From 89f1c684d73ce275671f2cf5c312dd75af1f18d8 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Wed, 21 Oct 2020 03:39:05 +0300
Subject: add Shared{Memory,Object} classes

---
 test/unit_tests/shmem.cpp | 72 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 test/unit_tests/shmem.cpp

(limited to 'test/unit_tests')

diff --git a/test/unit_tests/shmem.cpp b/test/unit_tests/shmem.cpp
new file mode 100644
index 0000000..26f1389
--- /dev/null
+++ b/test/unit_tests/shmem.cpp
@@ -0,0 +1,72 @@
+// Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "winapi-common" project.
+// For details, see https://github.com/egor-tensin/winapi-common.
+// Distributed under the MIT License.
+
+#include <winapi/shmem.hpp>
+
+#include <boost/config.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <condition_variable>
+#include <mutex>
+#include <thread>
+
+using namespace winapi;
+
+namespace {
+
+BOOST_CONSTEXPR_OR_CONST auto shmem_name = "test-data-struct";
+
+BOOST_CONSTEXPR_OR_CONST int main_data = -1;
+BOOST_CONSTEXPR_OR_CONST int setter1_data = 69;
+BOOST_CONSTEXPR_OR_CONST int setter2_data = 420;
+
+struct DataStruct {
+    std::mutex mtx;
+    std::condition_variable cv;
+    int data;
+};
+
+void setter1_main() {
+    const auto data_struct = SharedObject<DataStruct>::open(shmem_name);
+    std::unique_lock<std::mutex> lck{data_struct->mtx};
+    BOOST_TEST_MESSAGE(data_struct.ptr());
+
+    data_struct->cv.wait(lck, [&]() { return data_struct->data == main_data; });
+    data_struct->data = setter1_data;
+    data_struct->cv.notify_all();
+}
+
+void setter2_main() {
+    auto data_struct = SharedObject<DataStruct>::open(shmem_name);
+    std::unique_lock<std::mutex> lck{data_struct->mtx};
+    BOOST_TEST_MESSAGE(data_struct.ptr());
+
+    data_struct->cv.wait(lck, [&]() { return data_struct->data == setter1_data; });
+    data_struct->data = setter2_data;
+    data_struct->cv.notify_all();
+}
+
+} // namespace
+
+BOOST_AUTO_TEST_SUITE(shmem_tests)
+
+BOOST_AUTO_TEST_CASE(basic) {
+    auto data_struct = SharedObject<DataStruct>::create(shmem_name);
+
+    std::thread setter1{&setter1_main};
+    std::thread setter2{&setter2_main};
+    {
+        std::lock_guard<std::mutex> lck{data_struct->mtx};
+        data_struct->data = main_data;
+    }
+    data_struct->cv.notify_all();
+
+    setter1.join();
+    setter2.join();
+
+    BOOST_TEST(data_struct->data == setter2_data);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
-- 
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