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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2009
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files (the
15 * "Software"), to deal in the Software without restriction, including
16 * without limitation the rights to use, copy, modify, merge, publish,
17 * distribute, sublicense, and/or sell copies of the Software, and to
18 * permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34namespace Gecode { namespace Support {
35
36 /*
37 * Mutex
38 */
39 forceinline
40 Mutex::Mutex(void) {
41 InitializeCriticalSection(&w_cs);
42 }
43 forceinline void
44 Mutex::acquire(void) {
45 EnterCriticalSection(&w_cs);
46 }
47 forceinline bool
48 Mutex::tryacquire(void) {
49 return TryEnterCriticalSection(&w_cs) != 0;
50 }
51 forceinline void
52 Mutex::release(void) {
53 LeaveCriticalSection(&w_cs);
54 }
55 forceinline
56 Mutex::~Mutex(void) {
57 DeleteCriticalSection(&w_cs);
58 }
59
60
61 /*
62 * Event
63 */
64 forceinline
65 Event::Event(void)
66 : w_h(CreateEvent(nullptr, FALSE, FALSE, nullptr)) {
67 if (w_h == nullptr)
68 throw OperatingSystemError("Event::Event[Windows::CreateEvent]");
69 }
70 forceinline void
71 Event::signal(void) {
72 if (SetEvent(w_h) == 0)
73 throw OperatingSystemError("Event::signal[Windows::SetEvent]");
74 }
75 forceinline void
76 Event::wait(void) {
77 if (WaitForSingleObject(w_h,INFINITE) != 0)
78 throw OperatingSystemError("Event::wait[Windows::WaitForSingleObject]");
79 }
80
81 forceinline
82 Event::~Event(void) {
83 if (CloseHandle(w_h) == 0) {
84 std::cerr << "Operating system error: "
85 << "Event::~Event[Windows::CloseHandle]";
86 std::terminate();
87 }
88 }
89
90
91 /*
92 * Thread
93 */
94 forceinline void
95 Thread::sleep(unsigned int ms) {
96 Sleep(static_cast<DWORD>(ms));
97 }
98
99 forceinline unsigned int
100 Thread::npu(void) {
101 SYSTEM_INFO si;
102 GetSystemInfo(&si);
103 return static_cast<unsigned int>(si.dwNumberOfProcessors);
104 }
105
106}}
107
108// STATISTICS: support-any