1 files changed, 41 insertions, 0 deletions
diff --git a/src/looper.hh b/src/looper.hh
new file mode 100644
index 0000000..7315220
--- /dev/null
+++ b/src/looper.hh
@@ -0,0 +1,41 @@
+// -*- mode: c++; c-basic-offset: 2; -*-
+
+#ifndef LOOPER_HH
+#define LOOPER_HH
+
+#include <chrono>
+#include <functional>
+
+class Looper {
+public:
+  typedef std::chrono::steady_clock clock;
+  typedef std::function<void(int, uint8_t)> FdCallback;
+  typedef std::function<void(void*)> ScheduleCallback;
+  virtual ~Looper() { }
+
+  static const uint8_t EVENT_READ;
+  static const uint8_t EVENT_WRITE;
+  // Always reported, need not be set
+  static const uint8_t EVENT_HUP;
+  static const uint8_t EVENT_ERROR;
+
+  static Looper* create();
+
+  virtual void add(int fd, uint8_t events, FdCallback const& callback) = 0;
+  virtual void modify(int fd, uint8_t events) = 0;
+  virtual void remove(int fd) = 0;
+
+  virtual void* schedule(float delay_s, ScheduleCallback const& callback) = 0;
+  virtual void cancel(void* handle) = 0;
+
+  virtual bool run() = 0;
+  virtual void quit() = 0;
+
+  virtual clock::time_point now() const = 0;
+
+protected:
+  Looper() { }
+  Looper(Looper const&) = delete;
+};
+
+#endif  // LOOPER_HH