1 /*
2     Copyright (c) 2005-2022 Intel Corporation
3 
4     Licensed under the Apache License, Version 2.0 (the "License");
5     you may not use this file except in compliance with the License.
6     You may obtain a copy of the License at
7 
8         http://www.apache.org/licenses/LICENSE-2.0
9 
10     Unless required by applicable law or agreed to in writing, software
11     distributed under the License is distributed on an "AS IS" BASIS,
12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13     See the License for the specific language governing permissions and
14     limitations under the License.
15 */
16 
17 #define __TBB_NO_IMPLICIT_LINKAGE 1
18 
19 #if _USRDLL
20 
21 #include <stdlib.h>
22 #include "common/config.h"
23 #include "common/utils_assert.h"
24 #include "tbb/scalable_allocator.h"
25 
26 #if _WIN32||_WIN64
27 extern "C" {
28     extern __declspec(dllexport) void callDll();
29 }
30 #endif
31 
32 extern "C" void callDll()
33 {
34     static const int NUM = 20;
35     void *ptrs[NUM];
36 
37     for (int i=0; i<NUM; i++) {
38         ptrs[i] = scalable_malloc(i*1024);
39         ASSERT(ptrs[i], nullptr);
40     }
41     for (int i=0; i<NUM; i++)
42         scalable_free(ptrs[i]);
43 }
44 
45 int main() {}
46 
47 
48 #else // _USRDLL
49 #include "common/config.h"
50 // FIXME: fix the test to support Windows* 8 Store Apps mode.
51 // For sanitizers, it fails because RUNPATH is lost: https://github.com/google/sanitizers/issues/1219
52 #if !__TBB_WIN8UI_SUPPORT && !(__GNUC__ && __GNUC__ < 10 && __TBB_USE_SANITIZERS) && __TBB_DYNAMIC_LOAD_ENABLED
53 
54 #define __TBB_NO_IMPLICIT_LINKAGE 1
55 #include "common/test.h"
56 #include "common/utils.h"
57 #include "common/utils_dynamic_libs.h"
58 #include "common/utils_report.h"
59 #include "common/memory_usage.h"
60 #include "common/spin_barrier.h"
61 
62 
63 class UseDll {
64     utils::FunctionAddress run;
65 public:
66     UseDll(utils::FunctionAddress runPtr) : run(runPtr) { }
67     void operator()( std::size_t /*id*/ ) const {
68         (*run)();
69     }
70 };
71 
72 void LoadThreadsUnload()
73 {
74     utils::LIBRARY_HANDLE lib =
75         utils::OpenLibrary(TEST_LIBRARY_NAME("_test_malloc_used_by_lib"));
76     ASSERT(lib, "Can't load " TEST_LIBRARY_NAME("_test_malloc_used_by_lib"));
77     utils::NativeParallelFor(std::size_t(4), UseDll(utils::GetAddress(lib, "callDll")));
78     utils::CloseLibrary(lib);
79 }
80 
81 struct UnloadCallback {
82     utils::LIBRARY_HANDLE lib;
83 
84     void operator() () const {
85         utils::CloseLibrary(lib);
86     }
87 };
88 
89 struct RunWithLoad {
90     static utils::SpinBarrier startBarr, endBarr;
91     static UnloadCallback unloadCallback;
92     static utils::FunctionAddress runPtr;
93 
94     void operator()(std::size_t id) const {
95         if (!id) {
96             utils::LIBRARY_HANDLE lib =
97                 utils::OpenLibrary(TEST_LIBRARY_NAME("_test_malloc_used_by_lib"));
98             ASSERT(lib, "Can't load " TEST_LIBRARY_NAME("_test_malloc_used_by_lib"));
99             runPtr = utils::GetAddress(lib, "callDll");
100             unloadCallback.lib = lib;
101         }
102         startBarr.wait();
103         (*runPtr)();
104         endBarr.wait(unloadCallback);
105     }
106 };
107 
108 utils::SpinBarrier RunWithLoad::startBarr{}, RunWithLoad::endBarr{};
109 UnloadCallback RunWithLoad::unloadCallback;
110 utils::FunctionAddress RunWithLoad::runPtr;
111 
112 void ThreadsLoadUnload() {
113     constexpr std::size_t threads = 4;
114 
115     RunWithLoad::startBarr.initialize(threads);
116     RunWithLoad::endBarr.initialize(threads);
117     RunWithLoad body{};
118     utils::NativeParallelFor(threads, body);
119 }
120 
121 //! \brief \ref error_guessing
122 TEST_CASE("use test as lib") {
123     const int ITERS = 20;
124     int i;
125     std::ptrdiff_t memory_leak = 0;
126 
127     utils::GetMemoryUsage();
128 
129     for (int run = 0; run < 2; run++) {
130         // expect that memory consumption stabilized after several runs
131         for (i = 0; i < ITERS; i++) {
132             std::size_t memory_in_use = utils::GetMemoryUsage();
133             if (run) {
134                 LoadThreadsUnload();
135             } else {
136                 ThreadsLoadUnload();
137             }
138             memory_leak = utils::GetMemoryUsage() - memory_in_use;
139             if (memory_leak == 0)  // possibly too strong?
140                 break;
141         }
142         if(i==ITERS) {
143             // not stabilized, could be leak
144             REPORT( "Error: memory leak of up to %ld bytes\n", static_cast<long>(memory_leak));
145             WARN(false);
146         }
147     }
148 }
149 #endif /* Unsupported configurations */
150 #endif // _USRDLL
151