Visible to Intel only — GUID: GUID-72FAE5C1-DAE0-4C01-948E-4021C1734B64
Visible to Intel only — GUID: GUID-72FAE5C1-DAE0-4C01-948E-4021C1734B64
<span class='option'>aio_write</span>
Performs an asynchronous write operation.
int aio_write(struct aiocb *aiocbp); |
The aio_write() function requests an asynchronous write operation, calling the function,
"WriteFile(hFile, lpBuffer, nNumberOfBytesToWrite, lpNumberOfBytesWritten, NULL);
where,
- hFile is given by aiocbp->aio_fildes
- lpBuffer is given by aiocbp->aio_buf
- nNumberOfBytesToWrite is given by aiocbp->aio_nbytes
Use the function aio_return() to retrieve the actual bytes written in lpNumberOfBytesWritten.
Use the extension aiocb->aio_offset == (intptr_t)-1 to start the write operation after the last written record. This extension avoids extra file positioning and enhances performance.
0: On success
-1: On error
To get the correct error code, use errno. To get the error that occurred during asynchronous write operation, use aio_error() function.