func (c *client) startUpload(id uint64, inPath string) (cancel func()) {
killChan := make(chan bool, 1)
go func() {
var detachment *pond.Message_Detachment
var tmp *os.File
var err error
if tmp, err = ioutil.TempFile("" /* default tmp dir */, "pond-upload-"); err != nil {
err = errors.New("failed to create temp file: " + err.Error())
} else {
os.Remove(tmp.Name())
defer tmp.Close()
detachment, err = saveEncrypted(c.rand, c.backgroundChan, tmp, id, inPath, killChan)
if err == nil {
err = c.uploadDetachment(c.backgroundChan, tmp, id, killChan)
}
}
if err == nil {
detachment.Url = proto.String(c.buildDetachmentURL(id))
c.log.Printf("Finished upload of %s", *detachment.Url)
c.backgroundChan <- DetachmentComplete{id, detachment}
} else {
c.backgroundChan <- DetachmentError{id, err}
}
tmp.Close()
}()
return func() {
killChan <- true
}
}
