defs.h

struct buf;
struct context;
struct file;
struct inode;
struct pipe;
struct proc;
struct spinlock;
struct sleeplock;
struct stat;
struct superblock;

// bio.c
void            binit(void);
struct buf*     bread(uint, uint);
void            brelse(struct buf*);
void            bwrite(struct buf*);
void            bpin(struct buf*);
void            bunpin(struct buf*);

// console.c
void            consoleinit(void);
void            consoleintr(int);
void            consputc(int);

// exec.c
int             exec(char*, char**);

// file.c
struct file*    filealloc(void);
void            fileclose(struct file*);
struct file*    filedup(struct file*);
void            fileinit(void);
int             fileread(struct file*, uint64, int n);
int             filestat(struct file*, uint64 addr);
int             filewrite(struct file*, uint64, int n);

// fs.c
void            fsinit(int);
int             dirlink(struct inode*, char*, uint);
struct inode*   dirlookup(struct inode*, char*, uint*);
struct inode*   ialloc(uint, short);
struct inode*   idup(struct inode*);
void            iinit();
void            ilock(struct inode*);
void            iput(struct inode*);
void            iunlock(struct inode*);
void            iunlockput(struct inode*);
void            iupdate(struct inode*);
int             namecmp(const char*, const char*);
struct inode*   namei(char*);
struct inode*   nameiparent(char*, char*);
int             readi(struct inode*, int, uint64, uint, uint);
void            stati(struct inode*, struct stat*);
int             writei(struct inode*, int, uint64, uint, uint);
void            itrunc(struct inode*);

// ramdisk.c
void            ramdiskinit(void);
void            ramdiskintr(void);
void            ramdiskrw(struct buf*);

// kalloc.c
void*           kalloc(void);
void            kfree(void *);
void            kinit(void);

// log.c
void            initlog(int, struct superblock*);
void            log_write(struct buf*);
void            begin_op(void);