getdtablesize

GETDTABLESIZE(2)           Linux Programmer's Manual          GETDTABLESIZE(2)



NAME
       getdtablesize - get descriptor table size

SYNOPSIS
       #include <unistd.h>

       int getdtablesize(void);

DESCRIPTION
       getdtablesize  returns  the  maximum number of files a process can have
       open, one more than the largest possible value for a file descriptor.

RETURN VALUE
       The current limit on the number of open files per process.

NOTES
       getdtablesize is implemented as a libc library function. The glibc ver-
       sion calls getrlimit(2) and returns the current RLIMIT_NOFILE limit, or
       OPEN_MAX when that fails.  The libc4 and libc5 versions return OPEN_MAX
       (set to 256 since Linux 0.98.4).

CONFORMING TO
       SVr4, 4.4BSD (the getdtablesize function first appeared in BSD 4.2).

SEE ALSO
       close(2), dup(2), getrlimit(2), open(2)



Linux 2.4                         2002-04-15                  GETDTABLESIZE(2)