Manual pages › BSD C library (3B)
getdtblsz(3B)
get descriptor table size
From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.
NAME
getdtablesize - get descriptor table size
SYNOPSIS
cc [ flag... ] file ... -lucb long getdtablesize()
DESCRIPTION
Each process has a 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 getdtablesize returns the current maximum size of this table by calling the getrlimit system call.
SEE ALSO
close(2), dup(2), getrlimit(2), and open(2) in the Programmer's Reference Manual.