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/*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <errno.h>
#include <time.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;
int re_notify = 0;
/*
* 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;
if (re_notify) {
change_state();
dprintf(N_DEBUG, "Notifying...(new state %d)",
MY_STATE);
notify_hosts();
re_notify = 0;
}
/* 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(N_DEBUG, "Waiting for reply... (timeo %d)",
tv.tv_sec);
selret = select(FD_SETSIZE, &readfds,
(void *) 0, (void *) 0, &tv);
} else if (run_mode & MODE_NOTIFY_ONLY)
return;
else {
dprintf(N_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;
note(N_ERROR, "my_svc_run() - select: %s",
strerror (errno));
return;
case 0:
/* A notify/callback timed out. */
continue;
default:
selret -= process_reply(&readfds);
if (selret)
svc_getreqset(&readfds);
}
}
}
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