5 #include "compiler/compiler.h"
11 * The type of object we are working on
14 FIO_TYPE_FILE = 1, /* plain file */
15 FIO_TYPE_BD, /* block device */
16 FIO_TYPE_CHAR, /* character device */
17 FIO_TYPE_PIPE, /* pipe */
21 FIO_FILE_open = 1 << 0, /* file is open */
22 FIO_FILE_closing = 1 << 1, /* file being closed */
23 FIO_FILE_extend = 1 << 2, /* needs extend */
24 FIO_FILE_done = 1 << 3, /* io completed to this file */
25 FIO_FILE_size_known = 1 << 4, /* size has been set */
26 FIO_FILE_hashed = 1 << 5, /* file is on hash */
27 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
37 * roundrobin available files, or choose one at random, or do each one
41 FIO_FSERVICE_RANDOM = 1,
47 * No pre-allocation when laying down files, or call posix_fallocate(), or
48 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
50 enum fio_fallocate_mode {
51 FIO_FALLOCATE_NONE = 1,
52 FIO_FALLOCATE_POSIX = 2,
53 FIO_FALLOCATE_KEEP_SIZE = 3,
57 * Each thread_data structure has a number of files associated with it,
58 * this structure holds state information for a single file.
61 struct flist_head hash_list;
62 enum fio_filetype filetype;
72 * filename and possible memory mapping
75 unsigned int major, minor;
83 * size of the file, offset into file, and io size from that offset
85 unsigned long long real_file_size;
86 unsigned long long file_offset;
87 unsigned long long io_size;
89 unsigned long long last_pos;
90 unsigned long long last_start;
92 unsigned long long first_write;
93 unsigned long long last_write;
96 * For use by the io engine
98 unsigned long long file_pos;
101 * if io is protected by a semaphore, this is set
103 struct fio_mutex *lock;
105 unsigned int lock_batch;
106 enum fio_ddir lock_ddir;
109 * block map for random io
111 unsigned long *file_map;
112 unsigned long num_maps;
113 unsigned long last_free_lookup;
114 unsigned failed_rands;
117 * Used for zipf random distribution
119 struct zipf_state zipf;
122 enum fio_file_flags flags;
124 struct disk_util *du;
127 #define FILE_FLAG_FNS(name) \
128 static inline void fio_file_set_##name(struct fio_file *f) \
130 (f)->flags |= FIO_FILE_##name; \
132 static inline void fio_file_clear_##name(struct fio_file *f) \
134 (f)->flags &= ~FIO_FILE_##name; \
136 static inline int fio_file_##name(struct fio_file *f) \
138 return ((f)->flags & FIO_FILE_##name) != 0; \
142 FILE_FLAG_FNS(closing);
143 FILE_FLAG_FNS(extend);
145 FILE_FLAG_FNS(size_known);
146 FILE_FLAG_FNS(hashed);
147 FILE_FLAG_FNS(partial_mmap);
151 * File setup/shutdown
154 extern void close_files(struct thread_data *);
155 extern void close_and_free_files(struct thread_data *);
156 extern unsigned long long get_start_offset(struct thread_data *);
157 extern int __must_check setup_files(struct thread_data *);
158 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
159 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
160 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
161 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
162 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
163 extern int __must_check pre_read_files(struct thread_data *);
164 extern int add_file(struct thread_data *, const char *);
165 extern int add_file_exclusive(struct thread_data *, const char *);
166 extern void get_file(struct fio_file *);
167 extern int __must_check put_file(struct thread_data *, struct fio_file *);
168 extern void put_file_log(struct thread_data *, struct fio_file *);
169 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
170 extern void unlock_file(struct thread_data *, struct fio_file *);
171 extern void unlock_file_all(struct thread_data *, struct fio_file *);
172 extern int add_dir_files(struct thread_data *, const char *);
173 extern int init_random_map(struct thread_data *);
174 extern void dup_files(struct thread_data *, struct thread_data *);
175 extern int get_fileno(struct thread_data *, const char *);
176 extern void free_release_files(struct thread_data *);
178 static inline void fio_file_reset(struct fio_file *f)
180 f->last_free_lookup = 0;
182 f->last_pos = f->file_offset;
183 f->last_start = -1ULL;
186 memset(f->file_map, 0, f->num_maps * sizeof(unsigned long));