Constify 'td' in a few functions

[fio.git] / ioengine.h

diff --git a/ioengine.h b/ioengine.h
index 31662ebeb5eea6af9012d921a9ce368cb0551a8e..0742a8b96753c3bf79edb431c2bd63ee27a46df2 100644 (file)
--- a/ioengine.h
+++ b/ioengine.h
@@ -15,12 +15,12 @@
 #include <guasi.h>
 #endif
 
-#define FIO_IOOPS_VERSION      16
+#define FIO_IOOPS_VERSION      20
 
 enum {
        IO_U_F_FREE             = 1 << 0,
        IO_U_F_FLIGHT           = 1 << 1,
-       IO_U_F_FREE_DEF         = 1 << 2,
+       IO_U_F_NO_FILE_PUT      = 1 << 2,
        IO_U_F_IN_CUR_DEPTH     = 1 << 3,
        IO_U_F_BUSY_OK          = 1 << 4,
        IO_U_F_TRIMMED          = 1 << 5,
@@ -50,12 +50,13 @@ struct io_u {
         */
        unsigned long buflen;
        unsigned long long offset;
+       unsigned short numberio;
        void *buf;
 
        /*
         * Initial seed for generating the buffer contents
         */
-       unsigned long rand_seed;
+       uint64_t rand_seed;
 
        /*
         * IO engine state, may be different from above when we get
@@ -70,6 +71,27 @@ struct io_u {
         */
        unsigned long buf_filled_len;
 
+       struct io_piece *ipo;
+
+       unsigned int resid;
+       unsigned int error;
+
+       /*
+        * io engine private data
+        */
+       union {
+               unsigned int index;
+               unsigned int seen;
+               void *engine_data;
+       };
+
+       struct flist_head verify_list;
+
+       /*
+        * Callback for io completion
+        */
+       int (*end_io)(struct thread_data *, struct io_u **);
+
        union {
 #ifdef CONFIG_LIBAIO
                struct iocb iocb;
@@ -94,25 +116,6 @@ struct io_u {
 #endif
                void *mmap_data;
        };
-
-       unsigned int resid;
-       unsigned int error;
-
-       /*
-        * io engine private data
-        */
-       union {
-               unsigned int index;
-               unsigned int seen;
-               void *engine_data;
-       };
-
-       struct flist_head verify_list;
-
-       /*
-        * Callback for io completion
-        */
-       int (*end_io)(struct thread_data *, struct io_u *);
 };
 
 /*
@@ -140,6 +143,8 @@ struct ioengine_ops {
        void (*cleanup)(struct thread_data *);
        int (*open_file)(struct thread_data *, struct fio_file *);
        int (*close_file)(struct thread_data *, struct fio_file *);
+       int (*invalidate)(struct thread_data *, struct fio_file *);
+       int (*unlink_file)(struct thread_data *, struct fio_file *);
        int (*get_file_size)(struct thread_data *, struct fio_file *);
        void (*terminate)(struct thread_data *);
        int (*io_u_init)(struct thread_data *, struct io_u *);
@@ -162,8 +167,14 @@ enum fio_ioengine_flags {
        FIO_BARRIER     = 1 << 8,       /* engine supports barriers */
        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 */
 };
 
+/*
+ * External engine defined symbol to fill in the engine ops structure
+ */
+typedef void (*get_ioengine_t)(struct ioengine_ops **);
+
 /*
  * io engine entry points
  */
@@ -175,6 +186,7 @@ extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsi
 extern int __must_check 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 *);
 extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_file *);
 
 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
@@ -188,7 +200,6 @@ extern int fio_show_ioengine_help(const char *engine);
 /*
  * io unit handling
  */
-#define queue_full(td) io_u_qempty(&(td)->io_u_freelist)
 extern struct io_u *__get_io_u(struct thread_data *);
 extern struct io_u *get_io_u(struct thread_data *);
 extern void put_io_u(struct thread_data *, struct io_u *);
@@ -204,9 +215,10 @@ extern void fill_io_buffer(struct thread_data *, void *, unsigned int, unsigned
 extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int, unsigned int);
 void io_u_mark_complete(struct thread_data *, unsigned int);
 void io_u_mark_submit(struct thread_data *, unsigned int);
+int queue_full(const struct thread_data *);
 
-int do_io_u_sync(struct thread_data *, struct io_u *);
-int do_io_u_trim(struct thread_data *, struct io_u *);
+int do_io_u_sync(const struct thread_data *, struct io_u *);
+int do_io_u_trim(const struct thread_data *, struct io_u *);
 
 #ifdef FIO_INC_DEBUG
 static inline void dprint_io_u(struct io_u *io_u, const char *p)