mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 01:52:46 +00:00
96 lines
2.1 KiB
Go
96 lines
2.1 KiB
Go
|
package rifs
|
||
|
|
||
|
import (
|
||
|
"io"
|
||
|
|
||
|
"github.com/dsoprea/go-logging"
|
||
|
)
|
||
|
|
||
|
// BoundedReadWriteSeekCloser wraps a RWS that is also a closer with boundaries.
|
||
|
// This proxies the RWS methods to the inner BRWS inside.
|
||
|
type BoundedReadWriteSeekCloser struct {
|
||
|
io.Closer
|
||
|
*BoundedReadWriteSeeker
|
||
|
}
|
||
|
|
||
|
// NewBoundedReadWriteSeekCloser returns a new BoundedReadWriteSeekCloser.
|
||
|
func NewBoundedReadWriteSeekCloser(rwsc ReadWriteSeekCloser, minimumOffset int64, staticFileSize int64) (brwsc *BoundedReadWriteSeekCloser, err error) {
|
||
|
defer func() {
|
||
|
if state := recover(); state != nil {
|
||
|
err = log.Wrap(state.(error))
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
bs, err := NewBoundedReadWriteSeeker(rwsc, minimumOffset, staticFileSize)
|
||
|
log.PanicIf(err)
|
||
|
|
||
|
brwsc = &BoundedReadWriteSeekCloser{
|
||
|
Closer: rwsc,
|
||
|
BoundedReadWriteSeeker: bs,
|
||
|
}
|
||
|
|
||
|
return brwsc, nil
|
||
|
}
|
||
|
|
||
|
// Seek forwards calls to the inner RWS.
|
||
|
func (rwsc *BoundedReadWriteSeekCloser) Seek(offset int64, whence int) (newOffset int64, err error) {
|
||
|
defer func() {
|
||
|
if state := recover(); state != nil {
|
||
|
err = log.Wrap(state.(error))
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
newOffset, err = rwsc.BoundedReadWriteSeeker.Seek(offset, whence)
|
||
|
log.PanicIf(err)
|
||
|
|
||
|
return newOffset, nil
|
||
|
}
|
||
|
|
||
|
// Read forwards calls to the inner RWS.
|
||
|
func (rwsc *BoundedReadWriteSeekCloser) Read(buffer []byte) (readCount int, err error) {
|
||
|
defer func() {
|
||
|
if state := recover(); state != nil {
|
||
|
err = log.Wrap(state.(error))
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
readCount, err = rwsc.BoundedReadWriteSeeker.Read(buffer)
|
||
|
if err != nil {
|
||
|
if err == io.EOF {
|
||
|
return 0, err
|
||
|
}
|
||
|
|
||
|
log.Panic(err)
|
||
|
}
|
||
|
|
||
|
return readCount, nil
|
||
|
}
|
||
|
|
||
|
// Write forwards calls to the inner RWS.
|
||
|
func (rwsc *BoundedReadWriteSeekCloser) Write(buffer []byte) (writtenCount int, err error) {
|
||
|
defer func() {
|
||
|
if state := recover(); state != nil {
|
||
|
err = log.Wrap(state.(error))
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
writtenCount, err = rwsc.BoundedReadWriteSeeker.Write(buffer)
|
||
|
log.PanicIf(err)
|
||
|
|
||
|
return writtenCount, nil
|
||
|
}
|
||
|
|
||
|
// Close forwards calls to the inner RWS.
|
||
|
func (rwsc *BoundedReadWriteSeekCloser) Close() (err error) {
|
||
|
defer func() {
|
||
|
if state := recover(); state != nil {
|
||
|
err = log.Wrap(state.(error))
|
||
|
}
|
||
|
}()
|
||
|
|
||
|
err = rwsc.Closer.Close()
|
||
|
log.PanicIf(err)
|
||
|
|
||
|
return nil
|
||
|
}
|