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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* Portions of this software are based upon public domain software
* originally written at the National Center for Supercomputing Applications,
* University of Illinois, Urbana-Champaign.
*/
#ifndef APACHE_MPM_DEFAULT_H
#define APACHE_MPM_DEFAULT_H
#define AP_ID_FROM_CHILD_THREAD(c, t) ((c * HARD_THREAD_LIMIT) + t)
#define AP_CHILD_THREAD_FROM_ID(i) (i / HARD_THREAD_LIMIT), (i % HARD_THREAD_LIMIT)
/* Number of servers to spawn off by default --- also, if fewer than
* this free when the caretaker checks, it will spawn more.
*/
#ifndef DEFAULT_START_DAEMON
#define DEFAULT_START_DAEMON 5
#endif
/* Maximum number of *free* server processes --- more than this, and
* they will die off.
*/
#ifndef DEFAULT_MAX_FREE_DAEMON
#define DEFAULT_MAX_FREE_DAEMON 10
#endif
/* Minimum --- fewer than this, and more will be created */
#ifndef DEFAULT_MIN_FREE_DAEMON
#define DEFAULT_MIN_FREE_DAEMON 5
#endif
/* Limit on the total --- clients will be locked out if more servers than
* this are needed. It is intended solely to keep the server from crashing
* when things get out of hand.
*
* We keep a hard maximum number of servers, for two reasons --- first off,
* in case something goes seriously wrong, we want to stop the fork bomb
* short of actually crashing the machine we're running on by filling some
* kernel table. Secondly, it keeps the size of the scoreboard file small
* enough that we can read the whole thing without worrying too much about
* the overhead.
*/
#ifdef NO_THREADS
#define HARD_SERVER_LIMIT 256
#endif
#ifndef HARD_SERVER_LIMIT
#define HARD_SERVER_LIMIT 8
#endif
/* Limit on the threads per process. Clients will be locked out if more than
* this * HARD_SERVER_LIMIT are needed.
*
* We keep this for one reason it keeps the size of the scoreboard file small
* enough that we can read the whole thing without worrying too much about
* the overhead.
*/
#ifdef NO_THREADS
#define HARD_THREAD_LIMIT 1
#endif
#ifndef HARD_THREAD_LIMIT
#define HARD_THREAD_LIMIT 64
#endif
#ifdef NO_THREADS
#define DEFAULT_THREADS_PER_CHILD 1
#endif
#ifndef DEFAULT_THREADS_PER_CHILD
#define DEFAULT_THREADS_PER_CHILD 50
#endif
/* File used for accept locking, when we use a file */
#ifndef DEFAULT_LOCKFILE
#define DEFAULT_LOCKFILE "logs/accept.lock"
#endif
/* Scoreboard file, if there is one */
#ifndef DEFAULT_SCOREBOARD
#define DEFAULT_SCOREBOARD "logs/apache_runtime_status"
#endif
/* Where the main/parent process's pid is logged */
#ifndef DEFAULT_PIDLOG
#define DEFAULT_PIDLOG "logs/httpd.pid"
#endif
/*
* Interval, in microseconds, between scoreboard maintenance.
*/
#ifndef SCOREBOARD_MAINTENANCE_INTERVAL
#define SCOREBOARD_MAINTENANCE_INTERVAL 1000000
#endif
/* Number of requests to try to handle in a single process. If <= 0,
* the children don't die off.
*/
#ifndef DEFAULT_MAX_REQUESTS_PER_CHILD
#define DEFAULT_MAX_REQUESTS_PER_CHILD 10000
#endif
#endif /* AP_MPM_DEFAULT_H */
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