frostfs-node/pkg/services/object/put/distributed.go

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package putsvc
import (
"sync"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/network"
svcutil "github.com/nspcc-dev/neofs-node/pkg/services/object/util"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/transformer"
"github.com/nspcc-dev/neofs-node/pkg/util"
"github.com/nspcc-dev/neofs-node/pkg/util/logger"
"github.com/pkg/errors"
)
type distributedTarget struct {
traverseOpts []placement.Option
workerPool util.WorkerPool
obj *object.RawObject
chunks [][]byte
nodeTargetInitializer func(*network.Address) transformer.ObjectTarget
fmt *object.FormatValidator
log *logger.Logger
}
var errIncompletePut = errors.New("incomplete object put")
func (t *distributedTarget) WriteHeader(obj *object.RawObject) error {
t.obj = obj
return nil
}
func (t *distributedTarget) Write(p []byte) (n int, err error) {
t.chunks = append(t.chunks, p)
return len(p), nil
}
func (t *distributedTarget) Close() (*transformer.AccessIdentifiers, error) {
traverser, err := placement.NewTraverser(
append(t.traverseOpts, placement.ForObject(t.obj.ID()))...,
)
if err != nil {
return nil, errors.Wrapf(err, "(%T) could not create object placement traverser", t)
}
sz := 0
for i := range t.chunks {
sz += len(t.chunks[i])
}
payload := make([]byte, 0, sz)
for i := range t.chunks {
payload = append(payload, t.chunks[i]...)
}
if err := t.fmt.ValidateContent(t.obj.Type(), payload); err != nil {
return nil, errors.Wrapf(err, "(%T) could not validate payload content", t)
}
t.obj.SetPayload(payload)
loop:
for {
addrs := traverser.Next()
if len(addrs) == 0 {
break
}
wg := new(sync.WaitGroup)
for i := range addrs {
wg.Add(1)
addr := addrs[i]
if err := t.workerPool.Submit(func() {
defer wg.Done()
target := t.nodeTargetInitializer(addr)
if err := target.WriteHeader(t.obj); err != nil {
svcutil.LogServiceError(t.log, "PUT", addr,
errors.Wrap(err, "could not write header"))
return
} else if _, err := target.Close(); err != nil {
svcutil.LogServiceError(t.log, "PUT", addr,
errors.Wrap(err, "could not close object stream"))
return
}
traverser.SubmitSuccess()
}); err != nil {
wg.Done()
svcutil.LogWorkerPoolError(t.log, "PUT", err)
break loop
}
}
wg.Wait()
}
if !traverser.Success() {
return nil, errIncompletePut
}
return new(transformer.AccessIdentifiers).
WithSelfID(t.obj.ID()), nil
}