tracker/server/store/store.go

117 lines
2.5 KiB
Go

// Copyright 2016 The Chihaya Authors. All rights reserved.
// Use of this source code is governed by the BSD 2-Clause license,
// which can be found in the LICENSE file.
package store
import (
"errors"
"log"
"sync"
"time"
"gopkg.in/yaml.v2"
"github.com/chihaya/chihaya/config"
"github.com/chihaya/chihaya/server"
"github.com/chihaya/chihaya/tracker"
)
var theStore *Store
func init() {
server.Register("store", constructor)
}
func constructor(srvcfg *config.ServerConfig, tkr *tracker.Tracker) (server.Server, error) {
if theStore == nil {
cfg, err := newConfig(srvcfg)
if err != nil {
return nil, errors.New("store: invalid store config: " + err.Error())
}
cs, err := OpenClientStore(cfg)
if err != nil {
return nil, err
}
ps, err := OpenPeerStore(cfg)
if err != nil {
return nil, err
}
ips, err := OpenIPStore(cfg)
if err != nil {
return nil, err
}
theStore = &Store{
cfg: cfg,
tkr: tkr,
shutdown: make(chan struct{}),
ClientStore: cs,
PeerStore: ps,
IPStore: ips,
}
}
return theStore, nil
}
type Config struct {
Addr string `yaml:"addr"`
RequestTimeout time.Duration `yaml:"request_timeout"`
ReadTimeout time.Duration `yaml:"read_timeout"`
WriteTimeout time.Duration `yaml:"write_timeout"`
GCAfter time.Duration `yaml:"gc_after"`
ClientStore string `yaml:"client_store"`
ClientStoreConfig interface{} `yaml:"client_store_config"`
PeerStore string `yaml:"peer_store"`
PeerStoreConfig interface{} `yaml:"peer_store_config"`
IPStore string `yaml:"ip_store"`
IPStoreConfig interface{} `yaml:"ip_store_config"`
}
func newConfig(srvcfg *config.ServerConfig) (*Config, error) {
bytes, err := yaml.Marshal(srvcfg.Config)
if err != nil {
return nil, err
}
var cfg Config
err = yaml.Unmarshal(bytes, &cfg)
if err != nil {
return nil, err
}
return &cfg, nil
}
// MustGetStore is used by middleware to access the store.
//
// This function calls log.Fatal if a server hasn't been already created by
// the server package.
func MustGetStore() *Store {
if theStore == nil {
log.Fatal("store middleware used without store server")
}
return theStore
}
type Store struct {
cfg *Config
tkr *tracker.Tracker
shutdown chan struct{}
wg sync.WaitGroup
PeerStore
ClientStore
IPStore
}
func (s *Store) Start() {
}
func (s *Store) Stop() {
close(s.shutdown)
s.wg.Wait()
}