/src/libreoffice/tools/source/datetime/systemdatetime.cxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * This file incorporates work covered by the following license notice: |
10 | | * |
11 | | * Licensed to the Apache Software Foundation (ASF) under one or more |
12 | | * contributor license agreements. See the NOTICE file distributed |
13 | | * with this work for additional information regarding copyright |
14 | | * ownership. The ASF licenses this file to you under the Apache |
15 | | * License, Version 2.0 (the "License"); you may not use this file |
16 | | * except in compliance with the License. You may obtain a copy of |
17 | | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
18 | | */ |
19 | | |
20 | | #include <sal/config.h> |
21 | | |
22 | | #include <chrono> |
23 | | #include <time.h> |
24 | | |
25 | | #include <systemdatetime.hxx> |
26 | | |
27 | | namespace |
28 | | { |
29 | | constexpr sal_Int32 ConvertYMDToInt(sal_Int32 nYear, sal_Int32 nMonth, sal_Int32 nDay) |
30 | 5.55M | { |
31 | 5.55M | return (nYear * 10000) + (nMonth * 100) + nDay; |
32 | 5.55M | } |
33 | | |
34 | | constexpr sal_Int64 ConvertHMSnToInt(sal_Int64 nHour, sal_Int64 nMin, sal_Int64 nSec, |
35 | | sal_Int64 nNanoSec) |
36 | 5.38M | { |
37 | 5.38M | return (nHour * HOUR_MASK) + (nMin * MIN_MASK) + (nSec * SEC_MASK) + nNanoSec; |
38 | 5.38M | } |
39 | | } |
40 | | |
41 | | bool GetSystemDateTime(sal_Int32* pDate, sal_Int64* pTime) |
42 | 5.55M | { |
43 | 5.55M | auto tp = std::chrono::system_clock::now(); |
44 | 5.55M | const time_t nTmpTime = std::chrono::system_clock::to_time_t(tp); |
45 | 5.55M | struct tm aTime; |
46 | | #if defined(_WIN32) |
47 | | bool ok = localtime_s(&aTime, &nTmpTime) == 0; |
48 | | #else |
49 | 5.55M | bool ok = localtime_r(&nTmpTime, &aTime) != nullptr; |
50 | 5.55M | #endif |
51 | 5.55M | if (ok) |
52 | 5.55M | { |
53 | 5.55M | if (pDate) |
54 | 5.55M | *pDate = ConvertYMDToInt(static_cast<sal_Int32>(aTime.tm_year + 1900), |
55 | 5.55M | static_cast<sal_Int32>(aTime.tm_mon + 1), |
56 | 5.55M | static_cast<sal_Int32>(aTime.tm_mday)); |
57 | 5.55M | if (pTime) |
58 | 5.38M | { |
59 | 5.38M | auto hms = std::chrono::hh_mm_ss(std::chrono::floor<std::chrono::nanoseconds>( |
60 | 5.38M | tp - std::chrono::floor<std::chrono::days>(tp))); |
61 | 5.38M | auto ns = hms.subseconds().count(); |
62 | 5.38M | *pTime = ConvertHMSnToInt(aTime.tm_hour, aTime.tm_min, aTime.tm_sec, ns); |
63 | 5.38M | } |
64 | 5.55M | return true; |
65 | 5.55M | } |
66 | | |
67 | 0 | return false; |
68 | 5.55M | } |
69 | | |
70 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |