[libvirt] [PATCH] qemu: record timestamps in qemu guest log

[Daniel P. Berrange]

On Fri, Oct 29, 2010 at 04:43:19PM +0800, Osier Yang wrote:
> Currently only record timestamps for domain start and shutdown, for
> domain start, record timestamps before qemu command line, for domain
> shutdown, just says it's shutting down.
> 
> * src/qemu/qemu_driver.c (qemudStartVMDaemon, qemudShutdownVMDaemon)
> ---
>  src/qemu/qemu_driver.c |   62 ++++++++++++++++++++++++++++++++++++++++++++++-
>  1 files changed, 60 insertions(+), 2 deletions(-)
> 
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 1eea3a9..89b4d11 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -3828,6 +3828,10 @@ static int qemudStartVMDaemon(virConnectPtr conn,
>      char ebuf[1024];
>      char *pidfile = NULL;
>      int logfile = -1;
> +    struct timeval cur_time;
> +    struct tm time_info;
> +    char timestr[100];
> +    char *timestamp;
>      qemuDomainObjPrivatePtr priv = vm->privateData;
> 
>      struct qemudHookData hookData;
> @@ -4015,7 +4019,27 @@ static int qemudStartVMDaemon(virConnectPtr conn,
>              goto cleanup;
>      }
> 
> +    gettimeofday(&cur_time, NULL);
> +    localtime_r(&cur_time.tv_sec, &time_info);
> +
> +    strftime(timestr, sizeof(timestr), "%Y-%m-%d %H:%M:%S", &time_info);
> +
> +    if (virAsprintf(&timestamp, "%s.%3d: ",
> +                    timestr, (int) cur_time.tv_usec / 1000) < 0) {
> +        VIR_FREE(timestamp);
> +        virReportOOMError();
> +        goto cleanup;
> +    }

This is a rather unwieldly block of code, that is just dieing to
have a helper function in src/util, so we don't need to duplicate
it everywhere

Regards,
Daniel
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