add: basic mt ut for queue

include/libimp/nameof.h

@@ -11,6 +11,7 @@
 #include <cstring>
 
 #include "libimp/def.h"
+#include "libimp/export.h"
 #include "libimp/span.h"
 
 LIBIMP_NAMESPACE_BEG_
@@ -22,7 +23,7 @@ LIBIMP_NAMESPACE_BEG_
  * \param name the mangled name
  * \return std::string a human-readable demangled type name
  */
-std::string demangle(span<char const> name) noexcept;
+LIBIMP_EXPORT std::string demangle(span<char const> name) noexcept;
 
 /**
  * \brief Returns an implementation defined string containing the name of the type.

test/concur/test_concur_queue.cpp

@@ -1,8 +1,14 @@
 
+#include <cstdint>
+#include <cstddef>
+#include <atomic>
+#include <array>
+
 #include "gtest/gtest.h"
 
 #include "libconcur/queue.h"
 #include "libimp/log.h"
+#include "libimp/nameof.h"
 
 using namespace concur;
 
@@ -78,7 +84,77 @@ namespace {
 template <typename PR, typename CR>
 void test_queue(std::size_t np, std::size_t nc) {
   LIBIMP_LOG_();
+  log.info("\n\tStart with: [", imp::nameof<PR>(), " - ", imp::nameof<CR>(), "]\n\t\t", np, " producers, ", nc, " consumers...");
 
+  struct Data {
+    std::uint64_t n;
+    std::uint64_t i;
+  };
+  queue<Data, PR, CR> que;
+
+  constexpr static std::uint32_t loop_size = 10'0000;
+
+  std::atomic<std::uint64_t> sum {0};
+  std::atomic<std::size_t> running {np};
+
+  auto prod_call = [&](std::size_t n) {
+    for (std::uint32_t i = 1; i <= loop_size; ++i) {
+      std::this_thread::yield();
+      for (std::uint32_t k = 1; !que.push(Data{n, i}); ++k) {
+        std::this_thread::yield();
+        if (k % (loop_size / 10) == 0) {
+          log.info("[", n, "] put count: ", i, ", retry: ", k);
+          std::this_thread::sleep_for(std::chrono::milliseconds(1));
+        }
+      }
+      if (i % (loop_size / 10) == 0) {
+        log.info("[", n, "] put count: ", i);
+      }
+    }
+    --running;
+  };
+  auto cons_call = [&] {
+    for (;;) {
+      std::this_thread::yield();
+      Data v;
+      while (!que.pop(v)) {
+        if (running == 0) return;
+        std::this_thread::yield();
+      }
+      sum += v.i;
+    }
+  };
+
+  std::vector<std::thread> prods(np);
+  for (std::size_t n = 0; n < np; ++n) prods[n] = std::thread(prod_call, n);
+  std::vector<std::thread> conss(nc);
+  for (auto &c : conss) c = std::thread(cons_call);
+
+  for (auto &p : prods) p.join();
+  for (auto &c : conss) c.join();
+
+  EXPECT_EQ(sum, np * (loop_size * std::uint64_t(loop_size + 1)) / 2);
 }
 
-} // namespace
+} // namespace
+
+TEST(queue, multi_thread) {
+  using namespace concur;
+
+  /// \brief 1-1
+  test_queue<relation::single, relation::single>(1, 1);
+  test_queue<relation::single, relation::multi >(1, 1);
+  test_queue<relation::multi , relation::single>(1, 1);
+  test_queue<relation::multi , relation::multi >(1, 1);
+
+  /// \brief 8-1
+  test_queue<relation::multi , relation::single>(8, 1);
+  test_queue<relation::multi , relation::multi >(8, 1);
+
+  /// \brief 1-8
+  test_queue<relation::single, relation::multi >(1, 8);
+  test_queue<relation::multi , relation::multi >(1, 8);
+
+  /// \brief 8-8
+  test_queue<relation::multi , relation::multi >(8, 8);
+}