upload http

JIRA: BOTTLENECK-10

Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>

6 files changed, 1313 insertions, 0 deletions

diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/Makefile.in b/rubbos/app/httpd-2.0.64/server/mpm/beos/Makefile.in
new file mode 100644
index 00000000..3f88b041
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/server/mpm/beos/Makefile.in
@@ -0,0 +1,5 @@
+
+LTLIBRARY_NAME    = libbeos.la
+LTLIBRARY_SOURCES = beos.c 
+
+include $(top_srcdir)/build/ltlib.mk
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c b/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c
new file mode 100644
index 00000000..51a17c3e
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.c
@@ -0,0 +1,1159 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* The new BeOS MPM!
+ *
+ * This one basically is a single process multi threaded model, but 
+ * I couldn't be bothered adding the spmt_ to the front of the name!
+ * Anyway, this is still under development so it isn't yet the default
+ * choice.
+ */
+ 
+#define CORE_PRIVATE 
+ 
+#include <kernel/OS.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <signal.h>
+
+#include "apr_strings.h"
+#include "apr_portable.h"
+#include "httpd.h" 
+#include "http_main.h" 
+#include "http_log.h" 
+#include "http_config.h"	/* for read_config */ 
+#include "http_core.h"		/* for get_remote_host */ 
+#include "http_connection.h"
+#include "ap_mpm.h"
+#include "beosd.h"
+#include "ap_listen.h"
+#include "scoreboard.h" 
+#include "mpm_common.h"
+#include "mpm.h"
+#include "mpm_default.h"
+#include "apr_thread_mutex.h"
+#include "apr_poll.h"
+
+extern int _kset_fd_limit_(int num);
+
+/* 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:
+ * 1) in case something goes seriously wrong, we want to stop the server starting
+ *    threads ad infinitum and crashing the server (remember that BeOS has a 192
+ *    thread per team limit).
+ * 2) it keeps the size of the scoreboard file small
+ *    enough that we can read the whole thing without worrying too much about
+ *    the overhead.
+ */
+
+/* we only ever have 1 main process running... */ 
+#define HARD_SERVER_LIMIT 1
+
+/* 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 50 
+#endif
+
+/*
+ * Actual definitions of config globals
+ */
+
+static int ap_threads_to_start=0;
+static int ap_max_requests_per_thread = 0;
+static int min_spare_threads=0;
+static int max_spare_threads=0;
+static int ap_thread_limit=0;
+static int num_listening_sockets = 0;
+static apr_socket_t ** listening_sockets;
+apr_thread_mutex_t *accept_mutex = NULL;
+
+static apr_pool_t *pconf;		/* Pool for config stuff */
+static apr_pool_t *pchild;		/* Pool for httpd child stuff */
+
+static int server_pid; 
+static int mpm_state = AP_MPMQ_STARTING;
+
+/* Keep track of the number of worker threads currently active */
+static int worker_thread_count;
+apr_thread_mutex_t *worker_thread_count_mutex;
+
+/* The structure used to pass unique initialization info to each thread */
+typedef struct {
+    int slot;
+    apr_pool_t *tpool;
+} proc_info;
+
+static void check_restart(void *data);
+
+/*
+ * The max child slot ever assigned, preserved across restarts.  Necessary
+ * to deal with MaxClients changes across AP_SIG_GRACEFUL restarts.  We use 
+ * this value to optimize routines that have to scan the entire scoreboard.
+ */
+int ap_max_child_assigned = -1;
+int ap_max_threads_limit = -1;
+
+static apr_socket_t *udp_sock;
+static apr_sockaddr_t *udp_sa;
+
+/* shared http_main globals... */
+
+server_rec *ap_server_conf;
+
+/* one_process */
+static int one_process = 0;
+
+#ifdef DEBUG_SIGSTOP
+int raise_sigstop_flags;
+#endif
+
+/* a clean exit from a child with proper cleanup 
+   static void clean_child_exit(int code) __attribute__ ((noreturn)); */
+static void clean_child_exit(int code)
+{
+    if (pchild)
+        apr_pool_destroy(pchild);
+    exit(code);
+}
+
+/* handle all varieties of core dumping signals */
+static void sig_coredump(int sig)
+{
+    chdir(ap_coredump_dir);
+    signal(sig, SIG_DFL);
+    kill(server_pid, sig);
+    /* At this point we've got sig blocked, because we're still inside
+     * the signal handler.  When we leave the signal handler it will
+     * be unblocked, and we'll take the signal... and coredump or whatever
+     * is appropriate for this particular Unix.  In addition the parent
+     * will see the real signal we received -- whereas if we called
+     * abort() here, the parent would only see SIGABRT.
+     */
+}
+
+/*****************************************************************
+ * Connection structures and accounting...
+ */
+
+/* volatile just in case */
+static int volatile shutdown_pending;
+static int volatile restart_pending;
+static int volatile is_graceful;
+static int volatile child_fatal;
+ap_generation_t volatile ap_my_generation = 0;
+
+/*
+ * ap_start_shutdown() and ap_start_restart(), below, are a first stab at
+ * functions to initiate shutdown or restart without relying on signals. 
+ * Previously this was initiated in sig_term() and restart() signal handlers, 
+ * but we want to be able to start a shutdown/restart from other sources --
+ * e.g. on Win32, from the service manager. Now the service manager can
+ * call ap_start_shutdown() or ap_start_restart() as appropiate.  Note that
+ * these functions can also be called by the child processes, since global
+ * variables are no longer used to pass on the required action to the parent.
+ *
+ * These should only be called from the parent process itself, since the
+ * parent process will use the shutdown_pending and restart_pending variables
+ * to determine whether to shutdown or restart. The child process should
+ * call signal_parent() directly to tell the parent to die -- this will
+ * cause neither of those variable to be set, which the parent will
+ * assume means something serious is wrong (which it will be, for the
+ * child to force an exit) and so do an exit anyway.
+ */
+
+static void ap_start_shutdown(void)
+{
+    mpm_state = AP_MPMQ_STOPPING;
+ 
+    if (shutdown_pending == 1) {
+	/* Um, is this _probably_ not an error, if the user has
+	 * tried to do a shutdown twice quickly, so we won't
+	 * worry about reporting it.
+	 */
+	return;
+    }
+    shutdown_pending = 1;
+}
+
+/* do a graceful restart if graceful == 1 */
+static void ap_start_restart(int graceful)
+{
+    mpm_state = AP_MPMQ_STOPPING;
+
+    if (restart_pending == 1) {
+        /* Probably not an error - don't bother reporting it */
+        return;
+    }
+    restart_pending = 1;
+    is_graceful = graceful;
+}
+
+static void sig_term(int sig)
+{
+    ap_start_shutdown();
+}
+
+static void restart(int sig)
+{
+    ap_start_restart(sig == AP_SIG_GRACEFUL);
+}
+
+static void tell_workers_to_exit(void)
+{
+    apr_size_t len;
+    int i = 0;
+
+    mpm_state = AP_MPMQ_STOPPING;
+
+    for (i = 0 ; i < ap_max_child_assigned; i++){
+        len = 4;
+        if (apr_sendto(udp_sock, udp_sa, 0, "die!", &len) != APR_SUCCESS)
+            break;
+    }   
+}
+
+static void set_signals(void)
+{
+    struct sigaction sa;
+
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = 0;
+
+    if (!one_process) {
+	sa.sa_handler = sig_coredump;
+
+	if (sigaction(SIGSEGV, &sa, NULL) < 0)
+	    ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGSEGV)");
+	if (sigaction(SIGBUS, &sa, NULL) < 0)
+	    ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGBUS)");
+	if (sigaction(SIGABRT, &sa, NULL) < 0)
+	    ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGABRT)");
+	if (sigaction(SIGILL, &sa, NULL) < 0)
+	    ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGILL)");
+	sa.sa_flags = 0;
+    }
+    sa.sa_handler = sig_term;
+    if (sigaction(SIGTERM, &sa, NULL) < 0)
+	    ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGTERM)");
+    if (sigaction(SIGINT, &sa, NULL) < 0)
+        ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGINT)");
+    
+    sa.sa_handler = SIG_IGN;
+    if (sigaction(SIGPIPE, &sa, NULL) < 0)
+    	ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGPIPE)");
+
+    /* we want to ignore HUPs and AP_SIG_GRACEFUL while we're busy 
+     * processing one */
+    sigaddset(&sa.sa_mask, SIGHUP);
+    sigaddset(&sa.sa_mask, AP_SIG_GRACEFUL);
+    sa.sa_handler = restart;
+    if (sigaction(SIGHUP, &sa, NULL) < 0)
+    	ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(SIGHUP)");
+    if (sigaction(AP_SIG_GRACEFUL, &sa, NULL) < 0)
+	    ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf, "sigaction(" AP_SIG_GRACEFUL_STRING ")");
+}
+
+/*****************************************************************
+ * Here follows a long bunch of generic server bookkeeping stuff...
+ */
+
+int ap_graceful_stop_signalled(void)
+{
+    /* XXX - Does this really work? - Manoj */
+    return is_graceful;
+}
+
+/*****************************************************************
+ * Child process main loop.
+ */
+
+static void process_socket(apr_pool_t *p, apr_socket_t *sock,
+                           int my_child_num, apr_bucket_alloc_t *bucket_alloc)
+{
+    conn_rec *current_conn;
+    long conn_id = my_child_num;
+    int csd;
+    ap_sb_handle_t *sbh;
+
+    (void)apr_os_sock_get(&csd, sock);
+    
+    if (csd >= FD_SETSIZE) {
+        ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL,
+                     "filedescriptor (%u) larger than FD_SETSIZE (%u) "
+                     "found, you probably need to rebuild Apache with a "
+                     "larger FD_SETSIZE", csd, FD_SETSIZE);
+        apr_socket_close(sock);
+        return;
+    }
+
+    ap_create_sb_handle(&sbh, p, 0, my_child_num);
+    current_conn = ap_run_create_connection(p, ap_server_conf,
+                                            sock, conn_id, sbh,
+                                            bucket_alloc);
+
+    if (current_conn) {
+        ap_process_connection(current_conn, sock);
+        ap_lingering_close(current_conn);
+    }
+}
+
+static int32 worker_thread(void * dummy)
+{
+    proc_info * ti = dummy;
+    int child_slot = ti->slot;
+    apr_pool_t *tpool = ti->tpool;
+    apr_allocator_t *allocator;
+    apr_socket_t *csd = NULL;
+    apr_pool_t *ptrans;		/* Pool for per-transaction stuff */
+    apr_bucket_alloc_t *bucket_alloc;
+    apr_socket_t *sd = NULL;
+    apr_status_t rv = APR_EINIT;
+    int srv , n;
+    int curr_pollfd = 0, last_pollfd = 0;
+    sigset_t sig_mask;
+    int requests_this_child = ap_max_requests_per_thread;
+    apr_pollfd_t *pollset;
+    /* each worker thread is in control of its own destiny...*/
+    int this_worker_should_exit = 0; 
+    free(ti);
+
+    mpm_state = AP_MPMQ_STARTING;
+
+    on_exit_thread(check_restart, (void*)child_slot);
+          
+    /* block the signals for this thread */
+    sigfillset(&sig_mask);
+    sigprocmask(SIG_BLOCK, &sig_mask, NULL);
+
+    apr_allocator_create(&allocator);
+    apr_allocator_max_free_set(allocator, ap_max_mem_free);
+    apr_pool_create_ex(&ptrans, tpool, NULL, allocator);
+    apr_allocator_owner_set(allocator, ptrans);
+
+    apr_pool_tag(ptrans, "transaction");
+
+    bucket_alloc = apr_bucket_alloc_create_ex(allocator);
+
+    apr_thread_mutex_lock(worker_thread_count_mutex);
+    worker_thread_count++;
+    apr_thread_mutex_unlock(worker_thread_count_mutex);
+
+    (void) ap_update_child_status_from_indexes(0, child_slot, SERVER_STARTING,
+                                               (request_rec*)NULL);
+                                  
+    apr_poll_setup(&pollset, num_listening_sockets + 1, tpool);
+    for(n=0 ; n <= num_listening_sockets ; n++)
+        apr_poll_socket_add(pollset, listening_sockets[n], APR_POLLIN);
+
+    mpm_state = AP_MPMQ_RUNNING;
+
+    while (1) {
+        /* If we're here, then chances are (unless we're the first thread created) 
+         * we're going to be held up in the accept mutex, so doing this here
+         * shouldn't hurt performance.
+         */
+
+        this_worker_should_exit |= (ap_max_requests_per_thread != 0) && (requests_this_child <= 0);
+        
+        if (this_worker_should_exit) break;
+
+        (void) ap_update_child_status_from_indexes(0, child_slot, SERVER_READY,
+                                                   (request_rec*)NULL);
+
+        apr_thread_mutex_lock(accept_mutex);
+
+        while (!this_worker_should_exit) {
+            apr_int16_t event;
+            apr_status_t ret;
+
+            ret = apr_poll(pollset, num_listening_sockets + 1, &srv, -1);
+
+            if (ret != APR_SUCCESS) {
+                if (APR_STATUS_IS_EINTR(ret)) {
+                    continue;
+                }
+                /* poll() will only return errors in catastrophic
+                 * circumstances. Let's try exiting gracefully, for now. */
+                ap_log_error(APLOG_MARK, APLOG_ERR, ret, (const server_rec *)
+                             ap_server_conf, "apr_poll: (listen)");
+                this_worker_should_exit = 1;
+            } else {
+                /* if we've bailed in apr_poll what's the point of trying to use the data? */
+                apr_poll_revents_get(&event, listening_sockets[0], pollset);
+
+                if (event & APR_POLLIN){
+                    apr_sockaddr_t *rec_sa;
+                    apr_size_t len = 5;
+                    char *tmpbuf = apr_palloc(ptrans, sizeof(char) * 5);
+                    apr_sockaddr_info_get(&rec_sa, "127.0.0.1", APR_UNSPEC, 7772, 0, ptrans);
+                    
+                    if ((ret = apr_recvfrom(rec_sa, listening_sockets[0], 0, tmpbuf, &len))
+                        != APR_SUCCESS){
+                        ap_log_error(APLOG_MARK, APLOG_ERR, ret, NULL, 
+                            "error getting data from UDP!!");
+                    }else {
+                        /* add checking??? */              
+                    }
+                    this_worker_should_exit = 1;
+                }
+            }
+          
+            if (this_worker_should_exit) break;
+
+            if (num_listening_sockets == 1) {
+                sd = ap_listeners->sd;
+                goto got_fd;
+            }
+            else {
+                /* find a listener */
+                curr_pollfd = last_pollfd;
+                do {
+                    curr_pollfd++;
+
+                    if (curr_pollfd > num_listening_sockets)
+                        curr_pollfd = 1;
+                    
+                    /* Get the revent... */
+                    apr_poll_revents_get(&event, listening_sockets[curr_pollfd], pollset);
+                    
+                    if (event & APR_POLLIN) {
+                        last_pollfd = curr_pollfd;
+                        sd = listening_sockets[curr_pollfd];
+                        goto got_fd;
+                    }
+                } while (curr_pollfd != last_pollfd);
+            }
+        }
+    got_fd:
+
+        if (!this_worker_should_exit) {
+            rv = apr_accept(&csd, sd, ptrans);
+
+            apr_thread_mutex_unlock(accept_mutex);
+            if (rv != APR_SUCCESS) {
+                ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf,
+                  "apr_accept");
+            } else {
+                process_socket(ptrans, csd, child_slot, bucket_alloc);
+                requests_this_child--;
+            }
+        }
+        else {
+            apr_thread_mutex_unlock(accept_mutex);
+            break;
+        }
+        apr_pool_clear(ptrans);
+    }
+
+    ap_update_child_status_from_indexes(0, child_slot, SERVER_DEAD, (request_rec*)NULL);
+
+    apr_bucket_alloc_destroy(bucket_alloc);
+
+    ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, NULL,
+                 "worker_thread %ld exiting", find_thread(NULL));
+    
+    apr_thread_mutex_lock(worker_thread_count_mutex);
+    worker_thread_count--;
+    apr_thread_mutex_unlock(worker_thread_count_mutex);
+
+    return (0);
+}
+
+static int make_worker(int slot)
+{
+    thread_id tid;
+    proc_info *my_info = (proc_info *)malloc(sizeof(proc_info)); /* freed by thread... */
+
+    if (my_info == NULL) {
+        ap_log_error(APLOG_MARK, APLOG_ALERT, errno, ap_server_conf,
+            "malloc: out of memory");
+        clean_child_exit(APEXIT_CHILDFATAL);
+    }
+    
+    my_info->slot = slot;
+    apr_pool_create(&my_info->tpool, pchild);
+    
+    if (slot + 1 > ap_max_child_assigned)
+	    ap_max_child_assigned = slot + 1;
+
+    if (one_process) {
+    	set_signals();
+        ap_scoreboard_image->parent[0].pid = getpid();
+        return 0;
+    }
+
+    (void) ap_update_child_status_from_indexes(0, slot, SERVER_STARTING, (request_rec*)NULL);
+    tid = spawn_thread(worker_thread, "apache_worker", B_NORMAL_PRIORITY,
+        my_info);
+    if (tid < B_NO_ERROR) {
+        ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL, 
+            "spawn_thread: Unable to start a new thread");
+        /* In case system resources are maxxed out, we don't want
+         * Apache running away with the CPU trying to fork over and
+         * over and over again. 
+         */
+        (void) ap_update_child_status_from_indexes(0, slot, SERVER_DEAD, 
+                                                   (request_rec*)NULL);
+        
+    	sleep(10);
+        free(my_info);
+        
+    	return -1;
+    }
+    resume_thread(tid);
+
+    ap_scoreboard_image->servers[0][slot].tid = tid;
+    return 0;
+}
+
+static void check_restart(void *data)
+{
+    if (!restart_pending && !shutdown_pending) {
+        int slot = (int)data;
+        make_worker(slot);
+        ap_log_error(APLOG_MARK, APLOG_INFO, 0, NULL, 
+            "spawning a new worker thread in slot %d", slot);
+    }
+}
+
+/* start up a bunch of children */
+static void startup_threads(int number_to_start)
+{
+    int i;
+
+    for (i = 0; number_to_start && i < ap_thread_limit; ++i) {
+	if (ap_scoreboard_image->servers[0][i].tid) {
+	    continue;
+	}
+	if (make_worker(i) < 0) {
+	    break;
+	}
+	--number_to_start;
+    }
+}
+
+
+/*
+ * spawn_rate is the number of children that will be spawned on the
+ * next maintenance cycle if there aren't enough idle servers.  It is
+ * doubled up to MAX_SPAWN_RATE, and reset only when a cycle goes by
+ * without the need to spawn.
+ */
+static int spawn_rate = 1;
+#ifndef MAX_SPAWN_RATE
+#define MAX_SPAWN_RATE	(32)
+#endif
+static int hold_off_on_exponential_spawning;
+
+static void perform_idle_server_maintenance(void)
+{
+    int i;
+    int free_length;
+    int free_slots[MAX_SPAWN_RATE];
+    int last_non_dead  = -1;
+
+    /* initialize the free_list */
+    free_length = 0;
+
+    for (i = 0; i < ap_thread_limit; ++i) {
+        if (ap_scoreboard_image->servers[0][i].tid == 0) {
+            if (free_length < spawn_rate) {
+                free_slots[free_length] = i;
+                ++free_length;
+            }
+        }
+        else {
+            last_non_dead = i;
+        }
+
+    	if (i >= ap_max_child_assigned && free_length >= spawn_rate) {
+	         break;
+	    }
+    }
+    ap_max_child_assigned = last_non_dead + 1;
+
+    if (free_length > 0) {
+    	for (i = 0; i < free_length; ++i) {
+	        make_worker(free_slots[i]);
+	    }
+	    /* the next time around we want to spawn twice as many if this
+	     * wasn't good enough, but not if we've just done a graceful
+	     */
+	    if (hold_off_on_exponential_spawning) {
+	        --hold_off_on_exponential_spawning;
+	    } else if (spawn_rate < MAX_SPAWN_RATE) {
+	        spawn_rate *= 2;
+	    }
+    } else {
+        spawn_rate = 1;
+    }
+}
+
+static void server_main_loop(int remaining_threads_to_start)
+{
+    int child_slot;
+    apr_exit_why_e exitwhy;
+    int status;
+    apr_proc_t pid;
+    int i;
+
+    while (!restart_pending && !shutdown_pending) {
+
+        ap_wait_or_timeout(&exitwhy, &status, &pid, pconf);
+         
+        if (pid.pid >= 0) {
+            if (ap_process_child_status(&pid, exitwhy, status) == APEXIT_CHILDFATAL) {
+                shutdown_pending = 1;
+                child_fatal = 1;
+                return;
+            }
+            /* non-fatal death... note that it's gone in the scoreboard. */
+            child_slot = -1;
+            for (i = 0; i < ap_max_child_assigned; ++i) {
+        	if (ap_scoreboard_image->servers[0][i].tid == pid.pid) {
+                    child_slot = i;
+                    break;
+                }
+            }
+            if (child_slot >= 0) {
+                ap_scoreboard_image->servers[0][child_slot].tid = 0;
+                (void) ap_update_child_status_from_indexes(0, child_slot, 
+                                                           SERVER_DEAD, 
+                                                           (request_rec*)NULL);
+                
+                if (remaining_threads_to_start
+		            && child_slot < ap_thread_limit) {
+                    /* we're still doing a 1-for-1 replacement of dead
+                     * children with new children
+                     */
+                    make_worker(child_slot);
+                    --remaining_threads_to_start;
+		        }
+#if APR_HAS_OTHER_CHILD
+            }
+            else if (apr_proc_other_child_read(&pid, status) == 0) {
+    		/* handled */
+#endif
+            }
+            else if (is_graceful) {
+                /* Great, we've probably just lost a slot in the
+                 * scoreboard.  Somehow we don't know about this
+                 * child.
+                 */
+                 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ap_server_conf,
+			                  "long lost child came home! (pid %ld)", pid.pid);
+            }
+	    
+            /* Don't perform idle maintenance when a child dies,
+             * only do it when there's a timeout.  Remember only a
+             * finite number of children can die, and it's pretty
+             * pathological for a lot to die suddenly.
+             */
+             continue;
+         }
+	     else if (remaining_threads_to_start) {
+             /* we hit a 1 second timeout in which none of the previous
+              * generation of children needed to be reaped... so assume
+              * they're all done, and pick up the slack if any is left.
+              */
+              startup_threads(remaining_threads_to_start);
+              remaining_threads_to_start = 0;
+              /* In any event we really shouldn't do the code below because
+               * few of the servers we just started are in the IDLE state
+               * yet, so we'd mistakenly create an extra server.
+               */
+              continue;
+         }
+         perform_idle_server_maintenance();
+    }
+}
+
+AP_DECLARE(apr_status_t) ap_mpm_query(int query_code, int *result)
+{
+    switch(query_code){
+        case AP_MPMQ_MAX_DAEMON_USED:
+            *result = ap_max_child_assigned;
+            return APR_SUCCESS;
+        case AP_MPMQ_IS_THREADED:
+            *result = AP_MPMQ_DYNAMIC;
+            return APR_SUCCESS;
+        case AP_MPMQ_IS_FORKED:
+            *result = AP_MPMQ_NOT_SUPPORTED;
+            return APR_SUCCESS;
+        case AP_MPMQ_HARD_LIMIT_DAEMONS:
+            *result = HARD_SERVER_LIMIT;
+            return APR_SUCCESS;
+        case AP_MPMQ_HARD_LIMIT_THREADS:
+            *result = HARD_THREAD_LIMIT;
+            return APR_SUCCESS;
+        case AP_MPMQ_MAX_THREADS:
+            *result = HARD_THREAD_LIMIT;
+            return APR_SUCCESS;
+        case AP_MPMQ_MIN_SPARE_DAEMONS:
+            *result = 0;
+            return APR_SUCCESS;
+        case AP_MPMQ_MIN_SPARE_THREADS:    
+            *result = max_spare_threads;
+            return APR_SUCCESS;
+        case AP_MPMQ_MAX_SPARE_DAEMONS:
+            *result = 0;
+            return APR_SUCCESS;
+        case AP_MPMQ_MAX_SPARE_THREADS:
+            *result = min_spare_threads;
+            return APR_SUCCESS;
+        case AP_MPMQ_MAX_REQUESTS_DAEMON:
+            *result = ap_max_requests_per_thread;
+            return APR_SUCCESS;
+        case AP_MPMQ_MAX_DAEMONS:
+            *result = HARD_SERVER_LIMIT;
+            return APR_SUCCESS;
+        case AP_MPMQ_MPM_STATE:
+            *result = mpm_state;
+            return APR_SUCCESS;
+    }
+    return APR_ENOTIMPL;
+}
+
+int ap_mpm_run(apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
+{
+    int remaining_threads_to_start, i,j;
+    apr_status_t rv;
+    ap_listen_rec *lr;    
+    pconf = _pconf;
+    ap_server_conf = s;
+
+    /* Increase the available pool of fd's.  This code from
+     * Joe Kloss <joek@be.com>
+     */
+    if( FD_SETSIZE > 128 && (i = _kset_fd_limit_( 128 )) < 0 ){
+        ap_log_error(APLOG_MARK, APLOG_ERR, i, s,
+            "could not set FD_SETSIZE (_kset_fd_limit_ failed)");
+    }
+
+    /* BeOS R5 doesn't support pipes on select() calls, so we use a 
+       UDP socket as these are supported in both R5 and BONE.  If we only cared
+       about BONE we'd use a pipe, but there it is.
+       As we have UDP support in APR, now use the APR functions and check all the
+       return values...
+      */
+    if (apr_sockaddr_info_get(&udp_sa, "127.0.0.1", APR_UNSPEC, 7772, 0, _pconf)
+        != APR_SUCCESS){
+        ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
+            "couldn't create control socket information, shutting down");
+        return 1;
+    }
+    if (apr_socket_create(&udp_sock, udp_sa->family, SOCK_DGRAM,
+                      _pconf) != APR_SUCCESS){
+        ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
+            "couldn't create control socket, shutting down");
+        return 1;
+    }
+    if (apr_bind(udp_sock, udp_sa) != APR_SUCCESS){
+        ap_log_error(APLOG_MARK, APLOG_ALERT, errno, s,
+            "couldn't bind UDP socket!");
+        return 1;
+    }
+ 
+    if ((num_listening_sockets = ap_setup_listeners(ap_server_conf)) < 1) {
+        ap_log_error(APLOG_MARK, APLOG_ALERT, 0, s,
+            "no listening sockets available, shutting down");
+        return 1;
+    }
+
+    ap_log_pid(pconf, ap_pid_fname);
+
+    /*
+     * Create our locks... 
+     */
+    
+    /* accept_mutex
+     * used to lock around select so we only have one thread
+     * in select at a time
+     */
+    rv = apr_thread_mutex_create(&accept_mutex, 0, pconf);
+    if (rv != APR_SUCCESS) {
+        /* tsch tsch, can't have more than one thread in the accept loop
+           at a time so we need to fall on our sword... */
+        ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
+                     "Couldn't create accept lock");
+        return 1;
+    }
+
+    /* worker_thread_count_mutex
+     * locks the worker_thread_count so we have ana ccurate count...
+     */
+    rv = apr_thread_mutex_create(&worker_thread_count_mutex, 0, pconf);
+    if (rv != APR_SUCCESS) {
+        ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s,
+                     "Couldn't create worker thread count lock");
+        return 1;
+    }
+
+    /*
+     * Startup/shutdown... 
+     */
+    
+    if (!is_graceful) {
+        /* setup the scoreboard shared memory */
+        if (ap_run_pre_mpm(s->process->pool, SB_SHARED) != OK) {
+            return 1;
+        }
+
+        for (i = 0; i < HARD_SERVER_LIMIT; i++) {
+            ap_scoreboard_image->parent[i].pid = 0;
+            for (j = 0;j < HARD_THREAD_LIMIT; j++)
+                ap_scoreboard_image->servers[i][j].tid = 0;
+        }
+    }
+
+    if (HARD_SERVER_LIMIT == 1)
+        ap_scoreboard_image->parent[0].pid = getpid();
+
+    set_signals();
+
+    /* Sanity checks to avoid thrashing... */
+    if (max_spare_threads < min_spare_threads )
+        max_spare_threads = min_spare_threads;
+
+    /* If we're doing a graceful_restart then we're going to see a lot
+     * of threads exiting immediately when we get into the main loop
+     * below (because we just sent them AP_SIG_GRACEFUL).  This happens 
+     * pretty rapidly... and for each one that exits we'll start a new one 
+     * until we reach at least threads_min_free.  But we may be permitted to
+     * start more than that, so we'll just keep track of how many we're
+     * supposed to start up without the 1 second penalty between each fork.
+     */
+    remaining_threads_to_start = ap_threads_to_start;
+    /* sanity check on the number to start... */
+    if (remaining_threads_to_start > ap_thread_limit) {
+	    remaining_threads_to_start = ap_thread_limit;
+    }
+
+    /* setup the child pool to use for the workers.  Each worker creates
+     * a seperate pool of its own to use.
+     */
+    apr_pool_create(&pchild, pconf);
+
+    /* Now that we have the child pool (pchild) we can allocate
+     * the listenfds and creat the pollset...
+     */
+    listening_sockets = apr_palloc(pchild,
+       sizeof(*listening_sockets) * (num_listening_sockets + 1));
+
+    listening_sockets[0] = udp_sock;
+    for (lr = ap_listeners, i = 1; i <= num_listening_sockets; lr = lr->next, ++i)
+	    listening_sockets[i]=lr->sd;
+
+    /* we assume all goes OK...hmm might want to check that! */
+    /* if we're in one_process mode we don't want to start threads
+     * do we??
+     */
+    if (!is_graceful && !one_process) {
+	    startup_threads(remaining_threads_to_start);
+	    remaining_threads_to_start = 0;
+    }
+    else {
+	    /* give the system some time to recover before kicking into
+	     * exponential mode */
+        hold_off_on_exponential_spawning = 10;
+    }
+
+    /*
+     * record that we've entered the world !
+     */
+    ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
+		"%s configured -- resuming normal operations",
+		ap_get_server_version());
+
+    ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf,
+		"Server built: %s", ap_get_server_built());
+
+    restart_pending = shutdown_pending = 0;
+
+    /*
+     * main_loop until it's all over
+     */
+    if (!one_process) {
+        server_main_loop(remaining_threads_to_start);
+    
+        tell_workers_to_exit(); /* if we get here we're exiting... */
+        sleep(1); /* give them a brief chance to exit */
+    } else {
+        proc_info *my_info = (proc_info *)malloc(sizeof(proc_info));
+        my_info->slot = 0;
+        apr_pool_create(&my_info->tpool, pchild);
+        worker_thread(my_info);
+    }
+        
+    /* close the UDP socket we've been using... */
+    apr_socket_close(listening_sockets[0]);
+
+    if ((one_process || shutdown_pending) && !child_fatal) {
+        const char *pidfile = NULL;
+        pidfile = ap_server_root_relative (pconf, ap_pid_fname);
+        if ( pidfile != NULL && unlink(pidfile) == 0)
+            ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf,
+                         "removed PID file %s (pid=%ld)", pidfile, 
+                         (long)getpid());
+    }
+
+    if (one_process) {
+        return 1;
+    }
+        
+    /*
+     * If we get here we're shutting down...
+     */
+    if (shutdown_pending) {
+        /* Time to gracefully shut down:
+         * Kill child processes, tell them to call child_exit, etc...
+         */
+        if (beosd_killpg(getpgrp(), SIGTERM) < 0)
+            ap_log_error(APLOG_MARK, APLOG_WARNING, errno, ap_server_conf,
+             "killpg SIGTERM");
+      
+        /* use ap_reclaim_child_processes starting with SIGTERM */
+        ap_reclaim_child_processes(1);
+
+        if (!child_fatal) {         /* already recorded */
+            /* record the shutdown in the log */
+            ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
+                         "caught SIGTERM, shutting down");
+        }
+    
+        return 1;
+    }
+
+    /* we've been told to restart */
+    signal(SIGHUP, SIG_IGN);
+
+    if (is_graceful) {
+        ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
+		    AP_SIG_GRACEFUL_STRING " received.  Doing graceful restart");
+    }
+    else {
+        /* Kill 'em all.  Since the child acts the same on the parents SIGTERM 
+         * and a SIGHUP, we may as well use the same signal, because some user
+         * pthreads are stealing signals from us left and right.
+         */
+	    
+        ap_reclaim_child_processes(1);		/* Start with SIGTERM */
+	    ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
+		    "SIGHUP received.  Attempting to restart");
+    }
+    
+    /* just before we go, tidy up the locks we've created to prevent a 
+     * potential leak of semaphores... */
+    apr_thread_mutex_destroy(worker_thread_count_mutex);
+    apr_thread_mutex_destroy(accept_mutex);
+    
+    return 0;
+}
+
+static int beos_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp)
+{
+    static int restart_num = 0;
+    int no_detach, debug, foreground;
+    apr_status_t rv;
+
+    mpm_state = AP_MPMQ_STARTING;
+
+    debug = ap_exists_config_define("DEBUG");
+
+    if (debug) {
+        foreground = one_process = 1;
+        no_detach = 0;
+    }
+    else
+    {
+        one_process = ap_exists_config_define("ONE_PROCESS");
+        no_detach = ap_exists_config_define("NO_DETACH");
+        foreground = ap_exists_config_define("FOREGROUND");
+    }
+
+    /* sigh, want this only the second time around */
+    if (restart_num++ == 1) {
+        is_graceful = 0;
+        
+        if (!one_process && !foreground) {
+            rv = apr_proc_detach(no_detach ? APR_PROC_DETACH_FOREGROUND
+                                           : APR_PROC_DETACH_DAEMONIZE);
+            if (rv != APR_SUCCESS) {
+                ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
+                             "apr_proc_detach failed");
+                return HTTP_INTERNAL_SERVER_ERROR;
+            }                  
+        }
+
+        server_pid = getpid();
+    }
+
+    beosd_pre_config();
+    ap_listen_pre_config();
+    ap_threads_to_start = DEFAULT_START_THREADS;
+    min_spare_threads = DEFAULT_MIN_FREE_THREADS;
+    max_spare_threads = DEFAULT_MAX_FREE_THREADS;
+    ap_thread_limit = HARD_THREAD_LIMIT;
+    ap_pid_fname = DEFAULT_PIDLOG;
+    ap_max_requests_per_thread = DEFAULT_MAX_REQUESTS_PER_THREAD;
+#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE
+	ap_max_mem_free = APR_ALLOCATOR_MAX_FREE_UNLIMITED;
+#endif
+
+    apr_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir));
+
+    return OK;
+}
+
+static void beos_hooks(apr_pool_t *p)
+{
+    one_process = 0;
+    
+    ap_hook_pre_config(beos_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST); 
+}
+
+static const char *set_threads_to_start(cmd_parms *cmd, void *dummy, const char *arg) 
+{
+    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
+    if (err != NULL) {
+        return err;
+    }
+
+    ap_threads_to_start = atoi(arg);
+    if (ap_threads_to_start < 0) {
+        ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
+                     "StartThreads set to a value less than 0, reset to 1");
+        ap_threads_to_start = 1;
+    }
+    return NULL;
+}
+
+static const char *set_min_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)
+{
+    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
+    if (err != NULL) {
+        return err;
+    }
+
+    min_spare_threads = atoi(arg);
+    if (min_spare_threads <= 0) {
+       ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, 
+                    "WARNING: detected MinSpareThreads set to non-positive.");
+       ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
+                    "Resetting to 1 to avoid almost certain Apache failure.");
+       ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, 
+                    "Please read the documentation.");
+       min_spare_threads = 1;
+    }
+       
+    return NULL;
+}
+
+static const char *set_max_spare_threads(cmd_parms *cmd, void *dummy, const char *arg)
+{
+    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
+    if (err != NULL) {
+        return err;
+    }
+
+    max_spare_threads = atoi(arg);
+    return NULL;
+}
+
+static const char *set_threads_limit (cmd_parms *cmd, void *dummy, const char *arg) 
+{
+    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
+    if (err != NULL) {
+        return err;
+    }
+
+    ap_thread_limit = atoi(arg);
+    if (ap_thread_limit > HARD_THREAD_LIMIT) {
+       ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, 
+                    "WARNING: MaxClients of %d exceeds compile time limit "
+                    "of %d servers,", ap_thread_limit, HARD_THREAD_LIMIT);
+       ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, 
+                    " lowering MaxClients to %d.  To increase, please "
+                    "see the", HARD_THREAD_LIMIT);
+       ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, 
+                    " HARD_THREAD_LIMIT define in server/mpm/beos/mpm_default.h.");
+       ap_thread_limit = HARD_THREAD_LIMIT;
+    } 
+    else if (ap_thread_limit < 1) {
+        ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, 
+                     "WARNING: Require MaxClients > 0, setting to %d", HARD_THREAD_LIMIT);
+        ap_thread_limit = HARD_THREAD_LIMIT;
+    }
+    return NULL;
+}
+
+static const char *set_max_requests_per_thread (cmd_parms *cmd, void *dummy, const char *arg)
+{
+    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
+    if (err != NULL) {
+        return err;
+    }
+
+    ap_max_requests_per_thread = atoi(arg);
+    if (ap_max_requests_per_thread < 0) {
+        ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL,
+                     "WARNING: MaxRequestsPerThread was set below 0"
+                     "reset to 0, but this may not be what you want.");
+        ap_max_requests_per_thread = 0;
+    }
+
+    return NULL;
+}
+
+static const command_rec beos_cmds[] = {
+BEOS_DAEMON_COMMANDS,
+LISTEN_COMMANDS,
+AP_INIT_TAKE1( "StartThreads", set_threads_to_start, NULL, RSRC_CONF,
+  "Number of threads to launch at server startup"),
+AP_INIT_TAKE1( "MinSpareThreads", set_min_spare_threads, NULL, RSRC_CONF,
+  "Minimum number of idle children, to handle request spikes"),
+AP_INIT_TAKE1( "MaxSpareThreads", set_max_spare_threads, NULL, RSRC_CONF,
+  "Maximum number of idle children" ),
+AP_INIT_TAKE1( "MaxClients", set_threads_limit, NULL, RSRC_CONF, 
+  "Maximum number of children alive at the same time (max threads)" ),
+AP_INIT_TAKE1( "MaxRequestsPerThread", set_max_requests_per_thread, NULL, RSRC_CONF,
+  "Maximum number of requests served by a thread" ),
+{ NULL }
+};
+
+module AP_MODULE_DECLARE_DATA mpm_beos_module = {
+    MPM20_MODULE_STUFF,
+    NULL,                       /* hook to run before apache parses args */
+    NULL,			/* create per-directory config structure */
+    NULL,			/* merge per-directory config structures */
+    NULL,			/* create per-server config structure */
+    NULL,			/* merge per-server config structures */
+    beos_cmds,		/* command apr_table_t */
+    beos_hooks		/* register_hooks */
+};
+
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.h b/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.h
new file mode 100644
index 00000000..eb8a5509
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/server/mpm/beos/beos.h
@@ -0,0 +1,26 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef APACHE_MPM_BEOS_H
+#define APACHE_MPM_BEOS_H
+
+extern int ap_threads_per_child;
+extern int ap_pipe_of_death[2];
+extern int ap_extended_status;
+extern void clean_child_exit(int);
+extern int max_daemons_limit;
+
+#endif /* APACHE_MPM_BEOS_H */
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/config5.m4 b/rubbos/app/httpd-2.0.64/server/mpm/beos/config5.m4
new file mode 100644
index 00000000..4f201408
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/server/mpm/beos/config5.m4
@@ -0,0 +1,7 @@
+dnl ## XXX - Need a more thorough check of the proper flags to use
+
+if test "$MPM_NAME" = "beos" ; then
+    apache_apr_flags="--enable-threads"
+
+    APACHE_FAST_OUTPUT(server/mpm/$MPM_NAME/Makefile)
+fi
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/mpm.h b/rubbos/app/httpd-2.0.64/server/mpm/beos/mpm.h
new file mode 100644
index 00000000..57221b1c
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/server/mpm/beos/mpm.h
@@ -0,0 +1,40 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef APACHE_MPM_BEOS_H
+#define APACHE_MPM_BEOS_H
+
+#define BEOS_MPM
+#include "scoreboard.h"
+
+#define MPM_NAME "Beos"
+#define MPM_CHILD_PID(i) (ap_scoreboard_image->servers[0][i].tid)
+#define MPM_NOTE_CHILD_KILLED(i) (MPM_CHILD_PID(i) = 0)
+
+#define AP_MPM_WANT_RECLAIM_CHILD_PROCESSES
+#define AP_MPM_WANT_WAIT_OR_TIMEOUT
+#define AP_MPM_WANT_PROCESS_CHILD_STATUS
+#define AP_MPM_WANT_SET_PIDFILE
+#define AP_MPM_WANT_SET_SCOREBOARD
+#define AP_MPM_WANT_SET_MAX_REQUESTS
+#define AP_MPM_WANT_SET_COREDUMPDIR
+#define AP_MPM_WANT_SET_MAX_MEM_FREE
+
+extern int ap_max_child_assigned;
+extern server_rec *ap_server_conf;
+extern int ap_threads_per_child;
+
+#endif /* APACHE_MPM_BEOS_H */
diff --git a/rubbos/app/httpd-2.0.64/server/mpm/beos/mpm_default.h b/rubbos/app/httpd-2.0.64/server/mpm/beos/mpm_default.h
new file mode 100644
index 00000000..7bd0ce48
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/server/mpm/beos/mpm_default.h
@@ -0,0 +1,76 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef APACHE_MPM_DEFAULT_H
+#define APACHE_MPM_DEFAULT_H
+
+/* we use the child (c) as zero in our code... */
+#define AP_ID_FROM_CHILD_THREAD(c, t)     t
+/* as the child is always zero, just return the id... */
+#define AP_CHILD_THREAD_FROM_ID(i)        0 , i
+
+/* Number of threads to spawn off by default --- also, if fewer than
+ * this free when the caretaker checks, it will spawn more.
+ */
+#ifndef DEFAULT_START_THREADS
+#define DEFAULT_START_THREADS 10
+#endif
+
+#ifdef NO_THREADS
+#define DEFAULT_THREADS 1
+#endif
+#ifndef DEFAULT_THREADS
+#define DEFAULT_THREADS 10
+#endif
+
+/* The following 2 settings are used to control the number of threads
+ * we have available.  Normally the DEFAULT_MAX_FREE_THREADS is set
+ * to the same as the HARD_THREAD_LIMIT to avoid churning of starting
+ * new threads to replace threads killed off...
+ */
+
+/* Maximum number of *free* threads --- more than this, and
+ * they will die off.
+ */
+#ifndef DEFAULT_MAX_FREE_THREADS
+#define DEFAULT_MAX_FREE_THREADS HARD_THREAD_LIMIT
+#endif
+
+/* Minimum --- fewer than this, and more will be created */
+#ifndef DEFAULT_MIN_FREE_THREADS
+#define DEFAULT_MIN_FREE_THREADS 1
+#endif
+                   
+/* Where the main/parent process's pid is logged */
+#ifndef DEFAULT_PIDLOG
+#define DEFAULT_PIDLOG DEFAULT_REL_RUNTIMEDIR "/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_THREAD
+#define DEFAULT_MAX_REQUESTS_PER_THREAD 0
+#endif
+
+#endif /* AP_MPM_DEFAULT_H */