1. Open file limit
- Posted by Michael Sabal <mikes at notations.com> May 23, 2001
- 441 views
I use Business Basic on a daily basis for my company's mission-critical = application. While I've redesigned a number of parts of the system to fix = bugs and adapt the system to changing business needs, there are a number = of things which the original designers did that would be difficult to = change. Business Basic (BBx), like many other database languages, opens all its = files at once, with one file representing a single table. This can easily = result in as many as 100 files being opened simultaneously. If I were to = port this system to Euphoria (when I mentioned it to my boss once, he gave = me this queer look), there would be a number of changes that would keep = the 22 file limit (0,1, and 2 are already used for stdin, stdout, and = stderr) realistic. I can include several tables into a single .edb file. = The current system has a lot of duplicity (which was included to make up = for the slow speed of BBx) that would be unnecessary in Euphoria. = Finally, I would never use all 100 files simultaneously. So throughout my = program, I would only open the files needed for a particular routine and = import the necessary data into a memory-held sequence. And before the = routine was finished, I would close all the files that were opened in that = routine to free up the file ids. In Euphoria, especially in a business = environment, keeping files open for the least amount of time necessary is = just good programming practice. HTH, Michael J. Sabal