Section (3) getdtablesize
getdtablesize — get file descriptor table size
getdtablesize() returns the
maximum number of files a process can have open, one more
than the largest possible value for a file descriptor.
can return any of the errors described for getrlimit(2); see NOTES
For an explanation of the terms used in this section, see attributes(7).
SVr4, 4.4BSD (the
getdtablesize() function first appeared in
4.2BSD). It is not specified in POSIX.1; portable
applications should employ
of this call.
implemented as a libc library function. The glibc version
calls getrlimit(2) and returns
OPEN_MAX when that
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Copyright 1993 Rickard E. Faith (faithcs.unc.edu)
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Modified 2002-04-15 by Roger Luethi <rlhellgate.ch> and aeb