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 */
23 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
33 * roundrobin available files, or choose one at random, or do each one
37 FIO_FSERVICE_RANDOM = 1,
43 * Each thread_data structure has a number of files associated with it,
44 * this structure holds state information for a single file.
47 struct flist_head hash_list;
48 enum fio_filetype filetype;
51 * A file may not be a file descriptor, let the io engine decide
54 unsigned long file_data;
59 * filename and possible memory mapping
62 unsigned int major, minor;
69 * size of the file, offset into file, and io size from that offset
71 unsigned long long real_file_size;
72 unsigned long long file_offset;
73 unsigned long long io_size;
75 unsigned long long last_pos;
78 * if io is protected by a semaphore, this is set
80 struct fio_mutex *lock;
82 unsigned int lock_batch;
83 enum fio_ddir lock_ddir;
86 * block map for random io
88 unsigned int *file_map;
89 unsigned int num_maps;
90 unsigned int last_free_lookup;
93 enum fio_file_flags flags;
98 #define FILE_FLAG_FNS(name) \
99 static inline void fio_file_set_##name(struct fio_file *f) \
101 (f)->flags |= FIO_FILE_##name; \
103 static inline void fio_file_clear_##name(struct fio_file *f) \
105 (f)->flags &= ~FIO_FILE_##name; \
107 static inline int fio_file_##name(struct fio_file *f) \
109 return ((f)->flags & FIO_FILE_##name) != 0; \
113 FILE_FLAG_FNS(closing);
114 FILE_FLAG_FNS(extend);
116 FILE_FLAG_FNS(size_known);
117 FILE_FLAG_FNS(hashed);
118 FILE_FLAG_FNS(partial_mmap);
122 * File setup/shutdown
125 extern void close_files(struct thread_data *);
126 extern void close_and_free_files(struct thread_data *);
127 extern int __must_check setup_files(struct thread_data *);
128 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
129 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
130 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
131 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
132 extern int __must_check pre_read_files(struct thread_data *);
133 extern int add_file(struct thread_data *, const char *);
134 extern void get_file(struct fio_file *);
135 extern int __must_check put_file(struct thread_data *, struct fio_file *);
136 extern void put_file_log(struct thread_data *, struct fio_file *);
137 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
138 extern void unlock_file(struct thread_data *, struct fio_file *);
139 extern void unlock_file_all(struct thread_data *, struct fio_file *);
140 extern int add_dir_files(struct thread_data *, const char *);
141 extern int init_random_map(struct thread_data *);
142 extern void dup_files(struct thread_data *, struct thread_data *);
143 extern int get_fileno(struct thread_data *, const char *);
144 extern void free_release_files(struct thread_data *);
146 static inline void fio_file_reset(struct fio_file *f)
148 f->last_free_lookup = 0;
149 f->last_pos = f->file_offset;
151 memset(f->file_map, 0, f->num_maps * sizeof(int));