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/* ====================================================================
* Copyright (c) 1995-1999 The Apache Group. 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" 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 names without prior written
* permission of the Apache Group.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``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 GROUP 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 Group and was originally based
* on public domain software written at the National Center for
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
#ifndef AP_MMN_H
#define AP_MMN_H
/* run until a restart/shutdown is indicated, return 1 for shutdown
0 otherwise */
API_EXPORT(int) ap_mpm_run(pool *pconf, pool *plog, server_rec *server_conf);
/* predicate indicating if a graceful stop has been requested ...
used by the connection loop */
API_EXPORT(int) ap_mpm_graceful_stop(void);
#ifdef HAS_OTHER_CHILD
/*
* register an other_child -- a child which the main loop keeps track of
* and knows it is different than the rest of the scoreboard.
*
* pid is the pid of the child.
*
* maintenance is a function that is invoked with a reason, the data
* pointer passed here, and when appropriate a status result from waitpid().
*
* write_fd is an fd that is probed for writing by select() if it is ever
* unwritable, then maintenance is invoked with reason OC_REASON_UNWRITABLE.
* This is useful for log pipe children, to know when they've blocked. To
* disable this feature, use -1 for write_fd.
*/
API_EXPORT(void) ap_register_other_child(int pid,
void (*maintenance) (int reason, void *data, ap_wait_t status), void *data,
int write_fd);
#define OC_REASON_DEATH 0 /* child has died, caller must call
* unregister still */
#define OC_REASON_UNWRITABLE 1 /* write_fd is unwritable */
#define OC_REASON_RESTART 2 /* a restart is occuring, perform
* any necessary cleanup (including
* sending a special signal to child)
*/
#define OC_REASON_UNREGISTER 3 /* unregister has been called, do
* whatever is necessary (including
* kill the child) */
#define OC_REASON_LOST 4 /* somehow the child exited without
* us knowing ... buggy os? */
/*
* unregister an other_child. Note that the data pointer is used here, and
* is assumed to be unique per other_child. This is because the pid and
* write_fd are possibly killed off separately.
*/
API_EXPORT(void) ap_unregister_other_child(void *data);
#endif
#endif
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