/src/opencv/3rdparty/openexr/IlmThread/IlmThread.cpp
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1 | | /////////////////////////////////////////////////////////////////////////// |
2 | | // |
3 | | // Copyright (c) 2005-2012, Industrial Light & Magic, a division of Lucas |
4 | | // Digital Ltd. LLC |
5 | | // |
6 | | // All rights reserved. |
7 | | // |
8 | | // Redistribution and use in source and binary forms, with or without |
9 | | // modification, are permitted provided that the following conditions are |
10 | | // met: |
11 | | // * Redistributions of source code must retain the above copyright |
12 | | // notice, this list of conditions and the following disclaimer. |
13 | | // * Redistributions in binary form must reproduce the above |
14 | | // copyright notice, this list of conditions and the following disclaimer |
15 | | // in the documentation and/or other materials provided with the |
16 | | // distribution. |
17 | | // * Neither the name of Industrial Light & Magic nor the names of |
18 | | // its contributors may be used to endorse or promote products derived |
19 | | // from this software without specific prior written permission. |
20 | | // |
21 | | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
22 | | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
23 | | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
24 | | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
25 | | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
26 | | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
27 | | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
28 | | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
29 | | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
30 | | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
31 | | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
32 | | // |
33 | | /////////////////////////////////////////////////////////////////////////// |
34 | | |
35 | | //----------------------------------------------------------------------------- |
36 | | // |
37 | | // class Thread -- this file contains two implementations of thread: |
38 | | // - dummy implementation for platforms that do not support threading |
39 | | // when OPENEXR_FORCE_CXX03 is on |
40 | | // - c++11 and newer version |
41 | | // |
42 | | //----------------------------------------------------------------------------- |
43 | | |
44 | | #include "IlmBaseConfig.h" |
45 | | #include "IlmThread.h" |
46 | | #include "Iex.h" |
47 | | |
48 | | ILMTHREAD_INTERNAL_NAMESPACE_SOURCE_ENTER |
49 | | |
50 | | #ifndef ILMBASE_FORCE_CXX03 |
51 | | //----------------------------------------------------------------------------- |
52 | | // C++11 and newer implementation |
53 | | //----------------------------------------------------------------------------- |
54 | | bool |
55 | | supportsThreads () |
56 | 0 | { |
57 | 0 | return true; |
58 | 0 | } |
59 | | |
60 | | Thread::Thread () |
61 | 0 | { |
62 | | // empty |
63 | 0 | } |
64 | | |
65 | | |
66 | | Thread::~Thread () |
67 | 0 | { |
68 | | // hopefully the thread has basically exited and we are just |
69 | | // cleaning up, because run is a virtual function, so the v-table |
70 | | // has already been partly destroyed... |
71 | 0 | if ( _thread.joinable () ) |
72 | 0 | _thread.join (); |
73 | 0 | } |
74 | | |
75 | | |
76 | | void |
77 | | Thread::start () |
78 | 0 | { |
79 | 0 | _thread = std::thread (&Thread::run, this); |
80 | 0 | } |
81 | | |
82 | | #else |
83 | | # if !defined (_WIN32) &&!(_WIN64) && !(HAVE_PTHREAD) |
84 | | //----------------------------------------------------------------------------- |
85 | | // OPENEXR_FORCE_CXX03 with no windows / pthread support |
86 | | //----------------------------------------------------------------------------- |
87 | | bool |
88 | | supportsThreads () |
89 | | { |
90 | | return false; |
91 | | } |
92 | | |
93 | | |
94 | | Thread::Thread () |
95 | | { |
96 | | throw IEX_NAMESPACE::NoImplExc ("Threads not supported on this platform."); |
97 | | } |
98 | | |
99 | | |
100 | | Thread::~Thread () |
101 | | { |
102 | | throw IEX_NAMESPACE::NoImplExc ("Threads not supported on this platform."); |
103 | | } |
104 | | |
105 | | |
106 | | void |
107 | | Thread::start () |
108 | | { |
109 | | throw IEX_NAMESPACE::NoImplExc ("Threads not supported on this platform."); |
110 | | } |
111 | | # endif |
112 | | #endif |
113 | | |
114 | | |
115 | | ILMTHREAD_INTERNAL_NAMESPACE_SOURCE_EXIT |
116 | | |