1 /*

     2  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.

     3  * Copyright (C) 2008 Google Inc. All rights reserved.

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions are

     7  * met:

     8  *

     9  *     * Redistributions of source code must retain the above copyright

    10  * notice, this list of conditions and the following disclaimer.

    11  *     * Redistributions in binary form must reproduce the above

    12  * copyright notice, this list of conditions and the following disclaimer

    13  * in the documentation and/or other materials provided with the

    14  * distribution.

    15  *     * Neither the name of Google Inc. nor the names of its

    16  * contributors may be used to endorse or promote products derived from

    17  * this software without specific prior written permission.

    18  *

    19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

    23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

    25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

    27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    30  */

    31 

    32 #ifndef CurrentTime_h

    33 #define CurrentTime_h

    34 

    35 #include <time.h>

    36 

    37 namespace WTF {

    38 

    39     // Returns the current UTC time in seconds, counted from January 1, 1970.

    40     // Precision varies depending on platform but is usually as good or better 

    41     // than a millisecond.

    42     double currentTime();

    43 

    44     // Same thing, in milliseconds.

    45     inline double currentTimeMS()

    46     {

    47         return currentTime() * 1000.0; 

    48     }

    49 

    50     inline void getLocalTime(const time_t* localTime, struct tm* localTM)

    51     {

    52     #if COMPILER(MSVC7_OR_LOWER) || COMPILER(MINGW) || OS(WINCE)

    53         *localTM = *localtime(localTime);

    54     #elif COMPILER(MSVC)

    55         localtime_s(localTM, localTime);

    56     #else

    57         localtime_r(localTime, localTM);

    58     #endif

    59     }

    60 

    61 } // namespace WTF

    62 

    63 using WTF::currentTime;

    64 using WTF::getLocalTime;

    65 

    66 #endif // CurrentTime_h

    67