.\" Copyright (c) 1983 The Regents of the University of California. .\" All rights reserved. .\" .\" %sccs.include.redist.man% .\" .\" @(#)getdtablesize.2 6.4 (Berkeley) %G% .\" .TH GETDTABLESIZE 2 "" .UC 5 .SH NAME getdtablesize \- get descriptor table size .SH SYNOPSIS .nf .ft B nfds = getdtablesize() int nfds; .fi .SH DESCRIPTION Each process has a fixed size descriptor table, which is guaranteed to have at least 20 slots. The entries in the descriptor table are numbered with small integers starting at 0. The call .I getdtablesize returns the size of this table. .SH "SEE ALSO" close(2), dup(2), open(2), select(2)