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 */
36 FIO_FILE_smalloc = 1 << 9, /* smalloc file/file_name */
46 * How fio chooses what file to service next. Choice of uniformly random, or
47 * some skewed random variants, or just sequentially go through them or
51 FIO_FSERVICE_RANDOM = 1,
54 __FIO_FSERVICE_NONUNIFORM = 0x100,
55 FIO_FSERVICE_ZIPF = __FIO_FSERVICE_NONUNIFORM | 4,
56 FIO_FSERVICE_PARETO = __FIO_FSERVICE_NONUNIFORM | 5,
57 FIO_FSERVICE_GAUSS = __FIO_FSERVICE_NONUNIFORM | 6,
59 FIO_FSERVICE_SHIFT = 10,
63 * No pre-allocation when laying down files, or call posix_fallocate(), or
64 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
66 enum fio_fallocate_mode {
67 FIO_FALLOCATE_NONE = 1,
68 FIO_FALLOCATE_POSIX = 2,
69 FIO_FALLOCATE_KEEP_SIZE = 3,
70 FIO_FALLOCATE_NATIVE = 4,
71 FIO_FALLOCATE_TRUNCATE = 5,
75 * Each thread_data structure has a number of files associated with it,
76 * this structure holds state information for a single file.
79 struct flist_head hash_list;
80 enum fio_filetype filetype;
90 * filename and possible memory mapping
92 unsigned int major, minor;
97 * size of the file, offset into file, and io size from that offset
98 * (be aware io_size is different from thread_options::io_size)
100 uint64_t real_file_size;
101 uint64_t file_offset;
105 * Zoned block device information. See also zonemode=zbd.
107 struct zoned_block_device_info *zbd_info;
108 /* zonemode=zbd working area */
109 uint32_t min_zone; /* inclusive */
110 uint32_t max_zone; /* exclusive */
113 * Track last end and last start of IO for a given data direction
115 uint64_t last_pos[DDIR_RWDIR_CNT];
116 uint64_t last_start[DDIR_RWDIR_CNT];
118 uint64_t first_write;
122 * Tracks the last iodepth number of completed writes, if data
123 * verification is enabled
125 uint64_t *last_write_comp;
126 unsigned int last_write_idx;
129 * For use by the io engine to store offset
134 * For use by the io engine for private data storage
139 * if io is protected by a semaphore, this is set
142 struct fio_sem *lock;
143 struct fio_rwlock *rwlock;
147 * block map or LFSR for random io
150 struct axmap *io_axmap;
151 struct fio_lfsr lfsr;
155 * Used for zipf random distribution
158 struct zipf_state zipf;
159 struct gauss_state gauss;
163 enum fio_file_flags flags;
165 struct disk_util *du;
168 #define FILE_ENG_DATA(f) ((f)->engine_data)
169 #define FILE_SET_ENG_DATA(f, data) ((f)->engine_data = (data))
171 #define FILE_FLAG_FNS(name) \
172 static inline void fio_file_set_##name(struct fio_file *f) \
174 (f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name); \
176 static inline void fio_file_clear_##name(struct fio_file *f) \
178 (f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name); \
180 static inline int fio_file_##name(struct fio_file *f) \
182 return ((f)->flags & FIO_FILE_##name) != 0; \
186 FILE_FLAG_FNS(closing);
187 FILE_FLAG_FNS(extend);
189 FILE_FLAG_FNS(size_known);
190 FILE_FLAG_FNS(hashed);
191 FILE_FLAG_FNS(partial_mmap);
192 FILE_FLAG_FNS(axmap);
194 FILE_FLAG_FNS(smalloc);
198 * File setup/shutdown
201 extern void close_files(struct thread_data *);
202 extern void close_and_free_files(struct thread_data *);
203 extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
204 extern int __must_check setup_shared_file(struct thread_data *);
205 extern int __must_check setup_files(struct thread_data *);
206 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
210 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
211 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
212 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
213 extern int __must_check generic_prepopulate_file(struct thread_data *, struct fio_file *);
217 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
218 extern bool __must_check pre_read_files(struct thread_data *);
219 extern unsigned long long get_rand_file_size(struct thread_data *td);
220 extern int add_file(struct thread_data *, const char *, int, int);
221 extern int add_file_exclusive(struct thread_data *, const char *);
222 extern void get_file(struct fio_file *);
223 extern int __must_check put_file(struct thread_data *, struct fio_file *);
224 extern void put_file_log(struct thread_data *, struct fio_file *);
225 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
226 extern void unlock_file(struct thread_data *, struct fio_file *);
227 extern void unlock_file_all(struct thread_data *, struct fio_file *);
228 extern int add_dir_files(struct thread_data *, const char *);
229 extern bool init_random_map(struct thread_data *);
230 extern void dup_files(struct thread_data *, struct thread_data *);
231 extern int get_fileno(struct thread_data *, const char *);
232 extern void free_release_files(struct thread_data *);
233 extern void filesetup_mem_free(void);
234 extern void fio_file_reset(struct thread_data *, struct fio_file *);
235 extern bool fio_files_done(struct thread_data *);
236 extern bool exists_and_not_regfile(const char *);
237 extern int fio_set_directio(struct thread_data *, struct fio_file *);
238 extern void fio_file_free(struct fio_file *);