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[#176] localstore: Fix Get with non-zero length

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GetPrm has WithPayloadRange option to specify the requested
payload range. In previous implementation StorageEngine.Get
method ignored this option. From now zero length matches
full payload request.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-11-18 10:59:47 +03:00 committed by Alex Vanin
parent 46e455dcae
commit 73494c4bbc
1 changed files with 8 additions and 3 deletions
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11
pkg/local_object_storage/engine/get.go
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@ -37,7 +37,7 @@ func (p *GetPrm) WithAddress(addr *objectSDK.Address) *GetPrm {
// WithPayloadRange is a Get option to set range of requested payload data.
//
// Missing an option or calling with zero arguments is equivalent
// Missing an option or calling with zero length is equivalent
// to getting the full payload range.
func (p *GetPrm) WithPayloadRange(off, ln uint64) *GetPrm {
if p != nil {
@ -67,8 +67,13 @@ func (e *StorageEngine) Get(prm *GetPrm) (*GetRes, error) {
var obj *object.Object
shPrm := new(shard.GetPrm).
WithAddress(prm.addr).
WithFullRange()
WithAddress(prm.addr)
if prm.ln == 0 {
shPrm = shPrm.WithFullRange()
} else {
shPrm = shPrm.WithRange(prm.off, int64(prm.ln))
}
e.iterateOverSortedShards(prm.addr, func(sh *shard.Shard) (stop bool) {
res, err := sh.Get(shPrm)