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/**************************************************************************/
/* */
/* OCaml */
/* */
/* File contributed by Josh Berdine */
/* */
/* Copyright 2011 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/mlvalues.h>
#include <caml/alloc.h>
#include "unixsupport.h"
#include <windows.h>
double to_sec(FILETIME ft) {
#if defined(_MSC_VER) && _MSC_VER < 1300
/* See gettimeofday.c - it is not possible for these values to be 64-bit, so
there's no worry about using a signed struct in order to work around the
lack of support for casting int64_t to double.
*/
LARGE_INTEGER tmp;
#else
ULARGE_INTEGER tmp;
#endif
tmp.u.LowPart = ft.dwLowDateTime;
tmp.u.HighPart = ft.dwHighDateTime;
/* convert to seconds:
GetProcessTimes returns number of 100-nanosecond intervals */
return tmp.QuadPart / 1e7;
}
value unix_times(value unit) {
value res;
FILETIME creation, exit, stime, utime;
if (!(GetProcessTimes(GetCurrentProcess(), &creation, &exit, &stime,
&utime))) {
win32_maperr(GetLastError());
uerror("times", Nothing);
}
res = alloc_small(4 * Double_wosize, Double_array_tag);
Store_double_field(res, 0, to_sec(utime));
Store_double_field(res, 1, to_sec(stime));
Store_double_field(res, 2, 0);
Store_double_field(res, 3, 0);
return res;
}
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