NAME

getdtablesize − get descriptor table size

SYNOPSIS

nfds = getdtablesize()
int nfds;

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. 

Note that POSIX applications have a static table size given by the constant OPEN_MAX. 

SEE ALSO

close(2), dup(2), open(2), select(2)

4.2 Berkeley Distribution  —  June 28, 1985