gloomycoder
diff --git a/‎include/cppcoro/detail/win32.hpp
Lines changed: 25 additions & 0 deletions b/‎include/cppcoro/detail/win32.hpp
Lines changed: 25 additions & 0 deletions
@@ -14,6 +14,8 @@
 #include <utility>
 #include <cstdint>
 
+struct _OVERLAPPED;
+
 namespace cppcoro
 {
 	namespace detail
@@ -68,6 +70,29 @@ namespace cppcoro
 					win32::dword_t numberOfBytesTransferred,
 					win32::ulongptr_t completionKey);
 
+				io_state(callback_type* callback = nullptr) noexcept
+					: io_state(std::uint64_t(0), callback)
+				{}
+
+				io_state(void* pointer, callback_type* callback) noexcept
+					: m_callback(callback)
+				{
+					this->Internal = 0;
+					this->InternalHigh = 0;
+					this->Pointer = pointer;
+					this->hEvent = nullptr;
+				}
+
+				io_state(std::uint64_t offset, callback_type* callback) noexcept
+					: m_callback(callback)
+				{
+					this->Internal = 0;
+					this->InternalHigh = 0;
+					this->Offset = static_cast<dword_t>(offset);
+					this->OffsetHigh = static_cast<dword_t>(offset >> 32);
+					this->hEvent = nullptr;
+				}
+
 				callback_type* m_callback;
 			};