109c327209
Extensible is for carrying additional user-defined information. Each type of the extension will have a unique extension ID and there is a linked list of extension in every Extensible object. There will be most one extension with the same type in the linked list. With the shared_ptr, the extension will be deleted automatically. That is, the caller should allocate the extension and add into the packet. Change-Id: I54729536a305c91c751d5fb059bd2f9a3db05523 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62892 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
/*
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* Copyright 2023 Google, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <gtest/gtest.h>
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#include <memory>
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#include "base/extensible.hh"
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using namespace gem5;
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namespace {
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class TestTarget : public Extensible<TestTarget>
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{
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};
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class IntegerExtension : public Extension<TestTarget, IntegerExtension>
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{
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public:
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explicit IntegerExtension(uint32_t data)
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: data_(data) {}
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std::unique_ptr<gem5::ExtensionBase> clone() const override
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{
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return std::unique_ptr<IntegerExtension>(new IntegerExtension(data_));
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}
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uint32_t getData() const { return data_; }
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private:
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uint32_t data_;
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};
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class BoolExtension : public Extension<TestTarget, BoolExtension>
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{
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public:
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explicit BoolExtension(bool data)
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: data_(data) {}
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std::unique_ptr<gem5::ExtensionBase> clone() const override
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{
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return std::unique_ptr<BoolExtension>(new BoolExtension(data_));
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}
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bool getData() const { return data_; }
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private:
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bool data_;
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};
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} // namespace
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TEST(ExtensibleTest, ExtensionID)
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{
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std::shared_ptr<IntegerExtension> ext1(new IntegerExtension(0xabcd));
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EXPECT_EQ(0, ext1->getExtensionID());
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std::shared_ptr<BoolExtension> ext2(new BoolExtension(true));
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EXPECT_EQ(1, ext2->getExtensionID());
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}
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TEST(ExtensibleTest, SetAndRemoveExtension)
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{
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const uint32_t data = 0xbeef;
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std::shared_ptr<IntegerExtension> ext(new IntegerExtension(data));
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std::unique_ptr<TestTarget> target(new TestTarget);
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target->setExtension(ext);
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EXPECT_EQ(data, target->getExtension<IntegerExtension>()->getData());
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target->removeExtension<IntegerExtension>();
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EXPECT_EQ(nullptr, target->getExtension<IntegerExtension>());
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}
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TEST(ExtensibleTest, ReplaceExtension)
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{
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const uint32_t data = 0xbeef;
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std::shared_ptr<IntegerExtension> ext(new IntegerExtension(data));
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std::unique_ptr<TestTarget> target(new TestTarget);
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target->setExtension(ext);
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EXPECT_EQ(data, target->getExtension<IntegerExtension>()->getData());
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const uint32_t new_data = 0xa5a5;
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std::shared_ptr<IntegerExtension> new_ext(new IntegerExtension(new_data));
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target->setExtension(new_ext);
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EXPECT_EQ(new_data, target->getExtension<IntegerExtension>()->getData());
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}
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