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 * Copyright (C) 1990-2007, Condor Team, Computer Sciences Department,
 * University of Wisconsin-Madison, WI.
 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

#if !defined(_CONDOR_UTC_TIME_H)

/** The UtcTime class is a C++ representation of the current UTC time.
      It's a portable way to get finer granularity than seconds (we
      provide microseconds).  It also provides a method to compare
      two UtcTime objects and get the difference between them.

00031 class UtcTime 

            /// Default constructor, does not compute current time by default
      UtcTime( bool get_time = false );

            /// Compute the current time
      void getTime( void );

            /// Return the last computed epoch time in seconds
00042       long seconds( void ) const { return sec; };

            /// Return mircosecond field of the last computed epoch time
00045       long microseconds( void ) const { return usec; };

            // Return the last computed time as a floating point combination
            // of seconds and microseconds
      double combined( void ) const { return( sec + usec/1000000.0 ); };

            /** How much time elapsed between the two times.  This method
                  subtracts the time of the other UtcTime object we're
                  passed from the value in this current object.
                  @param other_time Another UtcTime class to compare against
                  @return The elapsed time between the two, represented as a
                  double precision float, with both seconds and micro
                  seconds in the same number.
      double difference( const UtcTime* other_time ) const;
      double difference( const UtcTime &other_time ) const;


      long sec;
      long usec;

bool operator==(const UtcTime &lhs, const UtcTime &rhs);

#endif /* _CONDOR_UTC_TIME_H */

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