6f8c45d61b
In previous implementation each operation on local storage locked engine mutex. This was done under the assumption that the weights of the shards change as a result of write operations. With the transition to static weights of shards, it is no longer necessary to lock the global mutex during the execution of operations. However, since the set of engine shards is dynamic, there is still a need to control multiple access to this set. The same mutex is used for synchronization. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package engine
|
|
|
|
import (
|
|
"github.com/nspcc-dev/neofs-api-go/pkg/object"
|
|
objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
|
|
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
// SelectPrm groups the parameters of Select operation.
|
|
type SelectPrm struct {
|
|
filters object.SearchFilters
|
|
}
|
|
|
|
// SelectRes groups resulting values of Select operation.
|
|
type SelectRes struct {
|
|
addrList []*object.Address
|
|
}
|
|
|
|
// WithFilters is a Select option to set the object filters.
|
|
func (p *SelectPrm) WithFilters(fs objectSDK.SearchFilters) *SelectPrm {
|
|
if p != nil {
|
|
p.filters = fs
|
|
}
|
|
|
|
return p
|
|
}
|
|
|
|
// AddressList returns list of addresses of the selected objects.
|
|
func (r *SelectRes) AddressList() []*objectSDK.Address {
|
|
return r.addrList
|
|
}
|
|
|
|
// Select selects the objects from local storage that match select parameters.
|
|
//
|
|
// Returns any error encountered that did not allow to completely select the objects.
|
|
func (e *StorageEngine) Select(prm *SelectPrm) (*SelectRes, error) {
|
|
addrList := make([]*object.Address, 0)
|
|
|
|
shPrm := new(shard.SelectPrm).
|
|
WithFilters(prm.filters)
|
|
|
|
e.iterateOverSortedShards(nil, func(sh *shard.Shard) (stop bool) {
|
|
res, err := sh.Select(shPrm)
|
|
if err != nil {
|
|
// TODO: smth wrong with shard, need to be processed
|
|
e.log.Warn("could not select objects from shard",
|
|
zap.Stringer("shard", sh.ID()),
|
|
zap.String("error", err.Error()),
|
|
)
|
|
} else {
|
|
addrList = append(addrList, res.AddressList()...)
|
|
}
|
|
|
|
return false
|
|
})
|
|
|
|
return &SelectRes{
|
|
addrList: addrList,
|
|
}, nil
|
|
}
|