source: vscpl/src/hu/varadiistvan/scpl/io/_win32/Waiter.cc

Last change on this file was 6:53519b47b166, checked in by István Váradi <ivaradi@…>, 12 years ago

Imported some further stuff from the IO code

File size: 2.8 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 "Waiter.h"
32
33#include "Event.h"
34
35//------------------------------------------------------------------------------
36
37using hu::varadiistvan::scpl::io::Waiter;
38
39//------------------------------------------------------------------------------
40
41Waiter::~Waiter()
42{
43 while(!events.empty()) {
44 Event* event = *events.begin();
45 event->removeFromWaiter();
46 }
47}
48
49//------------------------------------------------------------------------------
50
51bool Waiter::wait(int timeout)
52{
53 if (numEvents==0) return true;
54
55 HANDLE handles[numEvents];
56 size_t j = 0;
57 for(events_t::const_iterator i = events.begin();
58 i!=events.end(); ++i, ++j)
59 {
60 handles[j] = (*i)->getHandle();
61 }
62
63 DWORD result = WaitForMultipleObjects(numEvents, handles, false,
64 (timeout<0) ? INFINITE : timeout);
65 if (result==WAIT_FAILED) {
66 setErrorCode(GetLastError());
67 return false;
68 } else {
69 return result!=WAIT_TIMEOUT;
70 }
71}
72
73//------------------------------------------------------------------------------
74
75// Local Variables:
76// mode: C++
77// c-basic-offset: 4
78// indent-tabs-mode: nil
79// End:
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