[libvirt] [PATCH] add compress stream support

[Vasiliy Tolstov]

2015-09-23 16:18 GMT+03:00 Daniel P. Berrange <berrange at redhat.com>:
> nstead pass flags to the virStorageVolDownload/Upload functions,
> eg VIR_STORAGE_VOL_STREAM_COMPRESS_ZLIB. This flag would get passed
> across to the storage driver, which can then turn on compression in
> the virFDStream impl. This would require
>
>  - Add the enum flags to include/libvirt/libvirt-storage.h
>  - Add libarchive support to src/fdstream.c
>  - Handle the new flags in src/storage/storage_driver.c to
>    turn on the libarchive compression in fdsream.c


I have a problems with enabling compression in fdstream. In my case
use pass flag to VolDownload, in storage_driver i don't have ability
to access privateData of the stream, so i need to create additional
variable in stream struct ?
Or i miss something? Also does the same stream can be used to read and
write in the same time? (libarchive need to init own structure for
read or for write)

-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru