1 /*
2  * Copyright (c) 2011-2021, The DART development contributors
3  * All rights reserved.
4  *
5  * The list of contributors can be found at:
6  *   https://github.com/dartsim/dart/blob/master/LICENSE
7  *
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10  *   without modification, are permitted provided that the following
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14  *   * Redistributions in binary form must reproduce the above
15  *     copyright notice, this list of conditions and the following
16  *     disclaimer in the documentation and/or other materials provided
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31  */
32 
33 #include <chrono>
34 #include <future>
35 
36 #include <gtest/gtest.h>
37 
38 #include "dart/simulation/World.hpp"
39 
40 #include "TestHelpers.hpp"
41 
42 using namespace dart;
43 using namespace dynamics;
44 
45 //==============================================================================
createAndDestroyFrames(int threadNum)46 void createAndDestroyFrames(int threadNum)
47 {
48   for (std::size_t i = 0; i < 100; ++i)
49   {
50     EXPECT_EQ(Frame::World()->getNumChildEntities(), 0);
51     EXPECT_EQ(Frame::World()->getNumChildFrames(), 0);
52 
53     SimpleFrame someFrame(
54         Frame::World(),
55         "Frame_" + std::to_string(threadNum) + std::to_string(i));
56 
57     EXPECT_EQ(Frame::World()->getNumChildEntities(), 0);
58     EXPECT_EQ(Frame::World()->getNumChildFrames(), 0);
59   }
60 }
61 
62 //==============================================================================
TEST(Concurrency,FrameDeletion)63 TEST(Concurrency, FrameDeletion)
64 {
65   // Regression test for issue #576
66   std::vector<std::future<void>> futures;
67   for (std::size_t i = 0; i < 10; ++i)
68     futures.push_back(
69         std::async(std::launch::async, &createAndDestroyFrames, i));
70 
71   for (std::size_t i = 0; i < futures.size(); ++i)
72   {
73     EXPECT_EQ(Frame::World()->getNumChildEntities(), 0);
74     EXPECT_EQ(Frame::World()->getNumChildFrames(), 0);
75     futures[i].get();
76   }
77 
78   EXPECT_EQ(Frame::World()->getNumChildEntities(), 0);
79   EXPECT_EQ(Frame::World()->getNumChildFrames(), 0);
80 }
81