7 * The type of object we are working on
10 FIO_TYPE_FILE = 1, /* plain file */
11 FIO_TYPE_BD, /* block device */
12 FIO_TYPE_CHAR, /* character device */
13 FIO_TYPE_PIPE, /* pipe */
17 FIO_FILE_open = 1 << 0, /* file is open */
18 FIO_FILE_closing = 1 << 1, /* file being closed */
19 FIO_FILE_extend = 1 << 2, /* needs extend */
20 FIO_FILE_done = 1 << 3, /* io completed to this file */
21 FIO_FILE_size_known = 1 << 4, /* size has been set */
22 FIO_FILE_hashed = 1 << 5, /* file is on hash */
32 * roundrobin available files, or choose one at random, or do each one
36 FIO_FSERVICE_RANDOM = 1,
42 * Each thread_data structure has a number of files associated with it,
43 * this structure holds state information for a single file.
46 struct flist_head hash_list;
47 enum fio_filetype filetype;
50 * A file may not be a file descriptor, let the io engine decide
53 unsigned long file_data;
58 * filename and possible memory mapping
61 unsigned int major, minor;
68 * size of the file, offset into file, and io size from that offset
70 unsigned long long real_file_size;
71 unsigned long long file_offset;
72 unsigned long long io_size;
74 unsigned long long last_pos;
77 * if io is protected by a semaphore, this is set
79 struct fio_mutex *lock;
81 unsigned int lock_batch;
82 enum fio_ddir lock_ddir;
85 * block map for random io
87 unsigned int *file_map;
88 unsigned int num_maps;
89 unsigned int last_free_lookup;
92 enum fio_file_flags flags;
97 #define FILE_FLAG_FNS(name) \
98 static inline void fio_file_set_##name(struct fio_file *f) \
100 (f)->flags |= FIO_FILE_##name; \
102 static inline void fio_file_clear_##name(struct fio_file *f) \
104 (f)->flags &= ~FIO_FILE_##name; \
106 static inline int fio_file_##name(struct fio_file *f) \
108 return ((f)->flags & FIO_FILE_##name) != 0; \
112 FILE_FLAG_FNS(closing);
113 FILE_FLAG_FNS(extend);
115 FILE_FLAG_FNS(size_known);
116 FILE_FLAG_FNS(hashed);
120 * File setup/shutdown
123 extern void close_files(struct thread_data *);
124 extern void close_and_free_files(struct thread_data *);
125 extern int __must_check setup_files(struct thread_data *);
126 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
127 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
128 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
129 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
130 extern int __must_check pre_read_files(struct thread_data *);
131 extern int add_file(struct thread_data *, const char *);
132 extern void get_file(struct fio_file *);
133 extern int __must_check put_file(struct thread_data *, struct fio_file *);
134 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
135 extern void unlock_file(struct thread_data *, struct fio_file *);
136 extern void unlock_file_all(struct thread_data *, struct fio_file *);
137 extern int add_dir_files(struct thread_data *, const char *);
138 extern int init_random_map(struct thread_data *);
139 extern void dup_files(struct thread_data *, struct thread_data *);
140 extern int get_fileno(struct thread_data *, const char *);
141 extern void free_release_files(struct thread_data *);
143 static inline void fio_file_reset(struct fio_file *f)
145 f->last_free_lookup = 0;
146 f->last_pos = f->file_offset;
148 memset(f->file_map, 0, f->num_maps * sizeof(int));