scoreboard.h revision 26dfa083a1662d57ba7cc410eec4e0696b9be469
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* ====================================================================
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * The Apache Software License, Version 1.1
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Copyright (c) 2000-2001 The Apache Software Foundation. All rights
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Redistribution and use in source and binary forms, with or without
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * modification, are permitted provided that the following conditions
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 1. Redistributions of source code must retain the above copyright
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * notice, this list of conditions and the following disclaimer.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 2. Redistributions in binary form must reproduce the above copyright
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * notice, this list of conditions and the following disclaimer in
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * the documentation and/or other materials provided with the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * distribution.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 3. The end-user documentation included with the redistribution,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * if any, must include the following acknowledgment:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * "This product includes software developed by the
cd3e933325e68e23516a196a8fea7f49b1e497c3Ali Bahrami * Apache Software Foundation (http://www.apache.org/)."
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Alternately, this acknowledgment may appear in the software itself,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * if and wherever such third-party acknowledgments normally appear.
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * 4. The names "Apache" and "Apache Software Foundation" must
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * not be used to endorse or promote products derived from this
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * software without prior written permission. For written
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * permission, please contact apache@apache.org.
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * 5. Products derived from this software may not be called "Apache",
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * nor may "Apache" appear in their name, without prior written
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * permission of the Apache Software Foundation.
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bfed486ad8de8b8ebc6345a8e10accae08bf2f45Ali Bahrami * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
cd3e933325e68e23516a196a8fea7f49b1e497c3Ali Bahrami * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
cd3e933325e68e23516a196a8fea7f49b1e497c3Ali Bahrami * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
cd3e933325e68e23516a196a8fea7f49b1e497c3Ali Bahrami * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * SUCH DAMAGE.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * ====================================================================
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * This software consists of voluntary contributions made by many
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * individuals on behalf of the Apache Software Foundation. For more
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * information on the Apache Software Foundation, please see
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Portions of this software are based upon public domain software
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * originally written at the National Center for Supercomputing Applications,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * University of Illinois, Urbana-Champaign.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* Scoreboard info on a process is, for now, kept very brief ---
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * just status value and pid (the latter so that the caretaker process
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * can properly update the scoreboard when a process dies). We may want
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * to eventually add a separate set of long_score structures which would
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * give, for each process, the number of requests serviced, and info on
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * the current, or most recent, request.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Status values:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_STARTING 1 /* Server Starting up */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_READY 2 /* Waiting for connection (or accept() lock) */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_BUSY_READ 3 /* Reading a client request */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_BUSY_WRITE 4 /* Processing a client request */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_BUSY_KEEPALIVE 5 /* Waiting for more requests via keepalive */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_BUSY_LOG 6 /* Logging the request */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_BUSY_DNS 7 /* Looking up a hostname */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_CLOSING 8 /* Closing the connection */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_GRACEFUL 9 /* server is gracefully finishing request */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_IDLE_KILL 10 /* Server is cleaning up idle children. */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define SERVER_NUM_STATUS 11 /* number of status settings */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* Type used for generation indicies. Startup and every restart cause a
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * new generation of children to be spawned. Children within the same
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * generation share the same configuration information -- pointers to stuff
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * created at config time in the parent are valid across children. However,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * this can't work effectively with non-forked architectures. So while the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * arrays in the scoreboard never change between the parent and forked
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * children, so they do not require shm storage, the contents of the shm
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * may contain no pointers.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* Is the scoreboard shared between processes or not?
a79493184c9332129c9c91500069322f6f3fafddReed * Set by the MPM when the scoreboard is created.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortetypedef enum {
struct worker_score {
int thread_num;
#if APR_HAS_THREADS
unsigned char status;
unsigned long access_count;
unsigned long my_access_count;
unsigned short conn_count;
#ifdef HAVE_TIMES
} global_score;
struct process_score{
} scoreboard;
int ap_calc_scoreboard_size(void);
void ap_sync_scoreboard_image(void);
void update_scoreboard_global(void);
/* for time_process_request() in http_main.c */
#ifdef __cplusplus