5 #include "compiler/compiler.h"
13 * The type of object we are working on
16 FIO_TYPE_FILE = 1, /* plain file */
17 FIO_TYPE_BD, /* block device */
18 FIO_TYPE_CHAR, /* character device */
19 FIO_TYPE_PIPE, /* pipe */
23 FIO_FILE_open = 1 << 0, /* file is open */
24 FIO_FILE_closing = 1 << 1, /* file being closed */
25 FIO_FILE_extend = 1 << 2, /* needs extend */
26 FIO_FILE_done = 1 << 3, /* io completed to this file */
27 FIO_FILE_size_known = 1 << 4, /* size has been set */
28 FIO_FILE_hashed = 1 << 5, /* file is on hash */
29 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
30 FIO_FILE_axmap = 1 << 7, /* uses axmap */
31 FIO_FILE_lfsr = 1 << 8, /* lfsr is used */
41 * roundrobin available files, or choose one at random, or do each one
45 FIO_FSERVICE_RANDOM = 1,
51 * No pre-allocation when laying down files, or call posix_fallocate(), or
52 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
54 enum fio_fallocate_mode {
55 FIO_FALLOCATE_NONE = 1,
56 FIO_FALLOCATE_POSIX = 2,
57 FIO_FALLOCATE_KEEP_SIZE = 3,
61 * Each thread_data structure has a number of files associated with it,
62 * this structure holds state information for a single file.
65 struct flist_head hash_list;
66 enum fio_filetype filetype;
76 * filename and possible memory mapping
79 unsigned int major, minor;
83 * size of the file, offset into file, and io size from that offset
85 uint64_t real_file_size;
90 * Track last end and last start of IO for a given data direction
92 uint64_t last_pos[DDIR_RWDIR_CNT];
93 uint64_t last_start[DDIR_RWDIR_CNT];
99 * For use by the io engine
101 uint64_t engine_data;
104 * if io is protected by a semaphore, this is set
107 struct fio_mutex *lock;
108 struct fio_rwlock *rwlock;
112 * block map or LFSR for random io
115 struct axmap *io_axmap;
116 struct fio_lfsr lfsr;
120 * Used for zipf random distribution
122 struct zipf_state zipf;
125 enum fio_file_flags flags;
127 struct disk_util *du;
130 #define FILE_ENG_DATA(f) ((void *) (uintptr_t) (f)->engine_data)
131 #define FILE_SET_ENG_DATA(f, data) \
132 ((f)->engine_data = (uintptr_t) (data))
135 struct flist_head list;
139 #define FILE_FLAG_FNS(name) \
140 static inline void fio_file_set_##name(struct fio_file *f) \
142 (f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name); \
144 static inline void fio_file_clear_##name(struct fio_file *f) \
146 (f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name); \
148 static inline int fio_file_##name(struct fio_file *f) \
150 return ((f)->flags & FIO_FILE_##name) != 0; \
154 FILE_FLAG_FNS(closing);
155 FILE_FLAG_FNS(extend);
157 FILE_FLAG_FNS(size_known);
158 FILE_FLAG_FNS(hashed);
159 FILE_FLAG_FNS(partial_mmap);
160 FILE_FLAG_FNS(axmap);
165 * File setup/shutdown
168 extern void close_files(struct thread_data *);
169 extern void close_and_free_files(struct thread_data *);
170 extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
171 extern int __must_check setup_files(struct thread_data *);
172 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
173 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
174 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
175 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
176 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
177 extern int __must_check pre_read_files(struct thread_data *);
178 extern int add_file(struct thread_data *, const char *, int, int);
179 extern int add_file_exclusive(struct thread_data *, const char *);
180 extern void get_file(struct fio_file *);
181 extern int __must_check put_file(struct thread_data *, struct fio_file *);
182 extern void put_file_log(struct thread_data *, struct fio_file *);
183 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
184 extern void unlock_file(struct thread_data *, struct fio_file *);
185 extern void unlock_file_all(struct thread_data *, struct fio_file *);
186 extern int add_dir_files(struct thread_data *, const char *);
187 extern int init_random_map(struct thread_data *);
188 extern void dup_files(struct thread_data *, struct thread_data *);
189 extern int get_fileno(struct thread_data *, const char *);
190 extern void free_release_files(struct thread_data *);
191 extern void filesetup_mem_free(void);
192 void fio_file_reset(struct thread_data *, struct fio_file *);
193 int fio_files_done(struct thread_data *);