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 */
39 * roundrobin available files, or choose one at random, or do each one
43 FIO_FSERVICE_RANDOM = 1,
49 * No pre-allocation when laying down files, or call posix_fallocate(), or
50 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
52 enum fio_fallocate_mode {
53 FIO_FALLOCATE_NONE = 1,
54 FIO_FALLOCATE_POSIX = 2,
55 FIO_FALLOCATE_KEEP_SIZE = 3,
59 * Each thread_data structure has a number of files associated with it,
60 * this structure holds state information for a single file.
63 struct flist_head hash_list;
64 enum fio_filetype filetype;
74 * filename and possible memory mapping
77 unsigned int major, minor;
85 * size of the file, offset into file, and io size from that offset
87 uint64_t real_file_size;
98 * For use by the io engine
100 uint64_t engine_data;
103 * if io is protected by a semaphore, this is set
106 struct fio_mutex *lock;
107 struct fio_rwlock *rwlock;
111 * block map for random io
113 struct axmap *io_axmap;
115 struct fio_lfsr lfsr;
118 * Used for zipf random distribution
120 struct zipf_state zipf;
123 enum fio_file_flags flags;
125 struct disk_util *du;
128 #define FILE_FLAG_FNS(name) \
129 static inline void fio_file_set_##name(struct fio_file *f) \
131 (f)->flags |= FIO_FILE_##name; \
133 static inline void fio_file_clear_##name(struct fio_file *f) \
135 (f)->flags &= ~FIO_FILE_##name; \
137 static inline int fio_file_##name(struct fio_file *f) \
139 return ((f)->flags & FIO_FILE_##name) != 0; \
143 FILE_FLAG_FNS(closing);
144 FILE_FLAG_FNS(extend);
146 FILE_FLAG_FNS(size_known);
147 FILE_FLAG_FNS(hashed);
148 FILE_FLAG_FNS(partial_mmap);
152 * File setup/shutdown
155 extern void close_files(struct thread_data *);
156 extern void close_and_free_files(struct thread_data *);
157 extern uint64_t get_start_offset(struct thread_data *);
158 extern int __must_check setup_files(struct thread_data *);
159 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
160 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
161 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
162 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
163 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
164 extern int __must_check pre_read_files(struct thread_data *);
165 extern int add_file(struct thread_data *, const char *);
166 extern int add_file_exclusive(struct thread_data *, const char *);
167 extern void get_file(struct fio_file *);
168 extern int __must_check put_file(struct thread_data *, struct fio_file *);
169 extern void put_file_log(struct thread_data *, struct fio_file *);
170 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
171 extern void unlock_file(struct thread_data *, struct fio_file *);
172 extern void unlock_file_all(struct thread_data *, struct fio_file *);
173 extern int add_dir_files(struct thread_data *, const char *);
174 extern int init_random_map(struct thread_data *);
175 extern void dup_files(struct thread_data *, struct thread_data *);
176 extern int get_fileno(struct thread_data *, const char *);
177 extern void free_release_files(struct thread_data *);
178 void fio_file_reset(struct thread_data *, struct fio_file *);