time.hh revision 3483:edede8473667 
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * 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: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Steve Reinhardt
29 *          Nathan Binkert
30 */
31
32#ifndef __SIM_TIME_HH__
33#define __SIM_TIME_HH__
34
35#include <sys/time.h>
36
37#include <iosfwd>
38#include <string>
39
40struct _timeval;
41
42class Time
43{
44  protected:
45    mutable _timeval *time;
46
47  public:
48    explicit Time(bool set_now = false);
49    Time(const timeval &val);
50    Time(const Time &val);
51    ~Time();
52
53    void set();
54    const timeval &get() const;
55    void set(const timeval &val);
56
57    double operator()() const;
58    std::string date(std::string format = "") const;
59
60  public:
61    static const Time start;
62};
63
64Time operator-(const Time &l, const Time &r);
65
66std::ostream &operator<<(std::ostream &out, const Time &time);
67
68
69/*
70 * Copyright (c) 1982, 1986, 1993
71 *	The Regents of the University of California.  All rights reserved.
72 *
73 * Redistribution and use in source and binary forms, with or without
74 * modification, are permitted provided that the following conditions
75 * are met:
76 * 1. Redistributions of source code must retain the above copyright
77 *    notice, this list of conditions and the following disclaimer.
78 * 2. Redistributions in binary form must reproduce the above copyright
79 *    notice, this list of conditions and the following disclaimer in the
80 *    documentation and/or other materials provided with the distribution.
81 * 3. Neither the name of the University nor the names of its contributors
82 *    may be used to endorse or promote products derived from this software
83 *    without specific prior written permission.
84 *
85 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
86 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
87 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
88 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
89 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
90 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
91 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
92 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
93 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
94 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
95 * SUCH DAMAGE.
96 *
97 *	@(#)time.h	8.2 (Berkeley) 7/10/94
98 */
99
100#if defined(__sun__)
101#define timersub(tvp, uvp, vvp)                                         \
102    do {                                                            \
103            (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
104            (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
105            if ((vvp)->tv_usec < 0) { \
106                (vvp)->tv_sec--; \
107                (vvp)->tv_usec += 1000000; \
108            } \
109    } while (0)
110#endif
111
112#endif // __SIM_TIME_HH__
113