, defaultBufSize)
	c.subs = hashmap.New()

	// This is a scratch buffer used for processMsg()
	// The msg header starts with "MSG ",
	// in bytes that is [77 83 71 32].
	c.msgb = [msgScratchSize]byte{77, 83, 71, 32}

	// This is to track pending clients that have data to be flushed
	// after we process inbound msgs from our own connection.
	c.pcd = make(map[*client]struct{})

	// No clue why, but this stalls and kills performance on Mac (Mavericks).
	//
	//	if ip, ok := c.nc.(*net.TCPConn); ok {
	//		ip.SetReadBuffer(defaultBufSize)
	//		ip.SetWriteBuffer(2*defaultBufSize)
	//	}

	// Set the Ping timer
	c.setPingTimer()

	// Spin up the read loop.
	go c.readLoop()
}

func TestSplitBufferUnsubOp(t *testing.T) {
	s := &Server{sl: sublist.New()}
	c := &client{srv: s, subs: hashmap.New()}

	subop := []byte("SUB foo 1024\r\n")
	if err := c.parse(subop); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != OP_START {
		t.Fatalf("Expected OP_START state vs %d\n", c.state)
	}

	unsubop := []byte("UNSUB 1024\r\n")
	unsubop1 := unsubop[:8]
	unsubop2 := unsubop[8:]

	if err := c.parse(unsubop1); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != UNSUB_ARG {
		t.Fatalf("Expected UNSUB_ARG state vs %d\n", c.state)
	}
	if err := c.parse(unsubop2); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != OP_START {
		t.Fatalf("Expected OP_START state vs %d\n", c.state)
	}
	r := s.sl.Match([]byte("foo"))
	if r != nil && len(r) != 0 {
		t.Fatalf("Should be no subscriptions in results: %+v\n", r)
	}
}

func TestSplitBufferSubOp(t *testing.T) {
	s := &Server{sl: sublist.New()}
	c := &client{srv: s, subs: hashmap.New()}

	subop := []byte("SUB foo 1\r\n")
	subop1 := subop[:6]
	subop2 := subop[6:]

	if err := c.parse(subop1); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != SUB_ARG {
		t.Fatalf("Expected SUB_ARG state vs %d\n", c.state)
	}
	if err := c.parse(subop2); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != OP_START {
		t.Fatalf("Expected OP_START state vs %d\n", c.state)
	}
	r := s.sl.Match([]byte("foo"))
	if r == nil || len(r) != 1 {
		t.Fatalf("Did not match subscription properly: %+v\n", r)
	}
	sub := r[0].(*subscription)
	if !bytes.Equal(sub.subject, []byte("foo")) {
		t.Fatalf("Subject did not match expected 'foo' : '%s'\n", sub.subject)
	}
	if !bytes.Equal(sub.sid, []byte("1")) {
		t.Fatalf("Sid did not match expected '1' : '%s'\n", sub.sid)
	}
	if sub.queue != nil {
		t.Fatalf("Received a non-nil queue: '%s'\n", sub.queue)
	}
}

// New will create a default sublist
func New() *Sublist {
	return &Sublist{
		root:  newLevel(),
		cache: hashmap.New(),
		cmax:  defaultCacheMax,
		stats: stats{since: time.Now()},
	}
}

func TestSplitBufferPubOp5(t *testing.T) {
	c := &client{subs: hashmap.New()}
	pubAll := []byte("PUB foo 11\r\nhello world\r\n")

	// Splits need to be on MSG_END now too, so make sure we check that.
	// Split between \r and \n
	pub := pubAll[:len(pubAll)-1]

	if err := c.parse(pub); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.msgBuf == nil {
		t.Fatalf("msgBuf should not be nil!\n")
	}
	if !bytes.Equal(c.msgBuf, []byte("hello world\r")) {
		t.Fatalf("c.msgBuf did not snaphot the msg")
	}
}

func TestSplitBufferPubOp2(t *testing.T) {
	c := &client{subs: hashmap.New()}
	pub := []byte("PUB foo.bar INBOX.22 11\r\nhello world\r\n")
	pub1 := pub[:30]
	pub2 := pub[30:]

	if err := c.parse(pub1); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != MSG_PAYLOAD {
		t.Fatalf("Expected MSG_PAYLOAD state vs %d\n", c.state)
	}
	if err := c.parse(pub2); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != OP_START {
		t.Fatalf("Expected OP_START state vs %d\n", c.state)
	}
}

func TestSplitBufferPubOp(t *testing.T) {
	c := &client{subs: hashmap.New()}
	pub := []byte("PUB foo.bar INBOX.22 11\r\nhello world\r")
	pub1 := pub[:2]
	pub2 := pub[2:9]
	pub3 := pub[9:15]
	pub4 := pub[15:22]
	pub5 := pub[22:25]
	pub6 := pub[25:33]
	pub7 := pub[33:]

	if err := c.parse(pub1); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != OP_PU {
		t.Fatalf("Expected OP_PU state vs %d\n", c.state)
	}
	if err := c.parse(pub2); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != PUB_ARG {
		t.Fatalf("Expected OP_PU state vs %d\n", c.state)
	}
	if err := c.parse(pub3); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != PUB_ARG {
		t.Fatalf("Expected OP_PU state vs %d\n", c.state)
	}
	if err := c.parse(pub4); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != PUB_ARG {
		t.Fatalf("Expected PUB_ARG state vs %d\n", c.state)
	}
	if err := c.parse(pub5); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != MSG_PAYLOAD {
		t.Fatalf("Expected MSG_PAYLOAD state vs %d\n", c.state)
	}

	// Check c.pa
	if !bytes.Equal(c.pa.subject, []byte("foo.bar")) {
		t.Fatalf("PUB arg subject incorrect: '%s'\n", c.pa.subject)
	}
	if !bytes.Equal(c.pa.reply, []byte("INBOX.22")) {
		t.Fatalf("PUB arg reply subject incorrect: '%s'\n", c.pa.reply)
	}
	if c.pa.size != 11 {
		t.Fatalf("PUB arg msg size incorrect: %d\n", c.pa.size)
	}
	if err := c.parse(pub6); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != MSG_PAYLOAD {
		t.Fatalf("Expected MSG_PAYLOAD state vs %d\n", c.state)
	}
	if err := c.parse(pub7); err != nil {
		t.Fatalf("Unexpected parse error: %v\n", err)
	}
	if c.state != MSG_END {
		t.Fatalf("Expected MSG_END state vs %d\n", c.state)
	}
}

// Create a new default level. We use FNV1A as the hash
// algortihm for the tokens, which should be short.
func newLevel() *level {
	h := hashmap.New()
	h.Hash = hash.FNV1A
	return &level{nodes: h}
}