4d014e15b4
Someone reported a bug if pthread_detach is called while a pthread_join is already in progress, but I'm unable to reproduce it. Keep the tests I wrote, though. Change-Id: I3d71450bbbb5345f2cb213dc56310ec020d528cc
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <pthread.h>
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#include <unistd.h>
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TEST(pthread, pthread_key_create) {
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pthread_key_t key;
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ASSERT_EQ(0, pthread_key_create(&key, NULL));
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ASSERT_EQ(0, pthread_key_delete(key));
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// Can't delete a key that's already been deleted.
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ASSERT_EQ(EINVAL, pthread_key_delete(key));
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}
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static void* IdFn(void* arg) {
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return arg;
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}
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static void* SleepFn(void* arg) {
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sleep(reinterpret_cast<unsigned int>(arg));
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return NULL;
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}
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static void* JoinFn(void* arg) {
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return reinterpret_cast<void*>(pthread_join(reinterpret_cast<pthread_t>(arg), NULL));
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}
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TEST(pthread, pthread_create) {
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void* expected_result = reinterpret_cast<void*>(123);
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// Can we create a thread?
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pthread_t t;
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ASSERT_EQ(0, pthread_create(&t, NULL, IdFn, expected_result));
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// If we join, do we get the expected value back?
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void* result;
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ASSERT_EQ(0, pthread_join(t, &result));
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ASSERT_EQ(expected_result, result);
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}
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TEST(pthread, pthread_no_join_after_detach) {
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pthread_t t1;
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ASSERT_EQ(0, pthread_create(&t1, NULL, SleepFn, reinterpret_cast<void*>(5)));
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// After a pthread_detach...
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ASSERT_EQ(0, pthread_detach(t1));
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// ...pthread_join should fail.
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void* result;
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ASSERT_EQ(EINVAL, pthread_join(t1, &result));
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}
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TEST(pthread, pthread_no_op_detach_after_join) {
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pthread_t t1;
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ASSERT_EQ(0, pthread_create(&t1, NULL, SleepFn, reinterpret_cast<void*>(1)));
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// If thread 2 is already waiting to join thread 1...
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pthread_t t2;
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ASSERT_EQ(0, pthread_create(&t2, NULL, JoinFn, reinterpret_cast<void*>(t1)));
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// ...a call to pthread_detach on thread 1 will "succeed"...
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ASSERT_EQ(0, pthread_detach(t1));
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// ...but the join still goes ahead.
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void* join_result;
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ASSERT_EQ(0, pthread_join(t2, &join_result));
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ASSERT_EQ(EINVAL, reinterpret_cast<int>(join_result));
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}
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