FileCache(3pm)						 Perl Programmers Reference Guide					    FileCache(3pm)

NAME

       FileCache - keep more files open than the system permits

SYNOPSIS

	   use FileCache;
	   # or
	   use FileCache maxopen => 16;

	   cacheout $path;
	   print $path @data;

	   cacheout $mode, $path;
	   print $path @data;

DESCRIPTION

       The "cacheout" function will make sure that there's a filehandle open for reading or writing available as the pathname you give it. It
       automatically closes and re-opens files if you exceed  your system's maximum number of file descriptors, or the suggested maximum.

       cacheout EXPR
	   The 1-argument form of cacheout will open a file for writing ('>') on it's first use, and appending ('>>') thereafter.

       cacheout MODE, EXPR
	   The 2-argument form of cacheout will use the supplied mode for the initial and subsequent openings. Most valid modes for 3-argument
	   "open" are supported namely; '>', '+>', '<', '<+', '>>',  '|-'  and	'-|'

CAVEATS

       If you use cacheout with '|-' or '-|' you should catch SIGPIPE and explicitly close the filehandle., when it is closed from the other end
       some cleanup needs to be done.

       While it is permissible to "close" a FileCache managed file, do not do so if you are calling "FileCache::cacheout" from a package other
       than which it was imported, or with another module which overrides "close".  If you must, use "FileCache::cacheout_close".

BUGS

       sys/param.h lies with its "NOFILE" define on some systems, so you may have to set maxopen ($FileCache::cacheout_maxopen) yourself.

perl v5.8.0							    2002-06-01							    FileCache(3pm)