poll.h

#ifndef UVW_POLL_INCLUDE_H
#define UVW_POLL_INCLUDE_H
 
#include <memory>
#include <type_traits>
#include <uv.h>
#include "config.h"
#include "enum.hpp"
#include "handle.hpp"
#include "util.h"
 
namespace uvw {
 
namespace details {
 
enum class uvw_poll_event : std::underlying_type_t<uv_poll_event> {
    READABLE = UV_READABLE,
    WRITABLE = UV_WRITABLE,
    DISCONNECT = UV_DISCONNECT,
    PRIORITIZED = UV_PRIORITIZED,
    _UVW_ENUM = 0
};
 
}
 
struct poll_event {
    explicit poll_event(details::uvw_poll_event events) noexcept;
 
    details::uvw_poll_event flags;
};
 
class poll_handle final: public handle<poll_handle, uv_poll_t, poll_event> {
    static void start_callback(uv_poll_t *hndl, int status, int events);
 
public:
    using poll_event_flags = details::uvw_poll_event;
 
    explicit poll_handle(loop::token token, std::shared_ptr<loop> ref, int desc);
    explicit poll_handle(loop::token token, std::shared_ptr<loop> ref, os_socket_handle sock);
 
    int init() final;
 
    int start(poll_event_flags flags);
 
    int stop();
 
private:
    enum {
        FD,
        SOCKET
    } tag;
 
    union {
        int file_desc;
        os_socket_handle socket;
    };
};
 
} // namespace uvw
 
#ifndef UVW_AS_LIB
#    include "poll.cpp"
#endif
 
#endif // UVW_POLL_INCLUDE_H