1 /*
2     Copyright (c) 2020-2021 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 #include "common/test.h"
18 
19 #if (!__TBB_WIN8UI_SUPPORT && !defined(WINAPI_FAMILY) && !__ANDROID__)
20 
21 #include "oneapi/tbb/task.h"
22 #include "oneapi/tbb/task_group.h"
23 #include <thread>
24 
25 //! \file conformance_resumable_tasks.cpp
26 //! \brief Test for [resumable_tasks] specification
27 
28 thread_local bool mLocal = false;
29 
30 //! Test asynchronous resume
31 //! \brief \ref interface \ref requirement
32 TEST_CASE("Async test") {
33     CHECK(!mLocal);
34     mLocal = true;
35     bool suspend = false, resume = false;
36     std::thread t;
__anon366fea4d0102(oneapi::tbb::task::suspend_point sp) 37     oneapi::tbb::task::suspend([&t, &suspend, &resume](oneapi::tbb::task::suspend_point sp) {
38         suspend = true;
39         t = std::thread([sp, &resume] {
40             resume = true;
41             oneapi::tbb::task::resume(sp);
42         });
43     });
44     CHECK(suspend);
45     CHECK(resume);
46     CHECK_MESSAGE(mLocal, "The same thread is expected");
47     mLocal = false;
48     t.join();
49 }
50 
51 //! Test parallel resume
52 //! \brief \ref interface \ref requirement
53 TEST_CASE("Parallel test") {
54     CHECK(!mLocal);
55     mLocal = true;
56     constexpr int N = 100;
57     std::atomic<int> suspend{}, resume{};
58     oneapi::tbb::task_group tg;
59     for (int i = 0; i < N; ++i) {
__anon366fea4d0302null60         tg.run([&tg, &suspend, &resume] {
61             oneapi::tbb::task::suspend([&tg, &suspend, &resume](oneapi::tbb::task::suspend_point sp) {
62                 ++suspend;
63                 tg.run([sp, &resume] {
64                     ++resume;
65                     oneapi::tbb::task::resume(sp);
66                 });
67             });
68         });
69     }
70     tg.wait();
71     CHECK(suspend == N);
72     CHECK(resume == N);
73     CHECK_MESSAGE(mLocal, "The same thread is expected");
74 }
75 #endif
76