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#ifndef _UTIL_H
#define _UTIL_H
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
/* linux kernel style types: */
#include <asm/types.h>
typedef __u8 u8;
typedef __u16 u16;
typedef __u32 u32;
typedef __u64 u64;
typedef __s8 s8;
typedef __s16 s16;
typedef __s32 s32;
typedef __s64 s64;
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
(void) (&_min1 == &_min2); \
_min1 < _min2 ? _min1 : _min2; })
#define max(x, y) ({ \
typeof(x) _max1 = (x); \
typeof(y) _max2 = (y); \
(void) (&_max1 == &_max2); \
_max1 > _max2 ? _max1 : _max2; })
#define die(arg, ...) \
do { \
fprintf(stderr, arg "\n", ##__VA_ARGS__); \
exit(EXIT_FAILURE); \
} while (0)
u64 rounddown_pow_of_two(u64);
unsigned ilog2(u64);
char *skip_spaces(const char *str);
char *strim(char *s);
long strtoul_or_die(const char *, size_t, const char *);
u64 hatoi(const char *);
unsigned hatoi_validate(const char *, const char *);
unsigned nr_args(char * const *);
char *read_file_str(int, const char *);
u64 read_file_u64(int, const char *);
ssize_t read_string_list(const char *, const char * const[]);
ssize_t read_string_list_or_die(const char *, const char * const[],
const char *);
void print_string_list(const char * const[], size_t);
u64 get_size(const char *, int);
unsigned get_blocksize(const char *, int);
int dev_open(const char *);
#include "bcache-ondisk.h"
#include "bcache-ioctl.h"
u64 bch_checksum(unsigned, const void *, size_t);
#define __bkey_idx(_set, _offset) \
((_set)->_data + (_offset))
#define __bset_bkey_last(_set) \
__bkey_idx((_set), (_set)->u64s)
#define __csum_set(i, u64s, type) \
({ \
const void *start = ((const void *) (i)) + sizeof(u64); \
const void *end = __bkey_idx(i, u64s); \
\
bch_checksum(type, start, end - start); \
})
#define csum_set(i, type) __csum_set(i, (i)->u64s, type)
int bcachectl_open(void);
#include <dirent.h>
struct bcache_handle {
DIR *sysfs;
int fd;
};
struct bcache_handle bcache_fs_open(const char *);
#endif /* _UTIL_H */
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