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TOMOYO Linux Cross Reference
Linux/include/linux/sunrpc/svcsock.h

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  1 /*
  2  * linux/include/linux/sunrpc/svcsock.h
  3  *
  4  * RPC server socket I/O.
  5  *
  6  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
  7  */
  8 
  9 #ifndef SUNRPC_SVCSOCK_H
 10 #define SUNRPC_SVCSOCK_H
 11 
 12 #include <linux/sunrpc/svc.h>
 13 
 14 /*
 15  * RPC server socket.
 16  */
 17 struct svc_sock {
 18         struct list_head        sk_ready;       /* list of ready sockets */
 19         struct list_head        sk_list;        /* list of all sockets */
 20         struct socket *         sk_sock;        /* berkeley socket layer */
 21         struct sock *           sk_sk;          /* INET layer */
 22 
 23         struct svc_serv *       sk_server;      /* service for this socket */
 24         unsigned int            sk_inuse;       /* use count */
 25         unsigned long           sk_flags;
 26 #define SK_BUSY         0                       /* enqueued/receiving */
 27 #define SK_CONN         1                       /* conn pending */
 28 #define SK_CLOSE        2                       /* dead or dying */
 29 #define SK_DATA         3                       /* data pending */
 30 #define SK_TEMP         4                       /* temp (TCP) socket */
 31 #define SK_DEAD         6                       /* socket closed */
 32 #define SK_CHNGBUF      7                       /* need to change snd/rcv buffer sizes */
 33 #define SK_DEFERRED     8                       /* request on sk_deferred */
 34 
 35         int                     sk_reserved;    /* space on outq that is reserved */
 36 
 37         struct list_head        sk_deferred;    /* deferred requests that need to
 38                                                  * be revisted */
 39         struct semaphore        sk_sem;         /* to serialize sending data */
 40 
 41         int                     (*sk_recvfrom)(struct svc_rqst *rqstp);
 42         int                     (*sk_sendto)(struct svc_rqst *rqstp);
 43 
 44         /* We keep the old state_change and data_ready CB's here */
 45         void                    (*sk_ostate)(struct sock *);
 46         void                    (*sk_odata)(struct sock *, int bytes);
 47         void                    (*sk_owspace)(struct sock *);
 48 
 49         /* private TCP part */
 50         int                     sk_reclen;      /* length of record */
 51         int                     sk_tcplen;      /* current read length */
 52         time_t                  sk_lastrecv;    /* time of last received request */
 53 };
 54 
 55 /*
 56  * Function prototypes.
 57  */
 58 int             svc_makesock(struct svc_serv *, int, unsigned short);
 59 void            svc_delete_socket(struct svc_sock *);
 60 int             svc_recv(struct svc_serv *, struct svc_rqst *, long);
 61 int             svc_send(struct svc_rqst *);
 62 void            svc_drop(struct svc_rqst *);
 63 void            svc_sock_update_bufs(struct svc_serv *serv);
 64 
 65 #endif /* SUNRPC_SVCSOCK_H */
 66 

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