//apend data
func (self *SegmentLog) Appends(logs []*oplog) error {
//if closed
if self.isOpen == 0 {
return errors.New(fmt.Sprintf("SegmentLog Is Closed!|%s", self.path))
}
length := int64(0)
for _, lo := range logs {
tmp := lo.marshal()
for {
l, err := self.bw.Write(tmp)
length += int64(l)
if nil != err && err != io.ErrShortWrite {
log.Error("SegmentLog|Append|FAIL|%s|%d/%d", err, l, len(tmp))
return err
} else if nil == err {
break
} else {
self.bw.Reset(self.wf)
log.Error("SegmentLog|Append|FAIL|%s", err)
}
tmp = tmp[l:]
}
}
//flush
self.bw.Flush()
//move offset
atomic.AddInt64(&self.offset, int64(length))
return nil
}
//获取订阅关系并添加watcher
func (self *ZKManager) GetBindAndWatch(topic string) (map[string][]*Binding, error) {
path := KITEQ_SUB + "/" + topic
exist, _, _, err := self.session.ExistsW(path)
if !exist {
//不存在订阅关系的时候需要创建该topic和
return make(map[string][]*Binding, 0), err
}
//获取topic下的所有qserver
groupIds, _, _, err := self.session.ChildrenW(path)
if nil != err {
log.Error("ZKManager|GetBindAndWatch|GroupID|FAIL|%s|%s\n", err, path)
return nil, err
}
hps := make(map[string][]*Binding, len(groupIds))
//获取topic对应的所有groupId下的订阅关系
for _, groupId := range groupIds {
tmppath := path + "/" + groupId
binds, err := self.getBindData(tmppath)
if nil != err {
log.Error("GetBindAndWatch|getBindData|FAIL|%s|%s\n", tmppath, err)
continue
}
//去掉分组后面的-bind
gid := strings.TrimSuffix(groupId, "-bind")
hps[gid] = binds
}
return hps, nil
}
func (self *KiteMysqlStore) Query(messageId string) *MessageEntity {
var entity *MessageEntity
s := self.sqlwrapper.hashQuerySQL(messageId)
rows, err := self.dbshard.FindSlave(messageId).Query(s, messageId)
if nil != err {
log.Error("KiteMysqlStore|Query|FAIL|%s|%s\n", err, messageId)
return nil
}
defer rows.Close()
if rows.Next() {
entity = &MessageEntity{}
fc := self.convertor.convertFields(entity, filternothing)
err := rows.Scan(fc...)
if nil != err {
log.Error("KiteMysqlStore|Query|SCAN|FAIL|%s|%s\n", err, messageId)
return nil
}
self.convertor.Convert2Entity(fc, entity, filternothing)
switch entity.MsgType {
case protocol.CMD_BYTES_MESSAGE:
//do nothing
case protocol.CMD_STRING_MESSAGE:
entity.Body = string(entity.GetBody().([]byte))
}
}
return entity
}
//没有body的entity
func (self *KiteMysqlStore) PageQueryEntity(hashKey string, kiteServer string, nextDeliveryTime int64, startIdx, limit int) (bool, []*MessageEntity) {
s := self.sqlwrapper.hashPQSQL(hashKey)
// log.Println(s)
rows, err := self.dbshard.FindSlave(hashKey).
Query(s, kiteServer, time.Now().Unix(), nextDeliveryTime, startIdx, limit+1)
if err != nil {
log.Error("KiteMysqlStore|Query|FAIL|%s|%s\n", err, hashKey)
return false, nil
}
defer rows.Close()
results := make([]*MessageEntity, 0, limit)
for rows.Next() {
entity := &MessageEntity{}
fc := self.convertor.convertFields(entity, filterbody)
err := rows.Scan(fc...)
if err != nil {
log.Error("KiteMysqlStore|PageQueryEntity|FAIL|%s|%s|%d|%d\n", err, kiteServer, nextDeliveryTime, startIdx)
} else {
self.convertor.Convert2Entity(fc, entity, filterbody)
results = append(results, entity)
}
}
if len(results) > limit {
return true, results[:limit]
} else {
return false, results
}
}
//发布订阅关系
func (self *ZKManager) PublishBindings(groupId string, bindings []*Binding) error {
//按topic分组
groupBind := make(map[string][]*Binding, 10)
for _, b := range bindings {
g, ok := groupBind[b.Topic]
if !ok {
g = make([]*Binding, 0, 2)
}
b.GroupId = groupId
g = append(g, b)
groupBind[b.Topic] = g
}
for topic, binds := range groupBind {
data, err := MarshalBinds(binds)
if nil != err {
log.Error("ZKManager|PublishBindings|MarshalBind|FAIL|%s|%s|%t\n", err, groupId, binds)
return err
}
createType := zk.CreatePersistent
path := KITEQ_SUB + "/" + topic
//注册对应topic的groupId //注册订阅信息
succpath, err := self.registePath(path, groupId+"-bind", createType, data)
if nil != err {
log.Error("ZKManager|PublishTopic|Bind|FAIL|%s|%s/%s\n", err, path, binds)
return err
} else {
log.Info("ZKManager|PublishTopic|Bind|SUCC|%s|%s\n", succpath, binds)
}
}
return nil
}
//内部创建节点的方法
func (self *ZKManager) innerCreatePath(tmppath string, data []byte, createType zk.CreateType) error {
exist, _, _, err := self.session.ExistsW(tmppath)
if nil == err && !exist {
_, err := self.session.Create(tmppath, data, createType, zk.WorldACL(zk.PermAll))
if nil != err {
log.Error("ZKManager|innerCreatePath|FAIL|%s|%s\n", err, tmppath)
return err
}
//做一下校验等待
for i := 0; i < 5; i++ {
exist, _, _ = self.session.Exists(tmppath)
if !exist {
time.Sleep(time.Duration(i*100) * time.Millisecond)
} else {
break
}
}
return err
} else if nil != err {
log.Error("ZKManager|innerCreatePath|FAIL|%s\n", err)
return err
} else if nil != data {
//存在该节点，推送新数据
_, err := self.session.Set(tmppath, data, -1)
if nil != err {
log.Error("ZKManager|innerCreatePath|PUSH DATA|FAIL|%s|%s|%s\n", err, tmppath, string(data))
return err
}
}
return nil
}
func (self *Segment) Close() error {
self.Lock()
defer self.Unlock()
if atomic.CompareAndSwapInt32(&self.isOpen, 1, 0) {
//close segment log
self.slog.Close()
//close segment
err := self.bw.Flush()
if nil != err {
log.Error("Segment|Close|Writer|FLUSH|FAIL|%s|%s|%s\n", err, self.path, self.name)
}
//free chunk memory
self.chunks = nil
err = self.wf.Close()
if nil != err {
log.Error("Segment|Close|Write FD|FAIL|%s|%s|%s\n", err, self.path, self.name)
return err
} else {
err = self.rf.Close()
if nil != err {
log.Error("Segment|Close|Read FD|FAIL|%s|%s|%s\n", err, self.path, self.name)
}
return err
}
}
return nil
}
func (self convertor) Convert2Params(entity *store.MessageEntity) []interface{} {
val := reflect.ValueOf(*entity)
fvs := make([]interface{}, 0, len(self.columns))
for _, v := range self.columns {
var fv interface{}
if v.columnName == "body" {
if entity.MsgType == protocol.CMD_STRING_MESSAGE {
fv = []byte(entity.GetBody().(string))
} else if entity.MsgType == protocol.CMD_BYTES_MESSAGE {
fv = entity.GetBody().([]byte)
} else {
log.Error("convertor|Convert2Params|UnSupport MESSAGE TYPE|%s\n", entity.MsgType)
}
} else {
f := val.FieldByName(v.fieldName)
// log.Debug("convertor|Convert2Params|%s|%s\n", v.fieldName, f)
switch f.Kind() {
case reflect.Ptr:
header, ok := f.Interface().(*protocol.Header)
if ok {
//头部用Pb序列化
data, err := protocol.MarshalPbMessage(header)
if err != nil {
log.Error("convertor|Convert2Params|Marshal|HEAD|FAIL|%s|%s\n", err, f.Addr().Interface())
return nil
}
fv = data
} else {
log.Error("convertor|Convert2Params|Not protocol.Header PRT |FAIL|%s\n", f.Addr())
return nil
}
case reflect.Slice, reflect.Array:
if f.Type().Elem().Kind() == reflect.String {
data, err := json.Marshal(f.Interface())
if nil != err {
log.Error("convertor|Convert2Params|Marshal|Slice|FAIL||%s\n", err)
return nil
}
fv = string(data)
} else {
fv = f.Interface()
}
default:
fv = f.Interface()
}
}
fvs = append(fvs, &fv)
}
return fvs
}
func (self *KiteMysqlStore) Start() {
count := SHARD_SEED
//创建Hash的channel
batchDelChan := make([]chan string, 0, count)
batchUpChan := make([]chan *MessageEntity, 0, count)
batchComChan := make([]chan string, 0, count)
for i := 0; i < count; i++ {
batchUpChan = append(batchUpChan, make(chan *MessageEntity, self.batchUpSize*2))
batchDelChan = append(batchDelChan, make(chan string, self.batchDelSize*2))
batchComChan = append(batchComChan, make(chan string, self.batchUpSize*2))
}
//批量的channel
self.batchUpChan = batchUpChan
self.batchDelChan = batchDelChan
self.batchComChan = batchComChan
//创建每种批量的preparedstmt
stmts := make(map[batchType][][]*StmtPool, 4)
for k, v := range self.sqlwrapper.batchSQL {
btype := k
pool := make([][]*StmtPool, 0, self.dbshard.ShardNum())
//对每个shard构建stmt的pool
for i := 0; i < self.dbshard.ShardNum(); i++ {
innerPool := make([]*StmtPool, 0, self.dbshard.HashNum())
for j, s := range v {
psql := s
db := self.dbshard.FindShardById(i*self.dbshard.HashNum() + j).master
err, p := NewStmtPool(5, 10, 20, 1*time.Minute, func() (error, *sql.Stmt) {
stmt, err := db.Prepare(psql)
if nil != err {
log.Error("StmtPool|Create Stmt|FAIL|%s|%s\n", err, psql)
return err, nil
}
return nil, stmt
})
if nil != err {
log.Error("NewKiteMysql|NewStmtPool|FAIL|%s\n", err)
panic(err)
}
innerPool = append(innerPool, p)
}
pool = append(pool, innerPool)
}
stmts[btype] = pool
}
self.stmtPools = stmts
for i := 0; i < count; i++ {
// log.Printf("KiteMysqlStore|start|SQL|%s\n|%s\n", sqlu, sqld)
self.startBatch(i, self.batchUpChan[i],
self.batchDelChan[i], self.batchComChan[i])
}
log.Info("KiteMysqlStore|Start...")
}
func (self *KiteMysqlStore) batchUpdate(hashId int, entity []*MessageEntity) bool {
if len(entity) <= 0 {
return true
}
p := self.stmtPool(UPDATE, entity[0].MessageId)
err, stmt := p.Get()
if nil != err {
log.Error("KiteMysqlStore|batchUpdate|GET STMT|FAIL|%s|%d\n", err, hashId)
return false
}
defer p.Release(stmt)
args := make([]interface{}, 0, 5)
var errs error
for _, e := range entity {
args = args[:0]
sg, err := json.Marshal(e.SuccGroups)
if nil != err {
log.Error("KiteMysqlStore|batchUpdate|SUCC GROUP|MARSHAL|FAIL|%s|%s|%s\n", err, e.MessageId, e.SuccGroups)
errs = err
continue
}
args = append(args, sg)
fg, err := json.Marshal(e.FailGroups)
if nil != err {
log.Error("KiteMysqlStore|batchUpdate|FAIL GROUP|MARSHAL|FAIL|%s|%s|%s\n", err, e.MessageId, e.FailGroups)
errs = err
continue
}
args = append(args, fg)
//设置一下下一次投递时间
args = append(args, e.NextDeliverTime)
args = append(args, e.DeliverCount)
args = append(args, e.MessageId)
_, err = stmt.Exec(args...)
if nil != err {
log.Error("KiteMysqlStore|batchUpdate|FAIL|%s|%s\n", err, e)
errs = err
}
}
return nil == errs
}
func (self *KiteFileStore) Query(messageId string) *MessageEntity {
lock, _, el := self.hash(messageId)
lock.RLock()
defer lock.RUnlock()
e, ok := el[messageId]
if !ok {
return nil
}
v := e.Value.(*opBody)
//wait save done
self.waitSaveDone(v)
data, err := self.snapshot.Query(v.Id)
if nil != err {
// log.Error("KiteFileStore|Query|Entity|FAIL|%s|%d", err, v.Id)
return nil
}
var msg interface{}
msgType := data[0]
switch msgType {
case protocol.CMD_BYTES_MESSAGE:
var bms protocol.BytesMessage
err = protocol.UnmarshalPbMessage(data[1:], &bms)
msg = &bms
case protocol.CMD_STRING_MESSAGE:
var sms protocol.StringMessage
err = protocol.UnmarshalPbMessage(data[1:], &sms)
msg = &sms
default:
log.Error("KiteFileStore|Query|INVALID|MSGTYPE|%d", msgType)
return nil
}
if nil != err {
log.Error("KiteFileStore|Query|UnmarshalPbMessage|Entity|FAIL|%s", err)
return nil
} else {
entity := NewMessageEntity(protocol.NewQMessage(msg))
//merge data
entity.Commit = v.Commit
entity.FailGroups = v.FailGroups
entity.SuccGroups = v.SuccGroups
entity.NextDeliverTime = v.NextDeliverTime
entity.DeliverCount = v.DeliverCount
return entity
}
}
func (self *Segment) Open(do func(ol *oplog)) error {
self.Lock()
defer self.Unlock()
if atomic.CompareAndSwapInt32(&self.isOpen, 0, 1) {
// log.Info("Segment|Open|BEGIN|%s|%s", self.path, self.name)
var rf *os.File
var wf *os.File
_, err := os.Stat(self.path)
//file exist
if os.IsNotExist(err) {
_, err := os.Create(self.path)
if nil != err {
log.Error("Segment|Create|FAIL|%s|%s", err, self.path)
return err
}
}
//file not exist create file
wf, err = os.OpenFile(self.path, os.O_RDWR|os.O_APPEND, os.ModePerm)
if nil != err {
log.Error("Segment|Open|FAIL|%s|%s", err, self.name)
return err
}
rf, err = os.OpenFile(self.path, os.O_RDWR, os.ModePerm)
if nil != err {
log.Error("Segment|Open|FAIL|%s|%s", err, self.name)
return err
}
self.rf = rf
self.wf = wf
//buffer
self.br = bufio.NewReader(rf)
//load
self.loadCheck()
// //seek
// self.wf.Seek(self.offset, 0)
self.bw = bufio.NewWriter(wf)
//op segment log
self.slog.Open()
//recover segment
self.recover(do)
total, n, d, e := self.stat()
log.Info("Segment|Open|SUCC|%s|total:%d,n:%d,d:%d,e:%d", self.name, total, n, d, e)
return nil
}
return nil
}
//traverse oplog
func (self *SegmentLog) Replay(do func(l *oplog)) {
self.Open()
offset := int64(0)
tmp := make([]byte, 1024)
//seek to head
self.rf.Seek(0, 0)
self.br.Reset(self.rf)
for {
var length int32
err := binary.Read(self.br, binary.BigEndian, &length)
if nil != err {
if err == io.EOF {
self.br.Reset(self.rf)
break
}
log.Warn("SegmentLog|Replay|LEN|%s|Skip...", err)
continue
}
// log.Debug("SegmentLog|Replay|LEN|%d", length)
if int(length) > cap(tmp) {
grow := make([]byte, int(length)-cap(tmp))
tmp = append(tmp, grow...)
}
err = binary.Read(self.br, binary.BigEndian, tmp[:int(length)-4])
if nil != err {
self.br.Reset(self.rf)
log.Error("SegmentLog|Replay|Data|%s", err)
break
}
var ol oplog
r := bytes.NewReader(tmp[:int(length)-4])
deco := gob.NewDecoder(r)
err = deco.Decode(&ol)
if nil != err {
log.Error("SegmentLog|Replay|unmarshal|oplog|FAIL|%s", err)
continue
}
// log.Debug("SegmentLog|Replay|oplog|%s", ol)
do(&ol)
//line
offset += int64(length)
}
self.offset = int64(offset)
}
//订阅关系topic下的group发生变更
func (self *BindExchanger) NodeChange(path string, eventType ZkEvent, childNode []string) {
//如果是订阅关系变更则处理
if strings.HasPrefix(path, KITEQ_SUB) {
//获取topic
split := strings.Split(path, "/")
if len(split) < 4 {
if eventType == Created {
//不合法的订阅璐姐
log.Error("BindExchanger|NodeChange|INVALID SUB PATH |%s|%t\n", path, childNode)
}
return
}
//获取topic
topic := split[3]
self.lock.Lock()
defer self.lock.Unlock()
//如果topic下无订阅分组节点，直接删除该topic
if len(childNode) <= 0 {
self.onBindChanged(topic, "", nil)
log.Error("BindExchanger|NodeChange|无子节点|%s|%s\n", path, childNode)
return
}
// //对当前的topic的分组进行重新设置
switch eventType {
case Created, Child:
bm, err := self.zkmanager.GetBindAndWatch(topic)
if nil != err {
log.Error("BindExchanger|NodeChange|获取订阅关系失败|%s|%s\n", path, childNode)
}
//如果topic下没有订阅关系分组则青琉璃
if len(bm) > 0 {
for groupId, bs := range bm {
self.onBindChanged(topic, groupId, bs)
}
} else {
//删除具体某个分组
self.onBindChanged(topic, "", nil)
}
}
} else {
// log.Warn("BindExchanger|NodeChange|非SUB节点变更|%s|%s\n", path, childNode)
}
}
//创建物理连接
func dial(hostport string) (*net.TCPConn, error) {
//连接
remoteAddr, err_r := net.ResolveTCPAddr("tcp4", hostport)
if nil != err_r {
log.Error("KiteClientManager|RECONNECT|RESOLVE ADDR |FAIL|remote:%s\n", err_r)
return nil, err_r
}
conn, err := net.DialTCP("tcp4", nil, remoteAddr)
if nil != err {
log.Error("KiteClientManager|RECONNECT|%s|FAIL|%s\n", hostport, err)
return nil, err
}
return conn, nil
}
func (self *MessageStore) recoverSnapshot() {
//current segmentid
if len(self.segments) > 0 {
//replay log
for i, s := range self.segments {
err := s.Open(self.replay)
if nil != err {
log.Error("MessageStore|recoverSnapshot|Fail|%s", err, s.slog.path)
panic(err)
}
//last segments
if i == len(self.segments)-1 {
if nil != err {
panic("MessageStore|Load Last Segment|FAIL|" + err.Error())
}
//set snapshost status
if len(s.chunks) > 0 {
self.chunkId = s.chunks[len(s.chunks)-1].id
}
}
log.Debug("MessageStore|recoverSnapshot|%s", s.name)
}
}
}
func (self *KiteQServer) Start() {
self.remotingServer = server.NewRemotionServer(self.kc.server, self.kc.rc,
func(rclient *client.RemotingClient, p *packet.Packet) {
event := pipe.NewPacketEvent(rclient, p)
err := self.pipeline.FireWork(event)
if nil != err {
log.Error("RemotingServer|onPacketRecieve|FAIL|%s|%t\n", err, p)
} else {
// log.Debug("RemotingServer|onPacketRecieve|SUCC|%s|%t\n", rclient.RemoteAddr(), packet)
}
})
err := self.remotingServer.ListenAndServer()
if nil != err {
log.Crashf("KiteQServer|RemotionServer|START|FAIL|%s|%s\n", err, self.kc.server)
} else {
log.Info("KiteQServer|RemotionServer|START|SUCC|%s\n", self.kc.server)
}
//推送可发送的topic列表并且获取了对应topic下的订阅关系
succ := self.exchanger.PushQServer(self.kc.server, self.kc.topics)
if !succ {
log.Crashf("KiteQServer|PushQServer|FAIL|%s|%s\n", err, self.kc.topics)
} else {
log.Info("KiteQServer|PushQServer|SUCC|%s\n", self.kc.topics)
}
//开启流量统计
self.kc.flowstat.Start()
//开启recover
self.recoverManager.Start()
}
func (self *Message) Encode() (error, []byte) {
framebuff := new(bytes.Buffer)
//write item body
for _, v := range self.items {
//如果是采用tlv形式的字节编码则写入类型、长度
datat := reflect.TypeOf(v.data).Kind()
if datat != reflect.Uint8 && datat != reflect.Uint16 &&
datat != reflect.Uint32 && datat != reflect.Uint64 {
binary.Write(framebuff, binary.BigEndian, v.length)
}
err := binary.Write(framebuff, binary.BigEndian, v.data)
if nil != err {
log.Error("MESSAGE|ENCODE|FAIL|%s|%s", err.Error(), v)
return err, nil
}
}
buff := make([]byte, 0, 1+framebuff.Len())
bytebuff := bytes.NewBuffer(buff)
//frame 的command类型
binary.Write(bytebuff, binary.BigEndian, uint8(self.op))
//frame body
binary.Write(bytebuff, binary.BigEndian, framebuff.Bytes())
return nil, bytebuff.Bytes()
}
//apend data
func (self *SegmentLog) Append(ol *oplog) error {
//if closed
if self.isOpen == 0 {
return errors.New(fmt.Sprintf("SegmentLog Is Closed!|%s", self.path))
}
buff := ol.marshal()
tmp := buff
for {
l, err := self.bw.Write(tmp)
if nil != err && err != io.ErrShortWrite {
log.Error("SegmentLog|Append|FAIL|%s|%d/%d", err, l, len(tmp))
return err
} else if nil == err {
break
} else {
self.bw.Reset(self.wf)
}
tmp = tmp[l:]
}
self.bw.Flush()
//line
atomic.AddInt64(&self.offset, int64(len(buff)))
return nil
}
//发布topic对应的server
func (self *ZKManager) PublishQServer(hostport string, topics []string) error {
for _, topic := range topics {
qpath := KITEQ_SERVER + "/" + topic
spath := KITEQ_SUB + "/" + topic
ppath := KITEQ_PUB + "/" + topic
//创建发送和订阅的根节点
self.traverseCreatePath(ppath, nil, zk.CreatePersistent)
// self.session.ExistsW(ppath)
self.traverseCreatePath(spath, nil, zk.CreatePersistent)
self.session.ExistsW(spath)
//先删除当前这个临时节点再注册 避免监听不到临时节点变更的事件
self.session.Delete(qpath+"/"+hostport, -1)
//注册当前节点
path, err := self.registePath(qpath, hostport, zk.CreateEphemeral, nil)
if nil != err {
log.Error("ZKManager|PublishQServer|FAIL|%s|%s/%s\n", err, qpath, hostport)
return err
}
log.Info("ZKManager|PublishQServer|SUCC|%s\n", path)
}
//注册当前的kiteqserver
self.session.Delete(KITEQ_ALIVE_SERVERS+"/"+hostport, -1)
self.registePath(KITEQ_ALIVE_SERVERS, hostport, zk.CreateEphemeral, nil)
self.registePath(KITEQ_ALL_SERVERS, hostport, zk.CreatePersistent, nil)
return nil
}
func main() {
runtime.GOMAXPROCS(8)
startMode := flag.Int("startMode", 1, " 0 为mock ,1 为正式")
bindAddr := flag.String("bindAddr", ":17070", "-bindAddr=:17070")
certPath := flag.String("certPath", "./cert.pem", "-certPath=xxxxxx/cert.pem or -certPath=http://")
keyPath := flag.String("keyPath", "./key.pem", "-keyPath=xxxxxx/key.pem or -keyPath=http://")
runMode := flag.Int("runMode", 0, "-runMode=1(online) ,0(sandbox)")
storeCap := flag.Int("storeCap", 1000, "-storeCap=100000 //重发链条长度")
logxml := flag.String("log", "log.xml", "-log=log.xml //log配置文件")
pprofPort := flag.String("pprof", ":9090", "pprof=:9090 //端口")
flag.Parse()
go func() {
if len(*pprofPort) > 0 {
addr, _ := net.ResolveTCPAddr("tcp4", *bindAddr)
log.Error(http.ListenAndServe(addr.IP.String()+*pprofPort, nil))
}
}()
//加载log4go的配置
log.LoadConfiguration(*logxml)
//设置启动项
option := server.NewOption(*startMode, *bindAddr, *certPath, *keyPath, *runMode, *storeCap)
apnsserver := server.NewApnsHttpServer(option)
ch := make(chan os.Signal, 1)
signal.Notify(ch, os.Kill)
//kill掉的server
<-ch
apnsserver.Shutdown()
log.Info("APNS SERVER IS STOPPED!")
}
func (self *StmtPool) enhancedPool(size int) error {
//初始化一下最小的Poolsize,让入到idlepool中
for i := 0; i < size; i++ {
j := 0
var err error
var stmt *sql.Stmt
for ; j < 3; j++ {
err, stmt = self.dialFunc()
if nil != err {
log.Error("POOL_FACTORY|CREATE STMT|INIT|FAIL|%s\n", err)
} else {
break
}
}
if j >= 3 {
return errors.New("POOL_FACTORY|CREATE STMT|INIT|FAIL|%s" + err.Error())
}
idlestmt := &IdleStmt{stmt: stmt, expiredTime: (time.Now().Add(self.idletime))}
self.idlePool.PushFront(idlestmt)
self.numActive++
}
return nil
}
//发布topic对应的server
func (self *ZKManager) PublishQServer(hostport string, topics []string) error {
for _, topic := range topics {
qpath := KITEQ_SERVER + "/" + topic
spath := KITEQ_SUB + "/" + topic
ppath := KITEQ_PUB + "/" + topic
//创建发送和订阅的根节点
self.traverseCreatePath(ppath, nil, zk.CreatePersistent)
// self.session.ExistsW(ppath)
self.traverseCreatePath(spath, nil, zk.CreatePersistent)
self.session.ExistsW(spath)
//注册当前节点
path, err := self.registePath(qpath, hostport, zk.CreateEphemeral, nil)
if nil != err {
log.Error("ZKManager|PublishQServer|FAIL|%s|%s/%s\n", err, qpath, hostport)
return err
}
log.Info("ZKManager|PublishQServer|SUCC|%s\n", path)
}
return nil
}
//监听数据变更
func (self *ZKManager) listenEvent() {
for !self.isClose {
//根据zk的文档 watcher机制是无法保证可靠的，其次需要在每次处理完watcher后要重新注册watcher
change := <-self.eventChan
path := change.Path
switch change.Type {
case zk.EventSession:
if change.State == zk.StateExpired {
log.Warn("ZKManager|OnSessionExpired!")
//zk链接开则需要重新链接重新推送
self.watcher.OnSessionExpired()
}
case zk.EventNodeDeleted:
self.session.ExistsW(path)
self.watcher.NodeChange(path, ZkEvent(change.Type), []string{})
// log.Info("ZKManager|listenEvent|%s|%s\n", path, change)
case zk.EventNodeCreated, zk.EventNodeChildrenChanged:
childnodes, _, _, err := self.session.ChildrenW(path)
if nil != err {
log.Error("ZKManager|listenEvent|CD|%s|%s|%t\n", err, path, change.Type)
} else {
self.watcher.NodeChange(path, ZkEvent(change.Type), childnodes)
// log.Info("ZKManager|listenEvent|%s|%s|%s\n", path, change, childnodes)
}
case zk.EventNodeDataChanged:
split := strings.Split(path, "/")
//如果不是bind级别的变更则忽略
if len(split) < 5 || strings.LastIndex(split[4], "-bind") <= 0 {
continue
}
//获取一下数据
binds, err := self.getBindData(path)
if nil != err {
log.Error("ZKManager|listenEvent|Changed|Get DATA|FAIL|%s|%s\n", err, path)
//忽略
continue
}
self.watcher.DataChange(path, binds)
// log.Info("ZKManager|listenEvent|%s|%s|%s\n", path, change, binds)
}
}
}
//apend data
func (self *Segment) Append(chunks []*Chunk) error {
//if closed
if self.isOpen == 0 {
return errors.New(fmt.Sprintf("Segment Is Closed!|%s", self.name))
}
length := int64(0)
for _, c := range chunks {
c.sid = self.sid
c.offset = self.offset + length
tmp := c.marshal()
for {
l, err := self.bw.Write(tmp)
length += int64(l)
if nil != err && err != io.ErrShortWrite {
log.Error("Segment|Append|FAIL|%s|%d/%d", err, l, len(tmp))
return err
} else if nil == err {
break
} else {
self.bw.Reset(self.wf)
log.Error("Segment|Append|FAIL|%s", err)
}
tmp = tmp[l:]
}
}
//flush
self.bw.Flush()
// log.Debug("Segment|Append|SUCC|%d/%d", l, len(buff))
//tmp cache chunk
if nil == self.chunks {
self.chunks = make([]*Chunk, 0, 1000)
}
self.chunks = append(self.chunks, chunks...)
//sort
// sort.Sort(self.chunks)
//move offset
self.offset += int64(length)
self.byteSize += int32(length)
return nil
}
func WrapPayLoad(payload *PayLoad) *Item {
payloadJson := payload.Marshal()
if nil == payloadJson || len(payloadJson) > 256 {
log.Error("WRAPPAYLOAD|FAIL|%s|len:%d\n", payloadJson, len(payloadJson))
return nil
}
return &Item{id: PAY_LOAD, length: uint16(len(payloadJson)), data: payloadJson}
}
func (self *Segment) loadChunk(c *Chunk) {
if c.length-CHUNK_HEADER <= 0 {
log.Error("Segment|LoadChunk|INVALID HEADER|%s|%d|%d", self.name, c.id, c.length)
return
}
data := make([]byte, c.length-CHUNK_HEADER)
//seek chunk
self.rf.Seek(c.offset+CHUNK_HEADER, 0)
self.br.Reset(self.rf)
dl, err := io.ReadFull(self.br, data)
if nil != err || dl != cap(data) {
log.Error("Segment|LoadChunk|Read Data|FAIL|%s|%s|%d|%d/%d", err, self.name, c.id, c.length, dl)
return
}
c.data = data
}
func WrapDeviceToken(token string) *Item {
decodeToken, err := hex.DecodeString(token)
if nil != err {
log.Error("WRAPTOKE|FAIL|INVALID TOKEN|%s|%s\n", token, err.Error())
return nil
}
return &Item{id: DEVICE_TOKEN, length: uint16(len(decodeToken)), data: decodeToken}
}
func NewPayLoad(sound string, badge int, alert Alert) *PayLoad {
data, err := json.Marshal(alert)
if nil != err {
log.Error("NEWPAYLOAD|FAIL|ERROR|%s\n", err)
return nil
}
aps := Aps{Alert: string(data), Sound: sound, Badge: badge}
return &PayLoad{aps: aps, extParams: make(map[string]interface{})}
}
//真正写入网络的流
func (self *Session) write0(tlv *packet.Packet) {
p := packet.MarshalPacket(tlv)
if nil == p || len(p) <= 0 {
log.Error("Session|write0|MarshalPacket|FAIL|EMPTY PACKET|%s", tlv)
//如果是同步写出
return
}
l := 0
tmp := p
for {
length, err := self.bw.Write(tmp)
if nil != err {
log.Error("Session|write0|conn|%s|FAIL|%s|%d/%d", self.remoteAddr, err, length, len(tmp))
//链接是关闭的
if err != io.ErrShortWrite {
self.Close()
return
}
//如果没有写够则再写一次
if err == io.ErrShortWrite {
self.bw.Reset(self.conn)
}
}
l += length
//write finish
if l == len(p) {
break
}
tmp = p[l:]
}
// //flush
self.bw.Flush()
if nil != self.rc.FlowStat {
self.rc.FlowStat.WriteFlow.Incr(1)
self.rc.FlowStat.WriteBytesFlow.Incr(int32(len(p)))
}
}