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112 lines
3.9 KiB
112 lines
3.9 KiB
/*
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* Copyright (C) 2018 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 "membarrier.h"
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class ScopedErrnoCleaner {
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public:
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ScopedErrnoCleaner() { errno = 0; }
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~ScopedErrnoCleaner() { errno = 0; }
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};
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bool HasMembarrier(art::MembarrierCommand cmd) {
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ScopedErrnoCleaner errno_cleaner;
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int supported_cmds = art::membarrier(art::MembarrierCommand::kQuery);
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return (supported_cmds > 0) && ((supported_cmds & static_cast<int>(cmd)) != 0);
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}
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TEST(membarrier, query) {
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ScopedErrnoCleaner errno_cleaner;
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int supported = art::membarrier(art::MembarrierCommand::kQuery);
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if (errno == 0) {
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ASSERT_LE(0, supported);
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} else {
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ASSERT_TRUE(errno == ENOSYS && supported == -1);
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}
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}
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TEST(membarrier, global_barrier) {
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if (!HasMembarrier(art::MembarrierCommand::kGlobal)) {
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GTEST_LOG_(INFO) << "MembarrierCommand::kGlobal not supported, skipping test.";
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return;
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}
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ASSERT_EQ(0, art::membarrier(art::MembarrierCommand::kGlobal));
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}
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static const char* MembarrierCommandToName(art::MembarrierCommand cmd) {
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#define CASE_VALUE(x) case (x): return #x;
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switch (cmd) {
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CASE_VALUE(art::MembarrierCommand::kQuery);
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CASE_VALUE(art::MembarrierCommand::kGlobal);
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CASE_VALUE(art::MembarrierCommand::kGlobalExpedited);
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CASE_VALUE(art::MembarrierCommand::kRegisterGlobalExpedited);
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CASE_VALUE(art::MembarrierCommand::kPrivateExpedited);
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CASE_VALUE(art::MembarrierCommand::kRegisterPrivateExpedited);
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CASE_VALUE(art::MembarrierCommand::kPrivateExpeditedSyncCore);
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CASE_VALUE(art::MembarrierCommand::kRegisterPrivateExpeditedSyncCore);
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}
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}
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static void TestRegisterAndBarrierCommands(art::MembarrierCommand membarrier_cmd_register,
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art::MembarrierCommand membarrier_cmd_barrier) {
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if (!HasMembarrier(membarrier_cmd_register)) {
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GTEST_LOG_(INFO) << MembarrierCommandToName(membarrier_cmd_register)
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<< " not supported, skipping test.";
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return;
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}
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if (!HasMembarrier(membarrier_cmd_barrier)) {
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GTEST_LOG_(INFO) << MembarrierCommandToName(membarrier_cmd_barrier)
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<< " not supported, skipping test.";
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return;
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}
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ScopedErrnoCleaner errno_cleaner;
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// Check barrier use without prior registration.
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if (membarrier_cmd_register == art::MembarrierCommand::kRegisterGlobalExpedited) {
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// Global barrier use is always okay.
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ASSERT_EQ(0, art::membarrier(membarrier_cmd_barrier));
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} else {
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// Private barrier should fail.
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ASSERT_EQ(-1, art::membarrier(membarrier_cmd_barrier));
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ASSERT_EQ(EPERM, errno);
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errno = 0;
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}
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// Check registration for barrier succeeds.
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ASSERT_EQ(0, art::membarrier(membarrier_cmd_register));
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// Check barrier use after registration succeeds.
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ASSERT_EQ(0, art::membarrier(membarrier_cmd_barrier));
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}
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TEST(membarrier, global_expedited) {
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TestRegisterAndBarrierCommands(art::MembarrierCommand::kRegisterGlobalExpedited,
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art::MembarrierCommand::kGlobalExpedited);
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}
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TEST(membarrier, private_expedited) {
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TestRegisterAndBarrierCommands(art::MembarrierCommand::kRegisterPrivateExpedited,
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art::MembarrierCommand::kPrivateExpedited);
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}
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TEST(membarrier, private_expedited_sync_core) {
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TestRegisterAndBarrierCommands(art::MembarrierCommand::kRegisterPrivateExpeditedSyncCore,
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art::MembarrierCommand::kPrivateExpeditedSyncCore);
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}
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