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arangodb/Basics/system-functions.c

90 lines
2.5 KiB
C

////////////////////////////////////////////////////////////////////////////////
/// @brief High-Performance Database Framework made by triagens
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2010-2011 triagens GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Copyright 2009-2011, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
#include <Basics/Common.h>
// -----------------------------------------------------------------------------
// --SECTION-- public functions
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup OperatingSystem
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief safe gmtime
////////////////////////////////////////////////////////////////////////////////
void TRI_gmtime (time_t tt, struct tm* tb) {
#ifdef TRI_HAVE_GMTIME_R
gmtime_r(&tt, tb);
#else
#ifdef TRI_HAVE_GMTIME_S
gmtime_s(tb, &tt);
#else
struct tm* tp;
tp = gmtime(&tt);
if (tp != NULL) {
memcpy(tb, tp, sizeof(struct tm));
}
#endif
#endif
}
////////////////////////////////////////////////////////////////////////////////
/// @brief seconds with microsecond resolution
////////////////////////////////////////////////////////////////////////////////
double TRI_microtime () {
struct timeval t;
gettimeofday(&t, 0);
return (t.tv_sec) + (t.tv_usec / 1000000.0);
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// Local Variables:
// mode: outline-minor
// outline-regexp: "^\\(/// @brief\\|/// @addtogroup\\|// --SECTION--\\)"
// End: