修改:代码包结构

This commit is contained in:
2023-07-02 00:46:04 +08:00
parent 66321ce7a8
commit 913a531f30
8 changed files with 157 additions and 226 deletions

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@@ -0,0 +1,65 @@
package monitor
import (
"encoding/json"
"log"
"net/http"
"os"
"path"
"zhub/internal/zsub"
)
func init() {
// 1.日志文件 定期分割归档
}
func StartWatch() {
dir, _ := os.Getwd()
webDir := path.Join(dir, "/public")
http.Handle("/", http.FileServer(http.Dir(webDir)))
http.HandleFunc("/info", info)
http.HandleFunc("/cleanup", cleanup)
http.HandleFunc("/retimer", retimer)
http.HandleFunc("/topic/publish", publish)
watchAddr := zsub.Conf.Service.Watch
log.Println("zhub.watch = ", watchAddr)
http.ListenAndServe(watchAddr, nil)
}
func publish(w http.ResponseWriter, r *http.Request) {
topic := r.FormValue("topic")
value := r.FormValue("value")
zsub.Hub.Publish(topic, value)
renderJson(w, "+ok")
}
// retimer 重载定时调度
func retimer(w http.ResponseWriter, r *http.Request) {
zsub.Hub.ReloadTimer()
renderJson(w, "+reload timer ok")
}
func cleanup(w http.ResponseWriter, r *http.Request) {
zsub.Hub.Clearup()
renderJson(w, "+OK")
}
func info(w http.ResponseWriter, r *http.Request) {
info := zsub.Info()
renderJson(w, info)
}
func renderJson(w http.ResponseWriter, d interface{}) {
var bytes []byte
if str, ok := d.(string); ok {
bytes = []byte(str)
} else {
bytes, _ = json.Marshal(d)
w.Header().Set("content-type", "application/json; charset=utf-8;")
}
w.Write(bytes)
}

197
internal/zsub/msg-accept.go Normal file
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@@ -0,0 +1,197 @@
package zsub
import (
"encoding/json"
"log"
"strconv"
"strings"
"time"
)
var funChan = make(chan func(), 1000)
func handleMessage(v Message) {
defer func() {
if r := recover(); r != nil {
log.Println("handleMessage Recovered:", r)
}
}()
c := v.Conn
rcmd := v.Rcmd
if len(rcmd) == 0 {
return
}
// ping reply
if strings.EqualFold("+pong", v.Rcmd[0]) {
v.Conn.pong = time.Now().Unix()
return
}
if Conf.Log.Level == "debug" && rcmd[0] != "auth" {
log.Printf("[%d] cmd: %s\n", v.Conn.sn, strings.Join(rcmd, " "))
} else if rcmd[0] == "auth" {
if len(rcmd) != 2 || strings.IndexAny(rcmd[1], "@") == -1 {
c.send("-Error: invalid password!")
return
}
inx := strings.IndexAny(rcmd[1], "@") //user@pwd
authKey := rcmd[1][:inx] //user
authValue := Conf.Auth[rcmd[1][:inx]] //pwd
if strings.EqualFold(authValue, rcmd[1][inx+1:]) {
c.auth = rcmd[1][:inx]
c.send("+Auth: ok!")
log.Printf("[%d] cmd: %s\n", v.Conn.sn, "auth "+authKey+"@******* "+"[OK]")
} else {
c.send("-Auth: invalid password!")
log.Printf("[%d] cmd: %s\n", v.Conn.sn, "auth "+authKey+"@******* "+"[Error]")
}
return
}
if strings.TrimSpace(c.auth) == "" && rcmd[0] != "auth" && Conf.Service.Auth {
c.send("-Auth: NOAUTH Authentication required:" + rcmd[0])
return
}
if len(rcmd) == 1 {
switch strings.ToLower(rcmd[0]) {
default:
// str start with strs anyone
var startWithAny = func(str string, strs ...string) bool {
for _, str := range strs {
if strings.Index(rcmd[0], str) == 0 {
return true
}
}
return false
}
arr := []string{"subscribe", "timer", "unsubscribe", "delay", "groupid"}
if startWithAny(rcmd[0], arr...) {
rcmd = strings.Split(rcmd[0], " ")
} else {
c.send("-Error: not supported:" + rcmd[0])
return
}
}
}
cmd := rcmd[0]
switch cmd {
case "groupid":
c.groupid = rcmd[1]
return
case "rpc":
// if rpc and no sub back error
if Hub.noSubscribe(rcmd[1]) {
rpcBody := make(map[string]string)
json.Unmarshal([]byte(rcmd[2]), &rpcBody)
log.Println("rpc no subscribe: ", rcmd[1])
ruk := rpcBody["ruk"]
Hub.Publish(strings.Split(ruk, "::")[0], "{'retcode': 404, 'retinfo': '服务离线!', 'ruk': '"+ruk+"'}")
return
}
if len(rcmd) != 3 {
c.send("-Error: publish para number![" + strings.Join(rcmd, " ") + "]")
} else {
/*if len(topicChan) < cap(topicChan) {
topicChan <- rcmd
}*/
Hub.Publish(rcmd[1], rcmd[2])
}
return
case "publish":
if len(rcmd) != 3 {
c.send("-Error: publish para number![" + strings.Join(rcmd, " ") + "]")
} else {
/*if len(topicChan) < cap(topicChan) {
topicChan <- rcmd
}*/
Hub.Publish(rcmd[1], rcmd[2])
}
return
default:
}
// 内部执行指令 加入执行队列
funChan <- func() {
defer func() {
if r := recover(); r != nil {
log.Println("funChan Recovered:", r)
}
}()
switch cmd {
case "subscribe":
// subscribe x y z
for _, topic := range rcmd[1:] {
c.subscribe(topic) // todo: 批量一次订阅
}
case "unsubscribe":
for _, topic := range rcmd[1:] {
c.unsubscribe(topic)
}
case "broadcast":
Hub.broadcast(rcmd[1], rcmd[2])
case "delay":
Hub.delay(rcmd, c)
case "timer":
for _, name := range rcmd[1:] {
Hub.timer([]string{"timer", name}, c) // append to timers
c.timers = append(c.timers, name) // append to conns
}
case "cmd":
if len(rcmd) == 1 {
return
}
switch rcmd[1] {
case "reload-timer":
Hub.ReloadTimer()
case "shutdown":
if !strings.EqualFold(c.groupid, "group-admin") {
return
}
Hub.shutdown()
}
case "lock":
// lock key uuid 5
if len(rcmd) != 4 {
c.send("-Error: lock para number![" + strings.Join(rcmd, " ") + "]")
return
}
d, _ := strconv.Atoi(rcmd[3])
Hub._lock(&Lock{key: rcmd[1], uuid: rcmd[2], duration: d})
case "unlock":
// unlock key uuid
if len(rcmd) != 3 {
c.send("-Error: unlock para number![" + strings.Join(rcmd, " ") + "]")
return
}
Hub._unlock(Lock{key: rcmd[1], uuid: rcmd[2]})
/*case "auth":
if len(rcmd) != 2 || strings.IndexAny(rcmd[1], "@") == -1 {
c.send("-Error: invalid password!")
return
}
inx := strings.IndexAny(rcmd[1], "@") //user@pwd
authKey := Conf.Auth[rcmd[1][:inx]]
if strings.EqualFold(authKey, rcmd[1][inx+1:]) {
c.auth = rcmd[1][:inx]
c.send("+Auth: ok!")
} else {
c.send("-Auth: invalid password!")
}
return*/
default:
c.send("-Error: default not supported:[" + strings.Join(rcmd, " ") + "]")
return
}
}
}

170
internal/zsub/zdb.go Normal file
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@@ -0,0 +1,170 @@
package zsub
import (
"bufio"
"fmt"
"log"
"os"
"strconv"
"strings"
"time"
)
var (
datadir string
)
// Message 数据封装
type Message struct {
Conn *ZConn
Rcmd []string
}
// Append file append
func Append(str string, fileName string) {
file, err := os.OpenFile(fileName, os.O_CREATE|os.O_WRONLY, os.ModeAppend)
if err != nil {
fmt.Println(err)
}
defer file.Close()
_, err = file.WriteString(str)
if err != nil {
log.Println(err)
}
}
func (s *ZSub) SaveData() {
defer func() {
if r := recover(); r != nil {
log.Println("SaveData Recovered:", r)
}
}()
s.Lock()
defer s.Unlock()
// ========================== delay save ===========================
func() {
if !s.delayup {
return
}
defer func() {
s.delayup = false
}()
err := os.Remove(datadir + "/delay.z")
if err != nil {
log.Println(err)
}
file, err := os.OpenFile(datadir+"/delay.z", os.O_CREATE|os.O_WRONLY, os.ModeAppend)
if err != nil {
fmt.Println(err)
}
defer file.Close()
writer := bufio.NewWriter(file)
_delays := s.delays
for _, delay := range _delays {
delayStr := fmt.Sprintf("%s %s %d\n", delay.Topic, delay.Value, delay.Exectime.Unix())
writer.WriteString(delayStr)
}
writer.Flush()
}()
// ========================== lock save ===========================
func() {
err := os.Remove(datadir + "/lock.z")
if err != nil {
log.Println(err)
}
str := ""
for _, locks := range s.locks {
for _, lock := range locks {
str += fmt.Sprintf("%s %s %d %d\n", lock.key, lock.uuid, lock.duration, lock.start)
break // 只记录获得锁的记录
}
}
Append(str, datadir+"/lock.z")
}()
}
func (s *ZSub) LoadData() {
s.loadDelay()
// s.loadLock()
}
func (s *ZSub) loadDelay() {
f, err := os.Open(datadir + "/delay.z")
if err != nil {
return
}
defer f.Close()
r := bufio.NewReader(f)
for {
bytes, err := r.ReadBytes('\n')
if err != nil {
return
}
line := string(bytes)
if len(line) == 0 {
continue
}
line = strings.Trim(line, " \r\n")
split := strings.Split(line, " ")
if len(split) != 3 {
continue
}
exectime, err := strconv.ParseInt(split[2], 10, 64)
if err != nil {
log.Println(err)
continue
}
if exectime < time.Now().Unix() {
continue
}
s.delay([]string{"delay", split[0], split[1], strconv.FormatInt((exectime-time.Now().Unix())*1000, 10)}, nil)
}
}
func (s *ZSub) loadLock() {
f, err := os.Open(datadir + "/lock.z")
if err != nil {
return
}
defer f.Close()
r := bufio.NewReader(f)
for {
bytes, err := r.ReadBytes('\n')
if err != nil {
return
}
line := string(bytes)
if len(line) == 0 {
continue
}
line = strings.Trim(line, " \r\n")
split := strings.Split(line, " ")
if len(split) != 4 {
continue
}
duration, err := strconv.Atoi(split[2])
start, err := strconv.ParseInt(split[3], 10, 64)
if start > 0 && time.Now().Unix()-start > 1 {
duration = int(time.Now().Unix() - start)
} else {
duration = 1
}
s._lock(&Lock{
key: split[0],
uuid: split[1],
duration: duration,
// start: start,
})
}
}

58
internal/zsub/zgroup.go Normal file
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@@ -0,0 +1,58 @@
package zsub
import (
"log"
"sync"
"sync/atomic"
)
type ZGroup struct { // ZGroup
sync.Mutex
conns []*ZConn
offset int32
chMsg chan string // 组消息即时投递
ztopic *ZTopic // 所属topic
}
func (g *ZGroup) appendTo(c *ZConn) {
c.Lock()
defer c.Unlock()
topic := g.ztopic.topic
// report subscribe topic check
if c.substoped[topic] != nil {
return
}
// create new goroutine consumer message
unsubChan := make(chan int, 0)
c.substoped[topic] = unsubChan
g.conns = c.appendTo(g.conns)
go func() {
for {
select {
case msg, ok := <-g.chMsg:
if !ok {
return
}
err := c.send("message", topic, msg)
if err != nil { // 失败处理
log.Println("topic send err:", err)
g.chMsg <- msg
return
}
//log.Printf("[ %d ] topic send: %s %s\n", c.sn, topic, msg)
atomic.AddInt32(&g.offset, 1)
case <-c.stoped:
return
case <-unsubChan:
c.Lock()
defer c.Unlock()
delete(c.substoped, topic)
return
}
}
}()
}

528
internal/zsub/zsub.go Normal file
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@@ -0,0 +1,528 @@
package zsub
import (
"bufio"
"fmt"
"log"
"net"
"os"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"unicode/utf8"
"zhub/internal/config"
)
var (
Conf config.Config
Hub = &ZSub{
topics: make(map[string]*ZTopic),
timers: make(map[string]*ZTimer),
delays: make(map[string]*ZDelay),
locks: make(map[string][]*Lock),
conns: make([]*ZConn, 0),
}
SN int32 = 1000
)
func init() {
// conn health check: T=10s, close>29s
go func() {
ticker := time.NewTicker(time.Second * 20)
defer ticker.Stop()
for range ticker.C {
funChan <- func() {
defer func() {
if r := recover(); r != nil {
log.Println("conn health check Recovered:", r)
}
}()
conns := make([]*ZConn, 0) // 需要关闭的连接
for _, c := range Hub.conns {
if c.ping > 0 && c.ping-c.pong > 19 {
conns = c.appendTo(conns)
continue
}
c.ping = time.Now().Unix()
if c.pong == 0 {
c.pong = c.ping
}
c.send("+ping")
}
// close
for _, c := range conns {
log.Printf("========================================= conn ping close:%s [%d] =========================================\n", (*c.conn).RemoteAddr(), c.sn)
c.close()
}
}
Hub.SaveData()
}
}()
}
type ZSub struct {
sync.RWMutex
topics map[string]*ZTopic
timers map[string]*ZTimer
delays map[string]*ZDelay
locks map[string][]*Lock
conns []*ZConn
delayup bool
}
type ZConn struct { //ZConn
sync.Mutex
sn int32 // 连接编号
conn *net.Conn
groupid string
topics []string
timers []string // 订阅、定时调度分别创建各自连接
stoped chan int // 关闭信号量
substoped map[string]chan int // 关闭信号量
ping int64 // 最后心跳时间
pong int64 // 最后心跳回复时间
auth string // 是否已验证授权
}
type Lock struct {
key string
uuid string
duration int
timer *time.Timer
start int64
//stop time.Time
}
func NewZConn(conn *net.Conn) *ZConn {
return &ZConn{
sn: atomic.AddInt32(&SN, 1), // 连接编号
conn: conn,
topics: []string{},
timers: []string{},
stoped: make(chan int, 0),
substoped: make(map[string]chan int),
}
}
/*
新增订阅:
1、找到对应主题信息
2、加入到对应组别如果是第一次的消费组 offset从当前 mcount 开始
3、若有待消费消息启动消费
*/
func (c *ZConn) subscribe(topic string) { // 新增订阅 zconn{}
Hub.Lock()
defer Hub.Unlock()
ztopic := Hub.topics[topic] //ZTopic
if ztopic == nil {
ztopic = &ZTopic{
groups: map[string]*ZGroup{},
topic: topic,
chMsg: make(chan string, 500),
}
ztopic.init()
Hub.topics[topic] = ztopic
}
zgroup := ztopic.groups[c.groupid] //ZGroup
if zgroup == nil {
zgroup = &ZGroup{
//conns: []*ZConn{},
ztopic: ztopic,
chMsg: make(chan string, 500),
}
ztopic.groups[c.groupid] = zgroup
}
zgroup.appendTo(c)
for i, item := range c.topics {
if strings.EqualFold(item, topic) {
c.topics = append(c.topics[:i], c.topics[i+1:]...)
}
}
c.topics = append(c.topics, topic)
}
/*
取消订阅:
*/
func (c *ZConn) unsubscribe(topic string) { // 取消订阅 zconn{}
c.Lock()
defer c.Unlock()
close(c.substoped[topic])
ztopic := Hub.topics[topic] //ZTopic
if ztopic == nil {
return
}
zgroup := ztopic.groups[c.groupid] //ZGroup
if zgroup == nil {
return
}
for i, item := range zgroup.conns {
if item == c {
zgroup.conns = append(zgroup.conns[:i], zgroup.conns[i+1:]...)
}
}
}
// send message
func (c *ZConn) send(vs ...string) error {
c.Lock()
defer c.Unlock()
var bytes []byte
if len(vs) == 1 {
bytes = []byte(vs[0] + "\r\n")
} else if len(vs) > 1 {
data := "*" + strconv.Itoa(len(vs)) + "\r\n"
for _, v := range vs {
data += "$" + strconv.Itoa(utf8.RuneCountInString(v)) + "\r\n"
data += v + "\r\n"
}
bytes = []byte(data)
}
_, err := (*c.conn).Write(bytes)
return err
}
func (c *ZConn) close() {
close(c.stoped)
// sub
for _, topic := range c.topics {
c.unsubscribe(topic)
}
// timer conn close
Hub.Lock()
defer Hub.Unlock()
for _, topic := range c.timers { // fixme: 数据逻辑交叉循环
timer := Hub.timers[topic]
if timer == nil {
continue
}
for i, item := range timer.Conns {
if item == c {
timer.Conns = append(timer.Conns[:i], timer.Conns[i+1:]...)
}
}
}
(*c.conn).Close()
}
func (c *ZConn) appendTo(arr []*ZConn) []*ZConn {
if arr == nil {
arr = make([]*ZConn, 0)
}
for i, item := range arr {
if item == c {
arr = append(arr[:i], arr[i+1:]...)
}
}
return append(arr, c)
}
func (c *ZConn) removeTo(arr []*ZConn) []*ZConn {
if arr == nil {
arr = make([]*ZConn, 0)
}
for i, item := range arr {
if item == c {
arr = append(arr[:i], arr[i+1:]...)
}
}
return arr
}
// StartServer ================== ZHub server =====================================
/*
StartServer
1、load history data
2、init server
*/
func StartServer(addr string, conf config.Config) {
Conf = conf
datadir = conf.Data.Dir
go func() {
for {
fun, ok := <-funChan
if !ok {
break
}
fun()
}
}()
// 重新加载[定时、延时]
go Hub.ReloadTimer()
go Hub.LoadData()
// 启动服务监听
listen, err := net.Listen("tcp", addr)
if err != nil {
log.Fatal(err)
}
log.Println("zhub.server =", addr)
for {
conn, err := listen.Accept()
if err != nil {
log.Println(err)
continue
}
zConn := NewZConn(&conn)
log.Printf("conn start: %s [%d]\n", conn.RemoteAddr(), zConn.sn)
go Hub.handlerConn(zConn)
}
}
// 连接处理
func (s *ZSub) handlerConn(c *ZConn) {
defer func() {
if r := recover(); r != nil {
log.Println("handlerConn Recovered:", r)
}
log.Println("conn closed:", (*c.conn).RemoteAddr(), "[", c.sn, "]")
}()
defer func() {
// conn remove to conns
funChan <- func() {
Hub.conns = c.removeTo(Hub.conns)
}
// close ZConn
c.close()
}()
// conn add to conns
funChan <- func() {
Hub.conns = c.appendTo(Hub.conns)
}
reader := bufio.NewReader(*c.conn)
for {
rcmd := make([]string, 0)
line, _, err := reader.ReadLine()
if err != nil {
log.Println(err)
return
}
if len(line) == 0 {
continue
}
switch string(line[:1]) {
case "*":
n, _ := strconv.Atoi(string(line[1:]))
for i := 0; i < n; i++ {
line, _, _ := reader.ReadLine()
clen := 0
if strings.EqualFold("$", string(line[:1])) {
clen, _ = strconv.Atoi(string(line[1:]))
}
var vx = ""
a:
if v, prefix, _ := reader.ReadLine(); prefix {
vx += string(v)
goto a
} else {
vx += string(v)
}
if clen > utf8.RuneCountInString(vx) {
vx += "\r\n"
goto a
}
rcmd = append(rcmd, vx)
}
default:
rcmd = append(rcmd, string(line))
}
if len(rcmd) == 0 {
continue
}
handleMessage(Message{Conn: c, Rcmd: rcmd})
}
}
/*
Publish topic message
1、send message to topic's chan
2、feedback send success to sender, and sending message to topic's subscripts
*/
func (s *ZSub) Publish(topic, msg string) {
s.RLock()
defer s.RUnlock()
ztopic := s.topics[topic] //ZTopic
if ztopic == nil {
return
}
ztopic.mcount++
// topic chan overload check
if len(ztopic.chMsg) == cap(ztopic.chMsg) {
log.Println(fmt.Sprintf("ztopic no cap: [%s %s]", topic, msg))
return
}
ztopic.chMsg <- msg
}
/*
send broadcast message
*/
func (s *ZSub) broadcast(topic, msg string) {
s.RLock()
defer s.RUnlock()
if strings.EqualFold(topic, "lock") {
log.Println("lock", msg)
}
ztopic := s.topics[topic] //ZTopic
if ztopic == nil {
return
}
for _, group := range ztopic.groups {
for _, conn := range group.conns {
conn.send("message", topic, msg)
}
}
}
/*
lock: lock key uuid t
unlock: unlock key uuid
*/
func (s *ZSub) _lock(lock *Lock) {
locks := s.locks[lock.key]
if locks == nil {
locks = make([]*Lock, 0)
}
if len(locks) == 0 { // lock success
lock.start = time.Now().Unix()
locks = append(locks, lock)
s.locks[lock.key] = locks
s.broadcast("lock", lock.uuid)
// 设置时间到解锁
locks[0].timer = time.NewTimer(time.Duration(locks[0].duration) * time.Second)
go func() {
select {
case <-locks[0].timer.C:
s._unlock(*locks[0])
}
}()
} else {
s.locks[lock.key] = append(locks, lock)
}
}
func (s *ZSub) _unlock(l Lock) {
locks := s.locks[l.key]
if locks == nil || len(locks) == 0 {
return
}
if strings.EqualFold(locks[0].uuid, l.uuid) {
locks[0].timer.Stop()
locks = locks[1:]
s.locks[l.key] = locks
}
if len(s.locks[l.key]) > 0 { // next lock
s.broadcast("lock", s.locks[l.key][0].uuid)
s.locks[l.key][0].start = time.Now().Unix()
s.locks[l.key][0].timer = time.NewTimer(time.Duration(s.locks[l.key][0].duration) * time.Second)
go func() {
select {
case <-s.locks[l.key][0].timer.C:
s._unlock(*s.locks[l.key][0])
}
}()
}
}
func (s *ZSub) shutdown() {
s.SaveData()
os.Exit(0)
}
func Info() map[string]interface{} {
// topics
topics := map[string]interface{}{}
for s, topic := range Hub.topics {
// {groups:[{name:xxx,size:xx}]}
arr := make([]map[string]interface{}, 0)
for groupname, group := range topic.groups {
arr = append(arr, map[string]interface{}{
"name": groupname,
"subsize": len(group.conns),
"offset": group.offset,
"mcount": topic.mcount,
})
}
topics[s] = arr
}
// conns
conns := make([]interface{}, 0)
for _, c := range Hub.conns {
m := make(map[string]interface{}, 0)
m["remoteaddr"] = (*c.conn).RemoteAddr()
m["groupid"] = c.groupid
m["topics"] = c.topics
m["timers"] = c.timers
m["auth"] = c.auth
conns = append(conns, m)
}
info := map[string]interface{}{
"topics": topics,
"topicsize": len(topics),
"timersize": len(Hub.timers),
"conns": conns,
"connsize": len(Hub.conns),
}
return info
}
func (s *ZSub) Clearup() {
for tn, topic := range s.topics {
for _, group := range topic.groups {
if len(group.conns) > 0 || topic.mcount > group.offset {
goto a
}
}
close(topic.chMsg)
delete(s.topics, tn)
a:
}
}
func (s *ZSub) noSubscribe(topic string) bool {
zTopic := s.topics[topic]
if zTopic == nil || len(zTopic.groups) == 0 {
return true
}
for _, g := range zTopic.groups {
if len(g.conns) > 0 {
return false
}
}
return true
}

184
internal/zsub/ztimer.go Normal file
View File

@@ -0,0 +1,184 @@
package zsub
import (
"database/sql"
"fmt"
_ "github.com/go-sql-driver/mysql"
"github.com/robfig/cron"
"log"
"regexp"
"strconv"
"strings"
"time"
)
type ZTimer struct {
Conns []*ZConn
Expr string
Topic string
Cron *cron.Cron
Ticker *time.Ticker
Single bool
}
type ZDelay struct {
Topic string
Value string
Exectime time.Time
Timer *time.Timer
}
// delay topic value 100 -> publish topic value
func (s *ZSub) delay(rcmd []string, c *ZConn) {
s.Lock()
defer func() {
s.Unlock()
// s.SaveData()
s.delayup = true
}()
if len(rcmd) != 4 {
c.send("-Error: subscribe para number!")
return
}
t, err := strconv.ParseInt(rcmd[3], 10, 64)
if err != nil {
c.send("-Error: " + strings.Join(rcmd, " "))
return
}
delay := s.delays[rcmd[1]+"-"+rcmd[2]]
if delay != nil {
if t < 0 {
delay.Timer.Stop()
delete(s.delays, rcmd[1]+"-"+rcmd[2])
return
}
delay.Timer.Reset(time.Duration(t) * time.Millisecond)
} else {
if t < 0 {
return
}
delay := &ZDelay{
Topic: rcmd[1],
Value: rcmd[2],
Exectime: time.Now().Add(time.Duration(t) * time.Millisecond),
Timer: time.NewTimer(time.Duration(t) * time.Millisecond),
}
s.delays[rcmd[1]+"-"+rcmd[2]] = delay
go func() {
select {
case <-delay.Timer.C:
log.Println("delay send:", rcmd[1], rcmd[2])
Hub.Publish(rcmd[1], rcmd[2])
funChan <- func() {
delete(s.delays, rcmd[1]+"-"+rcmd[2])
}
}
}()
}
}
/*
["Timer", Topic, expr, 0|1]
*/
func (s *ZSub) timer(rcmd []string, c *ZConn) {
s.Lock()
defer s.Unlock()
timer := s.timers[rcmd[1]]
if timer == nil {
timer = &ZTimer{
Conns: []*ZConn{},
Topic: rcmd[1],
}
s.timers[rcmd[1]] = timer
}
if c != nil {
timer.Conns = c.appendTo(timer.Conns)
}
if len(rcmd) == 4 && !strings.EqualFold(timer.Expr, rcmd[2]) {
timer.Expr = rcmd[2]
if timer.Cron != nil {
timer.Cron.Stop()
}
if timer.Ticker != nil {
timer.Ticker.Stop()
}
var timerFun = func() {
for _, conn := range timer.Conns {
log.Println("Timer send:", timer.Topic)
err := conn.send("Timer", timer.Topic)
if timer.Single && err == nil {
break
}
}
}
r, _ := regexp.Compile("^\\d+[d,H,m,s]$")
expr := timer.Expr
if r.MatchString(expr) {
n, _ := strconv.Atoi(expr[:len(expr)-1])
_n := time.Duration(n)
var ticker *time.Ticker
switch expr[len(expr)-1:] {
case "d":
ticker = time.NewTicker(_n * time.Hour * 24)
case "H":
ticker = time.NewTicker(_n * time.Hour)
case "m":
ticker = time.NewTicker(_n * time.Minute)
case "s":
ticker = time.NewTicker(_n * time.Second)
}
timer.Ticker = ticker
go func() {
for range ticker.C {
timerFun()
}
}()
} else {
timer.Cron = func() *cron.Cron {
c := cron.New()
c.AddFunc(timer.Expr, timerFun)
go c.Run()
return c
}()
}
//Timer.configSave()
}
if len(rcmd) == 4 && (strings.EqualFold("a", rcmd[3]) != timer.Single) {
timer.Single = strings.EqualFold("a", rcmd[3])
//Timer.configSave()
}
}
func (s *ZSub) ReloadTimer() {
db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=utf8",
Conf.Ztimer.Db.User,
Conf.Ztimer.Db.Password,
Conf.Ztimer.Db.Addr,
Conf.Ztimer.Db.Database,
))
if err != nil {
log.Println(err)
return
}
defer db.Close()
rows, err := db.Query("SELECT t.`name`, IF(t.`status`=10,t.`expr`,''), IF(t.`single`=1,'a','x') 'single' FROM tasktimer t ORDER BY t.`timerid`")
if err != nil {
log.Println(err)
return
}
for rows.Next() {
var name string
var expr string
var single string
rows.Scan(&name, &expr, &single)
s.timer([]string{"Timer", name, expr, single}, nil) //["Timer", Topic, expr, a|x]
}
}

36
internal/zsub/ztopic.go Normal file
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@@ -0,0 +1,36 @@
package zsub
import (
"fmt"
"log"
"sync"
)
type ZTopic struct { //ZTopic
sync.Mutex
groups map[string]*ZGroup
mcount int32
topic string // 主题名称
chMsg chan string // 主题消息投递
}
// 主题消息发送
func (t *ZTopic) init() {
go func() {
for {
msg, ok := <-t.chMsg
if !ok {
break
}
for groupName, group := range t.groups {
// zgroup chan overload check
if len(group.chMsg) == cap(group.chMsg) {
log.Println(fmt.Sprintf("zgroup no cap: [%s.%s %s]", groupName, t.topic, msg))
continue
}
group.chMsg <- msg
}
}
}()
}