-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathlogstor.h
83 lines (71 loc) · 2.27 KB
/
logstor.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
/*
Author: Wuyang Chung
e-mail: [email protected]
*/
#if __linux
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
typedef unsigned long uint64_t;
//typedef char int8_t;
typedef short int16_t;
typedef int int32_t;
typedef long int64_t;
#endif
#define MY_DEBUG
//#define FBUF_DEBUG
#if __linux
#define DISK_FILE "/home/wyc/mnt/Downloads/logstor.del"
//#define DISK_FILE "/media/wyc/500G/logstor.storage"
#elif __BSD_VISIBLE
#define DISK_FILE "/dev/ada1"
#else
#error "DISK_FILE"
#endif
#if defined(MY_DEBUG)
void my_debug(const char * fname, int line_num, bool bl_panic);
void my_break(void);
#define MY_ASSERT(x) do if (!(x)) my_debug(__func__, __LINE__, true); while(0)
#define MY_BREAK(x) do if ((x)) my_break(); while(0)
#define MY_PANIC() my_debug(__FILE__, __LINE__, true)
#else
#define MY_ASSERT(x)
#define MY_BREAK(x)
#define MY_PANIC()
#endif
#define SECTOR_SIZE 0x1000 // 4K
#if defined(MY_DEBUG)
extern uint32_t sa_rw; // the sector address for _logstor_read_one/_logstor_write_one
#endif
extern uint32_t gdb_cond0; // for debug
extern uint32_t gdb_cond1; // for debug
void logstor_superblock_init(const char *disk_file);
void logstor_init(void);
void logstor_fini(void);
int logstor_open(const char *disk_file);
void logstor_close(void);
int logstor_read (off_t offset, void *data, off_t length);
int logstor_write (off_t offset, void *data, off_t length);
int logstor_delete(off_t offset, void *data, off_t length);
uint32_t logstor_get_block_cnt(void);
//void logstor_check(void);
unsigned logstor_get_data_write_count(void);
unsigned logstor_get_other_write_count(void);
unsigned logstor_get_fbuf_hit(void);
unsigned logstor_get_fbuf_miss(void);
// for logstor test
int logstor_read_test(uint32_t ba, void *data);
int logstor_write_test(uint32_t ba, void *data);
#if defined(WYC)
#define roundup2(x, y) (((x)+((y)-1))&~((y)-1))
#define rounddown2(x, y) ((x)&~((y)-1))
typedef int ssize_t;
typedef unsigned time_t;
void *memcpy(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
time_t time(time_t *t);
void srandom(unsigned int seed);
long int random(void);
int printf(const char *format, ...);
void assert(scalar expression);
#endif