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Fix crashes in swig_connect_director during director class construction.

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Occurs when using the director class from multiple threads - a race condition
initialising block scope static variables.

Block scope static variables are guaranteed to be thread safe in C++11,
so the fix is guaranteed when using C++11. However, most modern compilers
also fix it when using C++03/C++98.

Closes #1862
This commit is contained in:
William S Fulton 2020-08-28 18:23:47 +01:00
commit b018c32f9d
3 changed files with 30 additions and 21 deletions
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@ -7,6 +7,12 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
Version 4.1.0 (in progress)
===========================
2020-08-28: wsfulton
[Java] #1862 Fix crashes in swig_connect_director during director class construction
when using the director class from multiple threads - a race condition initialising
block scope static variables. The fix is guaranteed when using C++11, but most
compilers also fix it when using C++03/C++98.
2020-08-16: wsfulton
[Python] Add missing initializer for member ‘_heaptypeobject::ht_module’ when using
-builtin to complete Python 3.9 support.