blobstor

package
v1.22.0 Latest Latest
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 Go to latest Published: Dec 30, 2020 License: GPL-3.0 Imports: 18 Imported by: 1

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Constants

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Variables

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Functions

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Types

type BlobStor 

type BlobStor struct {
	// contains filtered or unexported fields
}

BlobStor represents NeoFS local BLOB storage.

func New 

func New(opts ...Option) *BlobStor

New creates, initializes and returns new BlobStor instance.

func (*BlobStor) Close 

func (b *BlobStor) Close() error

Close releases all internal resources of BlobStor.

func (*BlobStor) DeleteBig 

func (b *BlobStor) DeleteBig(prm *DeleteBigPrm) (*DeleteBigRes, error)

DeleteBig removes object from shallow dir of BLOB storage.

Returns any error encountered that did not allow to completely remove the object.

Returns ErrNotFound if there is no object to delete.

func (*BlobStor) DeleteSmall 

func (b *BlobStor) DeleteSmall(prm *DeleteSmallPrm) (*DeleteSmallRes, error)

DeleteSmall removes object from blobovnicza of BLOB storage.

If blobovnicza ID is not set or set to nil, BlobStor tries to find and remove object from any blobovnicza.

Returns any error encountered that did not allow to completely remove the object.

Returns ErrObjectNotFound if there is no object to delete.

func (*BlobStor) DumpInfo 

func (b *BlobStor) DumpInfo() Info

DumpInfo returns information about the BlobStor.

func (*BlobStor) Exists 

func (b *BlobStor) Exists(prm *ExistsPrm) (*ExistsRes, error)

Exists checks if object is presented in BLOB storage.

Returns any error encountered that did not allow to completely check object existence.

func (*BlobStor) GetBig 

func (b *BlobStor) GetBig(prm *GetBigPrm) (*GetBigRes, error)

GetBig reads the object from shallow dir of BLOB storage by address.

Returns any error encountered that did not allow to completely read the object.

Returns ErrNotFound if requested object is not presented in shallow dir.

func (*BlobStor) GetRangeBig 

func (b *BlobStor) GetRangeBig(prm *GetRangeBigPrm) (*GetRangeBigRes, error)

GetRangeBig reads data of object payload range from shallow dir of BLOB storage.

Returns any error encountered that did not allow to completely read the object payload range.

Returns ErrRangeOutOfBounds if requested object range is out of bounds.

func (*BlobStor) GetRangeSmall 

func (b *BlobStor) GetRangeSmall(prm *GetRangeSmallPrm) (*GetRangeSmallRes, error)

GetRangeSmall reads data of object payload range from blobovnicza of BLOB storage.

If blobovnicza ID is not set or set to nil, BlobStor tries to get payload range from any blobovnicza.

Returns any error encountered that did not allow to completely read the object payload range.

Returns ErrRangeOutOfBounds if requested object range is out of bounds.

func (*BlobStor) GetSmall 

func (b *BlobStor) GetSmall(prm *GetSmallPrm) (*GetSmallRes, error)

GetSmall reads the object from blobovnicza of BLOB storage by address.

If blobovnicza ID is not set or set to nil, BlobStor tries to get object from any blobovnicza.

Returns any error encountered that did not allow to completely read the object.

func (*BlobStor) Init 

func (b *BlobStor) Init() error

Init initializes internal data structures and system resources.

If BlobStor is already initialized, then no action is taken.

func (*BlobStor) Iterate 

func (b *BlobStor) Iterate(prm *IteratePrm) (*IterateRes, error)

Iterate traverses the storage over the stored objects and calls the handler on each element.

Returns any error encountered that did not allow to completely iterate over the storage.

If handler returns an error, method returns it immediately.

func (*BlobStor) Open 

func (b *BlobStor) Open() error

Open opens BlobStor.

func (*BlobStor) Put 

func (b *BlobStor) Put(prm *PutPrm) (*PutRes, error)

Put saves the object in BLOB storage.

If object is "big", BlobStor saves the object in shallow dir. Otherwise, BlobStor saves the object in blobonicza. In this case the identifier of blobovnicza is returned.

Returns any error encountered that did not allow to completely save the object.

type DeleteBigPrm 

type DeleteBigPrm struct {
	// contains filtered or unexported fields
}

DeleteBigPrm groups the parameters of DeleteBig operation.

func (*DeleteBigPrm) SetAddress 

func (a *DeleteBigPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

type DeleteBigRes 

type DeleteBigRes struct{}

DeleteBigRes groups resulting values of DeleteBig operation.

type DeleteSmallPrm 

type DeleteSmallPrm struct {
	// contains filtered or unexported fields
}

DeleteSmallPrm groups the parameters of DeleteSmall operation.

func (*DeleteSmallPrm) SetAddress 

func (a *DeleteSmallPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

func (*DeleteSmallPrm) SetBlobovniczaID 

func (v *DeleteSmallPrm) SetBlobovniczaID(id *blobovnicza.ID)

SetBlobovniczaID sets blobovnicza ID.

type DeleteSmallRes 

type DeleteSmallRes struct{}

DeleteSmallRes groups resulting values of DeleteSmall operation.

type ExistsPrm 

type ExistsPrm struct {
	// contains filtered or unexported fields
}

ExistsPrm groups the parameters of Exists operation.

func (*ExistsPrm) SetAddress 

func (a *ExistsPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

type ExistsRes 

type ExistsRes struct {
	// contains filtered or unexported fields
}

ExistsRes groups resulting values of Exists operation.

func (ExistsRes) Exists 

func (r ExistsRes) Exists() bool

Exists returns the fact that the object is in BLOB storage.

type GetBigPrm 

type GetBigPrm struct {
	// contains filtered or unexported fields
}

GetBigPrm groups the parameters of GetBig operation.

func (*GetBigPrm) SetAddress 

func (a *GetBigPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

type GetBigRes 

type GetBigRes struct {
	// contains filtered or unexported fields
}

GetBigRes groups resulting values of GetBig operation.

func (GetBigRes) Object 

func (o GetBigRes) Object() *object.Object

Object returns the object.

type GetRangeBigPrm 

type GetRangeBigPrm struct {
	// contains filtered or unexported fields
}

GetRangeBigPrm groups the parameters of GetRangeBig operation.

func (*GetRangeBigPrm) SetAddress 

func (a *GetRangeBigPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

func (*GetRangeBigPrm) SetRange 

func (r *GetRangeBigPrm) SetRange(rng *objectSDK.Range)

SetRange sets range of the object payload.

type GetRangeBigRes 

type GetRangeBigRes struct {
	// contains filtered or unexported fields
}

GetRangeBigRes groups resulting values of GetRangeBig operation.

func (GetRangeBigRes) RangeData 

func (d GetRangeBigRes) RangeData() []byte

RangeData returns data of the requested payload range.

type GetRangeSmallPrm 

type GetRangeSmallPrm struct {
	// contains filtered or unexported fields
}

GetRangeSmallPrm groups the parameters of GetRangeSmall operation.

func (*GetRangeSmallPrm) SetAddress 

func (a *GetRangeSmallPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

func (*GetRangeSmallPrm) SetBlobovniczaID 

func (v *GetRangeSmallPrm) SetBlobovniczaID(id *blobovnicza.ID)

SetBlobovniczaID sets blobovnicza ID.

func (*GetRangeSmallPrm) SetRange 

func (r *GetRangeSmallPrm) SetRange(rng *objectSDK.Range)

SetRange sets range of the object payload.

type GetRangeSmallRes 

type GetRangeSmallRes struct {
	// contains filtered or unexported fields
}

GetRangeSmallRes groups resulting values of GetRangeSmall operation.

func (GetRangeSmallRes) RangeData 

func (d GetRangeSmallRes) RangeData() []byte

RangeData returns data of the requested payload range.

type GetSmallPrm 

type GetSmallPrm struct {
	// contains filtered or unexported fields
}

GetSmallPrm groups the parameters of GetSmallPrm operation.

func (*GetSmallPrm) SetAddress 

func (a *GetSmallPrm) SetAddress(addr *objectSDK.Address)

SetAddress sets the address of the requested object.

func (*GetSmallPrm) SetBlobovniczaID 

func (v *GetSmallPrm) SetBlobovniczaID(id *blobovnicza.ID)

SetBlobovniczaID sets blobovnicza ID.

type GetSmallRes 

type GetSmallRes struct {
	// contains filtered or unexported fields
}

GetBigRes groups resulting values of GetBig operation.

func (GetSmallRes) Object 

func (o GetSmallRes) Object() *object.Object

Object returns the object.

type Info 

type Info struct {
	// Permission bits of the root directory.
	Permissions os.FileMode

	// Full path to the root directory.
	RootPath string
}

Info groups the information about BlobStor.

type IteratePrm 

type IteratePrm struct {
	// contains filtered or unexported fields
}

IteratePrm groups the parameters of Iterate operation.

func (*IteratePrm) SetIterationHandler 

func (i *IteratePrm) SetIterationHandler(h IterationHandler)

SetIterationHandler sets the action to be performed on each iteration.

type IterateRes 

type IterateRes struct{}

IterateRes groups resulting values of Iterate operation.

type IterationHandler 

type IterationHandler func(*objectSDK.Address, *blobovnicza.ID) error

IterationHandler represents the action to be performed on each iteration.

type Option 

type Option func(*cfg)

Option represents BlobStor's constructor option.

func WithBlobovniczaOpenedCacheSize 

func WithBlobovniczaOpenedCacheSize(sz int) Option

WithBlobovniczaOpenedCacheSize return option to specify maximum number of opened non-active blobovnicza's.

func WithBlobovniczaShallowDepth 

func WithBlobovniczaShallowDepth(d uint64) Option

WithBlobovniczaShallowDepth returns option to specify depth of blobovnicza directories.

func WithBlobovniczaShallowWidth 

func WithBlobovniczaShallowWidth(w uint64) Option

WithBlobovniczaShallowWidth returns option to specify width of blobovnicza directories.

func WithBlobovniczaSize 

func WithBlobovniczaSize(sz uint64) Option

WithBlobovniczaSize returns option to specify maximum volume of each blobovnicza.

func WithCompressObjects 

func WithCompressObjects(comp bool, log *logger.Logger) Option

WithCompressObjects returns option to toggle compression of the stored objects.

If true, Zstandard algorithm is used for data compression.

If compressor (decompressor) creation failed, the uncompressed option will be used, and the error is recorded in the provided log.

func WithLogger 

func WithLogger(l *logger.Logger) Option

WithLogger returns option to specify BlobStor's logger.

func WithRootPath 

func WithRootPath(rootDir string) Option

WithRootPath returns option to set path to root directory of the fs tree to write the objects.

func WithRootPerm 

func WithRootPerm(perm os.FileMode) Option

WithRootPerm returns option to set permission bits of the fs tree.

func WithShallowDepth 

func WithShallowDepth(depth int) Option

WithShallowDepth returns option to set the depth of the object file subdirectory tree.

Depth is reduced to maximum value in case of overflow.

func WithSmallSizeLimit 

func WithSmallSizeLimit(lim uint64) Option

WithSmallSizeLimit returns option to set maximum size of "small" object.

type PutPrm 

type PutPrm struct {
	// contains filtered or unexported fields
}

PutPrm groups the parameters of Put operation.

func (*PutPrm) SetObject 

func (o *PutPrm) SetObject(obj *object.Object)

SetObject sets the object.

type PutRes 

type PutRes struct {
	// contains filtered or unexported fields
}

PutRes groups resulting values of Put operation.

func (PutRes) BlobovniczaID 

func (v PutRes) BlobovniczaID() *blobovnicza.ID

BlobovniczaID returns blobovnicza ID.

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