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Update thread safety documentation 

Closes #1302
This commit is contained in:
Martin Hořeňovský 2018-06-28 22:35:42 +02:00
parent 7d00cb83f1
commit ebf89000f1
1 changed files with 5 additions and 3 deletions
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docs/limitations.md
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@ -21,7 +21,9 @@ TEST_CASE( "Looped section" ) {
This section outlines some missing features, what is their status and their possible workarounds.
### Thread safe assertions
Because threading support in standard C++98 is limited (well, non-existent), assertion macros in Catch are not thread safe. This does not mean that you cannot use threads inside Catch's test, but that only single thread can interact with Catch's assertions and other macros.
Catch2's assertion macros are not thread safe. This does not mean that
you cannot use threads inside Catch's test, but that only single thread
can interact with Catch's assertions and other macros.
This means that this is ok
```cpp
@ -49,8 +51,8 @@ because only one thread passes the `REQUIRE` macro and this is not
REQUIRE(cnt == 16);
```
_This limitation is highly unlikely to be lifted before Catch 2 is released._
Because C++11 provides the necessary tools to do this, we are planning
to remove this limitation in the future.
### Process isolation in a test
Catch does not support running tests in isolated (forked) processes. While this might in the future, the fact that Windows does not support forking and only allows full-on process creation and the desire to keep code as similar as possible across platforms, mean that this is likely to take significant development time, that is not currently available.