Re: [PATCH 1/4] parallels: Fix connecting to parallels driver

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On 30.01.2015 20:58, Maxim Nestratov wrote:
> After 55ea7be7, failures of parallelsLoadNetworks and parallelsStorageOpen
> started to fail establishing a new connection to parallels driver.
> Before this patch we simply ignored such errors.
> This patch restores the ability to connect to parallels driver
> even if parallelsLoadNetworks fails to get information about
> Parallels Bridged networks. This can happen when it is unconfigured
> (which is a common case on developers hosts for instance) or configured
> incompletely. In any case it is not a severe error and we can ignore it.
> Failures of parallelsStorageOpen occured because we incorrectly treated
> path to VM' configuration file as a directory. Now initialization of
> parallels VM domains home directory is fixed.
> 
> Signed-off-by: Maxim Nestratov <mnestratov@xxxxxxxxxxxxx>
> ---
>  src/parallels/parallels_network.c |    2 +-
>  src/parallels/parallels_sdk.c     |    8 ++++++++
>  2 files changed, 9 insertions(+), 1 deletions(-)
> 
> diff --git a/src/parallels/parallels_network.c b/src/parallels/parallels_network.c
> index 3e7087d..033b347 100644
> --- a/src/parallels/parallels_network.c
> +++ b/src/parallels/parallels_network.c
> @@ -304,7 +304,7 @@ static int parallelsLoadNetworks(parallelsConnPtr privconn)
>  
>          net = parallelsLoadNetwork(privconn, jobj2);
>          if (!net)
> -            goto cleanup;
> +            continue;

I'm not sure this is correct. I mean, parallelsLoadNetwork() could have
failed for so many reasons. And some of them are show stoppers (e.g. OOM).

>  
>      }
>  
> diff --git a/src/parallels/parallels_sdk.c b/src/parallels/parallels_sdk.c
> index d0d2ce2..b9d5ddf 100644
> --- a/src/parallels/parallels_sdk.c
> +++ b/src/parallels/parallels_sdk.c
> @@ -1247,6 +1247,14 @@ prlsdkLoadDomain(parallelsConnPtr privconn,
>      pret = PrlVmCfg_GetHomePath(sdkdom, pdom->home, &buflen);
>      prlsdkCheckRetGoto(pret, error);
>  
> +    // For VMs pdom->home is actually /directory/config.pvs
> +    if(!IS_CT(def)){
> +        // Get rid of /config.pvs in path string
> +        char *s = strrchr(pdom->home, '/');
> +        if (s)
> +            *s = '\0';
> +    }
> +

We like comments in old way /* */, and we even like spaces around
brackets and after 'if'-s.

>      if (olddom) {
>          /* assign new virDomainDef without any checks */
>          /* we can't use virDomainObjAssignDef, because it checks
> 

Michal

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