149 lines
2.7 KiB
C
149 lines
2.7 KiB
C
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/*
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* exportfs.h - definitions for exporting file server
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*/
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#define DEBUG if(!dbg){}else fprint
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#define DFD 2
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#define fidhash(s) fhash[s%FHASHSIZE]
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#define Proc Exproc
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typedef struct Fsrpc Fsrpc;
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typedef struct Fid Fid;
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typedef struct File File;
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typedef struct Proc Proc;
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typedef struct Qidtab Qidtab;
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struct Fsrpc
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{
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int busy; /* Work buffer has pending rpc to service */
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int pid; /* Pid of slave process executing the rpc */
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int canint; /* Interrupt gate */
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int flushtag; /* Tag on which to reply to flush */
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Fcall work; /* Plan 9 incoming Fcall */
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uchar *buf; /* Data buffer */
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};
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struct Fid
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{
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int fid; /* system fd for i/o */
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File *f; /* File attached to this fid */
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int mode;
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int nr; /* fid number */
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int mid; /* Mount id */
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Fid *next; /* hash link */
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};
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struct File
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{
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char *name;
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int ref;
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Qid qid;
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Qidtab *qidt;
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int inval;
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File *parent;
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File *child;
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File *childlist;
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};
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struct Proc
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{
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int pid;
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int busy;
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Proc *next;
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};
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struct Qidtab
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{
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int ref;
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int type;
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int dev;
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vlong path;
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vlong uniqpath;
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Qidtab *next;
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};
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enum
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{
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MAXPROC = 50,
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FHASHSIZE = 64,
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Nr_workbufs = 50,
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Fidchunk = 1000,
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Npsmpt = 32,
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Nqidbits = 5,
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Nqidtab = (1<<Nqidbits),
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};
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#define Enomem Exenomem
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#define Ebadfix Exebadfid
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#define Enotdir Exenotdir
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#define Edupfid Exedupfid
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#define Eopen Exeopen
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#define Exmnt Exexmnt
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#define Emip Exemip
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#define Enopsmt Exenopsmt
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extern char Ebadfid[];
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extern char Enotdir[];
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extern char Edupfid[];
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extern char Eopen[];
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extern char Exmnt[];
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extern char Enomem[];
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extern char Emip[];
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extern char Enopsmt[];
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Extern Fsrpc *Workq;
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Extern int dbg;
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Extern File *root;
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Extern File *psmpt;
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Extern Fid **fhash;
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Extern Fid *fidfree;
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Extern Proc *Proclist;
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Extern char psmap[Npsmpt];
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Extern Qidtab *qidtab[Nqidtab];
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Extern ulong messagesize;
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Extern int srvfd;
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/* File system protocol service procedures */
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void Xattach(Fsrpc*);
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void Xauth(Fsrpc*);
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void Xclunk(Fsrpc*);
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void Xcreate(Fsrpc*);
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void Xflush(Fsrpc*);
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void Xnop(Fsrpc*);
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void Xremove(Fsrpc*);
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void Xstat(Fsrpc*);
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void Xversion(Fsrpc*);
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void Xwalk(Fsrpc*);
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void Xwstat(Fsrpc*);
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void slave(Fsrpc*);
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void reply(Fcall*, Fcall*, char*);
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Fid *getfid(int);
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int freefid(int);
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Fid *newfid(int);
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Fsrpc *getsbuf(void);
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void initroot(void);
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void fatal(char*, ...);
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char* makepath(File*, char*);
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File *file(File*, char*);
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void freefile(File*);
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void slaveopen(Fsrpc*);
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void slaveread(Fsrpc*);
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void slavewrite(Fsrpc*);
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void blockingslave(void*);
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void reopen(Fid *f);
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void noteproc(int, char*);
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void flushaction(void*, char*);
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void pushfcall(char*);
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Qidtab* uniqueqid(Dir*);
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void freeqid(Qidtab*);
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char* estrdup(char*);
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void* emallocz(uint);
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int readmessage(int, char*, int);
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#define notify
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#define noted
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#define exits
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