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https://github.com/wpilibsuite/allwpilib
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876c650471
Imported from https://github.com/palacaze/sigslot Classes were renamed from lowercase_me to UppercaseMe style, primarily to avoid conflicting with the C standard library "signal" function. They were also moved to the "wpi::sig" namespace.
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2018 FIRST. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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/*
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Sigslot, a signal-slot library
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https://github.com/palacaze/sigslot
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MIT License
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Copyright (c) 2017 Pierre-Antoine Lacaze
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "wpi/Signal.h" // NOLINT(build/include_order)
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#include "gtest/gtest.h" // NOLINT(build/include_order)
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#include <array>
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#include <atomic>
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#include <thread>
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using namespace wpi::sig;
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namespace {
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std::atomic<int> sum{0};
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void f(int i) { sum += i; }
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void emit_many(Signal<int>& sig) {
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for (int i = 0; i < 10000; ++i) sig(1);
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}
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void connect_emit(Signal<int>& sig) {
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for (int i = 0; i < 100; ++i) {
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auto s = sig.connect_scoped(f);
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for (int j = 0; j < 100; ++j) sig(1);
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}
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}
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} // namespace
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namespace wpi {
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TEST(Signal, ThreadedMix) {
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sum = 0;
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Signal<int> sig;
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std::array<std::thread, 10> threads;
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for (auto& t : threads) t = std::thread(connect_emit, std::ref(sig));
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for (auto& t : threads) t.join();
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}
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TEST(Signal, ThreadedEmission) {
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sum = 0;
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Signal<int> sig;
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sig.connect(f);
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std::array<std::thread, 10> threads;
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for (auto& t : threads) t = std::thread(emit_many, std::ref(sig));
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for (auto& t : threads) t.join();
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ASSERT_EQ(sum, 100000);
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}
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} // namespace wpi
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