?? 25.11.2010 12:39, Marco van de Voort ???????(??):
In our previous episode, Anton Kavalenka said:
On 25 Nov 2010, at 10:52, Anton Kavalenka wrote:
Due to incompatibility of RTL between FPC and Delphi my capturing
tricks not work.
BTW what the real reason to make these files as threadvar?
To prevent multiple threads writing to stdin/stdout/sterr at the same
time from corrupting each other's data (all of these text files use an
internal buffer, even when the output is immediately flushed afterwards).
lock_output();
try
// do something nasty with the buffer
finally
flush(output);
unlock_output();
end;
There is NO other runtimes on this planet instead FPC RTL which take
care of per-thread buffer of output.
It is programmers duty to lock/flush buffer in multithreaded environments.
Such solutions are fine for slow apps, but in a fast pace, app, this means
that the logging with its locks has a significant impact on the behaviour of
the application.
And IMHO the RTL should be workable for all kinds of apps.
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OK, let's replace threadvar for those variables with var.
regards,
Anton
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