getdtablesize - phpMan

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  version  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)

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