forked from TrueCloudLab/frostfs-node
71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package policer
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import (
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"sync"
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"time"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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lru "github.com/hashicorp/golang-lru/v2"
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"go.uber.org/zap"
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)
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type objectsInWork struct {
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sync.RWMutex
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objs map[oid.Address]struct{}
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}
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func (oiw *objectsInWork) inWork(addr oid.Address) bool {
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oiw.RLock()
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_, ok := oiw.objs[addr]
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oiw.RUnlock()
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return ok
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}
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func (oiw *objectsInWork) remove(addr oid.Address) {
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oiw.Lock()
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delete(oiw.objs, addr)
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oiw.Unlock()
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}
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func (oiw *objectsInWork) add(addr oid.Address) bool {
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oiw.Lock()
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_, exists := oiw.objs[addr]
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oiw.objs[addr] = struct{}{}
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oiw.Unlock()
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return !exists
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}
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// Policer represents the utility that verifies
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// compliance with the object storage policy.
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type Policer struct {
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*cfg
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cache *lru.Cache[oid.Address, time.Time]
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objsInWork *objectsInWork
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}
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// New creates, initializes and returns Policer instance.
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func New(opts ...Option) *Policer {
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c := defaultCfg()
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for i := range opts {
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opts[i](c)
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}
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c.log = c.log.With(zap.String("component", "Object Policer"))
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cache, err := lru.New[oid.Address, time.Time](int(c.cacheSize))
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if err != nil {
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panic(err)
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}
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return &Policer{
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cfg: c,
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cache: cache,
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objsInWork: &objectsInWork{
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objs: make(map[oid.Address]struct{}, c.taskPool.Cap()),
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},
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}
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}
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