forked from mirror/ledisdb
178 lines
2.6 KiB
Go
178 lines
2.6 KiB
Go
package server
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import (
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"github.com/siddontang/ledisdb/config"
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"github.com/siddontang/ledisdb/ledis"
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"net"
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"net/http"
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"path"
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"strings"
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"sync"
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)
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type App struct {
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cfg *config.Config
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listener net.Listener
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httpListener net.Listener
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ldb *ledis.Ledis
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closed bool
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quit chan struct{}
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access *accessLog
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//for slave replication
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m *master
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info *info
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s *script
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// handle slaves
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slock sync.Mutex
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slaves map[*client]struct{}
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snap *snapshotStore
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}
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func netType(s string) string {
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if strings.Contains(s, "/") {
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return "unix"
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} else {
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return "tcp"
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}
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}
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func NewApp(cfg *config.Config) (*App, error) {
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if len(cfg.DataDir) == 0 {
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println("use default datadir %s", config.DefaultDataDir)
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cfg.DataDir = config.DefaultDataDir
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}
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app := new(App)
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app.quit = make(chan struct{})
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app.closed = false
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app.cfg = cfg
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app.slaves = make(map[*client]struct{})
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var err error
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if app.info, err = newInfo(app); err != nil {
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return nil, err
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}
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if app.listener, err = net.Listen(netType(cfg.Addr), cfg.Addr); err != nil {
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return nil, err
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}
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if len(cfg.HttpAddr) > 0 {
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if app.httpListener, err = net.Listen(netType(cfg.HttpAddr), cfg.HttpAddr); err != nil {
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return nil, err
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}
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}
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if len(cfg.AccessLog) > 0 {
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if path.Dir(cfg.AccessLog) == "." {
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app.access, err = newAcessLog(path.Join(cfg.DataDir, cfg.AccessLog))
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} else {
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app.access, err = newAcessLog(cfg.AccessLog)
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}
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if err != nil {
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return nil, err
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}
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}
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if app.snap, err = newSnapshotStore(cfg); err != nil {
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return nil, err
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}
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if len(app.cfg.SlaveOf) > 0 {
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//slave must readonly
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app.cfg.Readonly = true
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}
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if app.ldb, err = ledis.Open(cfg); err != nil {
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return nil, err
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}
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app.m = newMaster(app)
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app.openScript()
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app.ldb.AddNewLogEventHandler(app.publishNewLog)
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return app, nil
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}
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func (app *App) Close() {
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if app.closed {
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return
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}
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app.closed = true
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close(app.quit)
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app.listener.Close()
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if app.httpListener != nil {
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app.httpListener.Close()
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}
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app.closeScript()
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app.m.Close()
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app.snap.Close()
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if app.access != nil {
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app.access.Close()
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}
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app.ldb.Close()
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}
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func (app *App) Run() {
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if len(app.cfg.SlaveOf) > 0 {
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app.slaveof(app.cfg.SlaveOf, false, app.cfg.Readonly)
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}
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go app.httpServe()
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for !app.closed {
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conn, err := app.listener.Accept()
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if err != nil {
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continue
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}
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newClientRESP(conn, app)
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}
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}
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func (app *App) httpServe() {
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if app.httpListener == nil {
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return
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}
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mux := http.NewServeMux()
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mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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newClientHTTP(app, w, r)
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})
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svr := http.Server{Handler: mux}
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svr.Serve(app.httpListener)
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}
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func (app *App) Ledis() *ledis.Ledis {
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return app.ldb
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}
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