On Thu, Sep 22, 2005 at 10:59:13AM +0200, Maciej Szumocki wrote:

Hello,

Just a question that has been bugging me and i can't figure out the answer on my own. Why is there a line like this in python.scripts._twistw runApp:

app.startApplication(internet.TimerService(0.1, lambda:None), 0)

while there is no such thing in python.scripts.twistd? Is it some Windows-specific workaround i need to worry about if i run my application without using twistd?

This seems to be a work around for the problem that Ctrl-C doesn't interrupt select on win32, so the event loop needs to be periodically woken up to give python a chance to process signals. However, the select reactor and win32 reactor at least already have workarounds for this, so I'm not sure why twistw bothers. -Andrew.

On Thu, Sep 22, 2005 at 10:59:13AM +0200, Maciej Szumocki wrote:

Hello,

Just a question that has been bugging me and i can't figure out the answer on my own. Why is there a line like this in python.scripts._twistw runApp:

app.startApplication(internet.TimerService(0.1, lambda:None), 0)

while there is no such thing in python.scripts.twistd? Is it some Windows-specific workaround i need to worry about if i run my application without using twistd?

This seems to be a work around for the problem that Ctrl-C doesn't interrupt select on win32, so the event loop needs to be periodically woken up to give python a chance to process signals. However, the select reactor and win32 reactor at least already have workarounds for this, so I'm not sure why twistw bothers. -Andrew.