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/*
* Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "precompiled.hpp"
#include "compiler/compiler_globals.hpp"
#include "gc/shared/gc_globals.hpp"
#include "runtime/globals.hpp"
#include "runtime/globals_extension.hpp"
#include "runtime/flags/flagSetting.hpp"
#include "runtime/flags/jvmFlag.hpp"
#include "runtime/flags/jvmFlagAccess.hpp"
#include "unittest.hpp"
#define TEST_FLAG(f, type, value) \
do { \
ASSERT_TRUE(JVMFlag::find_flag(#f)->is_ ## type()); \
type original_value = f; \
{ \
AutoSaveRestore<type> FLAG_GUARD(f); \
f = value; \
} \
ASSERT_EQ(original_value, f); \
} while (0)
TEST_VM(FlagGuard, bool_flag) {
TEST_FLAG(AlwaysActAsServerClassMachine, bool, true);
}
TEST_VM(FlagGuard, int_flag) {
TEST_FLAG(ParGCArrayScanChunk, int, 1337);
}
TEST_VM(FlagGuard, uint_flag) {
TEST_FLAG(ConcGCThreads, uint, 1337);
}
TEST_VM(FlagGuard, size_t_flag) {
TEST_FLAG(HeapSizePerGCThread, size_t, 1337);
}
TEST_VM(FlagGuard, uint64_t_flag) {
TEST_FLAG(MaxRAM, uint64_t, 1337);
}
TEST_VM(FlagGuard, double_flag) {
TEST_FLAG(CompileThresholdScaling, double, 3.141569);
}
TEST_VM(FlagGuard, ccstr_flag) {
TEST_FLAG(PerfDataSaveFile, ccstr, "/a/random/path");
}
// SharedArchiveConfigFile is used only during "java -Xshare:dump", so
// it's safe to modify its value in gtest
TEST_VM(FlagAccess, ccstr_flag) {
FLAG_SET_CMDLINE(SharedArchiveConfigFile, "");
ASSERT_EQ(FLAG_IS_CMDLINE(SharedArchiveConfigFile), true);
EXPECT_STREQ(SharedArchiveConfigFile, "");
FLAG_SET_ERGO(SharedArchiveConfigFile, "foobar");
ASSERT_EQ(FLAG_IS_ERGO(SharedArchiveConfigFile), true);
EXPECT_STREQ(SharedArchiveConfigFile, "foobar");
FLAG_SET_ERGO(SharedArchiveConfigFile, nullptr);
ASSERT_EQ(FLAG_IS_ERGO(SharedArchiveConfigFile), true);
ASSERT_EQ(SharedArchiveConfigFile, nullptr);
FLAG_SET_ERGO(SharedArchiveConfigFile, "xyz");
ASSERT_EQ(FLAG_IS_ERGO(SharedArchiveConfigFile), true);
EXPECT_STREQ(SharedArchiveConfigFile, "xyz");
}
template <typename T, int type_enum>
static JVMFlag::Error get_flag(const char* name) {
JVMFlag* flag = (name == nullptr) ? nullptr : JVMFlag::find_flag(name);
T val;
return JVMFlagAccess::get<T, type_enum>(flag, &val);
}
TEST_VM(FlagAccess, wrong_format) {
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(int)>(nullptr)), JVMFlag::INVALID_FLAG);
// MaxRAMPercentage is a double flag
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(bool)> ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(int)> ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(uint)> ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(intx)> ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(uintx)> ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(uint64_t)>("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(size_t)> ("MaxRAMPercentage")), JVMFlag::WRONG_FORMAT);
ASSERT_EQ((get_flag<JVM_FLAG_TYPE(double)> ("MaxRAMPercentage")), JVMFlag::SUCCESS);
}
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