1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/**
* @file lldate.cpp
* @author Phoenix
* @date 2006-02-05
* @brief Implementation of the date class
*
* Copyright (c) 2006-2007, Linden Research, Inc.
*
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
*/
#include "linden_common.h"
#include "lldate.h"
#include "apr-1/apr_time.h"
#include <iomanip>
#include <sstream>
static const F64 DATE_EPOCH = 0.0;
static const F64 LL_APR_USEC_PER_SEC = 1000000.0;
// should be APR_USEC_PER_SEC, but that relies on INT64_C which
// isn't defined in glib under our build set up for some reason
LLDate::LLDate() : mSecondsSinceEpoch(DATE_EPOCH)
{
}
LLDate::LLDate(const LLDate& date) :
mSecondsSinceEpoch(date.mSecondsSinceEpoch)
{
}
LLDate::LLDate(F64 seconds_since_epoch) :
mSecondsSinceEpoch(seconds_since_epoch)
{
}
LLDate::LLDate(const std::string& iso8601_date)
{
if(!fromString(iso8601_date))
{
mSecondsSinceEpoch = DATE_EPOCH;
}
}
std::string LLDate::asString() const
{
std::ostringstream stream;
toStream(stream);
return stream.str();
}
void LLDate::toStream(std::ostream& s) const
{
apr_time_t time = (apr_time_t)(mSecondsSinceEpoch * LL_APR_USEC_PER_SEC);
apr_time_exp_t exp_time;
if (apr_time_exp_gmt(&exp_time, time) != APR_SUCCESS)
{
s << "1970-01-01T00:00:00Z";
return;
}
s << std::dec << std::setfill('0');
#if( LL_WINDOWS || __GNUC__ > 2)
s << std::right;
#else
s.setf(ios::right);
#endif
s << std::setw(4) << (exp_time.tm_year + 1900)
<< '-' << std::setw(2) << (exp_time.tm_mon + 1)
<< '-' << std::setw(2) << (exp_time.tm_mday)
<< 'T' << std::setw(2) << (exp_time.tm_hour)
<< ':' << std::setw(2) << (exp_time.tm_min)
<< ':' << std::setw(2) << (exp_time.tm_sec);
if (exp_time.tm_usec > 0)
{
s << '.' << std::setw(2)
<< (int)(exp_time.tm_usec / (LL_APR_USEC_PER_SEC / 100));
}
s << 'Z';
}
bool LLDate::fromString(const std::string& iso8601_date)
{
std::istringstream stream(iso8601_date);
return fromStream(stream);
}
bool LLDate::fromStream(std::istream& s)
{
struct apr_time_exp_t exp_time;
apr_int32_t tm_part;
int c;
s >> tm_part;
exp_time.tm_year = tm_part - 1900;
c = s.get(); // skip the hypen
if (c != '-') { return false; }
s >> tm_part;
exp_time.tm_mon = tm_part - 1;
c = s.get(); // skip the hypen
if (c != '-') { return false; }
s >> tm_part;
exp_time.tm_mday = tm_part;
c = s.get(); // skip the T
if (c != 'T') { return false; }
s >> tm_part;
exp_time.tm_hour = tm_part;
c = s.get(); // skip the :
if (c != ':') { return false; }
s >> tm_part;
exp_time.tm_min = tm_part;
c = s.get(); // skip the :
if (c != ':') { return false; }
s >> tm_part;
exp_time.tm_sec = tm_part;
// zero out the unused fields
exp_time.tm_usec = 0;
exp_time.tm_wday = 0;
exp_time.tm_yday = 0;
exp_time.tm_isdst = 0;
exp_time.tm_gmtoff = 0;
// generate a time_t from that
apr_time_t time;
if (apr_time_exp_gmt_get(&time, &exp_time) != APR_SUCCESS)
{
return false;
}
F64 seconds_since_epoch = time / LL_APR_USEC_PER_SEC;
// check for fractional
c = s.peek();
if(c == '.')
{
F64 fractional = 0.0;
s >> fractional;
seconds_since_epoch += fractional;
}
s.get(); // skip the Z
if (c != 'Z') { return false; }
mSecondsSinceEpoch = seconds_since_epoch;
return true;
}
F64 LLDate::secondsSinceEpoch() const
{
return mSecondsSinceEpoch;
}
void LLDate::secondsSinceEpoch(F64 seconds)
{
mSecondsSinceEpoch = seconds;
}
std::ostream& operator<<(std::ostream& s, const LLDate& date)
{
date.toStream(s);
return s;
}
std::istream& operator>>(std::istream& s, LLDate& date)
{
date.fromStream(s);
return s;
}
|
