diff --git a/servers/slapd/daemon.c b/servers/slapd/daemon.c index efdef869f5a464a93b887e957f57c5735a913c47..fffbad20fc8144df8a3a9044413b0444e1128458 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); } @@ -859,7 +860,7 @@ slapd_daemon_task( slap_ssf_t ssf = 0; char *authid = NULL; - char *dnsname; + char *dnsname = NULL; char *peeraddr; #ifdef LDAP_PF_LOCAL char peername[MAXPATHLEN + sizeof("PATH=")]; @@ -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;