Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity

Added information about setprofile() and settrace() hooks being thread- 

specific, and updated some of the comments about the profile hook.
This closes SF bug #471725.
This commit is contained in:
Fred Drake 2001-10-16 14:54:22 +00:00
parent a815916472
commit 64d7863797
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
Doc/lib/libsys.tex
View File

@ -369,7 +369,11 @@ else:
information on the Python profiler. The system's profile function
is called similarly to the system's trace function (see
\function{settrace()}), but it isn't called for each executed line
of code (only on call and return and when an exception occurs).
of code (only on call and return, but the return event is reported
even when an exception has been set). The function is
thread-specific, but there is no way for the profiler to know about
context switches between threads, so it does not make sense to use
this in the presence of multiple threads.
Also, its return value is not used, so it can simply return
\code{None}.
\end{funcdesc}
@ -389,7 +393,10 @@ else:
Set the system's trace function,\index{trace function} which allows
you to implement a Python source code debugger in Python. See
section \ref{debugger-hooks}, ``How It Works,'' in the chapter on
the Python debugger.\index{debugger}
the Python debugger.\index{debugger} The function is
thread-specific; for a debugger to support multiple threads, it must
be registered using \function{settrace()} for each thread being
debugged.
\end{funcdesc}
\begin{datadesc}{stdin}