getdtablesize(2) BSD System Calls Manual getdtablesize(2)
NAME
getdtablesize -- get descriptor table size
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
int
getdtablesize(void);
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 getdtablesize() returns the
size of this table.
SEE ALSO
close(2), dup(2), open(2), select(2)
HISTORY
The getdtablesize() function call appeared in 4.2BSD.
BSD June 4, 1993 BSD
Mac OS X 10.6 - Generated Thu Sep 17 20:09:58 CDT 2009