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- /*
- * exportfs.h - definitions for exporting file server
- */
- #define DEBUG if(!dbg){}else fprint
- #define DFD 9
- #define fidhash(s) fhash[s%FHASHSIZE]
- typedef struct Fsrpc Fsrpc;
- typedef struct Fid Fid;
- typedef struct File File;
- typedef struct Proc Proc;
- typedef struct Qidtab Qidtab;
- struct Fsrpc
- {
- int busy; /* Work buffer has pending rpc to service */
- uintptr pid; /* Pid of slave process executing the rpc */
- int canint; /* Interrupt gate */
- int flushtag; /* Tag on which to reply to flush */
- Fcall work; /* Plan 9 incoming Fcall */
- uchar *buf; /* Data buffer */
- };
- struct Fid
- {
- int fid; /* system fd for i/o */
- File *f; /* File attached to this fid */
- int mode;
- int nr; /* fid number */
- int mid; /* Mount id */
- Fid *next; /* hash link */
- /* for preaddir -- ARRGH! */
- Dir *dir; /* buffer for reading directories */
- int ndir; /* number of entries in dir */
- int cdir; /* number of consumed entries in dir */
- int gdir; /* glue index */
- vlong offset; /* offset in virtual directory */
- };
- struct File
- {
- char *name;
- int ref;
- Qid qid;
- Qidtab *qidt;
- int inval;
- File *parent;
- File *child;
- File *childlist;
- };
- struct Proc
- {
- uintptr pid;
- int busy;
- Proc *next;
- };
- struct Qidtab
- {
- int ref;
- int type;
- int dev;
- vlong path;
- vlong uniqpath;
- Qidtab *next;
- };
- enum
- {
- MAXPROC = 50,
- FHASHSIZE = 64,
- Nr_workbufs = 50,
- Fidchunk = 1000,
- Npsmpt = 32,
- Nqidbits = 5,
- Nqidtab = (1<<Nqidbits),
- };
- char Ebadfid[];
- char Enotdir[];
- char Edupfid[];
- char Eopen[];
- char Exmnt[];
- char Enomem[];
- char Emip[];
- char Enopsmt[];
- Extern Fsrpc *Workq;
- Extern int dbg;
- Extern File *root;
- Extern File *psmpt;
- Extern Fid **fhash;
- Extern Fid *fidfree;
- Extern Proc *Proclist;
- Extern char psmap[Npsmpt];
- Extern Qidtab *qidtab[Nqidtab];
- Extern ulong messagesize;
- Extern char Enomem[];
- Extern int srvfd;
- Extern char* patternfile;
- /* File system protocol service procedures */
- void Xattach(Fsrpc*);
- void Xauth(Fsrpc*);
- void Xclunk(Fsrpc*);
- void Xcreate(Fsrpc*);
- void Xflush(Fsrpc*);
- void Xnop(Fsrpc*);
- void Xremove(Fsrpc*);
- void Xstat(Fsrpc*);
- void Xversion(Fsrpc*);
- void Xwalk(Fsrpc*);
- void Xwstat(Fsrpc*);
- void slave(Fsrpc*);
- void reply(Fcall*, Fcall*, char*);
- Fid *getfid(int);
- int freefid(int);
- Fid *newfid(int);
- Fsrpc *getsbuf(void);
- void initroot(void);
- void fatal(char*, ...);
- char* makepath(File*, char*);
- File *file(File*, char*);
- void freefile(File*);
- void slaveopen(Fsrpc*);
- void slaveread(Fsrpc*);
- void slavewrite(Fsrpc*);
- void blockingslave(void);
- void reopen(Fid *f);
- void noteproc(int, char*);
- void flushaction(void*, char*);
- void pushfcall(char*);
- Qidtab* uniqueqid(Dir*);
- void freeqid(Qidtab*);
- char* estrdup(char*);
- void* emallocz(uint);
- int readmessage(int, char*, int);
- void exclusions(void);
- int excludefile(char*);
- int preaddir(Fid*, uchar*, int, vlong);
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