[fio.git] / file.h

#ifndef FIO_FILE_H
#define FIO_FILE_H

#include <string.h>
#include "compiler/compiler.h"
#include "io_ddir.h"
#include "flist.h"
#include "lib/zipf.h"
#include "lib/axmap.h"
#include "lib/lfsr.h"
#include "lib/gauss.h"

/* Forward declarations */
struct zoned_block_device_info;

/*
 * The type of object we are working on
 */
enum fio_filetype {
	FIO_TYPE_FILE = 1,		/* plain file */
	FIO_TYPE_BLOCK,			/* block device */
	FIO_TYPE_CHAR,			/* character device */
	FIO_TYPE_PIPE,			/* pipe */
};

enum fio_file_flags {
	FIO_FILE_open		= 1 << 0,	/* file is open */
	FIO_FILE_closing	= 1 << 1,	/* file being closed */
	FIO_FILE_extend		= 1 << 2,	/* needs extend */
	FIO_FILE_done		= 1 << 3,	/* io completed to this file */
	FIO_FILE_size_known	= 1 << 4,	/* size has been set */
	FIO_FILE_hashed		= 1 << 5,	/* file is on hash */
	FIO_FILE_partial_mmap	= 1 << 6,	/* can't do full mmap */
	FIO_FILE_axmap		= 1 << 7,	/* uses axmap */
	FIO_FILE_lfsr		= 1 << 8,	/* lfsr is used */
	FIO_FILE_smalloc	= 1 << 9,	/* smalloc file/file_name */
};

enum file_lock_mode {
	FILE_LOCK_NONE,
	FILE_LOCK_EXCLUSIVE,
	FILE_LOCK_READWRITE,
};

/*
 * How fio chooses what file to service next. Choice of uniformly random, or
 * some skewed random variants, or just sequentially go through them or
 * roundrobing.
 */
enum {
	FIO_FSERVICE_RANDOM		= 1,
	FIO_FSERVICE_RR			= 2,
	FIO_FSERVICE_SEQ		= 3,
	__FIO_FSERVICE_NONUNIFORM	= 0x100,
	FIO_FSERVICE_ZIPF		= __FIO_FSERVICE_NONUNIFORM | 4,
	FIO_FSERVICE_PARETO		= __FIO_FSERVICE_NONUNIFORM | 5,
	FIO_FSERVICE_GAUSS		= __FIO_FSERVICE_NONUNIFORM | 6,

	FIO_FSERVICE_SHIFT		= 10,
};

/*
 * No pre-allocation when laying down files, or call posix_fallocate(), or
 * call fallocate() with FALLOC_FL_KEEP_SIZE set.
 */
enum fio_fallocate_mode {
	FIO_FALLOCATE_NONE	= 1,
	FIO_FALLOCATE_POSIX	= 2,
	FIO_FALLOCATE_KEEP_SIZE	= 3,
	FIO_FALLOCATE_NATIVE	= 4,
	FIO_FALLOCATE_TRUNCATE	= 5,
};

/*
 * Each thread_data structure has a number of files associated with it,
 * this structure holds state information for a single file.
 */
struct fio_file {
	struct flist_head hash_list;
	enum fio_filetype filetype;

	int fd;
	int shadow_fd;
#ifdef WIN32
	HANDLE hFile;
	HANDLE ioCP;
#endif

	/*
	 * filename and possible memory mapping
	 */
	unsigned int major, minor;
	int fileno;
	char *file_name;

	/*
	 * size of the file, offset into file, and io size from that offset
	 * (be aware io_size is different from thread_options::io_size)
	 */
	uint64_t real_file_size;
	uint64_t file_offset;
	uint64_t io_size;

	/*
	 * Zoned block device information. See also zonemode=zbd.
	 */
	struct zoned_block_device_info *zbd_info;
	/* zonemode=zbd working area */
	uint32_t min_zone;	/* inclusive */
	uint32_t max_zone;	/* exclusive */

	/*
	 * Track last end and last start of IO for a given data direction
	 */
	uint64_t last_pos[DDIR_RWDIR_CNT];
	uint64_t last_start[DDIR_RWDIR_CNT];

	uint64_t first_write;
	uint64_t last_write;

	/*
	 * Tracks the last iodepth number of completed writes, if data
	 * verification is enabled
	 */
	uint64_t *last_write_comp;
	unsigned int last_write_idx;

	/*
	 * For use by the io engine for offset or private data storage
	 */
	union {
		uint64_t engine_pos;
		void *engine_data;
	};

	/*
	 * if io is protected by a semaphore, this is set
	 */
	union {
		struct fio_sem *lock;
		struct fio_rwlock *rwlock;
	};

	/*
	 * block map or LFSR for random io
	 */
	union {
		struct axmap *io_axmap;
		struct fio_lfsr lfsr;
	};

	/*
	 * Used for zipf random distribution
	 */
	union {
		struct zipf_state zipf;
		struct gauss_state gauss;
	};

	int references;
	enum fio_file_flags flags;

	struct disk_util *du;
};

#define FILE_ENG_DATA(f)		((f)->engine_data)
#define FILE_SET_ENG_DATA(f, data)	((f)->engine_data = (data))

#define FILE_FLAG_FNS(name)						\
static inline void fio_file_set_##name(struct fio_file *f)		\
{									\
	(f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name);	\
}									\
static inline void fio_file_clear_##name(struct fio_file *f)		\
{									\
	(f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name);	\
}									\
static inline int fio_file_##name(struct fio_file *f)			\
{									\
	return ((f)->flags & FIO_FILE_##name) != 0;			\
}

FILE_FLAG_FNS(open);
FILE_FLAG_FNS(closing);
FILE_FLAG_FNS(extend);
FILE_FLAG_FNS(done);
FILE_FLAG_FNS(size_known);
FILE_FLAG_FNS(hashed);
FILE_FLAG_FNS(partial_mmap);
FILE_FLAG_FNS(axmap);
FILE_FLAG_FNS(lfsr);
FILE_FLAG_FNS(smalloc);
#undef FILE_FLAG_FNS

/*
 * File setup/shutdown
 */
struct thread_data;
extern void close_files(struct thread_data *);
extern void close_and_free_files(struct thread_data *);
extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
extern int __must_check setup_files(struct thread_data *);
extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
#ifdef __cplusplus
extern "C" {
#endif
extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
#ifdef __cplusplus
}
#endif
extern int __must_check file_lookup_open(struct fio_file *f, int flags);
extern bool __must_check pre_read_files(struct thread_data *);
extern unsigned long long get_rand_file_size(struct thread_data *td);
extern int add_file(struct thread_data *, const char *, int, int);
extern int add_file_exclusive(struct thread_data *, const char *);
extern void get_file(struct fio_file *);
extern int __must_check put_file(struct thread_data *, struct fio_file *);
extern void put_file_log(struct thread_data *, struct fio_file *);
extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
extern void unlock_file(struct thread_data *, struct fio_file *);
extern void unlock_file_all(struct thread_data *, struct fio_file *);
extern int add_dir_files(struct thread_data *, const char *);
extern bool init_random_map(struct thread_data *);
extern void dup_files(struct thread_data *, struct thread_data *);
extern int get_fileno(struct thread_data *, const char *);
extern void free_release_files(struct thread_data *);
extern void filesetup_mem_free(void);
extern void fio_file_reset(struct thread_data *, struct fio_file *);
extern bool fio_files_done(struct thread_data *);
extern bool exists_and_not_regfile(const char *);
extern int fio_set_directio(struct thread_data *, struct fio_file *);
extern void fio_file_free(struct fio_file *);

#endif
Commit	Line	Data
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"
56d9fa4b	11	#include "lib/gauss.h"
d6aed795	12
bfbdd35b BVA	13	/* Forward declarations */
	14	struct zoned_block_device_info;
	15
d6aed795 JA	16	/*
	17	* The type of object we are working on
	18	*/
	19	enum fio_filetype {
	20	FIO_TYPE_FILE = 1, /* plain file */
686fbd31	21	FIO_TYPE_BLOCK, /* block device */
d6aed795 JA	22	FIO_TYPE_CHAR, /* character device */
	23	FIO_TYPE_PIPE, /* pipe */
	24	};
	25
	26	enum fio_file_flags {
	27	FIO_FILE_open = 1 << 0, /* file is open */
	28	FIO_FILE_closing = 1 << 1, /* file being closed */
	29	FIO_FILE_extend = 1 << 2, /* needs extend */
	30	FIO_FILE_done = 1 << 3, /* io completed to this file */
	31	FIO_FILE_size_known = 1 << 4, /* size has been set */
	32	FIO_FILE_hashed = 1 << 5, /* file is on hash */
ed47cbf7	33	FIO_FILE_partial_mmap = 1 << 6, /* can't do full mmap */
967d1b63 JA	34	FIO_FILE_axmap = 1 << 7, /* uses axmap */
967d1b63 JA	35	FIO_FILE_lfsr = 1 << 8, /* lfsr is used */
6081231a	36	FIO_FILE_smalloc = 1 << 9, /* smalloc file/file_name */
d6aed795 JA	37	};
	38
	39	enum file_lock_mode {
	40	FILE_LOCK_NONE,
	41	FILE_LOCK_EXCLUSIVE,
	42	FILE_LOCK_READWRITE,
	43	};
	44
590aebda	45	/*
8c07860d JA	46	* How fio chooses what file to service next. Choice of uniformly random, or
	47	* some skewed random variants, or just sequentially go through them or
	48	* roundrobing.
590aebda JA	49	*/
590aebda JA	50	enum {
8c07860d JA	51	FIO_FSERVICE_RANDOM = 1,
	52	FIO_FSERVICE_RR = 2,
	53	FIO_FSERVICE_SEQ = 3,
	54	__FIO_FSERVICE_NONUNIFORM = 0x100,
	55	FIO_FSERVICE_ZIPF = __FIO_FSERVICE_NONUNIFORM \| 4,
	56	FIO_FSERVICE_PARETO = __FIO_FSERVICE_NONUNIFORM \| 5,
	57	FIO_FSERVICE_GAUSS = __FIO_FSERVICE_NONUNIFORM \| 6,
	58
	59	FIO_FSERVICE_SHIFT = 10,
590aebda JA	60	};
590aebda JA	61
a596f047 EG	62	/*
	63	* No pre-allocation when laying down files, or call posix_fallocate(), or
	64	* call fallocate() with FALLOC_FL_KEEP_SIZE set.
	65	*/
	66	enum fio_fallocate_mode {
	67	FIO_FALLOCATE_NONE = 1,
	68	FIO_FALLOCATE_POSIX = 2,
	69	FIO_FALLOCATE_KEEP_SIZE = 3,
2c3e17be	70	FIO_FALLOCATE_NATIVE = 4,
38ca5f03	71	FIO_FALLOCATE_TRUNCATE = 5,
a596f047 EG	72	};
a596f047 EG	73
d6aed795 JA	74	/*
	75	* Each thread_data structure has a number of files associated with it,
	76	* this structure holds state information for a single file.
	77	*/
	78	struct fio_file {
	79	struct flist_head hash_list;
	80	enum fio_filetype filetype;
	81
0e238572	82	int fd;
e6c4d732	83	int shadow_fd;
93bcfd20	84	#ifdef WIN32
03e20d68 BC	85	HANDLE hFile;
	86	HANDLE ioCP;
	87	#endif
d6aed795 JA	88
	89	/*
	90	* filename and possible memory mapping
	91	*/
d6aed795	92	unsigned int major, minor;
89ac1d48	93	int fileno;
d8f1f7d4	94	char *file_name;
d6aed795	95
d6aed795 JA	96	/*
d6aed795 JA	97	* size of the file, offset into file, and io size from that offset
79591fa9	98	* (be aware io_size is different from thread_options::io_size)
d6aed795	99	*/
293b8c1f JA	100	uint64_t real_file_size;
	101	uint64_t file_offset;
	102	uint64_t io_size;
d6aed795	103
bfbdd35b BVA	104	/*
	105	* Zoned block device information. See also zonemode=zbd.
	106	*/
	107	struct zoned_block_device_info *zbd_info;
fae3b9a0 AD	108	/* zonemode=zbd working area */
	109	uint32_t min_zone; /* inclusive */
	110	uint32_t max_zone; /* exclusive */
bfbdd35b	111
f1dfb668 JA	112	/*
	113	* Track last end and last start of IO for a given data direction
	114	*/
	115	uint64_t last_pos[DDIR_RWDIR_CNT];
	116	uint64_t last_start[DDIR_RWDIR_CNT];
d6aed795	117
293b8c1f JA	118	uint64_t first_write;
293b8c1f JA	119	uint64_t last_write;
44f29692	120
94a6e1bb JA	121	/*
	122	* Tracks the last iodepth number of completed writes, if data
	123	* verification is enabled
	124	*/
	125	uint64_t *last_write_comp;
	126	unsigned int last_write_idx;
	127
e943b878	128	/*
710bf9c5	129	* For use by the io engine for offset or private data storage
e943b878	130	*/
710bf9c5 TK	131	union {
	132	uint64_t engine_pos;
	133	void *engine_data;
	134	};
e943b878	135
d6aed795 JA	136	/*
	137	* if io is protected by a semaphore, this is set
	138	*/
d7df1d13	139	union {
971caeb1	140	struct fio_sem *lock;
d7df1d13 JA	141	struct fio_rwlock *rwlock;
d7df1d13 JA	142	};
d6aed795 JA	143
d6aed795 JA	144	/*
967d1b63	145	* block map or LFSR for random io
d6aed795	146	*/
967d1b63 JA	147	union {
	148	struct axmap *io_axmap;
	149	struct fio_lfsr lfsr;
	150	};
8055e41d	151
9c6f6316 JA	152	/*
	153	* Used for zipf random distribution
	154	*/
56d9fa4b JA	155	union {
	156	struct zipf_state zipf;
	157	struct gauss_state gauss;
	158	};
9c6f6316	159
d6aed795 JA	160	int references;
	161	enum fio_file_flags flags;
	162
	163	struct disk_util *du;
	164	};
	165
710bf9c5 TK	166	#define FILE_ENG_DATA(f) ((f)->engine_data)
710bf9c5 TK	167	#define FILE_SET_ENG_DATA(f, data) ((f)->engine_data = (data))
e19ccb55	168
d6aed795 JA	169	#define FILE_FLAG_FNS(name) \
	170	static inline void fio_file_set_##name(struct fio_file *f) \
	171	{ \
bea5c23d	172	(f)->flags = (enum fio_file_flags) ((f)->flags \| FIO_FILE_##name); \
d6aed795 JA	173	} \
	174	static inline void fio_file_clear_##name(struct fio_file *f) \
	175	{ \
bea5c23d	176	(f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name); \
d6aed795 JA	177	} \
	178	static inline int fio_file_##name(struct fio_file *f) \
	179	{ \
	180	return ((f)->flags & FIO_FILE_##name) != 0; \
	181	}
	182
	183	FILE_FLAG_FNS(open);
	184	FILE_FLAG_FNS(closing);
	185	FILE_FLAG_FNS(extend);
	186	FILE_FLAG_FNS(done);
	187	FILE_FLAG_FNS(size_known);
	188	FILE_FLAG_FNS(hashed);
ed47cbf7	189	FILE_FLAG_FNS(partial_mmap);
967d1b63 JA	190	FILE_FLAG_FNS(axmap);
967d1b63 JA	191	FILE_FLAG_FNS(lfsr);
6081231a	192	FILE_FLAG_FNS(smalloc);
d6aed795 JA	193	#undef FILE_FLAG_FNS
d6aed795 JA	194
4cd02b3f JA	195	/*
	196	* File setup/shutdown
	197	*/
	198	struct thread_data;
	199	extern void close_files(struct thread_data *);
	200	extern void close_and_free_files(struct thread_data *);
bedc9dc2	201	extern uint64_t get_start_offset(struct thread_data , struct fio_file );
4cd02b3f JA	202	extern int __must_check setup_files(struct thread_data *);
4cd02b3f JA	203	extern int __must_check file_invalidate_cache(struct thread_data , struct fio_file );
966fcbd4	204	#ifdef __cplusplus
	205	extern "C" {
	206	#endif
4cd02b3f JA	207	extern int __must_check generic_open_file(struct thread_data , struct fio_file );
	208	extern int __must_check generic_close_file(struct thread_data , struct fio_file );
	209	extern int __must_check generic_get_file_size(struct thread_data , struct fio_file );
966fcbd4	210	#ifdef __cplusplus
	211	}
	212	#endif
1ccc6dc7	213	extern int __must_check file_lookup_open(struct fio_file *f, int flags);
c139f3b4	214	extern bool __must_check pre_read_files(struct thread_data *);
a3f001f5	215	extern unsigned long long get_rand_file_size(struct thread_data *td);
5903e7b7	216	extern int add_file(struct thread_data , const char , int, int);
49ffb4a2	217	extern int add_file_exclusive(struct thread_data , const char );
4cd02b3f JA	218	extern void get_file(struct fio_file *);
4cd02b3f JA	219	extern int __must_check put_file(struct thread_data , struct fio_file );
e8462bd8	220	extern void put_file_log(struct thread_data , struct fio_file );
4cd02b3f JA	221	extern void lock_file(struct thread_data , struct fio_file , enum fio_ddir);
	222	extern void unlock_file(struct thread_data , struct fio_file );
	223	extern void unlock_file_all(struct thread_data , struct fio_file );
	224	extern int add_dir_files(struct thread_data , const char );
4d832322	225	extern bool init_random_map(struct thread_data *);
4cd02b3f JA	226	extern void dup_files(struct thread_data , struct thread_data );
	227	extern int get_fileno(struct thread_data , const char );
	228	extern void free_release_files(struct thread_data *);
bcbfeefa	229	extern void filesetup_mem_free(void);
8aa89d70	230	extern void fio_file_reset(struct thread_data , struct fio_file );
747b3105	231	extern bool fio_files_done(struct thread_data *);
04d6530f	232	extern bool exists_and_not_regfile(const char *);
47534cda	233	extern int fio_set_directio(struct thread_data , struct fio_file );
e711df54	234	extern void fio_file_free(struct fio_file *);
c592b9fe	235
d6aed795	236	#endif