yield.hpp

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#pragma once
 
#include <yaclib/coro/coro.hpp>
#include <yaclib/exe/executor.hpp>
 
namespace yaclib {
namespace detail {
 
class [[nodiscard]] Yield final {
 public:
  constexpr bool await_ready() const noexcept {
    return false;
  }
 
  template <typename Promise>
  YACLIB_INLINE void await_suspend(yaclib_std::coroutine_handle<Promise> handle) const noexcept {
    auto& promise = handle.promise();
    YACLIB_ASSERT(promise._executor != nullptr);
    promise._executor->Submit(promise);
  }
 
  constexpr void await_resume() const noexcept {
  }
};
 
}  // namespace detail
 
/**
 * Reschedule current job to it executor
 * Useful for timeout checks, or if you job very big and doing only cpu not suspend work
 */
inline constexpr detail::Yield kYield;
 
}  // namespace yaclib