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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" |
7ebd796f | 9 | #include "lib/axmap.h" |
8055e41d | 10 | #include "lib/lfsr.h" |
d6aed795 JA |
11 | |
12 | /* | |
13 | * The type of object we are working on | |
14 | */ | |
15 | enum fio_filetype { | |
16 | FIO_TYPE_FILE = 1, /* plain file */ | |
17 | FIO_TYPE_BD, /* block device */ | |
18 | FIO_TYPE_CHAR, /* character device */ | |
19 | FIO_TYPE_PIPE, /* pipe */ | |
20 | }; | |
21 | ||
22 | enum fio_file_flags { | |
23 | FIO_FILE_open = 1 << 0, /* file is open */ | |
24 | FIO_FILE_closing = 1 << 1, /* file being closed */ | |
25 | FIO_FILE_extend = 1 << 2, /* needs extend */ | |
26 | FIO_FILE_done = 1 << 3, /* io completed to this file */ | |
27 | FIO_FILE_size_known = 1 << 4, /* size has been set */ | |
28 | FIO_FILE_hashed = 1 << 5, /* file is on hash */ | |
ed47cbf7 | 29 | FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */ |
d6aed795 JA |
30 | }; |
31 | ||
32 | enum file_lock_mode { | |
33 | FILE_LOCK_NONE, | |
34 | FILE_LOCK_EXCLUSIVE, | |
35 | FILE_LOCK_READWRITE, | |
36 | }; | |
37 | ||
590aebda JA |
38 | /* |
39 | * roundrobin available files, or choose one at random, or do each one | |
40 | * serially. | |
41 | */ | |
42 | enum { | |
43 | FIO_FSERVICE_RANDOM = 1, | |
44 | FIO_FSERVICE_RR = 2, | |
45 | FIO_FSERVICE_SEQ = 3, | |
46 | }; | |
47 | ||
a596f047 EG |
48 | /* |
49 | * No pre-allocation when laying down files, or call posix_fallocate(), or | |
50 | * call fallocate() with FALLOC_FL_KEEP_SIZE set. | |
51 | */ | |
52 | enum fio_fallocate_mode { | |
53 | FIO_FALLOCATE_NONE = 1, | |
54 | FIO_FALLOCATE_POSIX = 2, | |
55 | FIO_FALLOCATE_KEEP_SIZE = 3, | |
56 | }; | |
57 | ||
d6aed795 JA |
58 | /* |
59 | * Each thread_data structure has a number of files associated with it, | |
60 | * this structure holds state information for a single file. | |
61 | */ | |
62 | struct fio_file { | |
63 | struct flist_head hash_list; | |
64 | enum fio_filetype filetype; | |
65 | ||
9e700a73 | 66 | void *file_data; |
0e238572 | 67 | int fd; |
e6c4d732 | 68 | int shadow_fd; |
93bcfd20 | 69 | #ifdef WIN32 |
03e20d68 BC |
70 | HANDLE hFile; |
71 | HANDLE ioCP; | |
72 | #endif | |
d6aed795 JA |
73 | |
74 | /* | |
75 | * filename and possible memory mapping | |
76 | */ | |
77 | char *file_name; | |
78 | unsigned int major, minor; | |
89ac1d48 | 79 | int fileno; |
d6aed795 JA |
80 | |
81 | void *mmap_ptr; | |
82 | size_t mmap_sz; | |
83 | off_t mmap_off; | |
84 | ||
85 | /* | |
86 | * size of the file, offset into file, and io size from that offset | |
87 | */ | |
88 | unsigned long long real_file_size; | |
89 | unsigned long long file_offset; | |
90 | unsigned long long io_size; | |
91 | ||
92 | unsigned long long last_pos; | |
38dad62d | 93 | unsigned long long last_start; |
d6aed795 | 94 | |
44f29692 JA |
95 | unsigned long long first_write; |
96 | unsigned long long last_write; | |
97 | ||
e943b878 JA |
98 | /* |
99 | * For use by the io engine | |
100 | */ | |
101 | unsigned long long file_pos; | |
102 | ||
d6aed795 JA |
103 | /* |
104 | * if io is protected by a semaphore, this is set | |
105 | */ | |
106 | struct fio_mutex *lock; | |
107 | void *lock_owner; | |
108 | unsigned int lock_batch; | |
109 | enum fio_ddir lock_ddir; | |
110 | ||
111 | /* | |
112 | * block map for random io | |
113 | */ | |
7ebd796f | 114 | struct axmap *io_axmap; |
d6aed795 | 115 | |
8055e41d JA |
116 | struct fio_lfsr lfsr; |
117 | ||
9c6f6316 JA |
118 | /* |
119 | * Used for zipf random distribution | |
120 | */ | |
121 | struct zipf_state zipf; | |
122 | ||
d6aed795 JA |
123 | int references; |
124 | enum fio_file_flags flags; | |
125 | ||
126 | struct disk_util *du; | |
127 | }; | |
128 | ||
129 | #define FILE_FLAG_FNS(name) \ | |
130 | static inline void fio_file_set_##name(struct fio_file *f) \ | |
131 | { \ | |
132 | (f)->flags |= FIO_FILE_##name; \ | |
133 | } \ | |
134 | static inline void fio_file_clear_##name(struct fio_file *f) \ | |
135 | { \ | |
136 | (f)->flags &= ~FIO_FILE_##name; \ | |
137 | } \ | |
138 | static inline int fio_file_##name(struct fio_file *f) \ | |
139 | { \ | |
140 | return ((f)->flags & FIO_FILE_##name) != 0; \ | |
141 | } | |
142 | ||
143 | FILE_FLAG_FNS(open); | |
144 | FILE_FLAG_FNS(closing); | |
145 | FILE_FLAG_FNS(extend); | |
146 | FILE_FLAG_FNS(done); | |
147 | FILE_FLAG_FNS(size_known); | |
148 | FILE_FLAG_FNS(hashed); | |
ed47cbf7 | 149 | FILE_FLAG_FNS(partial_mmap); |
d6aed795 JA |
150 | #undef FILE_FLAG_FNS |
151 | ||
4cd02b3f JA |
152 | /* |
153 | * File setup/shutdown | |
154 | */ | |
155 | struct thread_data; | |
156 | extern void close_files(struct thread_data *); | |
157 | extern void close_and_free_files(struct thread_data *); | |
ce95d651 | 158 | extern unsigned long long get_start_offset(struct thread_data *); |
4cd02b3f JA |
159 | extern int __must_check setup_files(struct thread_data *); |
160 | extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *); | |
161 | extern int __must_check generic_open_file(struct thread_data *, struct fio_file *); | |
162 | extern int __must_check generic_close_file(struct thread_data *, struct fio_file *); | |
163 | extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *); | |
1ccc6dc7 | 164 | extern int __must_check file_lookup_open(struct fio_file *f, int flags); |
4cd02b3f JA |
165 | extern int __must_check pre_read_files(struct thread_data *); |
166 | extern int add_file(struct thread_data *, const char *); | |
49ffb4a2 | 167 | extern int add_file_exclusive(struct thread_data *, const char *); |
4cd02b3f JA |
168 | extern void get_file(struct fio_file *); |
169 | extern int __must_check put_file(struct thread_data *, struct fio_file *); | |
e8462bd8 | 170 | extern void put_file_log(struct thread_data *, struct fio_file *); |
4cd02b3f JA |
171 | extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir); |
172 | extern void unlock_file(struct thread_data *, struct fio_file *); | |
173 | extern void unlock_file_all(struct thread_data *, struct fio_file *); | |
174 | extern int add_dir_files(struct thread_data *, const char *); | |
175 | extern int init_random_map(struct thread_data *); | |
176 | extern void dup_files(struct thread_data *, struct thread_data *); | |
177 | extern int get_fileno(struct thread_data *, const char *); | |
178 | extern void free_release_files(struct thread_data *); | |
179 | ||
c592b9fe JA |
180 | static inline void fio_file_reset(struct fio_file *f) |
181 | { | |
c592b9fe | 182 | f->last_pos = f->file_offset; |
38dad62d | 183 | f->last_start = -1ULL; |
e943b878 | 184 | f->file_pos = -1ULL; |
7ebd796f JA |
185 | if (f->io_axmap) |
186 | axmap_reset(f->io_axmap); | |
c592b9fe JA |
187 | } |
188 | ||
d6aed795 | 189 | #endif |