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Index ¶
Constants ¶
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Variables ¶
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var ( /* ErrInvalidSeek marks invalid seek operations */ ErrInvalidSeek = fmt.Errorf("invalid argument") )
Functions ¶
func NewReadWriteSeeker ¶
func NewReadWriteSeeker( blockSize int64, blockOverhead int, seeker io.Seeker, reader io.Reader, writer io.Writer, ) io.ReadWriteSeeker
NewReadWriteSeeker takes transforming readers and writers and wraps around a seeker
blockSize The size of a block of data blockOverhead The amount of overhead in a block. blockSize + blockOverhead is the actual space used
Types ¶
type File ¶
type File interface {
io.Closer
io.Reader
io.ReaderAt
io.Seeker
io.Writer
io.WriterAt
Name() string
Readdir(count int) ([]os.FileInfo, error)
Readdirnames(n int) ([]string, error)
Stat() (os.FileInfo, error)
Sync() error
Truncate(size int64) error
WriteString(s string) (int, error)
}
File interface, compatible with normal files
func New ¶
func New( blockSize int64, blockOverhead int, backing File, readOnly bool, reader io.Reader, writer io.Writer, ) File
New creates a file wrapper around a backing file, using a transforming reader and writer. The readers and writers used must write through directly to the backing file, applying transformations. They cannot buffer data internally as the writers/readers generated by the text.transform package. See NewFromTransformer() for a workaround.
func NewFromTransformer ¶
func NewFromTransformer( blockSize int64, blockOverhead int, backing File, readOnly bool, readTransformer transform.Transformer, writeTransformer transform.Transformer, ) File
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