Merge branch 'dev' of https://github.com/smartxworks/fio

[fio.git] / file.h

diff --git a/file.h b/file.h
index a631766488fca12fbe40934def5d258f835d8f21..e50c0f9c3fac752455bfbe74701fd86b04b844ad 100644 (file)
--- a/file.h
+++ b/file.h
@@ -10,12 +10,15 @@
 #include "lib/lfsr.h"
 #include "lib/gauss.h"
 
+/* Forward declarations */
+struct zoned_block_device_info;
+
 /*
  * The type of object we are working on
  */
 enum fio_filetype {
        FIO_TYPE_FILE = 1,              /* plain file */
-       FIO_TYPE_BD,                    /* block device */
+       FIO_TYPE_BLOCK,                 /* block device */
        FIO_TYPE_CHAR,                  /* character device */
        FIO_TYPE_PIPE,                  /* pipe */
 };
@@ -39,13 +42,20 @@ enum file_lock_mode {
 };
 
 /*
- * roundrobin available files, or choose one at random, or do each one
- * serially.
+ * How fio chooses what file to service next. Choice of uniformly random, or
+ * some skewed random variants, or just sequentially go through them or
+ * roundrobing.
  */
 enum {
-       FIO_FSERVICE_RANDOM     = 1,
-       FIO_FSERVICE_RR         = 2,
-       FIO_FSERVICE_SEQ        = 3,
+       FIO_FSERVICE_RANDOM             = 1,
+       FIO_FSERVICE_RR                 = 2,
+       FIO_FSERVICE_SEQ                = 3,
+       __FIO_FSERVICE_NONUNIFORM       = 0x100,
+       FIO_FSERVICE_ZIPF               = __FIO_FSERVICE_NONUNIFORM | 4,
+       FIO_FSERVICE_PARETO             = __FIO_FSERVICE_NONUNIFORM | 5,
+       FIO_FSERVICE_GAUSS              = __FIO_FSERVICE_NONUNIFORM | 6,
+
+       FIO_FSERVICE_SHIFT              = 10,
 };
 
 /*
@@ -56,6 +66,7 @@ enum fio_fallocate_mode {
        FIO_FALLOCATE_NONE      = 1,
        FIO_FALLOCATE_POSIX     = 2,
        FIO_FALLOCATE_KEEP_SIZE = 3,
+       FIO_FALLOCATE_NATIVE    = 4,
 };
 
 /*
@@ -78,16 +89,21 @@ struct fio_file {
         */
        unsigned int major, minor;
        int fileno;
-       int bs;
        char *file_name;
 
        /*
         * size of the file, offset into file, and io size from that offset
+        * (be aware io_size is different from thread_options::io_size)
         */
        uint64_t real_file_size;
        uint64_t file_offset;
        uint64_t io_size;
 
+       /*
+        * Zoned block device information. See also zonemode=zbd.
+        */
+       struct zoned_block_device_info *zbd_info;
+
        /*
         * Track last end and last start of IO for a given data direction
         */
@@ -98,15 +114,25 @@ struct fio_file {
        uint64_t last_write;
 
        /*
-        * For use by the io engine
+        * Tracks the last iodepth number of completed writes, if data
+        * verification is enabled
+        */
+       uint64_t *last_write_comp;
+       unsigned int last_write_idx;
+
+       /*
+        * For use by the io engine for offset or private data storage
         */
-       uint64_t engine_data;
+       union {
+               uint64_t engine_pos;
+               void *engine_data;
+       };
 
        /*
         * if io is protected by a semaphore, this is set
         */
        union {
-               struct fio_mutex *lock;
+               struct fio_sem *lock;
                struct fio_rwlock *rwlock;
        };
 
@@ -132,14 +158,8 @@ struct fio_file {
        struct disk_util *du;
 };
 
-#define FILE_ENG_DATA(f)       ((void *) (uintptr_t) (f)->engine_data)
-#define FILE_SET_ENG_DATA(f, data)     \
-       ((f)->engine_data = (uintptr_t) (data))
-
-struct file_name {
-       struct flist_head list;
-       char *filename;
-};
+#define FILE_ENG_DATA(f)               ((f)->engine_data)
+#define FILE_SET_ENG_DATA(f, data)     ((f)->engine_data = (data))
 
 #define FILE_FLAG_FNS(name)                                            \
 static inline void fio_file_set_##name(struct fio_file *f)             \
@@ -175,11 +195,17 @@ extern void close_and_free_files(struct thread_data *);
 extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
 extern int __must_check setup_files(struct thread_data *);
 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
+#ifdef __cplusplus
+extern "C" {
+#endif
 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
+#ifdef __cplusplus
+}
+#endif
 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
-extern int __must_check pre_read_files(struct thread_data *);
+extern bool __must_check pre_read_files(struct thread_data *);
 extern unsigned long long get_rand_file_size(struct thread_data *td);
 extern int add_file(struct thread_data *, const char *, int, int);
 extern int add_file_exclusive(struct thread_data *, const char *);
@@ -190,12 +216,14 @@ extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
 extern void unlock_file(struct thread_data *, struct fio_file *);
 extern void unlock_file_all(struct thread_data *, struct fio_file *);
 extern int add_dir_files(struct thread_data *, const char *);
-extern int init_random_map(struct thread_data *);
+extern bool init_random_map(struct thread_data *);
 extern void dup_files(struct thread_data *, struct thread_data *);
 extern int get_fileno(struct thread_data *, const char *);
 extern void free_release_files(struct thread_data *);
 extern void filesetup_mem_free(void);
-void fio_file_reset(struct thread_data *, struct fio_file *);
-int fio_files_done(struct thread_data *);
+extern void fio_file_reset(struct thread_data *, struct fio_file *);
+extern bool fio_files_done(struct thread_data *);
+extern bool exists_and_not_regfile(const char *);
+extern int fio_set_directio(struct thread_data *, struct fio_file *);
 
 #endif