C++ (Cpp) glfs_fsync_async示例

示例#1

文件： gluster.c 项目： NormanM/qemu

static BlockDriverAIOCB *qemu_gluster_aio_flush(BlockDriverState *bs,
        BlockDriverCompletionFunc *cb, void *opaque)
{
    int ret;
    GlusterAIOCB *acb;
    BDRVGlusterState *s = bs->opaque;

    acb = qemu_aio_get(&gluster_aiocb_info, bs, cb, opaque);
    acb->size = 0;
    acb->ret = 0;
    acb->finished = NULL;

    ret = glfs_fsync_async(s->fd, &gluster_finish_aiocb, acb);
    if (ret < 0) {
        goto out;
    }
    return &acb->common;

out:
    qemu_aio_release(acb);
    return NULL;
}

示例#2

文件： gluster.c 项目： Annovae/qemu

static coroutine_fn int qemu_gluster_co_flush_to_disk(BlockDriverState *bs)
{
    int ret;
    GlusterAIOCB *acb = g_slice_new(GlusterAIOCB);
    BDRVGlusterState *s = bs->opaque;

    acb->size = 0;
    acb->ret = 0;
    acb->coroutine = qemu_coroutine_self();

    ret = glfs_fsync_async(s->fd, &gluster_finish_aiocb, acb);
    if (ret < 0) {
        ret = -errno;
        goto out;
    }

    qemu_coroutine_yield();
    ret = acb->ret;

out:
    g_slice_free(GlusterAIOCB, acb);
    return ret;
}