Who knows ready-made solutions for collecting traces?

Question

linux

Kotany, tell me ready-made bikes for collecting traces.
I want to:
- Output traces to the console
- Write all or selective traces to a file
- Connect remotely by the client for convenient analysis in the GUI
Cherry on the cake:
- Remote control of tracing settings from under the GUI client
Language: C || C++
It is desirable(!) that these messages are not "started" through macros. better some static object or functions.
If not, then you'll have to write your own...

Answer 1

It is desirable(!) that these messages are not "started" through macros. better some static object or functions.

I think it's just a matter of C/C++. These are unmanaged languages, so you still have to work with pens.
Write a banal function to write a trace to a file:

void WriteMyTrace( char*pszTrace, ... ){
  va_list ap;
  FILE*f;
  va_start( ap, pszTrace );
  f = fopen( TRACE_FILE_NAME, "a" );
  vfprintf( f, pszTrace, ap );
  fclose( f );
  va_end( ap );
}

Write a macro that will call it:
And you place traps in your code:

...
if( !something( x, y, z ) ){
  TRACE( "something [%i, %x, %s]", x, y, z );
  return false;
}
if( !something_two( a, b ) ){
  TRACE( "something two [%i]", b - a );
  return false;
}
...

Tracer is ready. It wasn't difficult.
In my opinion, the question would be more interesting not about collecting traces, but about tools for their analysis , because. collecting them for a C/C++ programmer is not a problem, the format of their presentation is also not worth it, but correctly understanding and finding errors on them, especially in multi-threaded programs, is a completely different matter.

Answer 2

Because you first use the mysqli extension for connection and query, and then mysql. Don't use mysql. It has been outdated for a long time.