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

       FileCache - keep more files open than the system permits

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

	   cacheout $path;
	   print $path @data;

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

       The "cacheout" function will make sure that there's a filehandle open for reading or writ-
       ing 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 subse-
	   quent openings. Most valid modes for 3-argument "open" are supported namely; '>',
	   '+>', '<', '<+', '>>',  '|-'  and  '-|'

       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 call-
       ing "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".

       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)
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