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
|
/*
* Copyright (C) 1984 Sun Microsystems, Inc.
* Modified by Jeffrey A. Uphoff, 1995, 1997-1999.
* Modified by Olaf Kirch, 1996.
*
* NSM for Linux.
*/
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
/*
* This has been modified for my own evil purposes to prevent deadlocks
* when two hosts start NSM's simultaneously and try to notify each
* other (which mainly occurs during testing), or to stop and smell the
* roses when I have callbacks due.
* --Jeff Uphoff.
*/
/*
* This is the RPC server side idle loop.
* Wait for input, call server program.
*/
#include "config.h"
#include <errno.h>
#include "statd.h"
#include "notlist.h"
static int svc_stop = 0;
/*
* This is the global notify list onto which all SM_NOTIFY and CALLBACK
* requests are put.
*/
notify_list * notify = NULL;
/*
* Jump-off function.
*/
void
my_svc_exit(void)
{
svc_stop = 1;
}
/*
* The heart of the server. A crib from libc for the most part...
*/
void
my_svc_run(void)
{
FD_SET_TYPE readfds;
int selret;
time_t now;
svc_stop = 0;
for (;;) {
if (svc_stop)
return;
/* Ah, there are some notifications to be processed */
while (notify && NL_WHEN(notify) <= time(&now)) {
process_notify_list();
}
readfds = SVC_FDSET;
if (notify) {
struct timeval tv;
tv.tv_sec = NL_WHEN(notify) - now;
tv.tv_usec = 0;
dprintf(L_DEBUG, "Waiting for reply... (timeo %d)",
tv.tv_sec);
selret = select(FD_SETSIZE, &readfds,
(void *) 0, (void *) 0, &tv);
} else {
dprintf(L_DEBUG, "Waiting for client connections.");
selret = select(FD_SETSIZE, &readfds,
(void *) 0, (void *) 0, (struct timeval *) 0);
}
switch (selret) {
case -1:
if (errno == EINTR || errno == ECONNREFUSED
|| errno == ENETUNREACH || errno == EHOSTUNREACH)
continue;
log(L_ERROR, "my_svc_run() - select: %m");
return;
case 0:
/* A notify/callback timed out. */
continue;
default:
selret -= process_reply(&readfds);
if (selret)
svc_getreqset(&readfds);
}
}
}
|
