Re: gdk-pixbuf portability patch again

[Owen Taylor <otaylor redhat com>]

Tor Lillqvist <tml iki fi> writes:

> Owen Taylor writes:
>  >  #include <unistd.h> /* for unlink */
> 
> BTW, wouldn't it be slightly better to use remove() (from stdio.h)
> instead of unlink(). (IMHO it fits better if you are already using
> stdio-level functions, and not open/read/write/etc.)

Hmmm, I'd say only if unlink is a portability problem. remove
is just a wee bit slower - the glibc implementation is:

  int
  remove (file)
     const char *file;
  {
    int save;

    save = errno;
    if (__rmdir (file) == 0)
      return 0;
    else if (errno == ENOTDIR && __unlink (file) == 0)
      {
        __set_errno (save);
        return 0;
      }

    return -1;
  }

So ends up doing two syscalls, not just one. (I don't see any
particular reason why the two calls aren't reversed, since removing
files seems like it will happen a lot more than removing directories,
but there may be some subtle reason.)

But there is no real connection between remove() and stdio other
than the header file - the difference is merely the handling
of directories. 

Anyways, the extent to which this matters either way seems to
be pretty small..

                                        Owen