aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/sunrpc/svcsock.h
blob: d33c6face032fd2643cad8ffee544a6a32564b1c (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
/*
 * linux/include/linux/sunrpc/svcsock.h
 *
 * RPC server socket I/O.
 *
 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
 */

#ifndef SUNRPC_SVCSOCK_H
#define SUNRPC_SVCSOCK_H

#include <linux/sunrpc/svc.h>

/*
 * RPC server socket.
 */
struct svc_sock {
	struct list_head	sk_ready;	/* list of ready sockets */
	struct list_head	sk_list;	/* list of all sockets */
	struct socket *		sk_sock;	/* berkeley socket layer */
	struct sock *		sk_sk;		/* INET layer */

	struct svc_serv *	sk_server;	/* service for this socket */
	unsigned int		sk_inuse;	/* use count */
	unsigned long		sk_flags;
#define	SK_BUSY		0			/* enqueued/receiving */
#define	SK_CONN		1			/* conn pending */
#define	SK_CLOSE	2			/* dead or dying */
#define	SK_DATA		3			/* data pending */
#define	SK_TEMP		4			/* temp (TCP) socket */
#define	SK_DEAD		6			/* socket closed */
#define	SK_CHNGBUF	7			/* need to change snd/rcv buffer sizes */
#define	SK_DEFERRED	8			/* request on sk_deferred */

	int			sk_reserved;	/* space on outq that is reserved */

	struct list_head	sk_deferred;	/* deferred requests that need to
						 * be revisted */
	struct semaphore        sk_sem;		/* to serialize sending data */

	int			(*sk_recvfrom)(struct svc_rqst *rqstp);
	int			(*sk_sendto)(struct svc_rqst *rqstp);

	/* We keep the old state_change and data_ready CB's here */
	void			(*sk_ostate)(struct sock *);
	void			(*sk_odata)(struct sock *, int bytes);
	void			(*sk_owspace)(struct sock *);

	/* private TCP part */
	int			sk_reclen;	/* length of record */
	int			sk_tcplen;	/* current read length */
	time_t			sk_lastrecv;	/* time of last received request */
};

/*
 * Function prototypes.
 */
int		svc_makesock(struct svc_serv *, int, unsigned short);
void		svc_delete_socket(struct svc_sock *);
int		svc_recv(struct svc_serv *, struct svc_rqst *, long);
int		svc_send(struct svc_rqst *);
void		svc_drop(struct svc_rqst *);
void		svc_sock_update_bufs(struct svc_serv *serv);

#endif /* SUNRPC_SVCSOCK_H */