83 lines
1.5 KiB
Go
83 lines
1.5 KiB
Go
package dao
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import (
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"context"
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"runtime"
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"time"
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"go-common/app/interface/main/shorturl/conf"
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"go-common/library/cache/memcache"
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"go-common/library/database/sql"
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"go-common/library/log"
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)
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// Dao struct conf
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type Dao struct {
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db *sql.DB
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memchDB *memcache.Pool
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mcExpire int32
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cacheCh chan func()
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}
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// New new dao
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func New(c *conf.Config) (d *Dao) {
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d = &Dao{
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db: sql.NewMySQL(c.Mysql),
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memchDB: memcache.NewPool(c.Memcache.Config),
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cacheCh: make(chan func(), 1024),
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mcExpire: int32(time.Duration(c.Memcache.Expire) / time.Second),
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}
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for i := 0; i < runtime.NumCPU(); i++ {
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go d.cacheproc()
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}
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return
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}
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func (d *Dao) cacheproc() {
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for {
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f, ok := <-d.cacheCh
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if !ok {
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return
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}
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f()
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}
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}
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// AddCache add cache chan
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func (d *Dao) AddCache(f func()) {
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select {
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case d.cacheCh <- f:
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default:
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log.Error("d.cacheCh is full")
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}
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}
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// Close close db.
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func (d *Dao) Close() {
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if d.db != nil {
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d.db.Close()
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}
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}
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// Ping ping dao
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func (d *Dao) Ping(c context.Context) (err error) {
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if err = d.db.Ping(c); err != nil {
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log.Error("d.PingDB error(%v)", err)
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}
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if err = d.PingMC(c); err != nil {
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log.Error("d.PingMC error(%v)", err)
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}
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return
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}
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// PingMC ping mc is ok.
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func (d *Dao) PingMC(c context.Context) (err error) {
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conn := d.memchDB.Get(c)
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item := memcache.Item{Key: "ping", Value: []byte{1}, Expiration: d.mcExpire}
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if err = conn.Set(&item); err != nil {
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log.Error("conn.Set(%s) error(%v)", item.Key, err)
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}
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conn.Close()
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return
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}
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