diff options
Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/signal.rst | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst index 3f17e08..67ee979 100644 --- a/Doc/library/signal.rst +++ b/Doc/library/signal.rst @@ -216,6 +216,15 @@ The :mod:`signal` module defines the following functions: .. versionadded:: 3.8 +.. function:: valid_signals() + + Return the set of valid signal numbers on this platform. This can be + less than ``range(1, NSIG)`` if some signals are reserved by the system + for internal use. + + .. versionadded:: 3.8 + + .. function:: pause() Cause the process to sleep until a signal is received; the appropriate handler @@ -268,8 +277,8 @@ The :mod:`signal` module defines the following functions: argument. *mask* is a set of signal numbers (e.g. {:const:`signal.SIGINT`, - :const:`signal.SIGTERM`}). Use ``range(1, signal.NSIG)`` for a full mask - including all signals. + :const:`signal.SIGTERM`}). Use :func:`~signal.valid_signals` for a full + mask including all signals. For example, ``signal.pthread_sigmask(signal.SIG_BLOCK, [])`` reads the signal mask of the calling thread. |