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d6aed795 JA |
1 | #ifndef FIO_FILE_H |
2 | #define FIO_FILE_H | |
3 | ||
e2e58886 | 4 | #include <string.h> |
ecc314ba | 5 | #include "compiler/compiler.h" |
d6aed795 | 6 | #include "io_ddir.h" |
ecc314ba | 7 | #include "flist.h" |
9c6f6316 | 8 | #include "lib/zipf.h" |
d6aed795 JA |
9 | |
10 | /* | |
11 | * The type of object we are working on | |
12 | */ | |
13 | enum fio_filetype { | |
14 | FIO_TYPE_FILE = 1, /* plain file */ | |
15 | FIO_TYPE_BD, /* block device */ | |
16 | FIO_TYPE_CHAR, /* character device */ | |
17 | FIO_TYPE_PIPE, /* pipe */ | |
18 | }; | |
19 | ||
20 | enum fio_file_flags { | |
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 */ | |
ed47cbf7 | 27 | FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */ |
d6aed795 JA |
28 | }; |
29 | ||
30 | enum file_lock_mode { | |
31 | FILE_LOCK_NONE, | |
32 | FILE_LOCK_EXCLUSIVE, | |
33 | FILE_LOCK_READWRITE, | |
34 | }; | |
35 | ||
590aebda JA |
36 | /* |
37 | * roundrobin available files, or choose one at random, or do each one | |
38 | * serially. | |
39 | */ | |
40 | enum { | |
41 | FIO_FSERVICE_RANDOM = 1, | |
42 | FIO_FSERVICE_RR = 2, | |
43 | FIO_FSERVICE_SEQ = 3, | |
44 | }; | |
45 | ||
a596f047 EG |
46 | /* |
47 | * No pre-allocation when laying down files, or call posix_fallocate(), or | |
48 | * call fallocate() with FALLOC_FL_KEEP_SIZE set. | |
49 | */ | |
50 | enum fio_fallocate_mode { | |
51 | FIO_FALLOCATE_NONE = 1, | |
52 | FIO_FALLOCATE_POSIX = 2, | |
53 | FIO_FALLOCATE_KEEP_SIZE = 3, | |
54 | }; | |
55 | ||
d6aed795 JA |
56 | /* |
57 | * Each thread_data structure has a number of files associated with it, | |
58 | * this structure holds state information for a single file. | |
59 | */ | |
60 | struct fio_file { | |
61 | struct flist_head hash_list; | |
62 | enum fio_filetype filetype; | |
63 | ||
9e700a73 | 64 | void *file_data; |
0e238572 | 65 | int fd; |
93bcfd20 | 66 | #ifdef WIN32 |
03e20d68 BC |
67 | HANDLE hFile; |
68 | HANDLE ioCP; | |
69 | #endif | |
d6aed795 JA |
70 | |
71 | /* | |
72 | * filename and possible memory mapping | |
73 | */ | |
74 | char *file_name; | |
75 | unsigned int major, minor; | |
89ac1d48 | 76 | int fileno; |
d6aed795 JA |
77 | |
78 | void *mmap_ptr; | |
79 | size_t mmap_sz; | |
80 | off_t mmap_off; | |
81 | ||
82 | /* | |
83 | * size of the file, offset into file, and io size from that offset | |
84 | */ | |
85 | unsigned long long real_file_size; | |
86 | unsigned long long file_offset; | |
87 | unsigned long long io_size; | |
88 | ||
89 | unsigned long long last_pos; | |
38dad62d | 90 | unsigned long long last_start; |
d6aed795 | 91 | |
44f29692 JA |
92 | unsigned long long first_write; |
93 | unsigned long long last_write; | |
94 | ||
e943b878 JA |
95 | /* |
96 | * For use by the io engine | |
97 | */ | |
98 | unsigned long long file_pos; | |
99 | ||
d6aed795 JA |
100 | /* |
101 | * if io is protected by a semaphore, this is set | |
102 | */ | |
103 | struct fio_mutex *lock; | |
104 | void *lock_owner; | |
105 | unsigned int lock_batch; | |
106 | enum fio_ddir lock_ddir; | |
107 | ||
108 | /* | |
109 | * block map for random io | |
110 | */ | |
0ce8b119 | 111 | unsigned long *file_map; |
0e280eef JA |
112 | unsigned long num_maps; |
113 | unsigned long last_free_lookup; | |
114 | unsigned failed_rands; | |
d6aed795 | 115 | |
9c6f6316 JA |
116 | /* |
117 | * Used for zipf random distribution | |
118 | */ | |
119 | struct zipf_state zipf; | |
120 | ||
d6aed795 JA |
121 | int references; |
122 | enum fio_file_flags flags; | |
123 | ||
124 | struct disk_util *du; | |
125 | }; | |
126 | ||
127 | #define FILE_FLAG_FNS(name) \ | |
128 | static inline void fio_file_set_##name(struct fio_file *f) \ | |
129 | { \ | |
130 | (f)->flags |= FIO_FILE_##name; \ | |
131 | } \ | |
132 | static inline void fio_file_clear_##name(struct fio_file *f) \ | |
133 | { \ | |
134 | (f)->flags &= ~FIO_FILE_##name; \ | |
135 | } \ | |
136 | static inline int fio_file_##name(struct fio_file *f) \ | |
137 | { \ | |
138 | return ((f)->flags & FIO_FILE_##name) != 0; \ | |
139 | } | |
140 | ||
141 | FILE_FLAG_FNS(open); | |
142 | FILE_FLAG_FNS(closing); | |
143 | FILE_FLAG_FNS(extend); | |
144 | FILE_FLAG_FNS(done); | |
145 | FILE_FLAG_FNS(size_known); | |
146 | FILE_FLAG_FNS(hashed); | |
ed47cbf7 | 147 | FILE_FLAG_FNS(partial_mmap); |
d6aed795 JA |
148 | #undef FILE_FLAG_FNS |
149 | ||
4cd02b3f JA |
150 | /* |
151 | * File setup/shutdown | |
152 | */ | |
153 | struct thread_data; | |
154 | extern void close_files(struct thread_data *); | |
155 | extern void close_and_free_files(struct thread_data *); | |
ce95d651 | 156 | extern unsigned long long get_start_offset(struct thread_data *); |
4cd02b3f JA |
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 *); | |
1ccc6dc7 | 162 | extern int __must_check file_lookup_open(struct fio_file *f, int flags); |
4cd02b3f JA |
163 | extern int __must_check pre_read_files(struct thread_data *); |
164 | extern int add_file(struct thread_data *, const char *); | |
49ffb4a2 | 165 | extern int add_file_exclusive(struct thread_data *, const char *); |
4cd02b3f JA |
166 | extern void get_file(struct fio_file *); |
167 | extern int __must_check put_file(struct thread_data *, struct fio_file *); | |
e8462bd8 | 168 | extern void put_file_log(struct thread_data *, struct fio_file *); |
4cd02b3f JA |
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 *); | |
177 | ||
c592b9fe JA |
178 | static inline void fio_file_reset(struct fio_file *f) |
179 | { | |
180 | f->last_free_lookup = 0; | |
0ce8b119 | 181 | f->failed_rands = 0; |
c592b9fe | 182 | f->last_pos = f->file_offset; |
38dad62d | 183 | f->last_start = -1ULL; |
e943b878 | 184 | f->file_pos = -1ULL; |
c592b9fe | 185 | if (f->file_map) |
0ce8b119 | 186 | memset(f->file_map, 0, f->num_maps * sizeof(unsigned long)); |
c592b9fe JA |
187 | } |
188 | ||
d6aed795 | 189 | #endif |