[lttng-dev] [LTTNG-TOOLS PATCH] Fix: get the stream_id when generating live beacons

[Julien Desfossez]

Forget this patch, I'll send a new version soon.
Need to check the domain before...

On 14-07-01 12:10 PM, Julien Desfossez wrote:
> When we send an empty index (beacon), we need to extract the stream_id
> to avoid stalling the client on inactive streams on startup.
> 
> This patch should also be backported to 2.4.x.
> 
> Signed-off-by: Julien Desfossez <jdesfossez at efficios.com>
> ---
>  src/common/consumer-timer.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/src/common/consumer-timer.c b/src/common/consumer-timer.c
> index c659bf6..c13577f 100644
> --- a/src/common/consumer-timer.c
> +++ b/src/common/consumer-timer.c
> @@ -118,8 +118,16 @@ static int send_empty_index(struct lttng_consumer_stream *stream, uint64_t ts)
>  {
>  	int ret;
>  	struct ctf_packet_index index;
> +	uint64_t stream_id;
> +
> +	ret = kernctl_get_stream_id(stream->wait_fd, &stream_id);
> +	if (ret < 0) {
> +		PERROR("kernctl_get_stream_id");
> +		goto error;
> +	}
>  
>  	memset(&index, 0, sizeof(index));
> +	index.stream_id = htobe64(stream_id);
>  	index.timestamp_end = htobe64(ts);
>  	ret = consumer_stream_write_index(stream, &index);
>  	if (ret < 0) {
>