You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
1.5 KiB
82 lines
1.5 KiB
package dao |
|
|
|
import ( |
|
"context" |
|
"runtime" |
|
"time" |
|
|
|
"go-common/app/interface/main/shorturl/conf" |
|
"go-common/library/cache/memcache" |
|
"go-common/library/database/sql" |
|
"go-common/library/log" |
|
) |
|
|
|
// Dao struct conf |
|
type Dao struct { |
|
db *sql.DB |
|
memchDB *memcache.Pool |
|
mcExpire int32 |
|
cacheCh chan func() |
|
} |
|
|
|
// New new dao |
|
func New(c *conf.Config) (d *Dao) { |
|
d = &Dao{ |
|
db: sql.NewMySQL(c.Mysql), |
|
memchDB: memcache.NewPool(c.Memcache.Config), |
|
cacheCh: make(chan func(), 1024), |
|
mcExpire: int32(time.Duration(c.Memcache.Expire) / time.Second), |
|
} |
|
for i := 0; i < runtime.NumCPU(); i++ { |
|
go d.cacheproc() |
|
} |
|
return |
|
} |
|
|
|
func (d *Dao) cacheproc() { |
|
for { |
|
f, ok := <-d.cacheCh |
|
if !ok { |
|
return |
|
} |
|
f() |
|
} |
|
} |
|
|
|
// AddCache add cache chan |
|
func (d *Dao) AddCache(f func()) { |
|
select { |
|
case d.cacheCh <- f: |
|
default: |
|
log.Error("d.cacheCh is full") |
|
} |
|
} |
|
|
|
// Close close db. |
|
func (d *Dao) Close() { |
|
if d.db != nil { |
|
d.db.Close() |
|
} |
|
} |
|
|
|
// Ping ping dao |
|
func (d *Dao) Ping(c context.Context) (err error) { |
|
if err = d.db.Ping(c); err != nil { |
|
log.Error("d.PingDB error(%v)", err) |
|
} |
|
if err = d.PingMC(c); err != nil { |
|
log.Error("d.PingMC error(%v)", err) |
|
} |
|
return |
|
} |
|
|
|
// PingMC ping mc is ok. |
|
func (d *Dao) PingMC(c context.Context) (err error) { |
|
conn := d.memchDB.Get(c) |
|
item := memcache.Item{Key: "ping", Value: []byte{1}, Expiration: d.mcExpire} |
|
if err = conn.Set(&item); err != nil { |
|
log.Error("conn.Set(%s) error(%v)", item.Key, err) |
|
} |
|
conn.Close() |
|
return |
|
}
|
|
|