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author(no author) <(no author)@unknown>1999-06-18 18:39:23 +0000
committer(no author) <(no author)@unknown>1999-06-18 18:39:23 +0000
commit6c87dba08027e687304e5a40fb0c950347243b15 (patch)
treebc1dcecd450d9eda757c493d53a08e179271f49b /server
parentdb82a6637eb3e5e2afa9aca8a571c32187e072f4 (diff)
downloadhttpd-dgaudet.tar.gz
This commit was manufactured by cvs2svn to create branch 'dgaudet'.dgaudet
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/dgaudet@83344 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'server')
-rw-r--r--server/connection.c236
-rw-r--r--server/mpm/mpmt_pthread/scoreboard.h233
-rw-r--r--server/mpm/prefork/scoreboard.h206
3 files changed, 0 insertions, 675 deletions
diff --git a/server/connection.c b/server/connection.c
deleted file mode 100644
index 16ee8d494f..0000000000
--- a/server/connection.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- * nor may "Apache" appear in their names without prior written
- * permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#define CORE_PRIVATE
-#include "httpd.h"
-#include "http_connection.h"
-#include "http_request.h"
-#include "http_protocol.h"
-#include "ap_mpm.h"
-#include "http_config.h"
-#include "http_vhost.h"
-
-#include <poll.h>
-
-/*
- * More machine-dependent networking gooo... on some systems,
- * you've got to be *really* sure that all the packets are acknowledged
- * before closing the connection, since the client will not be able
- * to see the last response if their TCP buffer is flushed by a RST
- * packet from us, which is what the server's TCP stack will send
- * if it receives any request data after closing the connection.
- *
- * In an ideal world, this function would be accomplished by simply
- * setting the socket option SO_LINGER and handling it within the
- * server's TCP stack while the process continues on to the next request.
- * Unfortunately, it seems that most (if not all) operating systems
- * block the server process on close() when SO_LINGER is used.
- * For those that don't, see USE_SO_LINGER below. For the rest,
- * we have created a home-brew lingering_close.
- *
- * Many operating systems tend to block, puke, or otherwise mishandle
- * calls to shutdown only half of the connection. You should define
- * NO_LINGCLOSE in ap_config.h if such is the case for your system.
- */
-#ifndef MAX_SECS_TO_LINGER
-#define MAX_SECS_TO_LINGER 30
-#endif
-
-#ifdef USE_SO_LINGER
-#define NO_LINGCLOSE /* The two lingering options are exclusive */
-
-static void sock_enable_linger(int s) // ZZZZZ abstract the socket, s
-{
- struct linger li; // ZZZZZ SocketOptions...
-
- li.l_onoff = 1;
- li.l_linger = MAX_SECS_TO_LINGER;
-
- if (setsockopt(s, SOL_SOCKET, SO_LINGER, // ZZZZZ abstract, return SUCCESS or not
- (char *) &li, sizeof(struct linger)) < 0) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, server_conf,
- "setsockopt: (SO_LINGER)");
- /* not a fatal error */
- }
-}
-
-#else
-#define sock_enable_linger(s) /* NOOP */
-#endif /* USE_SO_LINGER */
-
-#ifndef NO_LINGCLOSE
-
-/* Since many clients will abort a connection instead of closing it,
- * attempting to log an error message from this routine will only
- * confuse the webmaster. There doesn't seem to be any portable way to
- * distinguish between a dropped connection and something that might be
- * worth logging.
- */
-/*ZZZ this routine needs to be adapted for use with poll()*/
-static void lingering_close(request_rec *r)
-{
- /*ZZZ remove the hardwired 512. This is an IO Buffer Size */
- char dummybuf[512];
- struct pollfd pd;
- int lsd;
- int max_wait;
-
- /* Prevent a slow-drip client from holding us here indefinitely */
-
- max_wait = 30;
- ap_bsetopt(r->connection->client, BO_TIMEOUT, &max_wait);
-
- /* Send any leftover data to the client, but never try to again */
-
- if (ap_bflush(r->connection->client) == -1) {
- ap_bclose(r->connection->client);
- return;
- }
- ap_bsetflag(r->connection->client, B_EOUT, 1);
-
- /* Close our half of the connection --- send the client a FIN */
-
- lsd = r->connection->client->fd;
-
- if ((shutdown(lsd, 1) != 0) /* ZZZ abstract shutdown */
- || ap_is_aborted(r->connection)) {
- ap_bclose(r->connection->client);
- return;
- }
-
- /* Set up to wait for readable data on socket... */
- pd.fd = lsd;
- pd.events = POLLIN;
-
- /* Wait for readable data or error condition on socket;
- * slurp up any data that arrives... We exit when we go for an
- * interval of tv length without getting any more data, get an error
- * from poll(), get an error or EOF on a read, or the timer expires.
- */
- /* We use a 2 second timeout because current (Feb 97) browsers
- * fail to close a connection after the server closes it. Thus,
- * to avoid keeping the child busy, we are only lingering long enough
- * for a client that is actively sending data on a connection.
- * This should be sufficient unless the connection is massively
- * losing packets, in which case we might have missed the RST anyway.
- * These parameters are reset on each pass, since they might be
- * changed by poll.
- */
- do {
- pd.revents = 0;
- } while ((poll(&pd, 1, 2) == 1)
- && read(lsd, dummybuf, sizeof(dummybuf)));
- /* && (time() = epoch) < max_wait); */ /* ZZZZ time function is not good... */
-
- /* Should now have seen final ack. Safe to finally kill socket */
- ap_bclose(r->connection->client);
-}
-#endif /* ndef NO_LINGCLOSE */
-
-
-CORE_EXPORT(void) ap_process_connection(conn_rec *c)
-{
- request_rec *r;
-
- ap_update_vhost_given_ip(c);
-
- /*
- * Read and process each request found on our connection
- * until no requests are left or we decide to close.
- */
-
- while ((r = ap_read_request(c)) != NULL) {
-
- /* process the request if it was read without error */
-
- if (r->status == HTTP_OK)
- ap_process_request(r);
-
- if (!c->keepalive || c->aborted)
- break;
-
- ap_destroy_pool(r->pool);
-
- if (ap_mpm_graceful_stop()) {
- /* XXX: hey wait, this should do a lingering_close! */
- ap_bclose(c->client);
- return;
- }
- }
-
- /*
- * Close the connection, being careful to send out whatever is still
- * in our buffers. If possible, try to avoid a hard close until the
- * client has ACKed our FIN and/or has stopped sending us data.
- */
-
-#ifdef NO_LINGCLOSE
- ap_bclose(c->client); /* just close it */
-#else
- if (r && r->connection
- && !r->connection->aborted
- && r->connection->client
- && (r->connection->client->fd >= 0)) {
-
- lingering_close(r);
- }
- else {
- ap_bsetflag(c->client, B_EOUT, 1);
- ap_bclose(c->client);
- }
-#endif
-}
diff --git a/server/mpm/mpmt_pthread/scoreboard.h b/server/mpm/mpmt_pthread/scoreboard.h
deleted file mode 100644
index 7efb0074a9..0000000000
--- a/server/mpm/mpmt_pthread/scoreboard.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- * nor may "Apache" appear in their names without prior written
- * permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef APACHE_SCOREBOARD_H
-#define APACHE_SCOREBOARD_H
-#include "pthread.h"
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef WIN32
-#ifdef TPF
-#include <time.h>
-#else
-#include <sys/times.h>
-#endif /* TPF */
-#endif
-
-/* Scoreboard info on a process is, for now, kept very brief ---
- * just status value and pid (the latter so that the caretaker process
- * can properly update the scoreboard when a process dies). We may want
- * to eventually add a separate set of long_score structures which would
- * give, for each process, the number of requests serviced, and info on
- * the current, or most recent, request.
- *
- * Status values:
- */
-
-#define SERVER_DEAD 0
-#define SERVER_STARTING 1 /* Server Starting up */
-#define SERVER_READY 2 /* Waiting for connection (or accept() lock) */
-#define SERVER_BUSY_READ 3 /* Reading a client request */
-#define SERVER_BUSY_WRITE 4 /* Processing a client request */
-#define SERVER_BUSY_KEEPALIVE 5 /* Waiting for more requests via keepalive */
-#define SERVER_BUSY_LOG 6 /* Logging the request */
-#define SERVER_BUSY_DNS 7 /* Looking up a hostname */
-#define SERVER_GRACEFUL 8 /* server is gracefully finishing request */
-#define SERVER_ACCEPTING 9 /* thread is accepting connections */
-#define SERVER_QUEUEING 10 /* thread is putting connection on the queue */
-#define SERVER_NUM_STATUS 11 /* number of status settings */
-
-/* A "virtual time" is simply a counter that indicates that a child is
- * making progress. The parent checks up on each child, and when they have
- * made progress it resets the last_rtime element. But when the child hasn't
- * made progress in a time that's roughly timeout_len seconds long, it is
- * sent a SIGALRM.
- *
- * vtime is an optimization that is used only when the scoreboard is in
- * shared memory (it's not easy/feasible to do it in a scoreboard file).
- * The essential observation is that timeouts rarely occur, the vast majority
- * of hits finish before any timeout happens. So it really sucks to have to
- * ask the operating system to set up and destroy alarms many times during
- * a request.
- */
-typedef unsigned vtime_t;
-
-/* Type used for generation indicies. Startup and every restart cause a
- * new generation of children to be spawned. Children within the same
- * generation share the same configuration information -- pointers to stuff
- * created at config time in the parent are valid across children. For
- * example, the vhostrec pointer in the scoreboard below is valid in all
- * children of the same generation.
- *
- * The safe way to access the vhost pointer is like this:
- *
- * short_score *ss = pointer to whichver slot is interesting;
- * parent_score *ps = pointer to whichver slot is interesting;
- * server_rec *vh = ss->vhostrec;
- *
- * if (ps->generation != ap_my_generation) {
- * vh = NULL;
- * }
- *
- * then if vh is not NULL it's valid in this child.
- *
- * This avoids various race conditions around restarts.
- */
-typedef int ap_generation_t;
-
-/* stuff which is thread specific */
-typedef struct {
-#ifdef OPTIMIZE_TIMEOUTS
- vtime_t cur_vtime; /* the child's current vtime */
- unsigned short timeout_len; /* length of the timeout */
-#endif
- pthread_t tid;
- unsigned char status;
- unsigned long access_count;
- unsigned long bytes_served;
- unsigned long my_access_count;
- unsigned long my_bytes_served;
- unsigned long conn_bytes;
- unsigned short conn_count;
-#if defined(NO_GETTIMEOFDAY)
- clock_t start_time;
- clock_t stop_time;
-#else
- struct timeval start_time;
- struct timeval stop_time;
-#endif
-#ifndef NO_TIMES
- struct tms times;
-#endif
-#ifndef OPTIMIZE_TIMEOUTS
- time_t last_used;
-#endif
- char client[32]; /* Keep 'em small... */
- char request[64]; /* We just want an idea... */
- server_rec *vhostrec; /* What virtual host is being accessed? */
- /* SEE ABOVE FOR SAFE USAGE! */
-} thread_score;
-
-typedef struct {
- ap_generation_t running_generation; /* the generation of children which
- * should still be serving requests. */
-} global_score;
-
-/* stuff which the parent generally writes and the children rarely read */
-typedef struct {
- pid_t pid;
- ap_generation_t generation; /* generation of this child */
- int worker_threads;
- int acceptor_threads;
-#ifdef OPTIMIZE_TIMEOUTS
- time_t last_rtime; /* time(0) of the last change */
- vtime_t last_vtime; /* the last vtime the parent has seen */
-#endif
-} parent_score;
-
-typedef struct {
- thread_score servers[HARD_SERVER_LIMIT][HARD_THREAD_LIMIT];
- parent_score parent[HARD_SERVER_LIMIT];
- global_score global;
-} scoreboard;
-
-#define SCOREBOARD_SIZE sizeof(scoreboard)
-#ifdef TPF
-#define SCOREBOARD_NAME "SCOREBRD"
-#define SCOREBOARD_FRAMES SCOREBOARD_SIZE/4095 + 1
-#endif
-
-API_EXPORT(int) ap_exists_scoreboard_image(void);
-void reinit_scoareboard(pool *p);
-void cleanup_scoreboard(void);
-API_EXPORT(void) ap_sync_scoreboard_image(void);
-
-#if defined(USE_OS2_SCOREBOARD)
-caddr_t create_shared_heap(const char *name, size_t size);
-caddr_t get_shared_heap(const char *Name);
-#elif defined(USE_POSIX_SCOREBOARD)
-static void cleanup_shared_mem(void *d);
-#else
-void reinit_scoreboard(pool *p);
-#endif
-
-API_EXPORT(void) reopen_scoreboard(pool *p);
-
-ap_inline void ap_sync_scoreboard_image(void);
-void increment_counts(int child_num, int thread_num, request_rec *r);
-void update_scoreboard_global(void);
-API_EXPORT(int) find_child_by_pid(int pid);
-int ap_update_child_status(int child_num, int thread_num, int status, request_rec *r);
-void ap_time_process_request(int child_num, int thread_num, int status);
-
-
-
-API_VAR_EXPORT extern scoreboard *ap_scoreboard_image;
-
-API_VAR_EXPORT extern ap_generation_t volatile ap_my_generation;
-
-/* for time_process_request() in http_main.c */
-#define START_PREQUEST 1
-#define STOP_PREQUEST 2
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* !APACHE_SCOREBOARD_H */
diff --git a/server/mpm/prefork/scoreboard.h b/server/mpm/prefork/scoreboard.h
deleted file mode 100644
index a8f88e3f39..0000000000
--- a/server/mpm/prefork/scoreboard.h
+++ /dev/null
@@ -1,206 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- * nor may "Apache" appear in their names without prior written
- * permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef APACHE_SCOREBOARD_H
-#define APACHE_SCOREBOARD_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef WIN32
-#ifdef TPF
-#include <time.h>
-#else
-#include <sys/times.h>
-#endif /* TPF */
-#endif
-
-/* Scoreboard info on a process is, for now, kept very brief ---
- * just status value and pid (the latter so that the caretaker process
- * can properly update the scoreboard when a process dies). We may want
- * to eventually add a separate set of long_score structures which would
- * give, for each process, the number of requests serviced, and info on
- * the current, or most recent, request.
- *
- * Status values:
- */
-
-#define SERVER_DEAD 0
-#define SERVER_STARTING 1 /* Server Starting up */
-#define SERVER_READY 2 /* Waiting for connection (or accept() lock) */
-#define SERVER_BUSY_READ 3 /* Reading a client request */
-#define SERVER_BUSY_WRITE 4 /* Processing a client request */
-#define SERVER_BUSY_KEEPALIVE 5 /* Waiting for more requests via keepalive */
-#define SERVER_BUSY_LOG 6 /* Logging the request */
-#define SERVER_BUSY_DNS 7 /* Looking up a hostname */
-#define SERVER_GRACEFUL 8 /* server is gracefully finishing request */
-#define SERVER_NUM_STATUS 9 /* number of status settings */
-
-/* A "virtual time" is simply a counter that indicates that a child is
- * making progress. The parent checks up on each child, and when they have
- * made progress it resets the last_rtime element. But when the child hasn't
- * made progress in a time that's roughly timeout_len seconds long, it is
- * sent a SIGALRM.
- *
- * vtime is an optimization that is used only when the scoreboard is in
- * shared memory (it's not easy/feasible to do it in a scoreboard file).
- * The essential observation is that timeouts rarely occur, the vast majority
- * of hits finish before any timeout happens. So it really sucks to have to
- * ask the operating system to set up and destroy alarms many times during
- * a request.
- */
-typedef unsigned vtime_t;
-
-/* Type used for generation indicies. Startup and every restart cause a
- * new generation of children to be spawned. Children within the same
- * generation share the same configuration information -- pointers to stuff
- * created at config time in the parent are valid across children. For
- * example, the vhostrec pointer in the scoreboard below is valid in all
- * children of the same generation.
- *
- * The safe way to access the vhost pointer is like this:
- *
- * short_score *ss = pointer to whichver slot is interesting;
- * parent_score *ps = pointer to whichver slot is interesting;
- * server_rec *vh = ss->vhostrec;
- *
- * if (ps->generation != ap_my_generation) {
- * vh = NULL;
- * }
- *
- * then if vh is not NULL it's valid in this child.
- *
- * This avoids various race conditions around restarts.
- */
-typedef int ap_generation_t;
-
-/* stuff which the children generally write, and the parent mainly reads */
-typedef struct {
-#ifdef OPTIMIZE_TIMEOUTS
- vtime_t cur_vtime; /* the child's current vtime */
- unsigned short timeout_len; /* length of the timeout */
-#endif
- unsigned char status;
- unsigned long access_count;
- unsigned long bytes_served;
- unsigned long my_access_count;
- unsigned long my_bytes_served;
- unsigned long conn_bytes;
- unsigned short conn_count;
-#if defined(NO_GETTIMEOFDAY)
- clock_t start_time;
- clock_t stop_time;
-#else
- struct timeval start_time;
- struct timeval stop_time;
-#endif
-#ifndef NO_TIMES
- struct tms times;
-#endif
-#ifndef OPTIMIZE_TIMEOUTS
- time_t last_used;
-#endif
- char client[32]; /* Keep 'em small... */
- char request[64]; /* We just want an idea... */
- server_rec *vhostrec; /* What virtual host is being accessed? */
- /* SEE ABOVE FOR SAFE USAGE! */
-} short_score;
-
-typedef struct {
- ap_generation_t running_generation; /* the generation of children which
- * should still be serving requests. */
-} global_score;
-
-/* stuff which the parent generally writes and the children rarely read */
-typedef struct {
- pid_t pid;
-#ifdef OPTIMIZE_TIMEOUTS
- time_t last_rtime; /* time(0) of the last change */
- vtime_t last_vtime; /* the last vtime the parent has seen */
-#endif
- ap_generation_t generation; /* generation of this child */
-} parent_score;
-
-typedef struct {
- short_score servers[HARD_SERVER_LIMIT];
- parent_score parent[HARD_SERVER_LIMIT];
- global_score global;
-} scoreboard;
-
-#define SCOREBOARD_SIZE sizeof(scoreboard)
-#ifdef TPF
-#define SCOREBOARD_NAME "SCOREBRD"
-#define SCOREBOARD_FRAMES SCOREBOARD_SIZE/4095 + 1
-#endif
-
-API_EXPORT(void) ap_sync_scoreboard_image(void);
-API_EXPORT(int) ap_exists_scoreboard_image(void);
-
-API_VAR_EXPORT extern scoreboard *ap_scoreboard_image;
-
-API_VAR_EXPORT extern ap_generation_t volatile ap_my_generation;
-
-/* for time_process_request() in http_main.c */
-#define START_PREQUEST 1
-#define STOP_PREQUEST 2
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* !APACHE_SCOREBOARD_H */