httpd/server/scoreboard.c

	scoreboard.c revision 179a355e3801a2c2e0a895964cf39488bac3c9cc
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb/* Copyright 2001-2005 The Apache Software Foundation or its licensors, as
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * applicable.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb *
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Licensed under the Apache License, Version 2.0 (the "License");
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * you may not use this file except in compliance with the License.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * You may obtain a copy of the License at
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb *
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb *     http://www.apache.org/licenses/LICENSE-2.0
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb *
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Unless required by applicable law or agreed to in writing, software
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * distributed under the License is distributed on an "AS IS" BASIS,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * See the License for the specific language governing permissions and
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * limitations under the License.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "apr.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "apr_strings.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "apr_portable.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "apr_lib.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#define APR_WANT_STRFUNC
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "apr_want.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#if APR_HAVE_SYS_TYPES_H
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include <sys/types.h>
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#endif
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "ap_config.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "httpd.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "http_log.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "http_main.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "http_core.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "http_config.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "ap_mpm.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "mpm.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "scoreboard.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE_DATA scoreboard *ap_scoreboard_image = NULL;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE_DATA const char *ap_scoreboard_fname = NULL;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE_DATA int ap_extended_status = 0;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#if APR_HAS_SHARED_MEMORY
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#include "apr_shm.h"
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#ifndef WIN32
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbstatic /* but must be exported to mpm_winnt */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#endif
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        apr_shm_t *ap_scoreboard_shm = NULL;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#endif
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAPR_HOOK_STRUCT(
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    APR_HOOK_LINK(pre_mpm)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_IMPLEMENT_HOOK_RUN_ALL(int,pre_mpm,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                          (apr_pool_t *p, ap_scoreboard_e sb_type),
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                          (p, sb_type),OK,DECLINED)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbstatic APR_OPTIONAL_FN_TYPE(ap_proxy_lb_workers)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                *proxy_lb_workers;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbstruct ap_sb_handle_t {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int child_num;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int thread_num;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb};
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbstatic int server_limit, thread_limit, lb_limit;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbstatic apr_size_t scoreboard_size;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb/*
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * ToDo:
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * This function should be renamed to cleanup_shared
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * and it should handle cleaning up a scoreboard shared
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * between processes using any form of IPC (file, shared memory
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * segment, etc.). Leave it as is now because it is being used
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * by various MPMs.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbstatic apr_status_t ap_cleanup_shared_mem(void *d)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#if APR_HAS_SHARED_MEMORY
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    free(ap_scoreboard_image);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ap_scoreboard_image = NULL;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    apr_shm_destroy(ap_scoreboard_shm);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#endif
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return APR_SUCCESS;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(int) ap_calc_scoreboard_size(void)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ap_mpm_query(AP_MPMQ_HARD_LIMIT_THREADS, &thread_limit);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ap_mpm_query(AP_MPMQ_HARD_LIMIT_DAEMONS, &server_limit);
a2a0abd88b19e042a3eb2a9fa1702c25ad51303dwrowe
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (!proxy_lb_workers)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        proxy_lb_workers = APR_RETRIEVE_OPTIONAL_FN(ap_proxy_lb_workers);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (proxy_lb_workers)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        lb_limit = proxy_lb_workers();
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    else
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        lb_limit = 0;
b45c1c292ff1fa635004ae81fa691f8cb3cdda85rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    scoreboard_size = sizeof(global_score);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    scoreboard_size += sizeof(process_score) * server_limit;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    scoreboard_size += sizeof(worker_score) * server_limit * thread_limit;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (lb_limit)
a2a0abd88b19e042a3eb2a9fa1702c25ad51303dwrowe        scoreboard_size += sizeof(lb_score) * lb_limit;
a2a0abd88b19e042a3eb2a9fa1702c25ad51303dwrowe
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return scoreboard_size;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbvoid ap_init_scoreboard(void *shared_score)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    char *more_storage;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int i;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ap_calc_scoreboard_size();
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ap_scoreboard_image =
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        calloc(1, sizeof(scoreboard) + server_limit * sizeof(worker_score *) +
c3e342e5b0b9fea6617ee16d2da02c3ef2108126dougm               server_limit * lb_limit * sizeof(lb_score *));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    more_storage = shared_score;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_scoreboard_image->global = (global_score *)more_storage;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    more_storage += sizeof(global_score);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_scoreboard_image->parent = (process_score *)more_storage;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    more_storage += sizeof(process_score) * server_limit;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_scoreboard_image->servers =
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        (worker_score **)((char*)ap_scoreboard_image + sizeof(scoreboard));
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    for (i = 0; i < server_limit; i++) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        ap_scoreboard_image->servers[i] = (worker_score *)more_storage;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        more_storage += thread_limit * sizeof(worker_score);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (lb_limit) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        ap_scoreboard_image->balancers = (lb_score *)more_storage;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        more_storage += lb_limit * sizeof(lb_score);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_assert(more_storage == (char*)shared_score + scoreboard_size);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_scoreboard_image->global->server_limit = server_limit;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_scoreboard_image->global->thread_limit = thread_limit;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    ap_scoreboard_image->global->lb_limit     = lb_limit;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe}
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe/**
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * Create a name-based scoreboard in the given pool using the
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * given filename.
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowestatic apr_status_t create_namebased_scoreboard(apr_pool_t *pool,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                                                const char *fname)
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe{
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe#if APR_HAS_SHARED_MEMORY
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    apr_status_t rv;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    /* The shared memory file must not exist before we create the
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe     * segment. */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    apr_shm_remove(fname, pool); /* ignore errors */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    rv = apr_shm_create(&ap_scoreboard_shm, scoreboard_size, fname, pool);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (rv != APR_SUCCESS) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                     "unable to create scoreboard \"%s\" "
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                     "(name-based shared memory failure)", fname);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        return rv;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe#endif /* APR_HAS_SHARED_MEMORY */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    return APR_SUCCESS;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe}
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe/* ToDo: This function should be made to handle setting up
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * a scoreboard shared between processes using any IPC technique,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * not just a shared memory segment
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowestatic apr_status_t open_scoreboard(apr_pool_t *pconf)
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe{
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe#if APR_HAS_SHARED_MEMORY
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    apr_status_t rv;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    char *fname = NULL;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    apr_pool_t *global_pool;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    /* We don't want to have to recreate the scoreboard after
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe     * restarts, so we'll create a global pool and never clean it.
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe     */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    rv = apr_pool_create(&global_pool, NULL);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (rv != APR_SUCCESS) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                     "Fatal error: unable to create global pool "
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                     "for use with by the scoreboard");
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        return rv;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    /* The config says to create a name-based shmem */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (ap_scoreboard_fname) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        /* make sure it's an absolute pathname */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        fname = ap_server_root_relative(pconf, ap_scoreboard_fname);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        if (!fname) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            ap_log_error(APLOG_MARK, APLOG_CRIT, APR_EBADPATH, NULL,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                         "Fatal error: Invalid Scoreboard path %s",
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                         ap_scoreboard_fname);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            return APR_EBADPATH;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        return create_namebased_scoreboard(global_pool, fname);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    else { /* config didn't specify, we get to choose shmem type */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        rv = apr_shm_create(&ap_scoreboard_shm, scoreboard_size, NULL,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                            global_pool); /* anonymous shared memory */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        if ((rv != APR_SUCCESS) && (rv != APR_ENOTIMPL)) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                         "Unable to create scoreboard "
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                         "(anonymous shared memory failure)");
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            return rv;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        /* Make up a filename and do name-based shmem */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        else if (rv == APR_ENOTIMPL) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            /* Make sure it's an absolute pathname */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            ap_scoreboard_fname = DEFAULT_SCOREBOARD;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            fname = ap_server_root_relative(pconf, ap_scoreboard_fname);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe            return create_namebased_scoreboard(global_pool, fname);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe#endif /* APR_HAS_SHARED_MEMORY */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    return APR_SUCCESS;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe}
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe/* If detach is non-zero, this is a seperate child process,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * if zero, it is a forked child.
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewroweapr_status_t ap_reopen_scoreboard(apr_pool_t *p, apr_shm_t **shm, int detached)
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe{
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe#if APR_HAS_SHARED_MEMORY
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (!detached) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        return APR_SUCCESS;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (apr_shm_size_get(ap_scoreboard_shm) < scoreboard_size) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        ap_log_error(APLOG_MARK, APLOG_CRIT, 0, NULL,
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe                     "Fatal error: shared scoreboard too small for child!");
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        apr_shm_detach(ap_scoreboard_shm);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        ap_scoreboard_shm = NULL;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        return APR_EINVAL;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    /* everything will be cleared shortly */
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    if (*shm) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe        *shm = ap_scoreboard_shm;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    }
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe#endif
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe    return APR_SUCCESS;
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbapr_status_t ap_cleanup_scoreboard(void *d)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (ap_scoreboard_image == NULL) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        return APR_SUCCESS;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (ap_scoreboard_image->global->sb_type == SB_SHARED) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ap_cleanup_shared_mem(NULL);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    else {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        free(ap_scoreboard_image->global);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        free(ap_scoreboard_image);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ap_scoreboard_image = NULL;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return APR_SUCCESS;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb/* Create or reinit an existing scoreboard. The MPM can control whether
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * the scoreboard is shared across multiple processes or not
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbint ap_create_scoreboard(apr_pool_t *p, ap_scoreboard_e sb_type)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int running_gen = 0;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int i;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#if APR_HAS_SHARED_MEMORY
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    apr_status_t rv;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#endif
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (ap_scoreboard_image) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        running_gen = ap_scoreboard_image->global->running_generation;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ap_scoreboard_image->global->restart_time = apr_time_now();
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        memset(ap_scoreboard_image->parent, 0,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb               sizeof(process_score) * server_limit);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        for (i = 0; i < server_limit; i++) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            memset(ap_scoreboard_image->servers[i], 0,
c6ed63d53853f79bf8265c434d2e25c9db8a7fd8trawick                   sizeof(worker_score) * thread_limit);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        }
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        /* Clean up the lb workers data */
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        if (lb_limit) {
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe            memset(ap_scoreboard_image->balancers, 0,
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe                   sizeof(lb_score) * lb_limit);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        }
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        return OK;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    }
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    ap_calc_scoreboard_size();
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe#if APR_HAS_SHARED_MEMORY
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    if (sb_type == SB_SHARED) {
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        void *sb_shared;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        rv = open_scoreboard(p);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        if (rv || !(sb_shared = apr_shm_baseaddr_get(ap_scoreboard_shm))) {
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe            return HTTP_INTERNAL_SERVER_ERROR;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        }
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        memset(sb_shared, 0, scoreboard_size);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        ap_init_scoreboard(sb_shared);
2f1949bb0e3c209db94c8d521cba7380b9d11421trawick    }
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    else
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe#endif
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    {
2f1949bb0e3c209db94c8d521cba7380b9d11421trawick        /* A simple malloc will suffice */
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        void *sb_mem = calloc(1, scoreboard_size);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        if (sb_mem == NULL) {
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe            ap_log_error(APLOG_MARK, APLOG_CRIT, 0, NULL,
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe                         "(%d)%s: cannot allocate scoreboard",
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe                         errno, strerror(errno));
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe            return HTTP_INTERNAL_SERVER_ERROR;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        }
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe        ap_init_scoreboard(sb_mem);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    }
2f1949bb0e3c209db94c8d521cba7380b9d11421trawick
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    ap_scoreboard_image->global->sb_type = sb_type;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    ap_scoreboard_image->global->running_generation = running_gen;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    ap_scoreboard_image->global->restart_time = apr_time_now();
2f1949bb0e3c209db94c8d521cba7380b9d11421trawick
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    apr_pool_cleanup_register(p, NULL, ap_cleanup_scoreboard, apr_pool_cleanup_null);
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe    return OK;
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe}
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe/* Routines called to deal with the scoreboard image
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * --- note that we do *not* need write locks, since update_child_status
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * only updates a *single* record in place, and only one process writes to
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * a given scoreboard slot at a time (either the child process owning that
c6ed63d53853f79bf8265c434d2e25c9db8a7fd8trawick * slot, or the parent, noting that the child has died).
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb *
8aefbd756763807188d2e3ce336a8680e4893066wrowe * As a final note --- setting the score entry to getpid() is always safe,
8aefbd756763807188d2e3ce336a8680e4893066wrowe * since when the parent is writing an entry, it's only noting SERVER_DEAD
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * anyway.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(int) ap_exists_scoreboard_image(void)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return (ap_scoreboard_image ? 1 : 0);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(void) ap_increment_counts(ap_sb_handle_t *sb, request_rec *r)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    worker_score *ws;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws = &ap_scoreboard_image->servers[sb->child_num][sb->thread_num];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#ifdef HAVE_TIMES
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    times(&ws->times);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb#endif
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->access_count++;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->my_access_count++;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->conn_count++;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->bytes_served += r->bytes_sent;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->my_bytes_served += r->bytes_sent;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->conn_bytes += r->bytes_sent;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbint find_child_by_pid(apr_proc_t *pid)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int i;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int max_daemons_limit;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ap_mpm_query(AP_MPMQ_MAX_DAEMONS, &max_daemons_limit);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    for (i = 0; i < max_daemons_limit; ++i) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        if (ap_scoreboard_image->parent[i].pid == pid->pid) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            return i;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return -1;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(void) ap_create_sb_handle(ap_sb_handle_t **new_sbh, apr_pool_t *p,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                     int child_num, int thread_num)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    *new_sbh = (ap_sb_handle_t *)apr_palloc(p, sizeof(ap_sb_handle_t));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    (*new_sbh)->child_num = child_num;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    (*new_sbh)->thread_num = thread_num;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(int) ap_update_child_status_from_indexes(int child_num,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                                    int thread_num,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                                    int status,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                                    request_rec *r)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    int old_status;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    worker_score *ws;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    process_score *ps;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (child_num < 0) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        return -1;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws = &ap_scoreboard_image->servers[child_num][thread_num];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    old_status = ws->status;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws->status = status;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ps = &ap_scoreboard_image->parent[child_num];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (status == SERVER_READY
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        && old_status == SERVER_STARTING) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ws->thread_num = child_num * thread_limit + thread_num;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ps->generation = ap_my_generation;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (ap_extended_status) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ws->last_used = apr_time_now();
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        if (status == SERVER_READY || status == SERVER_DEAD) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            /*
4ca6cbe768b4e0917ac0b76333c26a7d5396d454trawick             * Reset individual counters
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb             */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            if (status == SERVER_DEAD) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                ws->my_access_count = 0L;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                ws->my_bytes_served = 0L;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            ws->conn_count = 0;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            ws->conn_bytes = 0;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        if (r) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            conn_rec *c = r->connection;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            apr_cpystrn(ws->client, ap_get_remote_host(c, r->per_dir_config,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                        REMOTE_NOLOOKUP, NULL), sizeof(ws->client));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            if (r->the_request == NULL) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                apr_cpystrn(ws->request, "NULL", sizeof(ws->request));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            } else if (r->parsed_uri.password == NULL) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                apr_cpystrn(ws->request, r->the_request, sizeof(ws->request));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            } else {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                /* Don't reveal the password in the server-status view */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                apr_cpystrn(ws->request, apr_pstrcat(r->pool, r->method, " ",
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                            apr_uri_unparse(r->pool, &r->parsed_uri,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                            APR_URI_UNP_OMITPASSWORD),
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                            r->assbackwards ? NULL : " ", r->protocol, NULL),
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                            sizeof(ws->request));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb            apr_cpystrn(ws->vhost, r->server->server_hostname,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                        sizeof(ws->vhost));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return old_status;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(int) ap_update_child_status(ap_sb_handle_t *sbh, int status,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                      request_rec *r)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return ap_update_child_status_from_indexes(sbh->child_num, sbh->thread_num,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb                                               status, r);
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbvoid ap_time_process_request(ap_sb_handle_t *sbh, int status)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    worker_score *ws;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (sbh->child_num < 0) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        return;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    ws = &ap_scoreboard_image->servers[sbh->child_num][sbh->thread_num];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b29f87f4b6c6886a04dccc296177a7033f70dfedtrawick    if (status == START_PREQUEST) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ws->start_time = apr_time_now();
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    else if (status == STOP_PREQUEST) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ws->stop_time = apr_time_now();
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(worker_score *) ap_get_scoreboard_worker(int x, int y)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (((x < 0) || (server_limit < x)) ||
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        ((y < 0) || (thread_limit < y))) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        return(NULL); /* Out of range */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return &ap_scoreboard_image->servers[x][y];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(process_score *) ap_get_scoreboard_process(int x)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if ((x < 0) || (server_limit < x)) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        return(NULL); /* Out of range */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return &ap_scoreboard_image->parent[x];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(global_score *) ap_get_scoreboard_global()
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return ap_scoreboard_image->global;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(lb_score *) ap_get_scoreboard_lb(int lb_num)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb{
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    if (((lb_num < 0) || (lb_limit < lb_num))) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb        return(NULL); /* Out of range */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    }
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb    return &ap_scoreboard_image->balancers[lb_num];
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb}
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb