4 #include "compiler/compiler.h"
9 * The type of object we are working on
12 FIO_TYPE_FILE = 1, /* plain file */
13 FIO_TYPE_BD, /* block device */
14 FIO_TYPE_CHAR, /* character device */
15 FIO_TYPE_PIPE, /* pipe */
19 FIO_FILE_open = 1 << 0, /* file is open */
20 FIO_FILE_closing = 1 << 1, /* file being closed */
21 FIO_FILE_extend = 1 << 2, /* needs extend */
22 FIO_FILE_done = 1 << 3, /* io completed to this file */
23 FIO_FILE_size_known = 1 << 4, /* size has been set */
24 FIO_FILE_hashed = 1 << 5, /* file is on hash */
25 FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
35 * roundrobin available files, or choose one at random, or do each one
39 FIO_FSERVICE_RANDOM = 1,
45 * Each thread_data structure has a number of files associated with it,
46 * this structure holds state information for a single file.
49 struct flist_head hash_list;
50 enum fio_filetype filetype;
60 * filename and possible memory mapping
63 unsigned int major, minor;
70 * size of the file, offset into file, and io size from that offset
72 unsigned long long real_file_size;
73 unsigned long long file_offset;
74 unsigned long long io_size;
76 unsigned long long last_pos;
77 unsigned long long last_start;
79 unsigned long long first_write;
80 unsigned long long last_write;
83 * For use by the io engine
85 unsigned long long file_pos;
88 * if io is protected by a semaphore, this is set
90 struct fio_mutex *lock;
92 unsigned int lock_batch;
93 enum fio_ddir lock_ddir;
96 * block map for random io
98 unsigned int *file_map;
99 unsigned int num_maps;
100 unsigned int last_free_lookup;
103 enum fio_file_flags flags;
105 struct disk_util *du;
108 #define FILE_FLAG_FNS(name) \
109 static inline void fio_file_set_##name(struct fio_file *f) \
111 (f)->flags |= FIO_FILE_##name; \
113 static inline void fio_file_clear_##name(struct fio_file *f) \
115 (f)->flags &= ~FIO_FILE_##name; \
117 static inline int fio_file_##name(struct fio_file *f) \
119 return ((f)->flags & FIO_FILE_##name) != 0; \
123 FILE_FLAG_FNS(closing);
124 FILE_FLAG_FNS(extend);
126 FILE_FLAG_FNS(size_known);
127 FILE_FLAG_FNS(hashed);
128 FILE_FLAG_FNS(partial_mmap);
132 * File setup/shutdown
135 extern void close_files(struct thread_data *);
136 extern void close_and_free_files(struct thread_data *);
137 extern int __must_check setup_files(struct thread_data *);
138 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
139 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
140 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
141 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
142 extern int __must_check pre_read_files(struct thread_data *);
143 extern int add_file(struct thread_data *, const char *);
144 extern int add_file_exclusive(struct thread_data *, const char *);
145 extern void get_file(struct fio_file *);
146 extern int __must_check put_file(struct thread_data *, struct fio_file *);
147 extern void put_file_log(struct thread_data *, struct fio_file *);
148 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
149 extern void unlock_file(struct thread_data *, struct fio_file *);
150 extern void unlock_file_all(struct thread_data *, struct fio_file *);
151 extern int add_dir_files(struct thread_data *, const char *);
152 extern int init_random_map(struct thread_data *);
153 extern void dup_files(struct thread_data *, struct thread_data *);
154 extern int get_fileno(struct thread_data *, const char *);
155 extern void free_release_files(struct thread_data *);
157 static inline void fio_file_reset(struct fio_file *f)
159 f->last_free_lookup = 0;
160 f->last_pos = f->file_offset;
161 f->last_start = -1ULL;
164 memset(f->file_map, 0, f->num_maps * sizeof(int));