countdown_event.h

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#pragma once
#include "cancellation_token.h"
#include "wait_handle.h"
#include "../object.h"
#include "../time_span.h"

namespace xtd {
  namespace threading {
    class core_export_ countdown_event : public object {
      struct data;
    public:
      
      explicit countdown_event(int32 initial_count);

      countdown_event();
      countdown_event(countdown_event&&) = default;
      countdown_event(const countdown_event&) = default;
      countdown_event& operator =(const countdown_event& other);
      ~countdown_event();

      
      int32 current_count() const;

      int32 initial_count() const;

      bool is_set() const;
      
      const xtd::threading::wait_handle& wait_handle() const;
      xtd::threading::wait_handle& wait_handle();

      
      void add_count();
      void add_count(int32 count);
      
      void close();

      void reset();
      void reset(int32 count);
      
      bool signal();
      bool signal(int32 signal_count);
      
      bool try_add_count() noexcept;
      bool try_add_count(int32 count) noexcept;

      void wait();
      bool wait(int32 milliseconds_timeout);
      void wait(const cancellation_token& cancellation_token);
      bool wait(const time_span& timeout);
      bool wait(int32 milliseconds_timeout, const cancellation_token& cancellation_token);
      bool wait(const time_span& timeout, const cancellation_token& cancellation_token);

    private:
      std::shared_ptr<data> data_;
      bool wait_wtih_cancellation_token();
      bool wait_wtih_cancellation_token(int32 milliseconds_timeout);
    };
  }
}