Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | */ |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 16 | #include "common/libs/threads/cuttlefish_thread.h" |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 17 | |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 18 | #include <android-base/logging.h> |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 19 | #include "common/libs/threads/thunkers.h" |
| 20 | #include "common/libs/time/monotonic_time.h" |
| 21 | |
| 22 | using avd::ConditionVariable; |
| 23 | using avd::Mutex; |
| 24 | using avd::ScopedThread; |
| 25 | using avd::time::MonotonicTimePoint; |
| 26 | using avd::time::Milliseconds; |
| 27 | |
| 28 | static const int FINISHED = 100; |
| 29 | |
| 30 | static void SleepUntil(const MonotonicTimePoint& in) { |
| 31 | struct timespec ts; |
| 32 | in.ToTimespec(&ts); |
| 33 | #ifdef CLOCK_MONOTONIC_RAW |
| 34 | // WARNING: |
| 35 | // While we do have CLOCK_MONOTONIC_RAW, we can't depend on it until: |
| 36 | // - ALL places relying on MonotonicTimePoint are fixed, |
| 37 | // - pthread supports pthread_timewait_monotonic. |
| 38 | // - CLOCK_MONOTONIC_RAW is re-enabled in monotonic_time.h. |
| 39 | // |
| 40 | // This is currently observable as a LEGITIMATE problem while running |
| 41 | // this test. DO NOT revert this to CLOCK_MONOTONIC_RAW until this is |
| 42 | // fixed everywhere AND this test passes. |
| 43 | clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &ts, NULL); |
| 44 | #else |
| 45 | clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &ts, NULL); |
| 46 | #endif |
| 47 | } |
| 48 | |
| 49 | class MutexTest { |
| 50 | public: |
| 51 | MutexTest() : busy_(NULL), stage_(0) {} |
| 52 | |
| 53 | void Run() { |
| 54 | { |
| 55 | ScopedThread thread_a( |
| 56 | MutexTestThunker<void*()>::call<&MutexTest::FastThread>, this); |
| 57 | ScopedThread thread_b( |
| 58 | MutexTestThunker<void*()>::call<&MutexTest::SlowThread>, this); |
| 59 | } |
| 60 | LOG(INFO) << "MutexTest: completed at stage " |
| 61 | << stage_ |
| 62 | << ", result: " |
| 63 | << ((stage_ == FINISHED) ? "PASSED" : "FAILED"); |
| 64 | } |
| 65 | |
| 66 | protected: |
| 67 | template <typename F> struct MutexTestThunker : |
| 68 | ThunkerBase<void, MutexTest, F>{}; |
| 69 | |
| 70 | void* FastThread() { |
| 71 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 72 | CHECK(busy_ == NULL); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 73 | busy_ = "FastThread"; |
| 74 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 75 | stage_ = 1; |
| 76 | busy_ = NULL; |
| 77 | mutex_.Unlock(); |
| 78 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(10)); |
| 79 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 80 | CHECK(busy_ == NULL); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 81 | busy_ = "FastThread"; |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 82 | CHECK(stage_ == 2); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 83 | stage_ = FINISHED; |
| 84 | busy_ = NULL; |
| 85 | mutex_.Unlock(); |
| 86 | return NULL; |
| 87 | } |
| 88 | |
| 89 | void* SlowThread() { |
| 90 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(50)); |
| 91 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 92 | CHECK(busy_== NULL); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 93 | busy_ = "SlowThread"; |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 94 | CHECK(stage_ == 1); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 95 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 96 | stage_ = 2; |
| 97 | busy_ = NULL; |
| 98 | mutex_.Unlock(); |
| 99 | return NULL; |
| 100 | } |
| 101 | |
| 102 | Mutex mutex_; |
| 103 | const char* busy_; |
| 104 | int stage_; |
| 105 | }; |
| 106 | |
| 107 | class NotifyOneTest { |
| 108 | public: |
| 109 | NotifyOneTest() : cond_(&mutex_), signalled_(0) {} |
| 110 | |
| 111 | void Run() { |
| 112 | { |
| 113 | ScopedThread thread_s( |
| 114 | Thunker<void*()>::call<&NotifyOneTest::SignalThread>, this); |
| 115 | ScopedThread thread_w1( |
| 116 | Thunker<void*()>::call<&NotifyOneTest::WaitThread>, this); |
| 117 | ScopedThread thread_w2( |
| 118 | Thunker<void*()>::call<&NotifyOneTest::WaitThread>, this); |
| 119 | } |
| 120 | LOG(INFO) << "NotifyOneTest: completed, signalled " |
| 121 | << signalled_ |
| 122 | << ", result: " |
| 123 | << ((signalled_ == 2) ? "PASSED" : "FAILED"); |
| 124 | } |
| 125 | |
| 126 | protected: |
| 127 | template <typename F> struct Thunker : |
| 128 | ThunkerBase<void, NotifyOneTest, F>{}; |
| 129 | |
| 130 | void* SignalThread() { |
| 131 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 132 | mutex_.Lock(); |
| 133 | cond_.NotifyOne(); |
| 134 | mutex_.Unlock(); |
| 135 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 136 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 137 | CHECK(signalled_== 1); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 138 | cond_.NotifyOne(); |
| 139 | mutex_.Unlock(); |
| 140 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 141 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 142 | CHECK(signalled_ == 2); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 143 | mutex_.Unlock(); |
| 144 | return NULL; |
| 145 | } |
| 146 | |
| 147 | void* WaitThread() { |
| 148 | mutex_.Lock(); |
| 149 | cond_.Wait(); |
| 150 | signalled_++; |
| 151 | mutex_.Unlock(); |
| 152 | return NULL; |
| 153 | } |
| 154 | |
| 155 | Mutex mutex_; |
| 156 | ConditionVariable cond_; |
| 157 | int signalled_; |
| 158 | }; |
| 159 | |
| 160 | class NotifyAllTest { |
| 161 | public: |
| 162 | NotifyAllTest() : cond_(&mutex_), signalled_(0) {} |
| 163 | |
| 164 | void Run() { |
| 165 | { |
| 166 | ScopedThread thread_s( |
| 167 | Thunker<void*()>::call<&NotifyAllTest::SignalThread>, this); |
| 168 | ScopedThread thread_w1( |
| 169 | Thunker<void*()>::call<&NotifyAllTest::WaitThread>, this); |
| 170 | ScopedThread thread_w2( |
| 171 | Thunker<void*()>::call<&NotifyAllTest::WaitThread>, this); |
| 172 | } |
| 173 | printf("NotifyAllTest: completed, signalled %d (%s)\n", |
| 174 | signalled_, (signalled_ == 2) ? "PASSED" : "FAILED"); |
| 175 | } |
| 176 | |
| 177 | protected: |
| 178 | template <typename F> struct Thunker : |
| 179 | ThunkerBase<void, NotifyAllTest, F>{}; |
| 180 | |
| 181 | void* SignalThread() { |
| 182 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 183 | mutex_.Lock(); |
| 184 | cond_.NotifyAll(); |
| 185 | mutex_.Unlock(); |
| 186 | SleepUntil(MonotonicTimePoint::Now() + Milliseconds(100)); |
| 187 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 188 | CHECK(signalled_ == 2); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 189 | mutex_.Unlock(); |
| 190 | return NULL; |
| 191 | } |
| 192 | |
| 193 | void* WaitThread() { |
| 194 | mutex_.Lock(); |
| 195 | cond_.Wait(); |
| 196 | signalled_++; |
| 197 | mutex_.Unlock(); |
| 198 | return NULL; |
| 199 | } |
| 200 | |
| 201 | Mutex mutex_; |
| 202 | ConditionVariable cond_; |
| 203 | int signalled_; |
| 204 | }; |
| 205 | |
| 206 | class WaitUntilTest { |
| 207 | public: |
| 208 | WaitUntilTest() : cond_(&mutex_), stage_(0) {} |
| 209 | |
| 210 | void Run() { |
| 211 | start_ = MonotonicTimePoint::Now(); |
| 212 | { |
| 213 | ScopedThread thread_s( |
| 214 | Thunker<void*()>::call<&WaitUntilTest::SignalThread>, this); |
| 215 | ScopedThread thread_w2( |
| 216 | Thunker<void*()>::call<&WaitUntilTest::WaitThread>, this); |
| 217 | } |
| 218 | printf("WaitUntilTest: completed, stage %d (%s)\n", |
| 219 | stage_, (stage_ == FINISHED) ? "PASSED" : "FAILED"); |
| 220 | } |
| 221 | |
| 222 | protected: |
| 223 | template <typename F> struct Thunker : |
| 224 | ThunkerBase<void, WaitUntilTest, F>{}; |
| 225 | |
| 226 | void* SignalThread() { |
| 227 | SleepUntil(start_ + Milliseconds(200)); |
| 228 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 229 | CHECK(stage_ == 2); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 230 | cond_.NotifyOne(); |
| 231 | stage_ = 3; |
| 232 | mutex_.Unlock(); |
| 233 | return NULL; |
| 234 | } |
| 235 | |
| 236 | void* WaitThread() { |
| 237 | mutex_.Lock(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 238 | CHECK(stage_ == 0); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 239 | stage_ = 1; |
| 240 | cond_.WaitUntil(start_ + Milliseconds(50)); |
| 241 | MonotonicTimePoint current(MonotonicTimePoint::Now()); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 242 | CHECK(Milliseconds(current - start_).count() >= 50); |
| 243 | CHECK(Milliseconds(current - start_).count() <= 100); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 244 | stage_ = 2; |
| 245 | cond_.WaitUntil(start_ + Milliseconds(1000)); |
| 246 | current = MonotonicTimePoint::Now(); |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 247 | CHECK(Milliseconds(current - start_).count() <= 500); |
| 248 | CHECK(stage_ == 3); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 249 | stage_ = FINISHED; |
| 250 | mutex_.Unlock(); |
| 251 | return NULL; |
| 252 | } |
| 253 | |
| 254 | Mutex mutex_; |
| 255 | ConditionVariable cond_; |
| 256 | int stage_; |
| 257 | MonotonicTimePoint start_; |
| 258 | }; |
| 259 | |
Greg Hartman | a4ff248 | 2017-10-03 16:35:00 -0700 | [diff] [blame^] | 260 | int main(int, char**argv) { |
| 261 | ::android::base::InitLogging(argv, android::base::StderrLogger); |
Tomasz Wiszkowski | a449e9c | 2017-05-25 14:30:56 -0700 | [diff] [blame] | 262 | MutexTest mt; |
| 263 | mt.Run(); |
| 264 | NotifyOneTest nt1; |
| 265 | nt1.Run(); |
| 266 | NotifyAllTest nta; |
| 267 | nta.Run(); |
| 268 | WaitUntilTest wu; |
| 269 | wu.Run(); |
| 270 | } |