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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Nicolas Ojeda Bar, LexiFi */
/* */
/* Copyright 2017 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. */
/* */
/**************************************************************************/
#define CAML_INTERNALS
#include <caml/fail.h>
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include <caml/signals.h>
#include <caml/osdeps.h>
#include <caml/winsupport.h>
#include "unixsupport.h"
#include <windows.h>
CAMLprim value caml_unix_utimes(value path, value atime, value mtime)
{
CAMLparam3(path, atime, mtime);
WCHAR *wpath;
HANDLE hFile;
CAML_ULONGLONG_FILETIME lastAccessTime, lastModificationTime;
SYSTEMTIME systemTime;
double at, mt;
BOOL res;
caml_unix_check_path(path, "utimes");
at = Double_val(atime);
mt = Double_val(mtime);
wpath = caml_stat_strdup_to_utf16(String_val(path));
caml_enter_blocking_section();
hFile = CreateFile(wpath,
FILE_WRITE_ATTRIBUTES,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS,
NULL);
caml_leave_blocking_section();
caml_stat_free(wpath);
if (hFile == INVALID_HANDLE_VALUE) {
caml_win32_maperr(GetLastError());
caml_uerror("utimes", path);
}
if (at == 0.0 && mt == 0.0) {
GetSystemTime(&systemTime);
SystemTimeToFileTime(&systemTime, &lastAccessTime.ft);
lastModificationTime.ul = lastAccessTime.ul;
} else {
lastAccessTime.ul =
(ULONGLONG)(at * 10000000.0) + CAML_NT_EPOCH_100ns_TICKS;
lastModificationTime.ul =
(ULONGLONG)(mt * 10000000.0) + CAML_NT_EPOCH_100ns_TICKS;
}
caml_enter_blocking_section();
res = SetFileTime(hFile, NULL, &lastAccessTime.ft, &lastModificationTime.ft);
caml_leave_blocking_section();
if (res == 0) {
caml_win32_maperr(GetLastError());
CloseHandle(hFile);
caml_uerror("utimes", path);
}
CloseHandle(hFile);
CAMLreturn(Val_unit);
}
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