diff options
Diffstat (limited to 'Python/sysmodule.c')
| -rw-r--r-- | Python/sysmodule.c | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index fa39480..51bd85b 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -448,10 +448,18 @@ Return the profiling function set with sys.setprofile.\n\ See the profiler chapter in the library manual." ); +/* TODO: deprecate */ +static int _check_interval = 100; + static PyObject * sys_setcheckinterval(PyObject *self, PyObject *args) { - if (!PyArg_ParseTuple(args, "i:setcheckinterval", &_Py_CheckInterval)) + if (PyErr_WarnEx(PyExc_DeprecationWarning, + "sys.getcheckinterval() and sys.setcheckinterval() " + "are deprecated. Use sys.setswitchinterval() " + "instead.", 1) < 0) + return NULL; + if (!PyArg_ParseTuple(args, "i:setcheckinterval", &_check_interval)) return NULL; Py_INCREF(Py_None); return Py_None; @@ -467,13 +475,59 @@ n instructions. This also affects how often thread switches occur." static PyObject * sys_getcheckinterval(PyObject *self, PyObject *args) { - return PyLong_FromLong(_Py_CheckInterval); + if (PyErr_WarnEx(PyExc_DeprecationWarning, + "sys.getcheckinterval() and sys.setcheckinterval() " + "are deprecated. Use sys.getswitchinterval() " + "instead.", 1) < 0) + return NULL; + return PyLong_FromLong(_check_interval); } PyDoc_STRVAR(getcheckinterval_doc, "getcheckinterval() -> current check interval; see setcheckinterval()." ); +#ifdef WITH_THREAD +static PyObject * +sys_setswitchinterval(PyObject *self, PyObject *args) +{ + double d; + if (!PyArg_ParseTuple(args, "d:setswitchinterval", &d)) + return NULL; + if (d <= 0.0) { + PyErr_SetString(PyExc_ValueError, + "switch interval must be strictly positive"); + return NULL; + } + _PyEval_SetSwitchInterval((unsigned long) (1e6 * d)); + Py_INCREF(Py_None); + return Py_None; +} + +PyDoc_STRVAR(setswitchinterval_doc, +"setswitchinterval(n)\n\ +\n\ +Set the ideal thread switching delay inside the Python interpreter\n\ +The actual frequency of switching threads can be lower if the\n\ +interpreter executes long sequences of uninterruptible code\n\ +(this is implementation-specific and workload-dependent).\n\ +\n\ +The parameter must represent the desired switching delay in seconds\n\ +A typical value is 0.005 (5 milliseconds)." +); + +static PyObject * +sys_getswitchinterval(PyObject *self, PyObject *args) +{ + return PyFloat_FromDouble(1e-6 * _PyEval_GetSwitchInterval()); +} + +PyDoc_STRVAR(getswitchinterval_doc, +"getswitchinterval() -> current thread switch interval; see setswitchinterval()." +); + +#endif /* WITH_THREAD */ + #ifdef WITH_TSC static PyObject * sys_settscdump(PyObject *self, PyObject *args) @@ -895,6 +949,12 @@ static PyMethodDef sys_methods[] = { setcheckinterval_doc}, {"getcheckinterval", sys_getcheckinterval, METH_NOARGS, getcheckinterval_doc}, +#ifdef WITH_THREAD + {"setswitchinterval", sys_setswitchinterval, METH_VARARGS, + setswitchinterval_doc}, + {"getswitchinterval", sys_getswitchinterval, METH_NOARGS, + getswitchinterval_doc}, +#endif #ifdef HAVE_DLOPEN {"setdlopenflags", sys_setdlopenflags, METH_VARARGS, setdlopenflags_doc}, |