Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2026-01-08 08:22:41 +00:00
Code Issues Projects Releases Packages Wiki Activity

Revise the interface to the profiling and tracing support for the

Browse source 
Python interpreter.

This change adds two new C-level APIs:  PyEval_SetProfile() and
PyEval_SetTrace().  These can be used to install profile and trace
functions implemented in C, which can operate at much higher speeds
than Python-based functions.  The overhead for calling a C-based
profile function is a very small fraction of a percent of the overhead
involved in calling a Python-based function.

The machinery required to call a Python-based profile or trace
function been moved to sysmodule.c, where sys.setprofile() and
sys.setprofile() simply become users of the new interface.

As a side effect, SF bug #436058 is fixed; there is no longer a
_PyTrace_Init() function to declare.
This commit is contained in:
Fred Drake 2001-06-27 19:19:46 +00:00
parent 55fb6e0371
commit 5755ce693d
3 changed files with 182 additions and 150 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Python/pystate.c
View file

@ -120,8 +120,10 @@ PyThreadState_New(PyInterpreterState *interp)
tstate->exc_value = NULL;
tstate->exc_traceback = NULL;
tstate->sys_profilefunc = NULL;
tstate->sys_tracefunc = NULL;
tstate->c_profilefunc = NULL;
tstate->c_tracefunc = NULL;
tstate->c_profileobj = NULL;
tstate->c_traceobj = NULL;
HEAD_LOCK();
tstate->next = interp->tstate_head;
@ -152,8 +154,10 @@ PyThreadState_Clear(PyThreadState *tstate)
ZAP(tstate->exc_value);
ZAP(tstate->exc_traceback);
ZAP(tstate->sys_profilefunc);
ZAP(tstate->sys_tracefunc);
tstate->c_profilefunc = NULL;
tstate->c_tracefunc = NULL;
ZAP(tstate->c_profileobj);
ZAP(tstate->c_traceobj);
}