[CRIU] [PATCH 2/2]v2 service: add support for check request

[Pavel Emelyanov]

On 11/18/2013 06:25 PM, Ruslan Kuprieiev wrote:
> 
> Signed-off-by: Ruslan Kuprieiev <kupruser at gmail.com>
> ---
>  cr-service.c | 37 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 37 insertions(+)
> 
> diff --git a/cr-service.c b/cr-service.c
> index 65710fd..c337fce 100644
> --- a/cr-service.c
> +++ b/cr-service.c
> @@ -217,6 +217,41 @@ exit:
>  	return success ? 0 : 1;
>  }
>  
> +/*
> + * Only checks criu ability to work in this enviroment.
> + */
> +static int check_using_req(int sk, CriuOpts *req)
> +{
> +	bool success = false;
> +	CriuResp msg = CRIU_RESP__INIT;
> +	CriuCheckResp resp = CRIU_CHECK_RESP__INIT;
> +
> +	if (setup_opts_from_req(sk, req) == -1) {
> +		pr_perror("Arguments treating fail");
> +		goto exit;
> +	}
> +
> +	if (cr_check() < 0) {
> +		pr_perror("The kernel support isn't up-to-date");
> +		goto exit;
> +	}
> +
> +	resp.kernel = true;

Always true argument is pointless.

> +
> +	success = true;
> +exit:
> +	msg.type = CRIU_REQ_TYPE__CHECK;
> +	msg.success = success;
> +	msg.check = &resp;
> +
> +	if (send_criu_msg(sk, &msg) == -1) {
> +		pr_perror("Can't send response");
> +		success = false;
> +	}
> +
> +	return success ? 0 : 1;
> +}
> +
>  static int cr_service_work(int sk)
>  {
>  	CriuReq *msg = 0;
> @@ -233,6 +268,8 @@ static int cr_service_work(int sk)
>  		return dump_using_req(sk, msg->opts);
>  	case CRIU_REQ_TYPE__RESTORE:
>  		return restore_using_req(sk, msg->opts);
> +	case CRIU_REQ_TYPE__CHECK:
> +		return check_using_req(sk, msg->opts);
>  
>  	default: {
>  		CriuResp resp = CRIU_RESP__INIT;
>