5 #include "compiler/compiler.h"
9 #include "lib/bitmap.h"
12 * The type of object we are working on
15 FIO_TYPE_FILE = 1, /* plain file */
16 FIO_TYPE_BD, /* block device */
17 FIO_TYPE_CHAR, /* character device */
18 FIO_TYPE_PIPE, /* pipe */
22 FIO_FILE_open = 1 << 0, /* file is open */
23 FIO_FILE_closing = 1 << 1, /* file being closed */
24 FIO_FILE_extend = 1 << 2, /* needs extend */
25 FIO_FILE_done = 1 << 3, /* io completed to this file */
26 FIO_FILE_size_known = 1 << 4, /* size has been set */
27 FIO_FILE_hashed = 1 << 5, /* file is on hash */
28 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
38 * roundrobin available files, or choose one at random, or do each one
42 FIO_FSERVICE_RANDOM = 1,
48 * No pre-allocation when laying down files, or call posix_fallocate(), or
49 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
51 enum fio_fallocate_mode {
52 FIO_FALLOCATE_NONE = 1,
53 FIO_FALLOCATE_POSIX = 2,
54 FIO_FALLOCATE_KEEP_SIZE = 3,
58 * Each thread_data structure has a number of files associated with it,
59 * this structure holds state information for a single file.
62 struct flist_head hash_list;
63 enum fio_filetype filetype;
73 * filename and possible memory mapping
76 unsigned int major, minor;
84 * size of the file, offset into file, and io size from that offset
86 unsigned long long real_file_size;
87 unsigned long long file_offset;
88 unsigned long long io_size;
90 unsigned long long last_pos;
91 unsigned long long last_start;
93 unsigned long long first_write;
94 unsigned long long last_write;
97 * For use by the io engine
99 unsigned long long file_pos;
102 * if io is protected by a semaphore, this is set
104 struct fio_mutex *lock;
106 unsigned int lock_batch;
107 enum fio_ddir lock_ddir;
110 * block map for random io
112 struct bitmap *io_bitmap;
115 * Used for zipf random distribution
117 struct zipf_state zipf;
120 enum fio_file_flags flags;
122 struct disk_util *du;
125 #define FILE_FLAG_FNS(name) \
126 static inline void fio_file_set_##name(struct fio_file *f) \
128 (f)->flags |= FIO_FILE_##name; \
130 static inline void fio_file_clear_##name(struct fio_file *f) \
132 (f)->flags &= ~FIO_FILE_##name; \
134 static inline int fio_file_##name(struct fio_file *f) \
136 return ((f)->flags & FIO_FILE_##name) != 0; \
140 FILE_FLAG_FNS(closing);
141 FILE_FLAG_FNS(extend);
143 FILE_FLAG_FNS(size_known);
144 FILE_FLAG_FNS(hashed);
145 FILE_FLAG_FNS(partial_mmap);
149 * File setup/shutdown
152 extern void close_files(struct thread_data *);
153 extern void close_and_free_files(struct thread_data *);
154 extern unsigned long long get_start_offset(struct thread_data *);
155 extern int __must_check setup_files(struct thread_data *);
156 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
157 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
158 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
159 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
160 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
161 extern int __must_check pre_read_files(struct thread_data *);
162 extern int add_file(struct thread_data *, const char *);
163 extern int add_file_exclusive(struct thread_data *, const char *);
164 extern void get_file(struct fio_file *);
165 extern int __must_check put_file(struct thread_data *, struct fio_file *);
166 extern void put_file_log(struct thread_data *, struct fio_file *);
167 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
168 extern void unlock_file(struct thread_data *, struct fio_file *);
169 extern void unlock_file_all(struct thread_data *, struct fio_file *);
170 extern int add_dir_files(struct thread_data *, const char *);
171 extern int init_random_map(struct thread_data *);
172 extern void dup_files(struct thread_data *, struct thread_data *);
173 extern int get_fileno(struct thread_data *, const char *);
174 extern void free_release_files(struct thread_data *);
176 static inline void fio_file_reset(struct fio_file *f)
178 f->last_pos = f->file_offset;
179 f->last_start = -1ULL;
182 bitmap_reset(f->io_bitmap);