getdtablesize(3)                                       getdtablesize(3)

  getdtablesize()

  NAME

    getdtablesize() - return file descriptor table size

  SYNOPSIS

    #include 

    int getdtablesize(void);

  DESCRIPTION

    The getdtablesize(3) call returns the current limit on the number of file
    descriptors.

    This is equivalent to the call getrlimit(2) with the option RLIMIT_NOFILE.

  RETURN VALUE

    The getdtablesize(3) function returns the current soft limit on the number
    of files open by a process.

  NOTES

    In previous releases of INTERIX, this was a macro that returned
    {OPEN_MAX}. It's equivalent to:

    sysconf(_SC_OPEN_MAX);

  SEE ALSO

    select(2)

  USAGE NOTES

    The getdtablesize function is thread safe.

    The getdtablesize function is not async-signal safe.