GETDTABLESIZE(2) BSD Programmer's Manual GETDTABLESIZE(2)NAMEgetdtablesize - get descriptor table size
SYNOPSIS
#include <unistd.h>
int
getdtablesize(void);
DESCRIPTION
This call is now obsolete. The number of open file descriptors per pro-
cess is now variable and may be set using setrlimit(2) and extracted us-
ing getrlimit(2).
Each process has a file 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 ALSOclose(2), dup(2), setrlimit(2), open(2), select(2)HISTORY
The getdtablesize function call appeared in 4.2BSD.
4.2 Berkeley Distribution June 4, 1993 1