ledisdb/server/app.go

150 lines
2.2 KiB
Go

package server
import (
"github.com/siddontang/ledisdb/config"
"github.com/siddontang/ledisdb/ledis"
"net"
"net/http"
"path"
"strings"
)
type App struct {
cfg *config.Config
listener net.Listener
httpListener net.Listener
ldb *ledis.Ledis
closed bool
quit chan struct{}
access *accessLog
//for slave replication
m *master
info *info
}
func netType(s string) string {
if strings.Contains(s, "/") {
return "unix"
} else {
return "tcp"
}
}
func NewApp(cfg *config.Config) (*App, error) {
if len(cfg.DataDir) == 0 {
println("use default datadir %s", config.DefaultDataDir)
cfg.DataDir = config.DefaultDataDir
}
app := new(App)
app.quit = make(chan struct{})
app.closed = false
app.cfg = cfg
var err error
if app.info, err = newInfo(app); err != nil {
return nil, err
}
if app.listener, err = net.Listen(netType(cfg.Addr), cfg.Addr); err != nil {
return nil, err
}
if len(cfg.HttpAddr) > 0 {
if app.httpListener, err = net.Listen(netType(cfg.HttpAddr), cfg.HttpAddr); err != nil {
return nil, err
}
}
if len(cfg.AccessLog) > 0 {
if path.Dir(cfg.AccessLog) == "." {
app.access, err = newAcessLog(path.Join(cfg.DataDir, cfg.AccessLog))
} else {
app.access, err = newAcessLog(cfg.AccessLog)
}
if err != nil {
return nil, err
}
}
if app.ldb, err = ledis.Open(cfg); err != nil {
return nil, err
}
app.m = newMaster(app)
return app, nil
}
func (app *App) Close() {
if app.closed {
return
}
app.closed = true
close(app.quit)
app.listener.Close()
if app.httpListener != nil {
app.httpListener.Close()
}
app.m.Close()
if app.access != nil {
app.access.Close()
}
app.ldb.Close()
}
func (app *App) Run() {
if len(app.cfg.SlaveOf) > 0 {
app.slaveof(app.cfg.SlaveOf)
}
go app.httpServe()
for !app.closed {
conn, err := app.listener.Accept()
if err != nil {
continue
}
newClientRESP(conn, app)
}
}
func (app *App) httpServe() {
if app.httpListener == nil {
return
}
mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
newClientHTTP(app, w, r)
})
svr := http.Server{Handler: mux}
svr.Serve(app.httpListener)
}
func (app *App) Ledis() *ledis.Ledis {
return app.ldb
}