Generated on Mon Sep 17 2012 22:20:46 for Gecode by doxygen 1.8.1.1
thread.hpp
Go to the documentation of this file.
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  * Last modified:
10  * $Date: 2009-10-15 20:39:29 +1100 (Thu, 15 Oct 2009) $ by $Author: schulte $
11  * $Revision: 9919 $
12  *
13  * This file is part of Gecode, the generic constraint
14  * development environment:
15  * http://www.gecode.org
16  *
17  * Permission is hereby granted, free of charge, to any person obtaining
18  * a copy of this software and associated documentation files (the
19  * "Software"), to deal in the Software without restriction, including
20  * without limitation the rights to use, copy, modify, merge, publish,
21  * distribute, sublicense, and/or sell copies of the Software, and to
22  * permit persons to whom the Software is furnished to do so, subject to
23  * the following conditions:
24  *
25  * The above copyright notice and this permission notice shall be
26  * included in all copies or substantial portions of the Software.
27  *
28  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
32  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
33  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
34  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35  *
36  */
37 
38 namespace Gecode { namespace Support {
39 
40  /*
41  * Runnable objects
42  */
43  forceinline void
44  Runnable::operator delete(void* p) {
45  heap.rfree(p);
46  }
47  forceinline void*
48  Runnable::operator new(size_t s) {
49  return heap.ralloc(s);
50  }
51 
52 
53  /*
54  * Mutexes
55  *
56  */
57  forceinline void*
58  Mutex::operator new(size_t s) {
59  return Gecode::heap.ralloc(s);
60  }
61 
62  forceinline void
63  Mutex::operator delete(void* p) {
65  }
66 
67 
68  /*
69  * Locks
70  */
72  Lock::Lock(Mutex& m0) : m(m0) {
73  m.acquire();
74  }
76  Lock::~Lock(void) {
77  m.release();
78  }
79 
80 
81  /*
82  * Threads
83  */
84  inline void
86  m.acquire();
87  r = r0;
88  m.release();
89  e.signal();
90  }
91  inline void
93  m.acquire();
94  if (idle != NULL) {
95  idle->run(r);
96  idle = idle->n;
97  m.release();
98  } else {
99  m.release();
100  (void) new Run(r);
101  }
102  }
103  forceinline void
104  Thread::Run::operator delete(void* p) {
105  heap.rfree(p);
106  }
107  forceinline void*
108  Thread::Run::operator new(size_t s) {
109  return heap.ralloc(s);
110  }
111 
112 }}
113 
114 // STATISTICS: support-any