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Merge pull request #463 from stevvooe/free-leaked-goroutine

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registry/storage/driver/s3: use done channel to avoid goroutine leak
This commit is contained in:
Richard Scothern 2015-04-28 15:38:40 -07:00
commit b5bae799e3
1 changed files with 12 additions and 2 deletions
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14
registry/storage/driver/s3/s3.go
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@ -310,6 +310,7 @@ func (d *driver) WriteStream(path string, offset int64, reader io.Reader) (total
var putErrChan chan error
parts := []s3.Part{}
var part s3.Part
done := make(chan struct{}) // stopgap to free up waiting goroutines
multi, err := d.Bucket.InitMulti(d.s3Path(path), d.getContentType(), getPermissions(), d.getOptions())
if err != nil {
@ -344,6 +345,7 @@ func (d *driver) WriteStream(path string, offset int64, reader io.Reader) (total
}
d.putbuf(buf) // needs to be here to pick up new buf value
close(done) // free up any waiting goroutines
}()
// Fills from 0 to total from current
@ -407,7 +409,11 @@ func (d *driver) WriteStream(path string, offset int64, reader io.Reader) (total
// the underlying s3 library should handle it, it doesn't seem to
// be part of the shouldRetry function (see AdRoll/goamz/s3).
defer func() {
putErrChan <- nil // for some reason, we do this no matter what.
select {
case putErrChan <- nil: // for some reason, we do this no matter what.
case <-done:
return // ensure we don't leak the goroutine
}
}()
if bytesRead <= 0 {
@ -449,7 +455,11 @@ func (d *driver) WriteStream(path string, offset int64, reader io.Reader) (total
if err != nil {
logrus.Errorf("error putting part, aborting: %v", err)
putErrChan <- err
select {
case putErrChan <- err:
case <-done:
return // don't leak the goroutine
}
}
// parts and partNumber are safe, because this function is the