// NewPatcher creates a Patcher (which basically is a Job object with some hidden extra data).
//
// delta is a reader that provides the delta.
// basis provides the basis file.
func NewPatcher(delta io.Reader, basis io.ReaderAt) (job *Patcher, err error) {
_job, e := newJob(delta)
if e != nil {
err = e
return
}
job = &Patcher{
Job: _job,
basis: basis}
job.job = C.rs_patch_begin((*C.rs_copy_cb)(unsafe.Pointer(&patch_callback)), unsafe.Pointer(job))
if job.job == nil {
job.Close()
return nil, errors.New("rs_patch_begin failed")
}
return
}
// NewPatcher creates a Patcher (which basically is a Job object with some hidden extra data).
//
// delta is a reader that provides the delta.
// basis provides the basis file.
func NewPatcher(delta io.Reader, basis io.ReaderAt) (job *Patcher, err error) {
_job, e := newJob(delta)
if e != nil {
err = e
return
}
job = &Patcher{
Job: _job,
basis: basis}
id := uintptr(unsafe.Pointer(_job.rsbufs)) // this is a unique, unchanging number (C doesn't change pointers under the hood)
storePatcher(job, id)
job.job = C.rs_patch_begin((*C.rs_copy_cb)(patchCallback), unsafe.Pointer(id))
if job.job == nil {
dropPatcher(id)
job.Close()
return nil, errors.New("rs_patch_begin failed")
}
return
}