June 4, 1993 GETDTABLESIZE 3

### NAME

getdtablesize - get descriptor table size

### LIBRARY

Standard C Library (libc, -lc)

### SYNOPSIS

```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), getrlimit(2), open(2), select(2), sysconf(3)

### HISTORY

The getdtablesize(``) function call appeared in 4.2BSD.