blob: 7f058a89a2c39a2028a07d22d4a3fa1971499832 [file] [log] [blame]
.. title:: clang-tidy - concurrency-thread-canceltype-asynchronous
Finds ``pthread_setcanceltype`` function calls where a thread's cancellation
type is set to asynchronous. Asynchronous cancellation type
(``PTHREAD_CANCEL_ASYNCHRONOUS``) is generally unsafe, use type
``PTHREAD_CANCEL_DEFERRED`` instead which is the default. Even with deferred
cancellation, a cancellation point in an asynchronous signal handler may still
be acted upon and the effect is as if it was an asynchronous cancellation.
.. code-block: c++
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldtype);
This check corresponds to the CERT C Coding Standard rule
`POS47-C. Do not use threads that can be canceled asynchronously