Drizzled Public API Documentation

times.cc
1 /* Drizzle
2  * Copyright (C) 2011 Olaf van der Spek
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #include <config.h>
19 #include <drizzled/session/times.h>
20 #include <drizzled/session.h>
21 #include <drizzled/statistics_variables.h>
22 
23 namespace drizzled {
24 namespace session {
25 
26 type::epoch_t Times::getCurrentTimestamp(bool actual) const
27 {
28  return ((actual ? boost::posix_time::microsec_clock::universal_time() : _end_timer) - _epoch).total_microseconds();
29 }
30 
31 type::epoch_t Times::getCurrentTimestampEpoch() const
32 {
33  return ((_user_time.is_not_a_date_time() ? _start_timer : _user_time) - _epoch).total_seconds();
34 }
35 
36 type::epoch_t Times::getCurrentTimestampEpoch(type::usec_t &fraction_arg) const
37 {
38  if (not _user_time.is_not_a_date_time())
39  {
40  fraction_arg= 0;
41  return (_user_time - _epoch).total_seconds();
42  }
43 
44  fraction_arg= _start_timer.time_of_day().fractional_seconds() % 1000000;
45  return (_start_timer - _epoch).total_seconds();
46 }
47 
48 uint64_t Times::getElapsedTime() const
49 {
50  return (_end_timer - _start_timer).total_microseconds();
51 }
52 
53 void Times::resetUserTime()
54 {
55  _user_time= boost::posix_time::not_a_date_time;
56 }
57 
58 boost::posix_time::ptime Times::start_timer() const
59 {
60  return _start_timer;
61 }
62 
63 boost::posix_time::ptime Times::epoch() const
64 {
65  return _epoch;
66 }
67 
68 void Times::set_time()
69 {
70  _end_timer= _start_timer= boost::posix_time::microsec_clock::universal_time();
71  utime_after_lock= (_start_timer - _epoch).total_microseconds();
72 }
73 
74 void Times::set_time_after_lock()
75 {
76  utime_after_lock= (boost::posix_time::microsec_clock::universal_time() - _epoch).total_microseconds();
77 }
78 
79 type::epoch_t Times::query_start()
80 {
81  return getCurrentTimestampEpoch();
82 }
83 
84 void Times::set_time(time_t t) // This is done by a sys_var, as long as user_time is set, we will use that for all references to time
85 {
86  _user_time= boost::posix_time::from_time_t(t);
87 }
88 
89 uint64_t Times::getConnectMicroseconds() const
90 {
91  return (_connect_time - _epoch).total_microseconds();
92 }
93 
94 uint64_t Times::getConnectSeconds() const
95 {
96  return (_connect_time - _epoch).total_seconds();
97 }
98 
99 void Times::set_end_timer(Session& session)
100 {
101  _end_timer= boost::posix_time::microsec_clock::universal_time();
102  session.status_var.execution_time_nsec+= (_end_timer - _start_timer).total_microseconds();
103 }
104 
105 }
106 }