Alex Light | df00a1e | 2017-11-01 09:29:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 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 "art_method-inl.h" |
| 18 | #include "base/mutex-inl.h" |
| 19 | #include "scoped_thread_state_change-inl.h" |
| 20 | #include "thread-inl.h" |
| 21 | #include "thread_pool.h" |
| 22 | |
| 23 | namespace art { |
| 24 | |
| 25 | struct TestClosure : public Closure { |
| 26 | bool first_run_start; |
| 27 | bool first_run_end; |
| 28 | bool second_run; |
| 29 | bool second_run_interleaved; |
| 30 | |
Roland Levillain | bbc6e7e | 2018-08-24 16:58:47 +0100 | [diff] [blame] | 31 | void Run(Thread* self) override { |
Alex Light | df00a1e | 2017-11-01 09:29:53 -0700 | [diff] [blame] | 32 | CHECK_EQ(self, Thread::Current()) << "Not running on target thread!"; |
| 33 | if (!first_run_start) { |
| 34 | CHECK(!second_run); |
| 35 | first_run_start = true; |
| 36 | // Suspend ourself so that we will perform the second run. |
| 37 | { |
| 38 | ScopedObjectAccess soa(self); |
| 39 | self->FullSuspendCheck(); |
| 40 | } |
| 41 | first_run_end = true; |
| 42 | } else { |
| 43 | CHECK(!second_run); |
| 44 | CHECK(first_run_start); |
| 45 | second_run = true; |
| 46 | second_run_interleaved = !first_run_end; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | void Check() { |
| 51 | CHECK(first_run_start); |
| 52 | CHECK(first_run_end); |
| 53 | CHECK(second_run); |
| 54 | CHECK(second_run_interleaved); |
| 55 | } |
| 56 | }; |
| 57 | |
| 58 | static TestClosure gTestClosure = {}; |
| 59 | |
| 60 | extern "C" JNIEXPORT void JNICALL Java_Main_checkCheckpointsRun(JNIEnv*, jclass) { |
| 61 | gTestClosure.Check(); |
| 62 | } |
| 63 | |
| 64 | struct SetupClosure : public Closure { |
Roland Levillain | bbc6e7e | 2018-08-24 16:58:47 +0100 | [diff] [blame] | 65 | void Run(Thread* self) override { |
Alex Light | df00a1e | 2017-11-01 09:29:53 -0700 | [diff] [blame] | 66 | CHECK_EQ(self, Thread::Current()) << "Not running on target thread!"; |
| 67 | ScopedObjectAccess soa(self); |
| 68 | MutexLock tscl_mu(self, *Locks::thread_suspend_count_lock_); |
| 69 | // Both should succeed since we are in runnable and have the lock. |
| 70 | CHECK(self->RequestCheckpoint(&gTestClosure)) << "Could not set first checkpoint."; |
| 71 | CHECK(self->RequestCheckpoint(&gTestClosure)) << "Could not set second checkpoint."; |
| 72 | } |
| 73 | }; |
| 74 | |
| 75 | static SetupClosure gSetupClosure = {}; |
| 76 | |
| 77 | extern "C" JNIEXPORT void JNICALL Java_Main_pushCheckpoints(JNIEnv*, jclass, jobject thr) { |
| 78 | Thread* self = Thread::Current(); |
| 79 | ScopedObjectAccess soa(self); |
| 80 | MutexLock tll_mu(self, *Locks::thread_list_lock_); |
| 81 | Thread* target = Thread::FromManagedThread(soa, thr); |
| 82 | while (true) { |
| 83 | MutexLock tscl_mu(self, *Locks::thread_suspend_count_lock_); |
| 84 | if (target->RequestCheckpoint(&gSetupClosure)) { |
| 85 | break; |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | } // namespace art |