[libvirt] [PATCH v2 3/5] qemu_domain: Introduce qemuDomainObjBeginJobNowait

John Ferlan jferlan at redhat.com
Mon Jun 18 23:25:02 UTC 2018



On 06/15/2018 04:18 AM, Michal Privoznik wrote:
> The aim of this API is to allow the caller do best effort. Some

s/do/to do/

> functions can work even when acquiring the job fails (e.g.
> qemuConnectGetAllDomainStats()). But what they can't bear is
> delay if they have to wait up to 30 seconds for each domain that
> is processing some other job.
> 
> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
> ---
>  src/qemu/qemu_domain.c | 43 ++++++++++++++++++++++++++++++++++++++-----
>  src/qemu/qemu_domain.h |  4 ++++
>  2 files changed, 42 insertions(+), 5 deletions(-)
> 

Couple of nits noted, one above, one below...

Reviewed-by: John Ferlan <jferlan at redhat.com>

John


> diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> index 21d54938b6..a01067049e 100644
> --- a/src/qemu/qemu_domain.c
> +++ b/src/qemu/qemu_domain.c
> @@ -6359,11 +6359,15 @@ qemuDomainJobAllowed(qemuDomainObjPrivatePtr priv, qemuDomainJob job)
>   * @obj: domain object
>   * @job: qemuDomainJob to start
>   * @asyncJob: qemuDomainAsyncJob to start
> + * @nowait: don't wait trying to acquire @job
>   *
>   * Acquires job for a domain object which must be locked before
>   * calling. If there's already a job running waits up to
>   * QEMU_JOB_WAIT_TIME after which the functions fails reporting
> - * an error.
> + * an error unless @nowait is set.

Paragraph break have a empty line for readability.

> + * If @nowait is true this function tries to acquire job and if
> + * it fails, then it returns immediately without waiting. No
> + * error is reported in this case.
>   *
>   * Returns: 0 on success,
>   *         -2 if unable to start job because of timeout or

[...]




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