5 #include "compiler/compiler.h"
11 #include "lib/gauss.h"
13 /* Forward declarations */
14 struct zoned_block_device_info;
17 * The type of object we are working on
20 FIO_TYPE_FILE = 1, /* plain file */
21 FIO_TYPE_BLOCK, /* block device */
22 FIO_TYPE_CHAR, /* character device */
23 FIO_TYPE_PIPE, /* pipe */
27 FIO_FILE_open = 1 << 0, /* file is open */
28 FIO_FILE_closing = 1 << 1, /* file being closed */
29 FIO_FILE_extend = 1 << 2, /* needs extend */
30 FIO_FILE_done = 1 << 3, /* io completed to this file */
31 FIO_FILE_size_known = 1 << 4, /* size has been set */
32 FIO_FILE_hashed = 1 << 5, /* file is on hash */
33 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
34 FIO_FILE_axmap = 1 << 7, /* uses axmap */
35 FIO_FILE_lfsr = 1 << 8, /* lfsr is used */
45 * How fio chooses what file to service next. Choice of uniformly random, or
46 * some skewed random variants, or just sequentially go through them or
50 FIO_FSERVICE_RANDOM = 1,
53 __FIO_FSERVICE_NONUNIFORM = 0x100,
54 FIO_FSERVICE_ZIPF = __FIO_FSERVICE_NONUNIFORM | 4,
55 FIO_FSERVICE_PARETO = __FIO_FSERVICE_NONUNIFORM | 5,
56 FIO_FSERVICE_GAUSS = __FIO_FSERVICE_NONUNIFORM | 6,
58 FIO_FSERVICE_SHIFT = 10,
62 * No pre-allocation when laying down files, or call posix_fallocate(), or
63 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
65 enum fio_fallocate_mode {
66 FIO_FALLOCATE_NONE = 1,
67 FIO_FALLOCATE_POSIX = 2,
68 FIO_FALLOCATE_KEEP_SIZE = 3,
69 FIO_FALLOCATE_NATIVE = 4,
73 * Each thread_data structure has a number of files associated with it,
74 * this structure holds state information for a single file.
77 struct flist_head hash_list;
78 enum fio_filetype filetype;
88 * filename and possible memory mapping
90 unsigned int major, minor;
92 unsigned long long bs;
96 * size of the file, offset into file, and io size from that offset
97 * (be aware io_size is different from thread_options::io_size)
99 uint64_t real_file_size;
100 uint64_t file_offset;
104 * Zoned block device information. See also zonemode=zbd.
106 struct zoned_block_device_info *zbd_info;
109 * Track last end and last start of IO for a given data direction
111 uint64_t last_pos[DDIR_RWDIR_CNT];
112 uint64_t last_start[DDIR_RWDIR_CNT];
114 uint64_t first_write;
118 * Tracks the last iodepth number of completed writes, if data
119 * verification is enabled
121 uint64_t *last_write_comp;
122 unsigned int last_write_idx;
125 * For use by the io engine for offset or private data storage
133 * if io is protected by a semaphore, this is set
136 struct fio_sem *lock;
137 struct fio_rwlock *rwlock;
141 * block map or LFSR for random io
144 struct axmap *io_axmap;
145 struct fio_lfsr lfsr;
149 * Used for zipf random distribution
152 struct zipf_state zipf;
153 struct gauss_state gauss;
157 enum fio_file_flags flags;
159 struct disk_util *du;
162 #define FILE_ENG_DATA(f) ((f)->engine_data)
163 #define FILE_SET_ENG_DATA(f, data) ((f)->engine_data = (data))
165 #define FILE_FLAG_FNS(name) \
166 static inline void fio_file_set_##name(struct fio_file *f) \
168 (f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name); \
170 static inline void fio_file_clear_##name(struct fio_file *f) \
172 (f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name); \
174 static inline int fio_file_##name(struct fio_file *f) \
176 return ((f)->flags & FIO_FILE_##name) != 0; \
180 FILE_FLAG_FNS(closing);
181 FILE_FLAG_FNS(extend);
183 FILE_FLAG_FNS(size_known);
184 FILE_FLAG_FNS(hashed);
185 FILE_FLAG_FNS(partial_mmap);
186 FILE_FLAG_FNS(axmap);
191 * File setup/shutdown
194 extern void close_files(struct thread_data *);
195 extern void close_and_free_files(struct thread_data *);
196 extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
197 extern int __must_check setup_files(struct thread_data *);
198 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
202 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
203 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
204 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
208 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
209 extern bool __must_check pre_read_files(struct thread_data *);
210 extern unsigned long long get_rand_file_size(struct thread_data *td);
211 extern int add_file(struct thread_data *, const char *, int, int);
212 extern int add_file_exclusive(struct thread_data *, const char *);
213 extern void get_file(struct fio_file *);
214 extern int __must_check put_file(struct thread_data *, struct fio_file *);
215 extern void put_file_log(struct thread_data *, struct fio_file *);
216 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
217 extern void unlock_file(struct thread_data *, struct fio_file *);
218 extern void unlock_file_all(struct thread_data *, struct fio_file *);
219 extern int add_dir_files(struct thread_data *, const char *);
220 extern bool init_random_map(struct thread_data *);
221 extern void dup_files(struct thread_data *, struct thread_data *);
222 extern int get_fileno(struct thread_data *, const char *);
223 extern void free_release_files(struct thread_data *);
224 extern void filesetup_mem_free(void);
225 extern void fio_file_reset(struct thread_data *, struct fio_file *);
226 extern bool fio_files_done(struct thread_data *);
227 extern bool exists_and_not_regfile(const char *);
228 extern int fio_set_directio(struct thread_data *, struct fio_file *);