chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
7394 changed files with 2005594 additions and 0 deletions
@@ -0,0 +1,75 @@
+/* ******************************************************************************
+ *
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ *  See the NOTICE file distributed with this work for additional
+ *  information regarding copyright ownership.
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+//
+// @author raver119@gmail.com
+//
+#include <execution/BlockingQueue.h>
+#include <execution/CallableWithArguments.h>
+
+#include <thread>
+
+namespace samediff {
+template <typename T>
+BlockingQueue<T>::BlockingQueue(int queueSize) {
+  _size = 0;
+  _available = true;
+}
+
+template <typename T>
+T BlockingQueue<T>::poll() {
+  // locking untill there's something within queue
+  std::unique_lock<std::mutex> lock(_lock);
+  _condition.wait(lock, [&] { return this->_size.load() != 0; });
+
+  T t(std::move(_queue.front()));
+  _queue.pop();
+  _size--;
+  return t;
+}
+
+template <typename T>
+void BlockingQueue<T>::put(const T &t) {
+  {
+    // locking before push, unlocking after
+    std::unique_lock<std::mutex> lock(_lock);
+    _queue.push(t);
+    _size++;
+  }
+
+  // notifying condition
+  _condition.notify_one();
+}
+
+template <typename T>
+bool BlockingQueue<T>::available() {
+  return _available.load();
+}
+
+template <typename T>
+void BlockingQueue<T>::markAvailable() {
+  _available = true;
+}
+
+template <typename T>
+void BlockingQueue<T>::markUnavailable() {
+  _available = false;
+}
+
+template class BlockingQueue<CallableWithArguments *>;
+}  // namespace samediff