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| GETDTABLESIZE(2) | FreeBSD System Calls Manual | GETDTABLESIZE(2) |
NAME
getdtablesize —
get file descriptor limit
LIBRARY
Standard C Library (libc, -lc)SYNOPSIS
#include <unistd.h>
int
getdtablesize(void);
DESCRIPTION
Thegetdtablesize() 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
Thegetdtablesize() system call appeared in
4.2BSD.
| April 24, 2013 | FreeBSD 13.1-RELEASE |
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