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comparison Python/sysmodule.c @ 18136:4cb34314bd97 legacy-trunk

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Instead of initializing & interning the strings passed to the profile and trace functions lazily, which incurs extra argument pushing and checks in the C overhead for profiling/tracing, create the strings semi-lazily when the Python code first registers a profile or trace function. This simplifies the trampoline into the profile/trace functions.
author Fred Drake <fdrake@acm.org>
date Sat, 16 Jun 2001 21:02:31 +0000
parents beb9d2b02846
children 982163c4e9d2
comparison
equal deleted inserted replaced
18134:eff8da7c3dcb 18136:4cb34314bd97
194 static char setdefaultencoding_doc[] = 194 static char setdefaultencoding_doc[] =
195 "setdefaultencoding(encoding)\n\ 195 "setdefaultencoding(encoding)\n\
196 \n\ 196 \n\
197 Set the current default string encoding used by the Unicode implementation."; 197 Set the current default string encoding used by the Unicode implementation.";
198 198
199 extern int _PyTrace_Init(void);
200
199 static PyObject * 201 static PyObject *
200 sys_settrace(PyObject *self, PyObject *args) 202 sys_settrace(PyObject *self, PyObject *args)
201 { 203 {
202 PyThreadState *tstate = PyThreadState_Get(); 204 PyThreadState *tstate = PyThreadState_Get();
205 if (_PyTrace_Init() == -1)
206 return NULL;
203 if (args == Py_None) 207 if (args == Py_None)
204 args = NULL; 208 args = NULL;
205 else 209 else
206 Py_XINCREF(args); 210 Py_XINCREF(args);
207 Py_XDECREF(tstate->sys_tracefunc); 211 Py_XDECREF(tstate->sys_tracefunc);
218 222
219 static PyObject * 223 static PyObject *
220 sys_setprofile(PyObject *self, PyObject *args) 224 sys_setprofile(PyObject *self, PyObject *args)
221 { 225 {
222 PyThreadState *tstate = PyThreadState_Get(); 226 PyThreadState *tstate = PyThreadState_Get();
227 if (_PyTrace_Init() == -1)
228 return NULL;
223 if (args == Py_None) 229 if (args == Py_None)
224 args = NULL; 230 args = NULL;
225 else 231 else
226 Py_XINCREF(args); 232 Py_XINCREF(args);
227 Py_XDECREF(tstate->sys_profilefunc); 233 Py_XDECREF(tstate->sys_profilefunc);