Ejemplos de event_notifier_get_handle en C++ (Cpp)

Ejemplo n.º 1

Archivo: win32-aio.c Proyecto: Acidburn0zzz/qemu

BlockDriverAIOCB *win32_aio_submit(BlockDriverState *bs,
        QEMUWin32AIOState *aio, HANDLE hfile,
        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
        BlockDriverCompletionFunc *cb, void *opaque, int type)
{
    struct QEMUWin32AIOCB *waiocb;
    uint64_t offset = sector_num * 512;
    DWORD rc;

    waiocb = qemu_aio_get(&win32_aiocb_info, bs, cb, opaque);
    waiocb->nbytes = nb_sectors * 512;
    waiocb->qiov = qiov;
    waiocb->is_read = (type == QEMU_AIO_READ);

    if (qiov->niov > 1) {
        waiocb->buf = qemu_try_blockalign(bs, qiov->size);
        if (waiocb->buf == NULL) {
            goto out;
        }
        if (type & QEMU_AIO_WRITE) {
            iov_to_buf(qiov->iov, qiov->niov, 0, waiocb->buf, qiov->size);
        }
        waiocb->is_linear = false;
    } else {
        waiocb->buf = qiov->iov[0].iov_base;
        waiocb->is_linear = true;
    }

    memset(&waiocb->ov, 0, sizeof(waiocb->ov));
    waiocb->ov.Offset = (DWORD)offset;
    waiocb->ov.OffsetHigh = (DWORD)(offset >> 32);
    waiocb->ov.hEvent = event_notifier_get_handle(&aio->e);

    aio->count++;

    if (type & QEMU_AIO_READ) {
        rc = ReadFile(hfile, waiocb->buf, waiocb->nbytes, NULL, &waiocb->ov);
    } else {
        rc = WriteFile(hfile, waiocb->buf, waiocb->nbytes, NULL, &waiocb->ov);
    }
    if(rc == 0 && GetLastError() != ERROR_IO_PENDING) {
        goto out_dec_count;
    }
    return &waiocb->common;

out_dec_count:
    aio->count--;
out:
    qemu_aio_release(waiocb);
    return NULL;
}

Ejemplo n.º 2

Archivo: main-loop.c Proyecto: BreakawayConsulting/QEMU

void qemu_fd_register(int fd)
{
    WSAEventSelect(fd, event_notifier_get_handle(&qemu_aio_context->notifier),
                   FD_READ | FD_ACCEPT | FD_CLOSE |
                   FD_CONNECT | FD_WRITE | FD_OOB);
}