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Diffstat (limited to 'Doc/c-api/init.rst')
| -rw-r--r-- | Doc/c-api/init.rst | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Doc/c-api/init.rst b/Doc/c-api/init.rst index 3467ed7..11cd551 100644 --- a/Doc/c-api/init.rst +++ b/Doc/c-api/init.rst @@ -615,6 +615,14 @@ supports the creation of additional interpreters (using deadlock ensues. (This function is available even when thread support is disabled at compile time.) + +.. cfunction:: void PyEval_ReInitThreads() + + This function is called from :cfunc:`PyOS_AfterFork` to ensure that newly + created child processes don't hold locks referring to threads which + are not running in the child process. + + The following macros are normally used without a trailing semicolon; look for example usage in the Python source distribution. @@ -876,6 +884,46 @@ in previous versions. :cfunc:`PyEval_SetProfile`, except the tracing function does receive line-number events. +.. cfunction:: PyObject* PyEval_GetCallStats(PyObject *self) + + Return a tuple of function call counts. There are constants defined for the + positions within the tuple: + + +-------------------------------+-------+ + | Name | Value | + +===============================+=======+ + | :const:`PCALL_ALL` | 0 | + +-------------------------------+-------+ + | :const:`PCALL_FUNCTION` | 1 | + +-------------------------------+-------+ + | :const:`PCALL_FAST_FUNCTION` | 2 | + +-------------------------------+-------+ + | :const:`PCALL_FASTER_FUNCTION`| 3 | + +-------------------------------+-------+ + | :const:`PCALL_METHOD` | 4 | + +-------------------------------+-------+ + | :const:`PCALL_BOUND_METHOD` | 5 | + +-------------------------------+-------+ + | :const:`PCALL_CFUNCTION` | 6 | + +-------------------------------+-------+ + | :const:`PCALL_TYPE` | 7 | + +-------------------------------+-------+ + | :const:`PCALL_GENERATOR` | 8 | + +-------------------------------+-------+ + | :const:`PCALL_OTHER` | 9 | + +-------------------------------+-------+ + | :const:`PCALL_POP` | 10 | + +-------------------------------+-------+ + + :const:`PCALL_FAST_FUNCTION` means no argument tuple needs to be created. + :const:`PCALL_FASTER_FUNCTION` means that the fast-path frame setup code is used. + + If there is a method call where the call can be optimized by changing + the argument tuple and calling the function directly, it gets recorded + twice. + + This function is only present if Python is compiled with :const:`CALL_PROFILE` + defined. .. _advanced-debugging: |