Initial commit: Livox SDK2 source (excluding build artifacts)

sdk_core/base/io_loop.h

@@ -0,0 +1,92 @@
+//
+// The MIT License (MIT)
+//
+// Copyright (c) 2022 Livox. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+
+#ifndef LIVOX_IO_LOOP_H_
+#define LIVOX_IO_LOOP_H_
+
+#include <functional>
+#include <mutex>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+#include <algorithm>
+#include "command_callback.h"
+#include "noncopyable.h"
+#include "thread_base.h"
+#include "multiple_io/multiple_io_base.h"
+#include "multiple_io/multiple_io_factory.h"
+
+namespace livox {
+namespace lidar {
+
+#define OPEN_MAX_POLL 48
+#define POLL_TIMEOUT 50 //ms
+typedef int socket_t;
+
+class IOLoop : public noncopyable {
+ public:
+ typedef std::function<void(void)> IOLoopTask;
+
+  class IOLoopDelegate {
+   public:
+    virtual void OnData(socket_t, void *) {}
+    virtual void OnTimer(std::chrono::steady_clock::time_point) {}
+    virtual void OnWake() {}
+  };
+
+ public:
+  explicit IOLoop(bool enable_timer = true, bool enable_wake = true)
+      : enable_timer_(enable_timer), enable_wake_(enable_wake){};
+
+
+  bool Init();
+  void Uninit();
+  void AddDelegate(socket_t sock, IOLoopDelegate *delegate, void *data = NULL);
+  void RemoveDelegate(socket_t sock, IOLoopDelegate *delegate);
+  void Loop();
+  bool Wakeup();
+  void PostTask(const IOLoopTask &task);
+
+ private:
+  void AddDelegateAsync(socket_t sock, IOLoopDelegate *delegate, void *data);
+  void RemoveDelegateAsync(socket_t sock);
+
+ private:
+  std::mutex mutex_;
+  bool enable_timer_;
+  bool enable_wake_;
+  std::vector<IOLoopTask> pending_tasks_;
+  std::unique_ptr<MultipleIOBase> multiple_io_base_;
+};
+
+} // namespace lidar
+}  // namespace livox
+
+#endif  // LIVOX_IO_LOOP_H_
+
+
+
+
+
+