getdtablesize (2)

Leading comments

 Copyright (c) 1983, 1991, 1993
	The Regents of the University of California.  All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the fol...

(The comments found at the beginning of the groff file "man2/getdtablesize.2freebsd".)

NAME

getdtablesize - get file descriptor limit

LIBRARY

Lb libc

SYNOPSIS

In unistd.h Ft int Fn getdtablesize void

DESCRIPTION

The Fn 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(2)

HISTORY

The Fn getdtablesize system call appeared in BSD 4.2