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Diffstat (limited to 'Doc/c-api/sys.rst')
| -rw-r--r-- | Doc/c-api/sys.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Doc/c-api/sys.rst b/Doc/c-api/sys.rst index 212f4d1..d3bbee2 100644 --- a/Doc/c-api/sys.rst +++ b/Doc/c-api/sys.rst @@ -33,6 +33,12 @@ Operating System Utilities that clones the current process. Only available on systems where :c:func:`fork` is defined. + .. warning:: + The C :c:func:`fork` call should only be made from the + :ref:`"main" thread <fork-and-threads>` (of the + :ref:`"main" interpreter <sub-interpreter-support>`). The same is + true for ``PyOS_BeforeFork()``. + .. versionadded:: 3.7 @@ -44,6 +50,12 @@ Operating System Utilities of whether process cloning was successful. Only available on systems where :c:func:`fork` is defined. + .. warning:: + The C :c:func:`fork` call should only be made from the + :ref:`"main" thread <fork-and-threads>` (of the + :ref:`"main" interpreter <sub-interpreter-support>`). The same is + true for ``PyOS_AfterFork_Parent()``. + .. versionadded:: 3.7 @@ -55,6 +67,12 @@ Operating System Utilities any chance the process will call back into the Python interpreter. Only available on systems where :c:func:`fork` is defined. + .. warning:: + The C :c:func:`fork` call should only be made from the + :ref:`"main" thread <fork-and-threads>` (of the + :ref:`"main" interpreter <sub-interpreter-support>`). The same is + true for ``PyOS_AfterFork_Child()``. + .. versionadded:: 3.7 .. seealso:: |