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gdatetime_unix.cpp
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1 //
2 // Copyright (C) 2001-2018 Graeme Walker <graeme_walker@users.sourceforge.net>
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 3 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 // gdatetime_unix.cpp
19 //
20
21 #include "gdef.h"
22 #include "gdatetime.h"
23 #include <stdexcept>
24 #include <sys/time.h> // gettimeofday()
25
26 G::EpochTime G::DateTime::now()
27 {
28 struct timeval tv ;
29 int rc = ::gettimeofday( &tv , nullptr ) ;
30 if( rc != 0 )
31 throw std::runtime_error( "gettimeofday failed" ) ;
32 return EpochTime( tv.tv_sec , tv.tv_usec ) ;
33 }
34
35 std::tm * G::DateTime::gmtime_imp( const std::time_t * t , std::tm * p )
36 {
37 return ::gmtime_r(t,p) ; // see gdef.h
38 }
39
40 std::tm * G::DateTime::localtime_imp( const std::time_t * t , std::tm * p )
41 {
42 return ::localtime_r(t,p) ; // see gdef.h
43 }
44
45 /// \file gdatetime_unix.cpp
G::EpochTime
A subsecond-resolution timestamp based on a time_t.
Definition: gdatetime.h:39
G::DateTime::now
static EpochTime now()
Returns the current epoch time.
Definition: gdatetime_unix.cpp:26
gdatetime.h