asio C++ library


Object HANDLEs

Asio provides Windows-specific classes that permit asynchronous wait operations to be performed on HANDLEs to kernel objects of the following types:

For example, to perform asynchronous operations on an event, the following object may be created:

HANDLE handle = ::CreateEvent(...);
windows::object_handle file(my_io_context, handle);

The wait() and async_wait() member functions may then be used to wait until the kernel object is signalled.

See Also



Windows object HANDLEs are only available at compile time when targeting Windows. Programs may test for the macro ASIO_HAS_WINDOWS_OBJECT_HANDLE to determine whether they are supported.