src/lwes_time_functions.c

   1 /*======================================================================*
   2  * Copyright (c) 2008, Yahoo! Inc. All rights reserved.                 *
   3  *                                                                      *
   4  * Licensed under the New BSD License (the "License"); you may not use  *
   5  * this file except in compliance with the License.  Unless required    *
   6  * by applicable law or agreed to in writing, software distributed      *
   7  * under the License is distributed on an "AS IS" BASIS, WITHOUT        *
   8  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     *
   9  * See the License for the specific language governing permissions and  *
  10  * limitations under the License. See accompanying LICENSE file.        *
  11  *======================================================================*/
  12
  13 #include "lwes_time_functions.h"
  14
  15 #if HAVE_CONFIG_H
  16   #include <config.h>
  17 #endif
  18
  19 #if HAVE_EXTERNAL_GETTIMEOFDAY
  20 #include EXTERNAL_GETTIMEOFDAY_HEADER
  21 #endif
  22
  23 #ifndef GETTIMEOFDAY
  24 #define GETTIMEOFDAY(t,tz) gettimeofday(t,tz)
  25 #endif
  26
  27
  28 LWES_INT_64 currentTimeMillisLongLong(void)
  29 {
  30   struct timeval t;
  31
  32   /* gettimeofday should ALWAYS return a value since the only possible error
  33    * according to the FreeBSD and Linux man pages is EFAULT if you access
  34    * invalid memory, this memory is on the stack so better be valid or we
  35    * have bigger problems
  36    */
  37   GETTIMEOFDAY(&t,0);
  38
  39   return ((((LWES_INT_64)t.tv_sec)*((LWES_INT_64)1000)) +
  40                              (LWES_INT_64)(t.tv_usec/1000));
  41 }
  42
  43 void convertUnixLongLongTimeToTimeval(LWES_INT_64 timestamp, struct timeval *t)
  44 {
  45   t->tv_sec = (long)(timestamp/1000);
  46   t->tv_usec = (long)((timestamp%1000)*1000);
  47 }
  48