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: Nathan Binkert
29 */
30
31#include "base/time.hh"
32
33#include <cstdlib>
34#include <ctime>
35#include <iostream>
36#include <sstream>
37
| 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: Nathan Binkert
29 */
30
31#include "base/time.hh"
32
33#include <cstdlib>
34#include <ctime>
35#include <iostream>
36#include <sstream>
37
|
39#include "config/use_posix_clock.hh"
40#include "sim/core.hh"
41#include "sim/serialize.hh"
42
43using namespace std;
44
45void
46Time::_set(bool monotonic)
47{
48#if USE_POSIX_CLOCK
49 ::clock_gettime(monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME, &_time);
50#else
51 timeval tv;
52 ::gettimeofday(&tv, NULL);
53 operator=(tv);
54#endif
55}
56
57void
58Time::setTick(Tick ticks)
59{
60 uint64_t nsecs = ticks / SimClock::Int::ns;
61 set(nsecs / NSEC_PER_SEC, nsecs % NSEC_PER_SEC);
62}
63
64Tick
65Time::getTick() const
66{
67 return (nsec() + sec() * NSEC_PER_SEC) * SimClock::Int::ns;
68}
69
70string
71Time::date(const string &format) const
72{
73 time_t sec = this->sec();
74 char buf[256];
75
76 if (format.empty()) {
77#ifdef __SUNPRO_CC
78 ctime_r(&sec, buf, sizeof(buf));
79#else
80 ctime_r(&sec, buf);
81#endif
82 buf[24] = '\0';
83 return buf;
84 }
85
86 struct tm *tm = localtime(&sec);
87 strftime(buf, sizeof(buf), format.c_str(), tm);
88 return buf;
89}
90
91string
92Time::time() const
93{
94 double time = double(*this);
95 double secs = fmod(time, 60.0);
96 double all_mins = floor(time / 60.0);
97 double mins = fmod(all_mins, 60.0);
98 double hours = floor(all_mins / 60.0);
99
100 stringstream str;
101
102 if (hours > 0.0) {
103 if (hours < 10.0)
104 str << '0';
105 str << hours << ':';
106 }
107
108 if (mins > 0.0) {
109 if (mins < 10.0)
110 str << '0';
111 str << mins << ':';
112 }
113
114 if (secs < 10.0 && !str.str().empty())
115 str << '0';
116 str << secs;
117
118 return str.str();
119}
120
121void
122Time::serialize(const std::string &base, CheckpointOut &cp) const
123{
124 paramOut(cp, base + ".sec", sec());
125 paramOut(cp, base + ".nsec", nsec());
126}
127
128void
129Time::unserialize(const std::string &base, CheckpointIn &cp)
130{
131 time_t secs;
132 time_t nsecs;
133 paramIn(cp, base + ".sec", secs);
134 paramIn(cp, base + ".nsec", nsecs);
135 sec(secs);
136 nsec(nsecs);
137}
138
139void
140sleep(const Time &time)
141{
142 timespec ts = time;
143
144#if USE_POSIX_CLOCK
145 clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
146#else
147 nanosleep(&ts, NULL);
148#endif
149}
150
151time_t
152mkutctime(struct tm *time)
153{
154 // get the current timezone
155 char *tz = getenv("TZ");
156
157 // copy the string as the pointer gets invalidated when updating
158 // the environment
159 if (tz) {
160 tz = strdup(tz);
161 if (!tz) {
162 fatal("Failed to reserve memory for UTC time conversion\n");
163 }
164 }
165
166 // change to UTC and get the time
167 setenv("TZ", "", 1);
168 tzset();
169 time_t ret = mktime(time);
170
171 // restore the timezone again
172 if (tz) {
173 setenv("TZ", tz, 1);
174 free(tz);
175 } else {
176 unsetenv("TZ");
177 }
178 tzset();
179
180 return ret;
181}
182
| 39#include "config/use_posix_clock.hh"
40#include "sim/core.hh"
41#include "sim/serialize.hh"
42
43using namespace std;
44
45void
46Time::_set(bool monotonic)
47{
48#if USE_POSIX_CLOCK
49 ::clock_gettime(monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME, &_time);
50#else
51 timeval tv;
52 ::gettimeofday(&tv, NULL);
53 operator=(tv);
54#endif
55}
56
57void
58Time::setTick(Tick ticks)
59{
60 uint64_t nsecs = ticks / SimClock::Int::ns;
61 set(nsecs / NSEC_PER_SEC, nsecs % NSEC_PER_SEC);
62}
63
64Tick
65Time::getTick() const
66{
67 return (nsec() + sec() * NSEC_PER_SEC) * SimClock::Int::ns;
68}
69
70string
71Time::date(const string &format) const
72{
73 time_t sec = this->sec();
74 char buf[256];
75
76 if (format.empty()) {
77#ifdef __SUNPRO_CC
78 ctime_r(&sec, buf, sizeof(buf));
79#else
80 ctime_r(&sec, buf);
81#endif
82 buf[24] = '\0';
83 return buf;
84 }
85
86 struct tm *tm = localtime(&sec);
87 strftime(buf, sizeof(buf), format.c_str(), tm);
88 return buf;
89}
90
91string
92Time::time() const
93{
94 double time = double(*this);
95 double secs = fmod(time, 60.0);
96 double all_mins = floor(time / 60.0);
97 double mins = fmod(all_mins, 60.0);
98 double hours = floor(all_mins / 60.0);
99
100 stringstream str;
101
102 if (hours > 0.0) {
103 if (hours < 10.0)
104 str << '0';
105 str << hours << ':';
106 }
107
108 if (mins > 0.0) {
109 if (mins < 10.0)
110 str << '0';
111 str << mins << ':';
112 }
113
114 if (secs < 10.0 && !str.str().empty())
115 str << '0';
116 str << secs;
117
118 return str.str();
119}
120
121void
122Time::serialize(const std::string &base, CheckpointOut &cp) const
123{
124 paramOut(cp, base + ".sec", sec());
125 paramOut(cp, base + ".nsec", nsec());
126}
127
128void
129Time::unserialize(const std::string &base, CheckpointIn &cp)
130{
131 time_t secs;
132 time_t nsecs;
133 paramIn(cp, base + ".sec", secs);
134 paramIn(cp, base + ".nsec", nsecs);
135 sec(secs);
136 nsec(nsecs);
137}
138
139void
140sleep(const Time &time)
141{
142 timespec ts = time;
143
144#if USE_POSIX_CLOCK
145 clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
146#else
147 nanosleep(&ts, NULL);
148#endif
149}
150
151time_t
152mkutctime(struct tm *time)
153{
154 // get the current timezone
155 char *tz = getenv("TZ");
156
157 // copy the string as the pointer gets invalidated when updating
158 // the environment
159 if (tz) {
160 tz = strdup(tz);
161 if (!tz) {
162 fatal("Failed to reserve memory for UTC time conversion\n");
163 }
164 }
165
166 // change to UTC and get the time
167 setenv("TZ", "", 1);
168 tzset();
169 time_t ret = mktime(time);
170
171 // restore the timezone again
172 if (tz) {
173 setenv("TZ", tz, 1);
174 free(tz);
175 } else {
176 unsetenv("TZ");
177 }
178 tzset();
179
180 return ret;
181}
182
|