From 2165de59052c6da25468a2da2d6b50e4fe8f9c1e Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Fri, 26 Oct 2001 06:47:04 +0000
Subject: [PATCH] Suck in enfile/emfile patch from HEAD.
---
servers/slapd/daemon.c | 42 +++++++++++++++++++++++++++++++++++-------
1 file changed, 35 insertions(+), 7 deletions(-)
diff --git a/servers/slapd/daemon.c b/servers/slapd/daemon.c
index efdef869f5..8c836f3881 100644
--- a/servers/slapd/daemon.c
+++ b/servers/slapd/daemon.c
@@ -717,6 +717,7 @@ slapd_daemon_task(
ber_socket_t nfds;
#define SLAPD_EBADF_LIMIT 16
int ebadf = 0;
+ int emfile = 0;
#define SLAPD_IDLE_CHECK_LIMIT 4
time_t now = slap_get_time();
@@ -727,14 +728,14 @@ slapd_daemon_task(
Sockaddr from;
#if defined(SLAPD_RLOOKUPS)
- struct hostent *hp;
+ struct hostent *hp;
#endif
struct timeval zero;
struct timeval *tvp;
- if( global_idletimeout > 0 && difftime(
+ if( emfile || ( global_idletimeout > 0 && difftime(
last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT,
- now ) < 0 )
+ now ) < 0 ))
{
connections_timeout_idle(now);
}
@@ -881,13 +882,39 @@ slapd_daemon_task(
(struct sockaddr *) &from, &len );
if ( s == AC_SOCKET_INVALID ) {
int err = sock_errno();
- Debug( LDAP_DEBUG_ANY,
- "daemon: accept(%ld) failed errno=%d (%s)\n",
- (long) slap_listeners[l]->sl_sd, err,
- sock_errstr(err) );
+
+#ifdef EMFILE
+ if( err == EMFILE ) {
+ emfile++;
+ } else
+#endif
+#ifdef ENFILE
+ if( err == ENFILE ) {
+ emfile++;
+ } else
+#endif
+ {
+ emfile=0;
+ }
+
+ if( emfile < 3 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "daemon: accept(%ld) failed errno=%d (%s)\n",
+ (long) slap_listeners[l]->sl_sd, err,
+ sock_errstr(err) );
+ } else {
+ /* prevent busy loop */
+# ifdef HAVE_USLEEP
+ if( emfile % 4 == 3 ) usleep( 250 );
+# else
+ if( emfile % 8 == 7 ) sleep( 1 );
+# endif
+ }
+
ldap_pvt_thread_yield();
continue;
}
+ emfile = 0;
#ifndef HAVE_WINSOCK
/* make sure descriptor number isn't too great */
@@ -895,6 +922,7 @@ slapd_daemon_task(
Debug( LDAP_DEBUG_ANY,
"daemon: %ld beyond descriptor table size %ld\n",
(long) s, (long) dtblsize, 0 );
+
slapd_close(s);
ldap_pvt_thread_yield();
continue;
--
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