* LD_LIBRARY_PATH=./engines ./fio examples/cpp_null.fio
*
*/
-#include <stdio.h>
#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
#include <assert.h>
#include "../fio.h"
return 0;
}
-static int null_queue(struct thread_data *td, struct null_data *nd,
- struct io_u *io_u)
+static enum fio_q_status null_queue(struct thread_data *td,
+ struct null_data *nd, struct io_u *io_u)
{
fio_ro_check(td, io_u);
}
}
-static int null_init(struct thread_data *td, struct null_data **nd_ptr)
+static struct null_data *null_init(struct thread_data *td)
{
- struct null_data *nd = (struct null_data *) malloc(sizeof(**nd_ptr));
+ struct null_data *nd = (struct null_data *) malloc(sizeof(*nd));
memset(nd, 0, sizeof(*nd));
} else
td->io_ops->flags |= FIO_SYNCIO;
- *nd_ptr = nd;
- return 0;
+ return nd;
}
#ifndef __cplusplus
static struct io_u *fio_null_event(struct thread_data *td, int event)
{
- return null_event((struct null_data *)td->io_ops_data, event);
+ return null_event(td->io_ops_data, event);
}
static int fio_null_getevents(struct thread_data *td, unsigned int min_events,
unsigned int max, const struct timespec *t)
{
- struct null_data *nd = (struct null_data *)td->io_ops_data;
+ struct null_data *nd = td->io_ops_data;
return null_getevents(nd, min_events, max, t);
}
static int fio_null_commit(struct thread_data *td)
{
- return null_commit(td, (struct null_data *)td->io_ops_data);
+ return null_commit(td, td->io_ops_data);
}
-static int fio_null_queue(struct thread_data *td, struct io_u *io_u)
+static enum fio_q_status fio_null_queue(struct thread_data *td,
+ struct io_u *io_u)
{
- return null_queue(td, (struct null_data *)td->io_ops_data, io_u);
+ return null_queue(td, td->io_ops_data, io_u);
}
static int fio_null_open(struct thread_data *td, struct fio_file *f)
{
- return null_open((struct null_data *)td->io_ops_data, f);
+ return null_open(td->io_ops_data, f);
}
static void fio_null_cleanup(struct thread_data *td)
{
- null_cleanup((struct null_data *)td->io_ops_data);
+ null_cleanup(td->io_ops_data);
}
static int fio_null_init(struct thread_data *td)
{
- return null_init(td, (struct null_data **)&td->io_ops_data);
+ td->io_ops_data = null_init(td);
+ assert(td->io_ops_data);
+ return 0;
}
static struct ioengine_ops ioengine = {
struct NullData {
NullData(struct thread_data *td)
{
- null_init(td, &impl_);
+ impl_ = null_init(td);
+ assert(impl_);
}
~NullData()
return null_open(impl_, f);
}
+private:
struct null_data *impl_;
};