README
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Disk Buffer Reader
Are you tired of dealing with how to use a reader more than once? Me too! Rather than teeing a reader, reading it all, or other messy methods, try using your disk!
What it does
Disk buffer reader uses takes everything read from a reader, writes it to a temporary file on disk, and resets the reader to read from the start again. Once you're done reusing your reader, stop the recording function and use it as normal.
Example
func main() {
readerOriginal := bytes.NewBuffer([]bytes("OneTwoThr")
dbr, _ := diskBufferReader.NewReader(readerOriginal)
defer dbr.Close() // Close reader and delete tmp file.
message := make([]byte, 3)
for i := 0; i < 3; i++ {
dbr.Read(message)
fmt.Println(message)
}
for i := 0; i < 3; i++ {
dbr.Reset() // Reset reader to 0.
dbr.Read(message)
fmt.Println(message)
}
dbr.Stop() // Stop storing read bytes in tmp file.
}
One
Two
Thr
One
One
One
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type DiskBufferReader ¶
type DiskBufferReader struct {
// contains filtered or unexported fields
}
DiskBufferReader uses an io.Reader and stores read bytes to a tmp file so the reader can be reset to the start.
func New ¶
func New(r io.Reader) (*DiskBufferReader, error)
New takes an io.Reader and creates returns an initialized DiskBufferReader.
func (*DiskBufferReader) Close ¶
func (dbr *DiskBufferReader) Close() error
Close the reader and delete the tmp file.
func (*DiskBufferReader) Read ¶
func (dbr *DiskBufferReader) Read(out []byte) (int, error)
Read from the len(out) bytes from the reader starting at the current index.
func (*DiskBufferReader) Reset ¶
func (dbr *DiskBufferReader) Reset() error
Reset the reader position to the start.
func (*DiskBufferReader) Stop ¶
func (dbr *DiskBufferReader) Stop()
Stop storing the read bytes in the tmp file.
Source Files