| /****************************************************************************** |
| * |
| * Copyright (C) 2014 Google, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| #include <gtest/gtest.h> |
| |
| #include "AlarmTestHarness.h" |
| |
| extern "C" { |
| #include "osi/include/alarm.h" |
| #include "osi/include/osi.h" |
| #include "osi/include/semaphore.h" |
| } |
| |
| static semaphore_t *semaphore; |
| static int cb_counter; |
| |
| static const uint64_t EPSILON_MS = 5; |
| |
| static void msleep(uint64_t ms) { |
| usleep(ms * 1000); |
| } |
| |
| class AlarmTest : public AlarmTestHarness { |
| protected: |
| virtual void SetUp() { |
| AlarmTestHarness::SetUp(); |
| cb_counter = 0; |
| |
| semaphore = semaphore_new(0); |
| } |
| |
| virtual void TearDown() { |
| semaphore_free(semaphore); |
| AlarmTestHarness::TearDown(); |
| } |
| }; |
| |
| static void cb(UNUSED_ATTR void *data) { |
| ++cb_counter; |
| semaphore_post(semaphore); |
| } |
| |
| TEST_F(AlarmTest, test_new_free_simple) { |
| alarm_t *alarm = alarm_new(); |
| ASSERT_TRUE(alarm != NULL); |
| alarm_free(alarm); |
| } |
| |
| TEST_F(AlarmTest, test_free_null) { |
| alarm_free(NULL); |
| } |
| |
| TEST_F(AlarmTest, test_simple_cancel) { |
| alarm_t *alarm = alarm_new(); |
| alarm_cancel(alarm); |
| alarm_free(alarm); |
| } |
| |
| TEST_F(AlarmTest, test_cancel) { |
| alarm_t *alarm = alarm_new(); |
| alarm_set(alarm, 10, cb, NULL); |
| alarm_cancel(alarm); |
| |
| msleep(10 + EPSILON_MS); |
| |
| EXPECT_EQ(cb_counter, 0); |
| EXPECT_EQ(lock_count, 0); |
| alarm_free(alarm); |
| } |
| |
| TEST_F(AlarmTest, test_cancel_idempotent) { |
| alarm_t *alarm = alarm_new(); |
| alarm_set(alarm, 10, cb, NULL); |
| alarm_cancel(alarm); |
| alarm_cancel(alarm); |
| alarm_cancel(alarm); |
| alarm_free(alarm); |
| } |
| |
| TEST_F(AlarmTest, test_set_short) { |
| alarm_t *alarm = alarm_new(); |
| alarm_set(alarm, 10, cb, NULL); |
| |
| EXPECT_EQ(cb_counter, 0); |
| EXPECT_EQ(lock_count, 1); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 1); |
| EXPECT_EQ(lock_count, 0); |
| |
| alarm_free(alarm); |
| } |
| |
| TEST_F(AlarmTest, test_set_long) { |
| alarm_t *alarm = alarm_new(); |
| alarm_set(alarm, TIMER_INTERVAL_FOR_WAKELOCK_IN_MS, cb, NULL); |
| |
| EXPECT_EQ(cb_counter, 0); |
| EXPECT_EQ(lock_count, 0); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 1); |
| EXPECT_EQ(lock_count, 0); |
| |
| alarm_free(alarm); |
| } |
| |
| TEST_F(AlarmTest, test_set_short_short) { |
| alarm_t *alarm[2] = { |
| alarm_new(), |
| alarm_new() |
| }; |
| |
| alarm_set(alarm[0], 10, cb, NULL); |
| alarm_set(alarm[1], 20, cb, NULL); |
| |
| EXPECT_EQ(cb_counter, 0); |
| EXPECT_EQ(lock_count, 1); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 1); |
| EXPECT_EQ(lock_count, 1); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 2); |
| EXPECT_EQ(lock_count, 0); |
| |
| alarm_free(alarm[0]); |
| alarm_free(alarm[1]); |
| } |
| |
| TEST_F(AlarmTest, test_set_short_long) { |
| alarm_t *alarm[2] = { |
| alarm_new(), |
| alarm_new() |
| }; |
| |
| alarm_set(alarm[0], 10, cb, NULL); |
| alarm_set(alarm[1], 10 + TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS, cb, NULL); |
| |
| EXPECT_EQ(cb_counter, 0); |
| EXPECT_EQ(lock_count, 1); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 1); |
| EXPECT_EQ(lock_count, 0); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 2); |
| EXPECT_EQ(lock_count, 0); |
| |
| alarm_free(alarm[0]); |
| alarm_free(alarm[1]); |
| } |
| |
| TEST_F(AlarmTest, test_set_long_long) { |
| alarm_t *alarm[2] = { |
| alarm_new(), |
| alarm_new() |
| }; |
| |
| alarm_set(alarm[0], TIMER_INTERVAL_FOR_WAKELOCK_IN_MS, cb, NULL); |
| alarm_set(alarm[1], 2 * TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS, cb, NULL); |
| |
| EXPECT_EQ(cb_counter, 0); |
| EXPECT_EQ(lock_count, 0); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 1); |
| EXPECT_EQ(lock_count, 0); |
| |
| semaphore_wait(semaphore); |
| |
| EXPECT_EQ(cb_counter, 2); |
| EXPECT_EQ(lock_count, 0); |
| |
| alarm_free(alarm[0]); |
| alarm_free(alarm[1]); |
| } |
| |
| // Try to catch any race conditions between the timer callback and |alarm_free|. |
| TEST_F(AlarmTest, test_callback_free_race) { |
| for (int i = 0; i < 1000; ++i) { |
| alarm_t *alarm = alarm_new(); |
| alarm_set(alarm, 0, cb, NULL); |
| alarm_free(alarm); |
| } |
| } |