On 27/06/2019 19:18, Ravindra Kumar Meena wrote:
> Okay. Raw file contents have this structure. It means raw file
will only
> contain event and data in binary format. How should I get it's
> corresponding ns and cpu values.
1. Instead of the socket() and connect() you open the file
descriptor with open().
2. Instead of using recv() to read from the file descriptor you use
read(). See below.
Wow!!. The file descriptor is a very nice concept. I learned about it
during my 3rd year of graduation but I never thought I would ever apply
it :)
https://www.geeksforgeeks.org/input-output-system-calls-c-create-open-close-read-write/
The 2nd task is complete. Have made a push on my GitHub rtems-tools
workplace
https://github.com/rmeena840/rtems-tools/commit/362a6fc94886f298d207021ce5f2dad48783c0da
Have a look
I tried the command on my machine it's working fine with the raw data
created today. The babeltrace is able to print all values.
I used "./build/misc/rtems-record --input raw_data | head" command
generating ctf events from raw data
As I said a couple of time before. Please fix the compiler warnings:
../misc/record/record-main.c:57:23: warning: character constant too long
for its type
{ "input", 1, NULL, 'input' },
^~~~~~~
../misc/record/record-main.c: In function ‘main’:
../misc/record/record-main.c:308:12: warning: character constant too
long for its type
case 'input':
^~~~~~~
I am a bit surprised that this code compiles at all.
There is a bug (from me) in the while loop.
ssize_t n;
n = ( input_file_flag ) ? read(fd, buf, 10) : recv( fd, buf,
sizeof( buf ), 0 );
- if ( n >= 0 ) {
+ if ( n > 0 ) {
rtems_record_client_run( &ctx, buf, (size_t) n );
} else {
break;
Could you please give me permission to push to your repository. I would
like to add a record item stream from a QorIQ T4240.
lttng seems to create one event stream file per processor. This is your
next task.
1. Open a event stream file for each processor.
2. Write the events of a processor (CPU) to the corresponding file.
--
Sebastian Huber, embedded brains GmbH
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