JonathanB wrote: > I have a multi-access problem that I'm pretty sure needs to be solved > with threading, but I'm not sure how to do it. This will be my first > foray into threading, so I'm a little confused by all of the new > landscape. So, I'm going to lay out the problem I'm facing and if > someone could point me towards a good example of what I need to do, > that would be great. I read THE tutorial, and while it made since to > me in an esoteric sense, I'm not sure how to implement it. > > I have a program which will be logging who took what orders. These > orders need to have sequential order numbers. SR001001, SR001002, > SR001003, etc. Problem is I'm not sure how many people will be > accessing this program at the same time. I thought about separating > the order number into its own file and the having a function open it, > read it, increment it, write it, and close it really quick to limit > the chance of two people pulling the same number. Then I heard found > threading. > > So this sounds like a consumer/producer problem, right? So I think I > need to use a Queue to crank out quote numbers and have the users > connect to the queue to get their number. Does that mean I'm looking > at two separate programs, a server and a client? Where do I separate > the programs? I was just about to give up and have quote number > assignment be manual (with error checking), but I thought I should > check here first and see if someone could help me wrap my brain around > this problem. You'll never learn if you never try, right? > Just use a database with an auto-incrementing column. It will handle all the "threading" that you think you require and each call will return the next number you need.
-Larry -- http://mail.python.org/mailman/listinfo/python-list