Interrupted system call issues

[Keith Davidson]

In order to get Medusa to play nicely in an application that uses 
SIGALRM, I had to make some changes to asyncore.py. Basically the 
change causes EINTR to be ignored if it is raised during the select
(). According to "UNIX Network Programming" pg 124, it is ok to 
restart accept(), read(), write(), select(), etc after an EINTR. My 
questions...

1) Is simply ignoring the exception the right way to 'restart' the 
select() call?
2) Any other options for making Medusa work in an app with SIGALRM 
(no... I can't get rid of the SIGALRMs ;-).
3) Any possibility of incorporating this into the official version of 
Medusa if all the networking gurus agree it is correct?

Thanks!
Keith

35d34
< EINTR = 10004
43c42
< from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, 
ECONNRESET, ENOTCONN, ESHUTDOWN, EINTR
---
> from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, 
ECONNRESET, ENOTCONN, ESHUTDOWN
56,61c55
< while 1:
< try:
< (r,w,e) = select.select (r,w,e, 
timeout)
< break
< except select.error, (errno, errstr):
< if errno != EINTR: raise
---
> (r,w,e) = select.select (r,w,e, timeout)