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/* $NetBSD: svc_run.c,v 1.22 2013/03/11 20:19:29 tron Exp $ */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the "Oracle America, Inc." nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char *sccsid = "@(#)svc_run.c 1.1 87/10/13 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)svc_run.c 2.1 88/07/29 4.0 RPCSRC";
#else
__RCSID("$NetBSD: svc_run.c,v 1.22 2013/03/11 20:19:29 tron Exp $");
#endif
#endif
/*
* This is the rpc server side idle loop
* Wait for input, call server program.
*/
#include "namespace.h"
#include "reentrant.h"
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include "svc_fdset.h"
#include "rpc_internal.h"
#ifdef __weak_alias
__weak_alias(svc_run,_svc_run)
__weak_alias(svc_exit,_svc_exit)
#endif
void
svc_run(void)
{
fd_set readfds, cleanfds;
struct timeval timeout;
int maxfd;
#ifndef RUMP_RPC
int probs = 0;
#endif
#ifdef _REENTRANT
extern rwlock_t svc_fd_lock;
#endif
timeout.tv_sec = 30;
timeout.tv_usec = 0;
for (;;) {
rwlock_rdlock(&svc_fd_lock);
readfds = *get_fdset();
cleanfds = *get_fdset();
maxfd = *get_fdsetmax();
rwlock_unlock(&svc_fd_lock);
switch (select(maxfd + 1, &readfds, NULL, NULL, &timeout)) {
case -1:
#ifndef RUMP_RPC
if ((errno == EINTR || errno == EBADF) && probs < 100) {
probs++;
continue;
}
#endif
if (errno == EINTR) {
continue;
}
warn("%s: select failed", __func__);
return;
case 0:
__svc_clean_idle(&cleanfds, 30, FALSE);
continue;
default:
svc_getreqset(&readfds);
#ifndef RUMP_RPC
probs = 0;
#endif
}
}
}
/*
* This function causes svc_run() to exit by telling it that it has no
* more work to do.
*/
void
svc_exit(void)
{
#ifdef _REENTRANT
extern rwlock_t svc_fd_lock;
#endif
rwlock_wrlock(&svc_fd_lock);
FD_ZERO(get_fdset());
rwlock_unlock(&svc_fd_lock);
}
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