source: vscpl/src/hu/varadiistvan/scpl/_posix/CondVar.cc

Last change on this file was 5:55892b4e7748, checked in by István Váradi <ivaradi@…>, 12 years ago

Imported the conditional variable implementation from xplcommon

File size: 2.4 KB
Line 
1// Copyright (c) 2013 by István Váradi
2
3// This file is part of VSCPL, a simple cross-platform utility library
4
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are met:
7
8// 1. Redistributions of source code must retain the above copyright notice, this
9// list of conditions and the following disclaimer.
10// 2. Redistributions in binary form must reproduce the above copyright notice,
11// this list of conditions and the following disclaimer in the documentation
12// and/or other materials provided with the distribution.
13
14// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24
25// The views and conclusions contained in the software and documentation are those
26// of the authors and should not be interpreted as representing official policies,
27// either expressed or implied, of the FreeBSD Project.
28
29//------------------------------------------------------------------------------
30
31#include "CondVar.h"
32
33#include <sys/time.h>
34
35//------------------------------------------------------------------------------
36
37using hu::varadiistvan::scpl::CondVar;
38
39//------------------------------------------------------------------------------
40
41void CondVar::getAbsTime(struct ::timespec& abstime, int timeout)
42{
43 struct timeval tv;
44 gettimeofday(&tv, 0);
45
46 abstime.tv_sec = tv.tv_sec + timeout / 1000;
47 abstime.tv_nsec = (tv.tv_usec + (timeout%1000) * 1000) * 1000;
48 if (abstime.tv_nsec>=1000000000) {
49 ++abstime.tv_sec;
50 abstime.tv_nsec -= 1000000000;
51 }
52}
53
54//------------------------------------------------------------------------------
55
56// Local Variables:
57// mode: C++
58// c-basic-offset: 4
59// indent-tabs-mode: nil
60// End:
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