Re: [libvirt PATCH v2 03/10] remote_daemon_dispatch: Use automatic mutex management

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On 3/4/22 18:28, Tim Wiederhake wrote:
> Signed-off-by: Tim Wiederhake <twiederh@xxxxxxxxxx>
> ---
>  src/remote/remote_daemon_dispatch.c | 187 +++++++++-------------------
>  1 file changed, 58 insertions(+), 129 deletions(-)
> 
> diff --git a/src/remote/remote_daemon_dispatch.c b/src/remote/remote_daemon_dispatch.c
> index 510856024c..1a73976831 100644
> --- a/src/remote/remote_daemon_dispatch.c
> +++ b/src/remote/remote_daemon_dispatch.c
> @@ -2057,14 +2057,13 @@ remoteDispatchConnectOpen(virNetServer *server G_GNUC_UNUSED,
>  #endif
>      unsigned int flags;
>      struct daemonClientPrivate *priv = virNetServerClientGetPrivateData(client);
> -    int rv = -1;
>  #ifdef MODULE_NAME
>      const char *type = NULL;
>  #endif /* !MODULE_NAME */
>      bool preserveIdentity = false;
> +    VIR_LOCK_GUARD lock = virLockGuardLock(&priv->lock);
>  
>      VIR_DEBUG("priv=%p conn=%p", priv, priv->conn);
> -    virMutexLock(&priv->lock);
>      /* Already opened? */
>      if (priv->conn) {
>          virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection already open"));
> @@ -2184,17 +2183,14 @@ remoteDispatchConnectOpen(virNetServer *server G_GNUC_UNUSED,
>       * by default, but do accept RO flags, e.g. TCP
>       */
>      virNetServerClientSetReadonly(client, (flags & VIR_CONNECT_RO));
> -    rv = 0;
> +    return 0;
>  
>   cleanup:

Here, and in the rest of the patch:
This label is now used only in case of failure, so it should be renamed
to 'error'. But it's okay to do that in a follow up patch.

> -    if (rv < 0) {
> -        virNetMessageSaveError(rerr);
> -        if (priv->conn) {
> -            g_clear_pointer(&priv->conn, virObjectUnref);
> -        }
> +    virNetMessageSaveError(rerr);
> +    if (priv->conn) {
> +        g_clear_pointer(&priv->conn, virObjectUnref);
>      }
> -    virMutexUnlock(&priv->lock);
> -    return rv;
> +    return -1;
>  }

Michal




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