Re: [PATCH v4 06/13] qemu: refactor fetching migration stats

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On Fri, Sep 01, 2017 at 09:49:24 +0300, Nikolay Shirokovskiy wrote:
> qemuMigrationFetchJobStatus is rather inconvinient. Some of its
> callers don't need status to be updated, some don't need to update
> elapsed time right away. So let's update status or elapsed time
> in callers instead.
> 
> This patch drops updating job status on getting job stats by
> client. This way we will not provide status 'completed' while
> it is not yet updated by migration routine.
...
> diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
> index e2760d1..a1923c3 100644
> --- a/src/qemu/qemu_migration.c
> +++ b/src/qemu/qemu_migration.c
> @@ -1376,24 +1376,26 @@ qemuMigrationUpdateJobType(qemuDomainJobInfoPtr jobInfo)
>  
>  
>  int
> -qemuMigrationFetchJobStatus(virQEMUDriverPtr driver,
> -                            virDomainObjPtr vm,
> -                            qemuDomainAsyncJob asyncJob,
> -                            qemuDomainJobInfoPtr jobInfo)
> +qemuMigrationFetchStats(virQEMUDriverPtr driver,
> +                        virDomainObjPtr vm,
> +                        qemuDomainAsyncJob asyncJob,
> +                        qemuDomainJobInfoPtr jobInfo)
>  {
>      qemuDomainObjPrivatePtr priv = vm->privateData;
> +    qemuMonitorMigrationStats stats;
>      int rv;
>  
>      if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
>          return -1;
>  
> -    rv = qemuMonitorGetMigrationStats(priv->mon, &jobInfo->stats);
> +    rv = qemuMonitorGetMigrationStats(priv->mon, &stats);
>  
>      if (qemuDomainObjExitMonitor(driver, vm) < 0 || rv < 0)
>          return -1;
>  
> -    qemuMigrationUpdateJobType(jobInfo);
> -    return qemuDomainJobInfoUpdateTime(jobInfo);
> +    jobInfo->stats = stats = stats;

One assignment would have been enough :-)

Jirka

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