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am e04aa450: Merge "Clean up the pthread key tests."

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* commit 'e04aa450c2b51ea066d1a1c37978cce808d13872':
  Clean up the pthread key tests.
This commit is contained in:
Dan Albert 2014-09-30 23:57:33 +00:00 committed by Android Git Automerger
commit 090b25e8a9
1 changed files with 54 additions and 20 deletions
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74
tests/pthread_test.cpp
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@ -38,37 +38,71 @@ TEST(pthread, pthread_key_create) {
ASSERT_EQ(EINVAL, pthread_key_delete(key));
}
TEST(pthread, pthread_key_create_lots) {
#if defined(__BIONIC__) // glibc uses keys internally that its sysconf value doesn't account for.
TEST(pthread, pthread_keys_max) {
// POSIX says PTHREAD_KEYS_MAX should be at least 128.
ASSERT_GE(PTHREAD_KEYS_MAX, 128);
}
TEST(pthread, _SC_THREAD_KEYS_MAX_big_enough_for_POSIX) {
// sysconf shouldn't return a smaller value.
int sysconf_max = sysconf(_SC_THREAD_KEYS_MAX);
ASSERT_GE(sysconf_max, PTHREAD_KEYS_MAX);
}
TEST(pthread, pthread_key_many_distinct) {
// We should be able to allocate at least this many keys.
int nkeys = sysconf(_SC_THREAD_KEYS_MAX) / 2;
std::vector<pthread_key_t> keys;
auto scope_guard = make_scope_guard([&keys]{
for (auto key : keys) {
EXPECT_EQ(0, pthread_key_delete(key));
}
});
for (int i = 0; i < nkeys; ++i) {
pthread_key_t key;
// If this fails, it's likely that GLOBAL_INIT_THREAD_LOCAL_BUFFER_COUNT is
// wrong.
ASSERT_EQ(0, pthread_key_create(&key, NULL)) << i << " of " << nkeys;
keys.push_back(key);
ASSERT_EQ(0, pthread_setspecific(key, reinterpret_cast<void*>(i)));
}
for (int i = keys.size() - 1; i >= 0; --i) {
ASSERT_EQ(reinterpret_cast<void*>(i), pthread_getspecific(keys.back()));
pthread_key_t key = keys.back();
keys.pop_back();
ASSERT_EQ(0, pthread_key_delete(key));
}
}
TEST(pthread, pthread_key_EAGAIN) {
int sysconf_max = sysconf(_SC_THREAD_KEYS_MAX);
// sysconf shouldn't return a smaller value.
ASSERT_GE(sysconf_max, PTHREAD_KEYS_MAX);
// We can allocate _SC_THREAD_KEYS_MAX keys.
sysconf_max -= 2; // (Except that gtest takes two for itself.)
std::vector<pthread_key_t> keys;
for (int i = 0; i < sysconf_max; ++i) {
int rv = 0;
// Two keys are used by gtest, so sysconf_max should be more than we are
// allowed to allocate now.
for (int i = 0; i < sysconf_max; i++) {
pthread_key_t key;
// If this fails, it's likely that GLOBAL_INIT_THREAD_LOCAL_BUFFER_COUNT is wrong.
ASSERT_EQ(0, pthread_key_create(&key, NULL)) << i << " of " << sysconf_max;
rv = pthread_key_create(&key, NULL);
if (rv == EAGAIN) {
break;
}
EXPECT_EQ(0, rv);
keys.push_back(key);
}
// ...and that really is the maximum.
pthread_key_t key;
ASSERT_EQ(EAGAIN, pthread_key_create(&key, NULL));
// (Don't leak all those keys!)
for (size_t i = 0; i < keys.size(); ++i) {
ASSERT_EQ(0, pthread_key_delete(keys[i]));
// Don't leak keys.
for (auto key : keys) {
EXPECT_EQ(0, pthread_key_delete(key));
}
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
keys.clear();
// We should have eventually reached the maximum number of keys and received
// EAGAIN.
ASSERT_EQ(EAGAIN, rv);
}
TEST(pthread, pthread_key_delete) {