Re: [boost] library for managing a large number of FILE objects

From: John Torjo (john.lists_at_[hidden])
Date: 2004-04-16 01:16:44

Jody Hagins wrote:

>I know that C++ IOStreams are supposed to take over the world, and
>cstdio with FILE is considered taboo by some C++ efficionados.  However,
>due to many reasons, lots of code still uses cstdio FILE I/O.  One issue
>that comes up from time to time is the need to manage more files than
>the OS will allow a single process to have open simultaneously.  I
>process tons of data, and this is an issue for me.  I have developed a
>  
>

But don't use close a file after you've used it? You mean to tell me you 
want to actually keep all 10000 files open at all times? That seems a 
little extreme, or crazy or something ;)

If you need something like this (which I think would happen very 
rarely), you can simply have a cache which opens FILEs on demand. You 
just request a read or write with a file name. Internally, if that file 
name is open, do read or write. Otherwise, open it and do the same. This 
should be a very simple class - no more than 100 lines of code.

Best,
John