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/*
* Copyright (c) 2016, 2020, 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 "code/dependencyContext.hpp"
#include "unittest.hpp"
class TestDependencyContext {
public:
nmethod* _nmethods[3];
intptr_t _dependency_context;
DependencyContext dependencies() {
DependencyContext depContext(&_dependency_context);
return depContext;
}
TestDependencyContext() : _dependency_context(DependencyContext::EMPTY) {
CodeCache_lock->lock_without_safepoint_check();
_nmethods[0] = reinterpret_cast<nmethod*>(0x8 * 0);
_nmethods[1] = reinterpret_cast<nmethod*>(0x8 * 1);
_nmethods[2] = reinterpret_cast<nmethod*>(0x8 * 2);
dependencies().add_dependent_nmethod(_nmethods[2]);
dependencies().add_dependent_nmethod(_nmethods[1]);
dependencies().add_dependent_nmethod(_nmethods[0]);
}
~TestDependencyContext() {
dependencies().wipe();
CodeCache_lock->unlock();
}
static bool has_stale_entries(DependencyContext ctx) {
return ctx.has_stale_entries();
}
static bool find_stale_entries(DependencyContext ctx) {
return ctx.find_stale_entries();
}
};
static void test_remove_dependent_nmethod(int id, bool delete_immediately) {
TestDependencyContext c;
DependencyContext depContext = c.dependencies();
ASSERT_FALSE(TestDependencyContext::find_stale_entries(depContext));
ASSERT_FALSE(TestDependencyContext::has_stale_entries(depContext));
nmethod* nm = c._nmethods[id];
depContext.remove_dependent_nmethod(nm, delete_immediately);
if (!delete_immediately) {
ASSERT_TRUE(TestDependencyContext::find_stale_entries(depContext));
ASSERT_TRUE(TestDependencyContext::has_stale_entries(depContext));
ASSERT_TRUE(depContext.is_dependent_nmethod(nm));
depContext.expunge_stale_entries();
}
ASSERT_FALSE(TestDependencyContext::find_stale_entries(depContext));
ASSERT_FALSE(TestDependencyContext::has_stale_entries(depContext));
ASSERT_FALSE(depContext.is_dependent_nmethod(nm));
}
TEST_VM(code, dependency_context) {
test_remove_dependent_nmethod(0, false);
test_remove_dependent_nmethod(1, false);
test_remove_dependent_nmethod(2, false);
test_remove_dependent_nmethod(0, true);
test_remove_dependent_nmethod(1, true);
test_remove_dependent_nmethod(2, true);
}
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