},
};
-/*
- * The ->event() hook is called to match an event number with an io_u.
- * After the core has called ->getevents() and it has returned eg 3,
- * the ->event() hook must return the 3 events that have completed for
- * subsequent calls to ->event() with [0-2]. Required.
- */
static struct io_u *fio_libnfs_event(struct thread_data *td, int event)
{
struct fio_libnfs_options *o = td->eo;
#undef SHOULD_WAIT
}
-/*
- * The ->getevents() hook is used to reap completion events from an async
- * io engine. It returns the number of completed events since the last call,
- * which may then be retrieved by calling the ->event() hook with the event
- * numbers. Required.
- */
static int fio_libnfs_getevents(struct thread_data *td, unsigned int min,
unsigned int max, const struct timespec *t)
{
return nfs_pread_async(o->context, nfs_data->nfsfh, io_u->offset, io_u->buflen, nfs_callback, io_u);
}
-/*
- * The ->queue() hook is responsible for initiating io on the io_u
- * being passed in. If the io engine is a synchronous one, io may complete
- * before ->queue() returns. Required.
- *
- * The io engine must transfer in the direction noted by io_u->ddir
- * to the buffer pointed to by io_u->xfer_buf for as many bytes as
- * io_u->xfer_buflen. Residual data count may be set in io_u->resid
- * for a short read/write.
- */
static enum fio_q_status fio_libnfs_queue(struct thread_data *td,
struct io_u *io_u)
{
return ret;
}
-/** Do a mount if one has not been done before */
+/*
+ * Do a mount if one has not been done before
+ */
static int do_mount(struct thread_data *td, const char *url)
{
size_t event_size = sizeof(struct io_u **) * td->o.iodepth;
return ret;
}
-/*
- * The init function is called once per thread/process, and should set up
- * any structures that this io engine requires to keep track of io. Not
- * required.
- */
static int fio_libnfs_setup(struct thread_data *td)
{
/* Using threads with libnfs causes fio to hang on exit, lower performance */
return 0;
}
-/*
- * This is paired with the ->init() function and is called when a thread is
- * done doing io. Should tear down anything setup by the ->init() function.
- * Not required.
- */
static void fio_libnfs_cleanup(struct thread_data *td)
{
struct fio_libnfs_options *o = td->eo;
return ret;
}
-/*
- * Hook for writing out outstanding data.
- */
-static int fio_libnfs_commit(struct thread_data *td) {
- nfs_event_loop(td, true);
- return 0;
-}
-
struct ioengine_ops ioengine = {
.name = "nfs",
.version = FIO_IOOPS_VERSION,
.cleanup = fio_libnfs_cleanup,
.open_file = fio_libnfs_open,
.close_file = fio_libnfs_close,
- .commit = fio_libnfs_commit,
.flags = FIO_DISKLESSIO | FIO_NOEXTEND | FIO_NODISKUTIL,
.options = options,
.option_struct_size = sizeof(struct fio_libnfs_options),
{
unregister_ioengine(&ioengine);
}
-