Code cleanup: moving poly/ into xenia/base/

src/xenia/base/threading.h

@@ -0,0 +1,73 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2014 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_BASE_THREADING_H_
+#define XENIA_BASE_THREADING_H_
+
+#include <atomic>
+#include <chrono>
+#include <condition_variable>
+#include <cstdint>
+#include <mutex>
+#include <string>
+#include <thread>
+
+namespace xe {
+namespace threading {
+
+class Fence {
+ public:
+  Fence() : signaled_(false) {}
+  void Signal() {
+    std::unique_lock<std::mutex> lock(mutex_);
+    signaled_.store(true);
+    cond_.notify_all();
+  }
+  void Wait() {
+    std::unique_lock<std::mutex> lock(mutex_);
+    while (!signaled_.load()) {
+      cond_.wait(lock);
+    }
+  }
+
+ private:
+  std::mutex mutex_;
+  std::condition_variable cond_;
+  std::atomic<bool> signaled_;
+};
+
+// Gets the current high-performance tick count.
+uint64_t ticks();
+uint64_t ticks_per_second();
+
+// TODO(benvanik): processor info API.
+
+// Gets a stable thread-specific ID, but may not be. Use for informative
+// purposes only.
+uint32_t current_thread_id();
+
+// Sets the current thread name.
+void set_name(const std::string& name);
+// Sets the target thread name.
+void set_name(std::thread::native_handle_type handle, const std::string& name);
+
+// Yields the current thread to the scheduler. Maybe.
+void MaybeYield();
+
+// Sleeps the current thread for at least as long as the given duration.
+void Sleep(std::chrono::microseconds duration);
+template <typename Rep, typename Period>
+void Sleep(std::chrono::duration<Rep, Period> duration) {
+  Sleep(std::chrono::duration_cast<std::chrono::microseconds>(duration));
+}
+
+}  // namespace threading
+}  // namespace xe
+
+#endif  // XENIA_BASE_THREADING_H_