[fio.git] / verify-state.h

#ifndef FIO_VERIFY_STATE_H
#define FIO_VERIFY_STATE_H

#include <stdint.h>
#include <string.h>

struct thread_rand32_state {
	uint32_t s[4];
};

struct thread_rand64_state {
	uint64_t s[6];
};

struct thread_rand_state {
	uint64_t use64;
	union {
		struct thread_rand32_state state32;
		struct thread_rand64_state state64;
	};
};

/*
 * For dumping current write state
 */
struct file_comp {
	uint64_t fileno;
	uint64_t offset;
};

struct thread_io_list {
	uint64_t no_comps;
	uint32_t depth;
	uint32_t nofiles;
	uint64_t numberio;
	uint64_t index;
	struct thread_rand_state rand;
	uint8_t name[64];
	struct file_comp comps[0];
};

struct all_io_list {
	uint64_t threads;
	struct thread_io_list state[0];
};

#define VSTATE_HDR_VERSION	0x03

struct verify_state_hdr {
	uint64_t version;
	uint64_t size;
	uint64_t crc;
};

#define IO_LIST_ALL		0xffffffff

struct io_u;
extern struct all_io_list *get_all_io_list(int, size_t *);
extern void __verify_save_state(struct all_io_list *, const char *);
extern void verify_save_state(int mask);
extern int verify_load_state(struct thread_data *, const char *);
extern void verify_free_state(struct thread_data *);
extern int verify_state_should_stop(struct thread_data *, struct io_u *);
extern void verify_assign_state(struct thread_data *, void *);
extern int verify_state_hdr(struct verify_state_hdr *, struct thread_io_list *);

static inline size_t __thread_io_list_sz(uint32_t depth, uint32_t nofiles)
{
	return sizeof(struct thread_io_list) + depth * nofiles * sizeof(struct file_comp);
}

static inline size_t thread_io_list_sz(struct thread_io_list *s)
{
	return __thread_io_list_sz(le32_to_cpu(s->depth), le32_to_cpu(s->nofiles));
}

static inline struct thread_io_list *io_list_next(struct thread_io_list *s)
{
	return (void *) s + thread_io_list_sz(s);
}

static inline void verify_state_gen_name(char *out, size_t size,
					 const char *name, const char *prefix,
					 int num)
{
	char ename[PATH_MAX];
	char *ptr;

	/*
	 * Escape '/', just turn them into '.'
	 */
	ptr = ename;
	do {
		*ptr = *name;
		if (*ptr == '\0')
			break;
		else if (*ptr == '/')
			*ptr = '.';
		ptr++;
		name++;
	} while (1);

	snprintf(out, size, "%s-%s-%d-verify.state", prefix, ename, num);
	out[size - 1] = '\0';
}

#endif
Commit	Line	Data
	1	#ifndef FIO_VERIFY_STATE_H
	2	#define FIO_VERIFY_STATE_H
	3
	4	#include <stdint.h>
	5	#include <string.h>
	6
	7	struct thread_rand32_state {
	8	uint32_t s[4];
	9	};
	10
	11	struct thread_rand64_state {
	12	uint64_t s[6];
	13	};
	14
	15	struct thread_rand_state {
	16	uint64_t use64;
	17	union {
	18	struct thread_rand32_state state32;
	19	struct thread_rand64_state state64;
	20	};
	21	};
	22
	23	/*
	24	* For dumping current write state
	25	*/
	26	struct file_comp {
	27	uint64_t fileno;
	28	uint64_t offset;
	29	};
	30
	31	struct thread_io_list {
	32	uint64_t no_comps;
	33	uint32_t depth;
	34	uint32_t nofiles;
	35	uint64_t numberio;
	36	uint64_t index;
	37	struct thread_rand_state rand;
	38	uint8_t name[64];
	39	struct file_comp comps[0];
	40	};
	41
	42	struct all_io_list {
	43	uint64_t threads;
	44	struct thread_io_list state[0];
	45	};
	46
	47	#define VSTATE_HDR_VERSION 0x03
	48
	49	struct verify_state_hdr {
	50	uint64_t version;
	51	uint64_t size;
	52	uint64_t crc;
	53	};
	54
	55	#define IO_LIST_ALL 0xffffffff
	56
	57	struct io_u;
	58	extern struct all_io_list get_all_io_list(int, size_t );
	59	extern void __verify_save_state(struct all_io_list , const char );
	60	extern void verify_save_state(int mask);
	61	extern int verify_load_state(struct thread_data , const char );
	62	extern void verify_free_state(struct thread_data *);
	63	extern int verify_state_should_stop(struct thread_data , struct io_u );
	64	extern void verify_assign_state(struct thread_data , void );
	65	extern int verify_state_hdr(struct verify_state_hdr , struct thread_io_list );
	66
	67	static inline size_t __thread_io_list_sz(uint32_t depth, uint32_t nofiles)
	68	{
	69	return sizeof(struct thread_io_list) + depth * nofiles * sizeof(struct file_comp);
	70	}
	71
	72	static inline size_t thread_io_list_sz(struct thread_io_list *s)
	73	{
	74	return __thread_io_list_sz(le32_to_cpu(s->depth), le32_to_cpu(s->nofiles));
	75	}
	76
	77	static inline struct thread_io_list io_list_next(struct thread_io_list s)
	78	{
	79	return (void *) s + thread_io_list_sz(s);
	80	}
	81
	82	static inline void verify_state_gen_name(char *out, size_t size,
	83	const char name, const char prefix,
	84	int num)
	85	{
	86	char ename[PATH_MAX];
	87	char *ptr;
	88
	89	/*
	90	* Escape '/', just turn them into '.'
	91	*/
	92	ptr = ename;
	93	do {
	94	ptr = name;
	95	if (*ptr == '\0')
	96	break;
	97	else if (*ptr == '/')
	98	*ptr = '.';
	99	ptr++;
	100	name++;
	101	} while (1);
	102
	103	snprintf(out, size, "%s-%s-%d-verify.state", prefix, ename, num);
	104	out[size - 1] = '\0';
	105	}
	106
	107	#endif