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bitmap: fix bit_masks[] for 32-bit compiles
[fio.git] / file.h
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CommitLineData
1#ifndef FIO_FILE_H
2#define FIO_FILE_H
3
4#include <string.h>
5#include "compiler/compiler.h"
6#include "io_ddir.h"
7#include "flist.h"
8#include "lib/zipf.h"
9#include "lib/bitmap.h"
10
11/*
12 * The type of object we are working on
13 */
14enum fio_filetype {
15 FIO_TYPE_FILE = 1, /* plain file */
16 FIO_TYPE_BD, /* block device */
17 FIO_TYPE_CHAR, /* character device */
18 FIO_TYPE_PIPE, /* pipe */
19};
20
21enum fio_file_flags {
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 */
29};
30
31enum file_lock_mode {
32 FILE_LOCK_NONE,
33 FILE_LOCK_EXCLUSIVE,
34 FILE_LOCK_READWRITE,
35};
36
37/*
38 * roundrobin available files, or choose one at random, or do each one
39 * serially.
40 */
41enum {
42 FIO_FSERVICE_RANDOM = 1,
43 FIO_FSERVICE_RR = 2,
44 FIO_FSERVICE_SEQ = 3,
45};
46
47/*
48 * No pre-allocation when laying down files, or call posix_fallocate(), or
49 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
50 */
51enum fio_fallocate_mode {
52 FIO_FALLOCATE_NONE = 1,
53 FIO_FALLOCATE_POSIX = 2,
54 FIO_FALLOCATE_KEEP_SIZE = 3,
55};
56
57/*
58 * Each thread_data structure has a number of files associated with it,
59 * this structure holds state information for a single file.
60 */
61struct fio_file {
62 struct flist_head hash_list;
63 enum fio_filetype filetype;
64
65 void *file_data;
66 int fd;
67#ifdef WIN32
68 HANDLE hFile;
69 HANDLE ioCP;
70#endif
71
72 /*
73 * filename and possible memory mapping
74 */
75 char *file_name;
76 unsigned int major, minor;
77 int fileno;
78
79 void *mmap_ptr;
80 size_t mmap_sz;
81 off_t mmap_off;
82
83 /*
84 * size of the file, offset into file, and io size from that offset
85 */
86 unsigned long long real_file_size;
87 unsigned long long file_offset;
88 unsigned long long io_size;
89
90 unsigned long long last_pos;
91 unsigned long long last_start;
92
93 unsigned long long first_write;
94 unsigned long long last_write;
95
96 /*
97 * For use by the io engine
98 */
99 unsigned long long file_pos;
100
101 /*
102 * if io is protected by a semaphore, this is set
103 */
104 struct fio_mutex *lock;
105 void *lock_owner;
106 unsigned int lock_batch;
107 enum fio_ddir lock_ddir;
108
109 /*
110 * block map for random io
111 */
112 struct bitmap *io_bitmap;
113
114 /*
115 * Used for zipf random distribution
116 */
117 struct zipf_state zipf;
118
119 int references;
120 enum fio_file_flags flags;
121
122 struct disk_util *du;
123};
124
125#define FILE_FLAG_FNS(name) \
126static inline void fio_file_set_##name(struct fio_file *f) \
127{ \
128 (f)->flags |= FIO_FILE_##name; \
129} \
130static inline void fio_file_clear_##name(struct fio_file *f) \
131{ \
132 (f)->flags &= ~FIO_FILE_##name; \
133} \
134static inline int fio_file_##name(struct fio_file *f) \
135{ \
136 return ((f)->flags & FIO_FILE_##name) != 0; \
137}
138
139FILE_FLAG_FNS(open);
140FILE_FLAG_FNS(closing);
141FILE_FLAG_FNS(extend);
142FILE_FLAG_FNS(done);
143FILE_FLAG_FNS(size_known);
144FILE_FLAG_FNS(hashed);
145FILE_FLAG_FNS(partial_mmap);
146#undef FILE_FLAG_FNS
147
148/*
149 * File setup/shutdown
150 */
151struct thread_data;
152extern void close_files(struct thread_data *);
153extern void close_and_free_files(struct thread_data *);
154extern unsigned long long get_start_offset(struct thread_data *);
155extern int __must_check setup_files(struct thread_data *);
156extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
157extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
158extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
159extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
160extern int __must_check file_lookup_open(struct fio_file *f, int flags);
161extern int __must_check pre_read_files(struct thread_data *);
162extern int add_file(struct thread_data *, const char *);
163extern int add_file_exclusive(struct thread_data *, const char *);
164extern void get_file(struct fio_file *);
165extern int __must_check put_file(struct thread_data *, struct fio_file *);
166extern void put_file_log(struct thread_data *, struct fio_file *);
167extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
168extern void unlock_file(struct thread_data *, struct fio_file *);
169extern void unlock_file_all(struct thread_data *, struct fio_file *);
170extern int add_dir_files(struct thread_data *, const char *);
171extern int init_random_map(struct thread_data *);
172extern void dup_files(struct thread_data *, struct thread_data *);
173extern int get_fileno(struct thread_data *, const char *);
174extern void free_release_files(struct thread_data *);
175
176static inline void fio_file_reset(struct fio_file *f)
177{
178 f->last_pos = f->file_offset;
179 f->last_start = -1ULL;
180 f->file_pos = -1ULL;
181 if (f->io_bitmap)
182 bitmap_reset(f->io_bitmap);
183}
184
185#endif
fio - Flexible IO Tester