[ltt-dev] [UST PATCH] Include trace name in output directory name

[david.goulet@polymtl.ca (David Goulet)]

On 10-11-09 01:01 PM, Nils Carlson wrote:
>
> On Nov 9, 2010, at 5:37 PM, David Goulet wrote:
>
>> How about we put the trace name in front and don't have the PID as the
>> first value and STOP having multiple traces beginning with numbers
>> that make things quite confusing in a long term and painful to
>> identify the good trace ?
>>
>
> Yep, maybe it's best to really do something about the order...
>
> What about doing date prefixing followed by the trace name and if
> necessary followed by a seq nr?
>
> Something like
>
> 20101109-152301-auto
> 20101109-152301-auto_1 (in case of collision?)
>
> We might also consider putting the actual application name (the first
> stripped token of argv[0] in there?

Hmmm, there is a lot of information in these path for now lol.

usttrace should also be consider for a change I think. It is unusable to 
my opinion having this date format of 24 numbers... and only numbers 
that in a long run become human "not readable".

So how about this :

${HOME}/.usttraces/$hostname-$app_name/20101109-152301-$tracename-$PID

Regrouping all traces from the same apps and host.. ?

David

>
> /Nils
>
>
>
>> David
>>
>> On 10-11-08 10:34 AM, Nils Carlson wrote:
>>> Include the name of the trace to the output directory created by
>>> ustd. Yet another part of multi-session support.
>>>
>>> Signed-off-by: Nils Carlson<nils.carlson at ericsson.com>
>>> ---
>>> ustd/ustd.c | 12 ++++++------
>>> 1 files changed, 6 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/ustd/ustd.c b/ustd/ustd.c
>>> index e75fd9d..3f63457 100644
>>> --- a/ustd/ustd.c
>>> +++ b/ustd/ustd.c
>>> @@ -191,9 +191,9 @@ int on_open_buffer(struct libustd_callbacks
>>> *data, struct buffer_info *buf)
>>> trace_path = USTD_DEFAULT_TRACE_PATH;
>>> }
>>>
>>> - if (asprintf(&tmp, "%s/%u_%lld", trace_path, buf->pid,
>>> buf->pidunique)< 0) {
>>> - ERR("on_open_buffer : asprintf failed (%s/%u_%lld)",
>>> - trace_path, buf->pid, buf->pidunique);
>>> + if (asprintf(&tmp, "%s/%u_%s_%lld", trace_path, buf->pid,
>>> buf->trace, buf->pidunique)< 0) {
>>> + ERR("on_open_buffer : asprintf failed (%s/%u_%s_%lld)",
>>> + trace_path, buf->pid, buf->trace, buf->pidunique);
>>> return 1;
>>> }
>>> result = create_dir_if_needed(tmp);
>>> @@ -204,9 +204,9 @@ int on_open_buffer(struct libustd_callbacks
>>> *data, struct buffer_info *buf)
>>> }
>>> free(tmp);
>>>
>>> - if (asprintf(&tmp, "%s/%u_%lld/%s", trace_path, buf->pid,
>>> buf->pidunique, buf->name)< 0) {
>>> - ERR("on_open_buffer : asprintf failed (%s/%u_%lld/%s)",
>>> - trace_path, buf->pid, buf->pidunique, buf->name);
>>> + if (asprintf(&tmp, "%s/%u_%s_%lld/%s", trace_path, buf->pid,
>>> buf->trace, buf->pidunique, buf->name)< 0) {
>>> + ERR("on_open_buffer : asprintf failed (%s/%u_%s_%lld/%s)",
>>> + trace_path, buf->pid, buf->trace, buf->pidunique, buf->name);
>>> return 1;
>>> }
>>> result = fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 00600);
>>
>> --
>> David Goulet
>> LTTng project, DORSAL Lab.
>>
>> PGP/GPG : 1024D/16BD8563
>> BE3C 672B 9331 9796 291A 14C6 4AF7 C14B 16BD 8563
>>
>> _______________________________________________
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>> ltt-dev at lists.casi.polymtl.ca
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>

-- 
David Goulet
LTTng project, DORSAL Lab.

PGP/GPG : 1024D/16BD8563
BE3C 672B 9331 9796 291A  14C6 4AF7 C14B 16BD 8563