TimeVal.hxx
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上传日期:2013-07-25
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- #if !defined(TIME_VAL_DOT_H)
- #define TIME_VAL_DOT_H
- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const TimeValHeaderVersion =
- "$Id: TimeVal.hxx,v 1.8 2001/06/29 03:56:00 bko Exp $";
- #include "Writer.hxx"
- #ifndef WIN32
- #include <sys/time.h>
- #include <unistd.h>
- #else
- #include <winsock.h>
- #endif
- /** Infrastructure common to VOCAL.
- */
- namespace Vocal
- {
- /** Infrastructure common to VOCAL to manipulate the time.<br><br><br>
- */
- namespace TimeAndDate
- {
- #if !defined(VOCAL_MILLISECONDS_T)
- #define VOCAL_MILLISECONDS_T
- /** 1/1000th of a second.<br><br>
- */
- typedef int milliseconds_t;
- #endif // !defined(VOCAL_MILLISECONDS_T)
- /** A wrapper for the operating system's timeval structure.<br><br>
- */
- class TimeVal : public timeval, public Vocal::IO::Writer
- {
- public:
- /** Default constructor.
- */
- TimeVal();
- /** Millisecond constructor.
- */
- TimeVal(milliseconds_t);
- /** Seconds, microseconds constructor.
- */
- TimeVal(long sec, long usec);
-
-
- /** Copy constructor.
- */
- TimeVal(const timeval &);
- /** Virtual desctructor.
- */
- virtual ~TimeVal();
- /** Assignment operator.
- */
- TimeVal & operator=(const timeval &);
- /** Set this timeval with the current time. Wrapper for gettimeofday.
- */
- const TimeVal & now();
- /** Return the number of milliseconds.
- */
- milliseconds_t milliseconds() const;
- /** Addition operator.
- */
- TimeVal operator+(const timeval &) const;
- /** Addition operator, millisecond version.
- */
- TimeVal operator+(milliseconds_t) const;
- /** Addition and assignment operator.
- */
- TimeVal & operator+=(const timeval &);
- /** Addition and assignment operator, millisecond version.
- */
- TimeVal & operator+=(milliseconds_t);
- /** Subtraction operator.
- */
- TimeVal operator-(const timeval &) const;
- /** Subtraction operator, millisecond version.
- */
- TimeVal operator-(milliseconds_t) const;
- /** Subtraction and assignment operator.
- */
- TimeVal & operator-=(const timeval &);
- /** Subtraction and assignment operator, millisecond version.
- */
- TimeVal & operator-=(milliseconds_t);
- /** Equality operator.
- */
- bool operator==(const timeval &) const;
- /** Less than relational operator.
- */
- bool operator< (const timeval &) const;
- /** Clear the timeval struct to 0.
- */
- void clear();
- /** Copy the given timeval struct into this.
- */
- void copy(const timeval &);
- /** The purpose of normalize is to ensure that the tv_usec field
- * is in [0,100000).
- */
- void normalize();
- /** Write a TimeVal to an ostream.
- */
- ostream & writeTo(ostream &) const;
- };
- } // namespace Time
- } // namespace Vocal
- #endif // !defined(TIME_VAL_DOT_H)