CAMLprim value unix_fstat_64(value handle)
{
int ret;
struct _stati64 buf;
ret = _fstati64(win_CRT_fd_of_filedescr(handle), &buf);
if (ret == -1) uerror("fstat", Nothing);
return stat_aux(1, &buf);
}
CAMLprim value win_inchannel_of_filedescr(value handle)
{
CAMLparam1(handle);
CAMLlocal1(vchan);
struct channel * chan;
chan = caml_open_descriptor_in(win_CRT_fd_of_filedescr(handle));
if (Descr_kind_val(handle) == KIND_SOCKET)
chan->flags |= CHANNEL_FLAG_FROM_SOCKET;
vchan = caml_alloc_channel(chan);
CAMLreturn(vchan);
}
CAMLprim value unix_fstat(value handle)
{
int ret;
struct _stati64 buf;
ret = _fstati64(win_CRT_fd_of_filedescr(handle), &buf);
if (ret == -1) uerror("fstat", Nothing);
if (buf.st_size > Max_long) {
win32_maperr(ERROR_ARITHMETIC_OVERFLOW);
uerror("fstat", Nothing);
}
return stat_aux(0, &buf);
}
CAMLprim value unix_dup2(value fd1, value fd2)
{
HANDLE oldh, newh;
oldh = Handle_val(fd2);
if (! DuplicateHandle(GetCurrentProcess(), Handle_val(fd1),
GetCurrentProcess(), &newh,
0L, TRUE, DUPLICATE_SAME_ACCESS)) {
win32_maperr(GetLastError());
return -1;
}
Handle_val(fd2) = newh;
if (Descr_kind_val(fd2) == KIND_SOCKET)
closesocket((SOCKET) oldh);
else
CloseHandle(oldh);
Descr_kind_val(fd2) = Descr_kind_val(fd1);
/* Reflect the dup2 on the CRT fds, if any */
if (CRT_fd_val(fd1) != NO_CRT_FD || CRT_fd_val(fd2) != NO_CRT_FD)
_dup2(win_CRT_fd_of_filedescr(fd1), win_CRT_fd_of_filedescr(fd2));
return Val_unit;
}