/[resiprocate]/main/resip/dum/RefCountedDestroyer.hxx
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Contents of /main/resip/dum/RefCountedDestroyer.hxx

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Revision 5948 - (show annotations) (download)
Fri Feb 17 15:30:16 2006 UTC (13 years, 9 months ago) by dworley
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File size: 3737 byte(s)
Setting more svn: properties, and adding EOLs to the ends of files
that need it.

1 #if !defined(RESIP_REFCOUNTEDDESTROYER_HXX)
2 #define RESIP_REFCOUNTEDDESTROYER_HXX
3
4 namespace resip
5 {
6
7 //designed to be used by composition, does not destroy itself.
8 template<class T>
9 class RefCountedDestroyer
10 {
11 public:
12 class Guard
13 {
14 public:
15 void destroy()
16 {
17 mRefCountedDestroyer.mDestroying = true;
18 }
19
20 bool destroyed()
21 {
22 return mRefCountedDestroyer.mDestroying;
23 }
24
25 Guard(RefCountedDestroyer& rcd)
26 : mRefCountedDestroyer(rcd)
27 {
28 mRefCountedDestroyer.mCount++;
29 }
30
31 ~Guard()
32 {
33 mRefCountedDestroyer.mCount--;
34 if (mRefCountedDestroyer.mDestroying && mRefCountedDestroyer.mCount == 0)
35 {
36 delete mRefCountedDestroyer.mTarget;
37 }
38 }
39 private:
40 RefCountedDestroyer& mRefCountedDestroyer;
41 };
42
43 RefCountedDestroyer(T* target) :
44 mTarget(target),
45 mCount(0),
46 mDestroying(false)
47 {
48 }
49 private:
50 friend class Guard;
51 T* mTarget;
52 int mCount;
53 bool mDestroying;
54 };
55
56 }
57
58 #endif
59
60 /* ====================================================================
61 * The Vovida Software License, Version 1.0
62 *
63 * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
64 *
65 * Redistribution and use in source and binary forms, with or without
66 * modification, are permitted provided that the following conditions
67 * are met:
68 *
69 * 1. Redistributions of source code must retain the above copyright
70 * notice, this list of conditions and the following disclaimer.
71 *
72 * 2. Redistributions in binary form must reproduce the above copyright
73 * notice, this list of conditions and the following disclaimer in
74 * the documentation and/or other materials provided with the
75 * distribution.
76 *
77 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
78 * and "Vovida Open Communication Application Library (VOCAL)" must
79 * not be used to endorse or promote products derived from this
80 * software without prior written permission. For written
81 * permission, please contact vocal@vovida.org.
82 *
83 * 4. Products derived from this software may not be called "VOCAL", nor
84 * may "VOCAL" appear in their name, without prior written
85 * permission of Vovida Networks, Inc.
86 *
87 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
88 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
89 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
90 * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
91 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
92 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
93 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
94 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
95 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
96 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
97 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
98 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
99 * DAMAGE.
100 *
101 * ====================================================================
102 *
103 * This software consists of voluntary contributions made by Vovida
104 * Networks, Inc. and many individuals on behalf of Vovida Networks,
105 * Inc. For more information on Vovida Networks, Inc., please see
106 * <http://www.vovida.org/>.
107 *
108 */

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