gettimeofday for windows

git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@527 d0cd1f9f-072b-0410-8dd7-cf729c803f20

vs2008/include/Makefile.in

@@ -562,7 +562,6 @@ uninstall-am:
 	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-recursive \
 	uninstall uninstall-am
 
-	tiffvers.h zconf.h zlib.h
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.

vs2008/port/gettimeofday.cpp

+/*
+ * gettimeofday.c
+ *    Win32 gettimeofday() replacement
+ *
+ * $PostgreSQL: pgsql/src/port/gettimeofday.c,v 1.9 2006/03/04 04:44:07 momjian Exp $
+ *
+ * Copyright (c) 2003 SRA, Inc.
+ * Copyright (c) 2003 SKC, Inc.
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose, without fee, and without a
+ * written agreement is hereby granted, provided that the above
+ * copyright notice and this paragraph and the following two
+ * paragraphs appear in all copies.
+ *
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT,
+ * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
+ * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
+ * DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS
+ * IS" BASIS, AND THE AUTHOR HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
+ * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+//*#include "c.h"
+
+//#include <sys/time.h>
+#ifdef __MSW32__
+#include          <winsock.h>    // timeval is defined in here.
+#endif
+
+/* FILETIME of Jan 1 1970 00:00:00. */
+//static const unsigned __int64 epoch = UINT64CONST(116444736000000000);
+static const unsigned __int64 epoch = 11644473600000000Ui64;
+
+struct timezone
+{
+ int  tz_minuteswest; /* minutes W of Greenwich */
+ int  tz_dsttime;     /* type of dst correction */
+};
+
+/*
+ * timezone information is stored outside the kernel so tzp isn't used anymore.
+ *
+ * Note: this function is not for Win32 high precision timing purpose. See
+ * elapsed_time().
+ */
+int
+gettimeofday(struct timeval * tp, struct timezone * tzp)
+{
+	FILETIME	file_time;
+	SYSTEMTIME	system_time;
+	ULARGE_INTEGER ularge;
+
+	GetSystemTime(&system_time);
+	SystemTimeToFileTime(&system_time, &file_time);
+	ularge.LowPart = file_time.dwLowDateTime;
+	ularge.HighPart = file_time.dwHighDateTime;
+
+	tp->tv_sec = (long) ((ularge.QuadPart - epoch) / 10000000L);
+	tp->tv_usec = (long) (system_time.wMilliseconds * 1000);
+
+	return 0;
+}

vs2008/port/gettimeofday.h

+///////////////////////////////////////////////////////////////////////
+// File:        gettimeofday.h
+// Description: Header file for gettimeofday.c (source postgreslq.org)
+// Author:      zdenop
+// Created:     Fri Nov 19 21:05:06 CET 2010
+//
+// (C) Copyright 2010, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifdef __MSW32__
+#include          <winsock.h>    // timeval is defined in here.
+#endif
+
+typedef struct  timezone tz;
+
+int gettimeofday(struct timeval * tp, struct timezone * tzp);
\ No newline at end of file