chore: import upstream snapshot with attribution

2026-07-13 12:47:42 +08:00
commit be3ef883e1
1214 changed files with 431743 additions and 0 deletions
@@ -0,0 +1,45 @@
+// Copyright 2025-present the zvec project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <gtest/gtest.h>
+#include <zvec/ailego/parallel/thread_pool.h>
+#include <zvec/ailego/pattern/singleton.h>
+
+using namespace zvec::ailego;
+
+struct AAA {
+  void run() {
+    ++a;
+  }
+  uint32_t val() {
+    return a;
+  }
+  std::atomic_uint a{0};
+};
+
+TEST(Singleton, General) {
+  Singleton<int>::Instance() = 15;
+  EXPECT_EQ(15, Singleton<int>::Instance());
+
+  Singleton<double>::Instance() = 1.2;
+  EXPECT_DOUBLE_EQ(1.2, Singleton<double>::Instance());
+
+  ThreadPool pool1;
+  for (int i = 0; i < 1000; ++i) {
+    pool1.execute([] { Singleton<AAA>::Instance().run(); });
+  }
+  pool1.wait_finish();
+
+  EXPECT_EQ(1000u, Singleton<AAA>::Instance().val());
+}