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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
// -*- c++ -*-
/*
Copyright (C) 1991 Peter Bersen
This file is part of the rpc++ Library. This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version. This library is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
Modified and partially rewritten March 1992 by Michael N. Lipp,
mnl@dtro.e-technik.th-darmstadt.de. The original copyright terms and
conditions apply without change to any modified or new parts.
*/
#ifndef _RPCSERVICE_H_
#define _RPCSERVICE_H_
static char _rpcpp_service_h_[]
= "service.h,v 2.3 1992/06/15 19:13:30 mnl Exp";
// service.h,v
// Revision 2.3 1992/06/15 19:13:30 mnl
// Fixed a few bugs, clarified interface.
//
// Revision 2.2 1992/06/13 14:27:41 mnl
// Adapted to (patched) gcc-2.2. Fixed several bugs.
//
// Revision 2.1.1.1 1992/03/08 13:28:43 mnl
// Initial mnl version.
//
#ifdef __GNUG__
#pragma interface
#endif
#undef TRUE
#undef FALSE
#include <bool.h>
#include "request.h"
#include "callback.h"
class RpcRegistered;
class RpcService
{
public:
typedef enum
{ noError, reconstructionAttempt, cantCreateTCPService,
cantRegisterService, notRegistered, cantGetArgs,
invalidResult, cantSendReply, cantFreeArgs, selectError,
} errorCode;
// Get state
inline virtual bool OK ()
{ return errorState == noError; }
// Construct a service object for service prog, version vers
RpcService (u_long prog, u_long vers);
// Construct a transient service object for version vers
RpcService (u_long vers);
// Destruct the service
virtual ~RpcService ();
// Get the program number (normally used after construction of transient)
u_long Program ();
// Register an object and its method to be called on request
virtual void Register (const RpcRequest&, const AnyRpcCallback&);
// The link to RPC
virtual void Dispatch (svc_req* req, SVCXPRT* transp);
// Provide the service. Never returns.
void Provide ();
// Get caller. May be called during execution of a service routine.
inline struct sockaddr_in* Caller ()
{ return svc_getcaller (xprt); }
char* CallerName ();
// Reply before return
void Reply (void* res);
void Reply ();
// Quit provide loop
void Interrupt ();
private:
// Save the address of the one and only RpcService in the process.
// There may be only one RpcService, because we can register a program
// with svc_register (method RpcServiceCallback) but we can't make
// the svc function give an argument to this function when doing a
// callback, which means that we can't have it distinguish between
// various instances of RpcService.
static RpcService* me;
static inline void RpcServiceCallback (svc_req* req, SVCXPRT* transp)
{ RpcService::me->Dispatch (req, transp); }
protected:
void init ();
void HandleError (errorCode e);
errorCode errorState;
u_long prog;
u_long vers;
RpcRegistered** handlers;
int maxHandlerIndex;
SVCXPRT* xprt;
RpcRequest* rpcreq;
bool quitLoop;
char* inbuf;
int inmax;
bool haveReplied;
// Default error handling prints a message and exit(2)s.
virtual void HandleError ();
};
inline void RpcService::HandleError (errorCode e)
{ errorState = e; HandleError (); }
inline u_long RpcService::Program ()
{ return prog; }
inline void RpcService::Reply ()
{ Reply (0); }
inline void RpcService::Interrupt ()
{ quitLoop = TRUE; }
#endif
|
