[libvirt] [PATCH 4/8] Convert drivers to thread safe APIs for adding callbacks

[Eric Blake]

On 12/13/2011 05:38 PM, Daniel P. Berrange wrote:
> From: "Daniel P. Berrange" <berrange at redhat.com>
> 
> * src/libxl/libxl_driver.c, src/lxc/lxc_driver.c,
>   src/qemu/qemu_driver.c, src/remote/remote_driver.c,
>   src/test/test_driver.c, src/uml/uml_driver.c,
>   src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Convert
>   to threadsafe APIs
> ---
>  src/libxl/libxl_driver.c   |   18 ++++++------
>  src/lxc/lxc_driver.c       |   18 ++++++------
>  src/qemu/qemu_driver.c     |   18 ++++++------
>  src/remote/remote_driver.c |   64 ++++++++++++++++++-------------------------
>  src/test/test_driver.c     |   14 +++++-----
>  src/uml/uml_driver.c       |   18 ++++++------
>  src/vbox/vbox_tmpl.c       |   24 ++++++++--------
>  src/xen/xen_driver.c       |   10 +++---
>  8 files changed, 87 insertions(+), 97 deletions(-)

Safer and slightly smaller - a nice mix :)

> +++ b/src/remote/remote_driver.c
> @@ -3124,13 +3124,8 @@ static int remoteDomainEventRegister(virConnectPtr conn,
>  
>      remoteDriverLock(priv);
>  
> -    if (priv->domainEventState->timer < 0) {
> -         remoteError(VIR_ERR_NO_SUPPORT, "%s", _("no event support"));
> -         goto done;
> -    }

Does this hunk belong here, or in a later patch?

> @@ -3763,20 +3757,15 @@ static int remoteDomainEventRegisterAny(virConnectPtr conn,
>  
>      remoteDriverLock(priv);
>  
> -    if (priv->domainEventState->timer < 0) {
> -         remoteError(VIR_ERR_NO_SUPPORT, "%s", _("no event support"));

Likewise.


> +    if ((count = virDomainEventStateRegisterID(conn,
> +                                               priv->domainEventState,
> +                                               dom, eventID,
> +                                               callback, opaque, freecb,
> +                                               &callbackID)) < 0) {
> +         remoteError(VIR_ERR_RPC, "%s", _("adding cb to list"));
>           goto done;

Indentation is off here (9 instead of 8 spaces, on both instances of
this error message).

ACK - the bulk of this patch is mechanical; and while I think you should
rebase the remote_driver.c stuff slightly differently, at least this one
compiled (unlike the rebase disaster on 1/8).

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 620 bytes
Desc: OpenPGP digital signature
URL: <http://listman.redhat.com/archives/libvir-list/attachments/20111214/00629dc3/attachment-0001.sig>