Interpreter & Thread state & Frame structures.
musiccomposition at gmail.com
Thu Jan 8 04:27:44 CET 2009
On Jan 7, 7:42 am, alessiogiovanni.bar... at gmail.com wrote:
> Hi to all,
> there are some fields in the PyInterpreterState and PyThreadState
> 1) Why there are the fields *next and *tstate_head?
When there are multiple interpreters active, they are kept in a linked
list. *next refers to the next interpreter state in the list.
> 1) Why there is the field *next?
ditto for thread states
> An object PyFrameObject is a portion of code, with a state. But
> exactly? Contents of a method/function, or more simply any block
> indented of code? For example, this code:
> def foo(s):
> if s > 0:
> return True
> return False
> how much frames are?
1 in this case.
Each, module, class, function (and method) have a code object which
corresponds to one frame when it is executed.
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