Using aiowrite()

The aiowrite() command routine is the asynchronous version of write(). In addition to the normal write arguments, aiowrite() command takes arguments that specify a file position and the address of an aio_result_t structure. The resulting information about the operation is stored in the aio_result_t structure.

The file position specifies that a seek operation is to be performed within the file before the operation. If the call succeeds, the file pointer is updated to the position that would have resulted in a successful seek and write. The file pointer is also updated when a write fails to allow for subsequent write requests.