70 lines
1.1 KiB
C
70 lines
1.1 KiB
C
typedef struct MLock MLock;
|
|
typedef struct Iosect Iosect;
|
|
typedef struct Iotrack Iotrack;
|
|
typedef struct Track Track;
|
|
typedef struct Xfs Xfs;
|
|
|
|
struct MLock
|
|
{
|
|
char key;
|
|
};
|
|
|
|
struct Iosect
|
|
{
|
|
Iosect *next;
|
|
short flags;
|
|
MLock lock;
|
|
Iotrack *t;
|
|
uchar * iobuf;
|
|
};
|
|
|
|
struct Iotrack
|
|
{
|
|
short flags;
|
|
Xfs * xf;
|
|
vlong addr;
|
|
Iotrack *next; /* in lru list */
|
|
Iotrack *prev;
|
|
Iotrack *hnext; /* in hash list */
|
|
Iotrack *hprev;
|
|
MLock lock;
|
|
int ref;
|
|
Track *tp;
|
|
};
|
|
|
|
enum{
|
|
Sectorsize = 512,
|
|
Sect2trk = 9,
|
|
Trksize = Sectorsize*Sect2trk
|
|
};
|
|
|
|
struct Track
|
|
{
|
|
Iosect *p[Sect2trk];
|
|
uchar buf[Sect2trk][Sectorsize];
|
|
};
|
|
|
|
#define BMOD (1<<0)
|
|
#define BIMM (1<<1)
|
|
#define BSTALE (1<<2)
|
|
|
|
Iosect* getiosect(Xfs*, vlong, int);
|
|
Iosect* getosect(Xfs*, vlong);
|
|
Iosect* getsect(Xfs*, vlong);
|
|
Iosect* newsect(void);
|
|
Iotrack* getiotrack(Xfs*, vlong);
|
|
int canmlock(MLock*);
|
|
int devcheck(Xfs*);
|
|
int devread(Xfs*, vlong, void*, long);
|
|
int devwrite(Xfs*, vlong, void*, long);
|
|
int tread(Iotrack*);
|
|
int twrite(Iotrack*);
|
|
void freesect(Iosect*);
|
|
void iotrack_init(void);
|
|
void mlock(MLock*);
|
|
void purgebuf(Xfs*);
|
|
void purgetrack(Iotrack*);
|
|
void putsect(Iosect*);
|
|
void sync(void);
|
|
void unmlock(MLock*);
|