NAME

       getdtablesize — get file descriptor limit

LIBRARY

       Standard C Library (libc, -lc)

SYNOPSIS

       #include <unistd.h>

       int
       getdtablesize(void);

DESCRIPTION

       The  getdtablesize()  system call returns the maximum number of file descriptors that the current process
       may open.  The maximum file descriptor number that the system may assign is the return value  minus  one.
       Existing file descriptor numbers may be higher if the limit was lowered after they were opened.

SEE ALSO

       close(2), closefrom(2), dup(2), getrlimit(2), sysconf(3)

HISTORY

       The getdtablesize() system call appeared in 4.2BSD.

Debian                                           April 24, 2013                                 GETDTABLESIZE(2)