Fio 3.15

[fio.git] / ioengines.h

diff --git a/ioengines.h b/ioengines.h
index 177cbc053c33ba8aedf7dbb092d15bdc92b58ccb..01a9b5860085f13885885edb326bcf8c14d5ccc3 100644 (file)
--- a/ioengines.h
+++ b/ioengines.h
@@ -1,17 +1,18 @@
 #ifndef FIO_IOENGINE_H
 #define FIO_IOENGINE_H
 
+#include <stddef.h>
+
 #include "compiler/compiler.h"
-#include "os/os.h"
-#include "file.h"
+#include "flist.h"
 #include "io_u.h"
 
-#define FIO_IOOPS_VERSION      23
+#define FIO_IOOPS_VERSION      25
 
 /*
  * io_ops->queue() return values
  */
-enum {
+enum fio_q_status {
        FIO_Q_COMPLETED = 0,            /* completed sync */
        FIO_Q_QUEUED    = 1,            /* queued, will complete async */
        FIO_Q_BUSY      = 2,            /* no more room, call ->commit() */
@@ -24,8 +25,9 @@ struct ioengine_ops {
        int flags;
        int (*setup)(struct thread_data *);
        int (*init)(struct thread_data *);
+       int (*post_init)(struct thread_data *);
        int (*prep)(struct thread_data *, struct io_u *);
-       int (*queue)(struct thread_data *, struct io_u *);
+       enum fio_q_status (*queue)(struct thread_data *, struct io_u *);
        int (*commit)(struct thread_data *);
        int (*getevents)(struct thread_data *, unsigned int, unsigned int, const struct timespec *);
        struct io_u *(*event)(struct thread_data *, int);
@@ -59,6 +61,10 @@ enum fio_ioengine_flags {
        FIO_MEMALIGN    = 1 << 9,       /* engine wants aligned memory */
        FIO_BIT_BASED   = 1 << 10,      /* engine uses a bit base (e.g. uses Kbit as opposed to KB) */
        FIO_FAKEIO      = 1 << 11,      /* engine pretends to do IO */
+       FIO_NOSTATS     = 1 << 12,      /* don't do IO stats */
+       FIO_NOFILEHASH  = 1 << 13,      /* doesn't hash the files for lookup later. */
+       FIO_ASYNCIO_SYNC_TRIM
+                       = 1 << 14       /* io engine has async ->queue except for trim */
 };
 
 /*
@@ -71,9 +77,9 @@ typedef void (*get_ioengine_t)(struct ioengine_ops **);
  */
 extern int __must_check td_io_init(struct thread_data *);
 extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
-extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
+extern enum fio_q_status __must_check td_io_queue(struct thread_data *, struct io_u *);
 extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, const struct timespec *);
-extern int __must_check td_io_commit(struct thread_data *);
+extern void td_io_commit(struct thread_data *);
 extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
 extern int td_io_close_file(struct thread_data *, struct fio_file *);
 extern int td_io_unlink_file(struct thread_data *, struct fio_file *);