Initial commit of sync engine code to browser/sync....

chrome/browser/sync/notifier/base/posix/time_posix.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <assert.h>
+#include <sys/time.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "chrome/browser/sync/notifier/base/time.h"
+
+namespace notifier {
+
+time64 GetCurrent100NSTime() {
+  struct timeval tv;
+  struct timezone tz;
+
+  gettimeofday(&tv, &tz);
+
+  time64 retval = tv.tv_sec * kSecsTo100ns;
+  retval += tv.tv_usec * kMicrosecsTo100ns;
+  retval += kStart100NsTimeToEpoch;
+  return retval;
+}
+
+time64 TmToTime64(const struct tm& tm) {
+  struct tm tm_temp;
+  memcpy(&tm_temp, &tm, sizeof(struct tm));
+  time_t t = timegm(&tm_temp);
+  return t * kSecsTo100ns;
+}
+
+bool Time64ToTm(time64 t, struct tm* tm) {
+  assert(tm != NULL);
+  time_t secs = t / kSecsTo100ns;
+  gmtime_r(&secs, tm);
+  return true;
+}
+
+bool UtcTimeToLocalTime(struct tm* tm) {
+  assert(tm != NULL);
+  time_t t = timegm(tm);
+  localtime_r(&t, tm);
+  return true;
+}
+
+bool LocalTimeToUtcTime(struct tm* tm) {
+  assert(tm != NULL);
+  time_t t = mktime(tm);
+  gmtime_r(&t, tm);
+  return true;
+}
+
+}  // namespace notifier