116 lines
3.0 KiB
C++
116 lines
3.0 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/utils/format.h"
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#include "td/utils/logging.h"
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#include "td/utils/MpscLinkQueue.h"
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#include "td/utils/port/thread.h"
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#include "td/utils/tests.h"
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class NodeX : public td::MpscLinkQueueImpl::Node {
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public:
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explicit NodeX(int value) : value_(value) {
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}
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auto to_mpsc_link_queue_node() {
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return static_cast<td::MpscLinkQueueImpl::Node *>(this);
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}
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static NodeX *from_mpsc_link_queue_node(td::MpscLinkQueueImpl::Node *node) {
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return static_cast<NodeX *>(node);
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}
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int value() {
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return value_;
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}
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private:
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int value_;
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};
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using QueueNode = td::MpscLinkQueueUniquePtrNode<NodeX>;
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QueueNode create_node(int value) {
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return QueueNode(std::make_unique<NodeX>(value));
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}
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TEST(MpscLinkQueue, one_thread) {
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td::MpscLinkQueue<QueueNode> queue;
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{
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queue.push(create_node(1));
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queue.push(create_node(2));
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queue.push(create_node(3));
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td::MpscLinkQueue<QueueNode>::Reader reader;
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queue.pop_all(reader);
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queue.push(create_node(4));
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queue.pop_all(reader);
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std::vector<int> v;
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while (auto node = reader.read()) {
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v.push_back(node.value().value());
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}
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CHECK((v == std::vector<int>{1, 2, 3, 4})) << td::format::as_array(v);
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v.clear();
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queue.push(create_node(5));
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queue.pop_all(reader);
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while (auto node = reader.read()) {
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v.push_back(node.value().value());
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}
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CHECK((v == std::vector<int>{5})) << td::format::as_array(v);
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}
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{
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queue.push_unsafe(create_node(3));
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queue.push_unsafe(create_node(2));
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queue.push_unsafe(create_node(1));
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queue.push_unsafe(create_node(0));
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td::MpscLinkQueue<QueueNode>::Reader reader;
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queue.pop_all_unsafe(reader);
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std::vector<int> v;
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while (auto node = reader.read()) {
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v.push_back(node.value().value());
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}
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CHECK((v == std::vector<int>{3, 2, 1, 0})) << td::format::as_array(v);
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}
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}
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#if !TD_THREAD_UNSUPPORTED
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TEST(MpscLinkQueue, multi_thread) {
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td::MpscLinkQueue<QueueNode> queue;
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int threads_n = 10;
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int queries_n = 1000000;
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std::vector<int> next_value(threads_n);
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std::vector<td::thread> threads(threads_n);
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int thread_i = 0;
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for (auto &thread : threads) {
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thread = td::thread([&, id = thread_i] {
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for (int i = 0; i < queries_n; i++) {
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queue.push(create_node(i * threads_n + id));
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}
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});
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thread_i++;
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}
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int active_threads = threads_n;
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td::MpscLinkQueue<QueueNode>::Reader reader;
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while (active_threads) {
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queue.pop_all(reader);
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while (auto value = reader.read()) {
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auto x = value.value().value();
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auto thread_id = x % threads_n;
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x /= threads_n;
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CHECK(next_value[thread_id] == x);
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next_value[thread_id]++;
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if (x + 1 == queries_n) {
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active_threads--;
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}
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}
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}
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for (auto &thread : threads) {
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thread.join();
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}
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}
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#endif //!TD_THREAD_UNSUPPORTED
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