On Fri, 18 Oct 2024, Nikolay Nikolov via fpc-devel wrote:
On 10/18/24 12:10 AM, Martin Frb via fpc-devel wrote:
https://wiki.freepascal.org/Threadvar
If threads are used then a copy is made for each thread (including
the main thread). Note that the copy is made with the original value
of the variable, not with the value of the variable at the time the
thread is started.
But what is that original value? Since
threadvar
foo: integer = 1;
gives
Error: Cannot initialize variables declared as threadvar
I think the documentation is wrong. Threadvars are always initialized as
zero.
Then please explain what do copy_all_unit_threadvars and copy_unit_threadvars
do ?
This is called from InitThreadVars when a new thread is started.
Michael.
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