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b4e765362b
RootStoppable was using two separate flags to identify that it was stopping. LoadManager was being notified when one flag was set, but checking the other flag (not yet set) to see if we were stopping. There is no strong motivation for two flags. The timing window is closed by removing one flag and moving around a chunk of code.
464 lines
11 KiB
C++
464 lines
11 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <ripple/core/Stoppable.h>
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#include <ripple/beast/unit_test.h>
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#include <thread>
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namespace ripple {
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namespace test {
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class Stoppable_test
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: public beast::unit_test::suite
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{
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/*
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R
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/ | \
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/ | \
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A B C
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/ | \ /\ |
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D E F G H I
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J
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*/
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unsigned count = 0;
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class D
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: public Stoppable
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{
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Stoppable_test& test_;
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public:
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D(Stoppable& parent, Stoppable_test& test)
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: Stoppable("D", parent)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 9, "D::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 0, "D::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 11, "D::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 2, "D::onChildrenStopped called out of order");
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}
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};
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class J
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: public Stoppable
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{
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Stoppable_test& test_;
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public:
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J(Stoppable& parent, Stoppable_test& test)
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: Stoppable("J", parent)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 7, "J::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 1, "J::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 10, "J::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 4, "J::onChildrenStopped called out of order");
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}
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};
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class E
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: public Stoppable
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{
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J j_;
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Stoppable_test& test_;
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public:
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E(Stoppable& parent, Stoppable_test& test)
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: Stoppable("E", parent)
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, j_(*this, test)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 8, "E::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 2, "E::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 9, "E::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 3, "E::onChildrenStopped called out of order");
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}
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};
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class F
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: public Stoppable
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{
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Stoppable_test& test_;
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public:
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F(Stoppable& parent, Stoppable_test& test)
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: Stoppable("F", parent)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 6, "F::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 3, "F::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 8, "F::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 5, "F::onChildrenStopped called out of order");
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}
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};
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class A
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: public Stoppable
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{
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enum {running, please_stop, stopping, stopped};
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D d_;
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E e_;
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F f_;
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Stoppable_test& test_;
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std::atomic<int> stop_;
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public:
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A(Stoppable& parent, Stoppable_test& test)
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: Stoppable("A", parent)
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, d_(*this, test)
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, e_(*this, test)
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, f_(*this, test)
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, test_(test)
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, stop_(running)
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{}
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~A()
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{
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while (stop_ != stopped)
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;
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}
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void run()
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{
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while (stop_ == running)
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;
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stop_ = stopping;
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}
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void onPrepare() override
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{
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test_.expect(++test_.count == 10, "A::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 4, "A::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 7, "A::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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stop_ = please_stop;
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while (stop_ != stopping)
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;
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Stoppable::stopped();
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test_.expect(--test_.count == 1, "A::onChildrenStopped called out of order");
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stop_ = stopped;
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}
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};
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class G
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: public Stoppable
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{
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Stoppable_test& test_;
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public:
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G(Stoppable& parent, Stoppable_test& test)
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: Stoppable("G", parent)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 4, "G::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 5, "G::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 6, "G::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 7, "G::onChildrenStopped called out of order");
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}
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};
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class H
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: public Stoppable
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{
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Stoppable_test& test_;
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public:
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H(Stoppable& parent, Stoppable_test& test)
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: Stoppable("H", parent)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 3, "H::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 6, "H::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 5, "H::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 8, "H::onChildrenStopped called out of order");
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}
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};
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class B
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: public Stoppable
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{
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G g_;
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H h_;
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Stoppable_test& test_;
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public:
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B(Stoppable& parent, Stoppable_test& test)
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: Stoppable("B", parent)
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, g_(*this, test)
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, h_(*this, test)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 5, "B::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 7, "B::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 4, "B::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 6, "B::onChildrenStopped called out of order");
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}
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};
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class I
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: public Stoppable
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{
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Stoppable_test& test_;
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public:
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I(Stoppable& parent, Stoppable_test& test)
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: Stoppable("I", parent)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 1, "I::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 8, "I::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 3, "I::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 10, "I::onChildrenStopped called out of order");
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}
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};
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class C
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: public Stoppable
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{
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I i_;
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Stoppable_test& test_;
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public:
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C(Stoppable& parent, Stoppable_test& test)
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: Stoppable("C", parent)
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, i_(*this, test)
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, test_(test)
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{}
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void onPrepare() override
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{
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test_.expect(++test_.count == 2, "C::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 9, "C::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 2, "C::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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Stoppable::stopped();
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test_.expect(--test_.count == 9, "C::onChildrenStopped called out of order");
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}
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};
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class Root
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: public RootStoppable
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{
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std::thread a_;
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B b_;
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C c_;
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Stoppable_test& test_;
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public:
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Root(Stoppable_test& test)
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: RootStoppable("R")
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, a_(&A::run, std::make_unique<A>(*this, test))
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, b_(*this, test)
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, c_(*this, test)
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, test_(test)
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{}
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void run()
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{
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prepare();
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start();
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stop({});
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}
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void onPrepare() override
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{
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test_.expect(++test_.count == 11, "Root::onPrepare called out of order");
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}
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void onStart() override
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{
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test_.expect(--test_.count == 10, "Root::onStart called out of order");
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}
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void onStop() override
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{
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test_.expect(++test_.count == 1, "Root::onStop called out of order");
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}
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void onChildrenStopped() override
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{
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a_.join();
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Stoppable::stopped();
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test_.expect(--test_.count == 0, "Root::onChildrenStopped called out of order");
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}
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void secondStop()
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{
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// Calling stop() a second time should have no negative
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// consequences.
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stop({});
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}
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};
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public:
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void run()
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{
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{
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Root rt(*this);
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rt.run();
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rt.secondStop();
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}
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pass();
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}
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};
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BEAST_DEFINE_TESTSUITE(Stoppable,core,ripple);
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}
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}
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