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Name	Size	Permission	Date
ap_compat.h	1.08 KB	-rw-rw-rw-	2006-07-12 00:33
ap_config.h	6.65 KB	-rw-rw-rw-	2012-08-15 03:59
ap_config_layout.h	1.21 KB	-rw-rw-rw-	2022-01-02 15:34
ap_expr.h	14.09 KB	-rw-rw-rw-	2020-02-21 02:33
ap_hooks.h	6.01 KB	-rw-rw-rw-	2011-09-23 22:08
ap_listen.h	5.85 KB	-rw-rw-rw-	2016-05-30 23:26
ap_mmn.h	39.26 KB	-rw-rw-rw-	2023-08-29 11:23
ap_mpm.h	10.68 KB	-rw-rw-rw-	2020-04-23 16:32
ap_provider.h	3.55 KB	-rw-rw-rw-	2012-07-03 23:29
ap_regex.h	11.43 KB	-rw-rw-rw-	2022-02-28 13:56
ap_regkey.h	9.18 KB	-rw-rw-rw-	2011-09-23 17:38
ap_release.h	3.15 KB	-rw-rw-rw-	2023-10-16 17:28
ap_slotmem.h	7.26 KB	-rw-rw-rw-	2013-11-17 22:10
ap_socache.h	9.39 KB	-rw-rw-rw-	2012-02-11 00:47
apache_noprobes.h	15.93 KB	-rw-rw-rw-	2012-04-05 00:11
apr.h	18.28 KB	-rw-rw-rw-	2023-03-27 15:53
apr_allocator.h	6.25 KB	-rw-rw-rw-	2018-08-25 17:48
apr_anylock.h	5.06 KB	-rw-rw-rw-	2007-01-15 21:00
apr_atomic.h	6.25 KB	-rw-rw-rw-	2018-09-17 22:20
apr_base64.h	3.86 KB	-rw-rw-rw-	2012-12-23 00:24
apr_buckets.h	64.71 KB	-rw-rw-rw-	2021-09-18 17:25
apr_crypto.h	20.18 KB	-rw-rw-rw-	2017-06-14 00:28
apr_cstr.h	11.42 KB	-rw-rw-rw-	2016-12-03 22:49
apr_date.h	3.57 KB	-rw-rw-rw-	2007-01-15 21:00
apr_dbd.h	23.88 KB	-rw-rw-rw-	2017-04-02 21:57
apr_dbm.h	8.62 KB	-rw-rw-rw-	2008-11-21 08:20
apr_dso.h	2.73 KB	-rw-rw-rw-	2006-08-03 14:55
apr_encode.h	30.98 KB	-rw-rw-rw-	2022-10-18 11:38
apr_env.h	2.12 KB	-rw-rw-rw-	2009-09-26 00:07
apr_errno.h	55.08 KB	-rw-rw-rw-	2016-03-03 18:11
apr_escape.h	17.65 KB	-rw-rw-rw-	2018-08-26 14:24
apr_escape_test_char.h	1.4 KB	-rw-rw-rw-	2023-03-27 15:53
apr_file_info.h	17.59 KB	-rw-rw-rw-	2018-08-26 14:01
apr_file_io.h	43.11 KB	-rw-rw-rw-	2017-03-30 23:53
apr_fnmatch.h	6.23 KB	-rw-rw-rw-	2014-04-15 17:55
apr_general.h	7.36 KB	-rw-rw-rw-	2018-08-26 14:01
apr_getopt.h	6 KB	-rw-rw-rw-	2006-08-03 14:55
apr_global_mutex.h	7.38 KB	-rw-rw-rw-	2017-04-08 01:20
apr_hash.h	10.36 KB	-rw-rw-rw-	2020-11-08 10:13
apr_hooks.h	12.71 KB	-rw-rw-rw-	2013-10-03 17:32
apr_inherit.h	2.14 KB	-rw-rw-rw-	2013-10-03 17:29
apr_ldap.h	5.76 KB	-rw-rw-rw-	2023-01-24 11:36
apr_ldap_init.h	5.81 KB	-rw-rw-rw-	2009-02-19 10:04
apr_ldap_option.h	8.65 KB	-rw-rw-rw-	2009-02-19 10:04
apr_ldap_rebind.h	3.19 KB	-rw-rw-rw-	2009-02-19 10:04
apr_ldap_url.h	3.83 KB	-rw-rw-rw-	2009-02-19 10:04
apr_lib.h	8.47 KB	-rw-rw-rw-	2014-01-16 22:26
apr_md4.h	4.55 KB	-rw-rw-rw-	2007-01-15 21:00
apr_md5.h	6.37 KB	-rw-rw-rw-	2012-07-06 15:41
apr_memcache.h	17.25 KB	-rw-rw-rw-	2010-11-26 16:39
apr_mmap.h	5.18 KB	-rw-rw-rw-	2013-10-03 17:29
apr_network_io.h	36.95 KB	-rw-rw-rw-	2019-05-04 18:44
apr_optional.h	2.8 KB	-rw-rw-rw-	2007-01-15 21:00
apr_optional_hooks.h	3.9 KB	-rw-rw-rw-	2013-10-03 17:32
apr_perms_set.h	1.93 KB	-rw-rw-rw-	2014-04-28 16:08
apr_poll.h	21.04 KB	-rw-rw-rw-	2016-03-25 03:19
apr_pools.h	31.73 KB	-rw-rw-rw-	2022-06-18 00:09
apr_portable.h	20.56 KB	-rw-rw-rw-	2018-08-26 14:01
apr_proc_mutex.h	7.04 KB	-rw-rw-rw-	2017-04-08 01:20
apr_queue.h	4.12 KB	-rw-rw-rw-	2013-10-03 17:32
apr_random.h	5.07 KB	-rw-rw-rw-	2007-07-21 06:16
apr_redis.h	16.07 KB	-rw-rw-rw-	2017-09-27 20:02
apr_reslist.h	7.19 KB	-rw-rw-rw-	2013-10-03 17:32
apr_ring.h	19.28 KB	-rw-rw-rw-	2022-01-06 14:11
apr_rmm.h	4.8 KB	-rw-rw-rw-	2007-01-15 21:00
apr_sdbm.h	6.14 KB	-rw-rw-rw-	2007-10-23 13:59
apr_sha1.h	3.91 KB	-rw-rw-rw-	2007-01-15 21:00
apr_shm.h	9.48 KB	-rw-rw-rw-	2014-04-28 17:15
apr_signal.h	2.8 KB	-rw-rw-rw-	2007-08-05 19:48
apr_siphash.h	6.16 KB	-rw-rw-rw-	2017-06-15 00:00
apr_skiplist.h	14.56 KB	-rw-rw-rw-	2018-08-25 17:48
apr_strings.h	14.92 KB	-rw-rw-rw-	2018-08-26 14:01
apr_strmatch.h	2.69 KB	-rw-rw-rw-	2007-01-15 21:00
apr_support.h	1.65 KB	-rw-rw-rw-	2006-08-03 14:55
apr_tables.h	19.4 KB	-rw-rw-rw-	2020-11-08 09:24
apr_thread_cond.h	5.53 KB	-rw-rw-rw-	2007-06-29 21:20
apr_thread_mutex.h	4.51 KB	-rw-rw-rw-	2017-04-08 01:20
apr_thread_pool.h	11.14 KB	-rw-rw-rw-	2008-05-07 23:45
apr_thread_proc.h	36.11 KB	-rw-rw-rw-	2019-03-08 16:52
apr_thread_rwlock.h	4.78 KB	-rw-rw-rw-	2006-08-03 14:55
apr_time.h	7.62 KB	-rw-rw-rw-	2016-03-05 03:40
apr_uri.h	6.61 KB	-rw-rw-rw-	2009-01-07 22:39
apr_user.h	5.34 KB	-rw-rw-rw-	2013-10-03 17:29
apr_uuid.h	2.13 KB	-rw-rw-rw-	2007-01-15 21:00
apr_version.h	5.44 KB	-rw-rw-rw-	2023-04-13 11:38
apr_want.h	3.01 KB	-rw-rw-rw-	2012-08-15 00:48
apr_xlate.h	6.42 KB	-rw-rw-rw-	2007-01-15 21:00
apr_xml.h	12.54 KB	-rw-rw-rw-	2016-06-14 01:57
apu.h	4.76 KB	-rw-rw-rw-	2023-01-24 11:36
apu_errno.h	5.49 KB	-rw-rw-rw-	2009-01-07 22:35
apu_version.h	4.33 KB	-rw-rw-rw-	2023-02-01 09:56
apu_want.h	1.55 KB	-rw-rw-rw-	2023-01-24 11:36
cache_common.h	2.02 KB	-rw-rw-rw-	2013-05-29 00:30
expat.h	43.55 KB	-rw-rw-rw-	2022-10-25 19:09
heartbeat.h	1.62 KB	-rw-rw-rw-	2014-06-17 16:06
http_config.h	57.78 KB	-rw-rw-rw-	2022-02-23 16:39
http_connection.h	7.15 KB	-rw-rw-rw-	2021-09-26 18:11
http_core.h	37.25 KB	-rw-rw-rw-	2023-08-29 11:23
http_log.h	36.82 KB	-rw-rw-rw-	2016-08-25 16:48
http_main.h	3.25 KB	-rw-rw-rw-	2012-03-26 02:24
http_protocol.h	42.06 KB	-rw-rw-rw-	2022-06-01 16:34
http_request.h	26.34 KB	-rw-rw-rw-	2021-08-10 12:27
http_ssl.h	14.93 KB	-rw-rw-rw-	2022-08-22 00:26
http_vhost.h	4.61 KB	-rw-rw-rw-	2021-05-27 17:08
httpd.h	94.69 KB	-rw-rw-rw-	2022-03-09 16:04
mod_auth.h	4.55 KB	-rw-rw-rw-	2020-02-21 02:33
mod_cache.h	7.27 KB	-rw-rw-rw-	2011-12-03 20:02
mod_cgi.h	2.5 KB	-rw-rw-rw-	2011-09-23 17:38
mod_core.h	3.43 KB	-rw-rw-rw-	2012-09-24 13:49
mod_dav.h	100.22 KB	-rw-rw-rw-	2023-01-09 16:52
mod_dbd.h	4.18 KB	-rw-rw-rw-	2011-09-23 17:38
mod_http2.h	4.69 KB	-rw-rw-rw-	2023-08-29 11:23
mod_include.h	4.01 KB	-rw-rw-rw-	2011-09-23 17:38
mod_log_config.h	2.5 KB	-rw-rw-rw-	2011-09-23 17:38
mod_proxy.h	64.99 KB	-rw-rw-rw-	2023-03-31 18:33
mod_request.h	1.65 KB	-rw-rw-rw-	2011-02-18 20:40
mod_rewrite.h	1.41 KB	-rw-rw-rw-	2014-01-23 16:33
mod_so.h	1.23 KB	-rw-rw-rw-	2011-11-30 12:21
mod_ssl.h	4.99 KB	-rw-rw-rw-	2019-07-30 15:23
mod_ssl_openssl.h	4.79 KB	-rw-rw-rw-	2019-07-30 15:23
mod_status.h	2.45 KB	-rw-rw-rw-	2006-07-12 00:33
mod_watchdog.h	7.55 KB	-rw-rw-rw-	2014-09-05 18:19
mpm_common.h	17.39 KB	-rw-rw-rw-	2021-08-10 12:43
os.h	4.5 KB	-rw-rw-rw-	2021-04-21 05:10
scoreboard.h	9.98 KB	-rw-rw-rw-	2020-02-21 02:33
util_cfgtree.h	3.17 KB	-rw-rw-rw-	2011-09-23 17:38
util_charset.h	2.28 KB	-rw-rw-rw-	2014-11-01 11:19
util_cookies.h	4.99 KB	-rw-rw-rw-	2012-01-09 15:18
util_ebcdic.h	2.78 KB	-rw-rw-rw-	2014-11-01 11:19
util_fcgi.h	10.02 KB	-rw-rw-rw-	2020-02-21 02:33
util_filter.h	26.46 KB	-rw-rw-rw-	2013-04-15 16:37
util_ldap.h	18.33 KB	-rw-rw-rw-	2023-07-07 16:03
util_md5.h	2.19 KB	-rw-rw-rw-	2014-07-17 02:11
util_mutex.h	9.29 KB	-rw-rw-rw-	2011-10-09 22:35
util_script.h	9.8 KB	-rw-rw-rw-	2012-01-09 15:18
util_time.h	4.22 KB	-rw-rw-rw-	2023-07-18 01:16
util_varbuf.h	8.28 KB	-rw-rw-rw-	2014-07-19 21:22
util_xml.h	1.36 KB	-rw-rw-rw-	2014-07-19 21:22
zconf.h	16.83 KB	-rw-rw-rw-	2023-04-18 01:35
zlib.h	96.4 KB	-rw-rw-rw-	2023-08-18 12:45

Rename

/* 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.
 */

/**
 * @file  scoreboard.h
 * @brief Apache scoreboard library
 */

#ifndef APACHE_SCOREBOARD_H
#define APACHE_SCOREBOARD_H

#ifdef __cplusplus
extern "C" {
#endif

#if APR_HAVE_SYS_TIME_H
#include <sys/time.h>
#include <sys/times.h>
#endif

#include "ap_config.h"
#include "http_config.h"
#include "apr_thread_proc.h"
#include "apr_portable.h"
#include "apr_shm.h"
#include "apr_optional.h"

/* Scoreboard file, if there is one */
#ifndef DEFAULT_SCOREBOARD
#define DEFAULT_SCOREBOARD "logs/apache_runtime_status"
#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_CLOSING 8        /* Closing the connection */
#define SERVER_GRACEFUL 9       /* server is gracefully finishing request */
#define SERVER_IDLE_KILL 10     /* Server is cleaning up idle children. */
#define SERVER_NUM_STATUS 11    /* number of status settings */

/* Type used for generation indices.  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.  However,
 * this can't work effectively with non-forked architectures.  So while the
 * arrays in the scoreboard never change between the parent and forked
 * children, so they do not require shm storage, the contents of the shm
 * may contain no pointers.
 */
typedef int ap_generation_t;

/* Is the scoreboard shared between processes or not?
 * Set by the MPM when the scoreboard is created.
 */
typedef enum {
    SB_NOT_SHARED = 1,
    SB_SHARED = 2
} ap_scoreboard_e;

/* stuff which is worker specific */
typedef struct worker_score worker_score;
struct worker_score {
#if APR_HAS_THREADS
    apr_os_thread_t tid;
#endif
    int thread_num;
    /* With some MPMs (e.g., worker), a worker_score can represent
     * a thread in a terminating process which is no longer
     * represented by the corresponding process_score.  These MPMs
     * should set pid and generation fields in the worker_score.
     */
    pid_t pid;
    ap_generation_t generation;
    unsigned char status;
    unsigned short conn_count;
    apr_off_t     conn_bytes;
    unsigned long access_count;
    apr_off_t     bytes_served;
    unsigned long my_access_count;
    apr_off_t     my_bytes_served;
    apr_time_t start_time;
    apr_time_t stop_time;
    apr_time_t last_used;
#ifdef HAVE_TIMES
    struct tms times;
#endif
    char client[32];            /* DEPRECATED: Keep 'em small... */
    char request[64];           /* We just want an idea... */
    char vhost[32];             /* What virtual host is being accessed? */
    char protocol[16];          /* What protocol is used on the connection? */
    apr_time_t duration;
    char client64[64];
};

typedef struct {
    int             server_limit;
    int             thread_limit;
    ap_generation_t running_generation; /* the generation of children which
                                         * should still be serving requests.
                                         */
    apr_time_t restart_time;
#ifdef HAVE_TIMES
    struct tms times;
#endif
} global_score;

/* stuff which the parent generally writes and the children rarely read */
typedef struct process_score process_score;
struct process_score {
    pid_t pid;
    ap_generation_t generation; /* generation of this child */
    char quiescing;         /* the process whose pid is stored above is
                             * going down gracefully
                             */
    char not_accepting;     /* the process is busy and is not accepting more
                             * connections (for async MPMs)
                             */
    apr_uint32_t connections;       /* total connections (for async MPMs) */
    apr_uint32_t write_completion;  /* async connections doing write completion */
    apr_uint32_t lingering_close;   /* async connections in lingering close */
    apr_uint32_t keep_alive;        /* async connections in keep alive */
    apr_uint32_t suspended;         /* connections suspended by some module */
    int bucket;  /* Listener bucket used by this child; this field is DEPRECATED
                  * and no longer updated by the MPMs (i.e. always zero).
                  */
};

/* Scoreboard is now in 'local' memory, since it isn't updated once created,
 * even in forked architectures.  Child created-processes (non-fork) will
 * set up these indices into the (possibly relocated) shmem records.
 */
typedef struct {
    global_score *global;
    process_score *parent;
    worker_score **servers;
} scoreboard;

typedef struct ap_sb_handle_t ap_sb_handle_t;

/*
 * Creation and deletion (internal)
 */
int ap_create_scoreboard(apr_pool_t *p, ap_scoreboard_e t);
apr_status_t ap_cleanup_scoreboard(void *d);

/*
 * APIs for MPMs and other modules
 */
AP_DECLARE(int) ap_exists_scoreboard_image(void);
AP_DECLARE(void) ap_increment_counts(ap_sb_handle_t *sbh, request_rec *r);
AP_DECLARE(void) ap_set_conn_count(ap_sb_handle_t *sb, request_rec *r, unsigned short conn_count);

AP_DECLARE(apr_status_t) ap_reopen_scoreboard(apr_pool_t *p, apr_shm_t **shm, int detached);
AP_DECLARE(void) ap_init_scoreboard(void *shared_score);
AP_DECLARE(int) ap_calc_scoreboard_size(void);

AP_DECLARE(void) ap_create_sb_handle(ap_sb_handle_t **new_sbh, apr_pool_t *p,
                                     int child_num, int thread_num);
AP_DECLARE(void) ap_update_sb_handle(ap_sb_handle_t *sbh,
                                     int child_num, int thread_num);

AP_DECLARE(int) ap_find_child_by_pid(apr_proc_t *pid);
AP_DECLARE(int) ap_update_child_status(ap_sb_handle_t *sbh, int status, request_rec *r);
AP_DECLARE(int) ap_update_child_status_from_indexes(int child_num, int thread_num,
                                                    int status, request_rec *r);
AP_DECLARE(int) ap_update_child_status_from_conn(ap_sb_handle_t *sbh, int status, conn_rec *c);
AP_DECLARE(int) ap_update_child_status_from_server(ap_sb_handle_t *sbh, int status, 
                                                   conn_rec *c, server_rec *s);
AP_DECLARE(int) ap_update_child_status_descr(ap_sb_handle_t *sbh, int status, const char *descr);

AP_DECLARE(void) ap_time_process_request(ap_sb_handle_t *sbh, int status);

AP_DECLARE(int) ap_update_global_status(void);

AP_DECLARE(worker_score *) ap_get_scoreboard_worker(ap_sb_handle_t *sbh);

/** Return a pointer to the worker_score for a given child, thread pair.
 * @param child_num The child number.
 * @param thread_num The thread number.
 * @return A pointer to the worker_score structure.
 * @deprecated This function is deprecated, use ap_copy_scoreboard_worker instead. */
AP_DECLARE(worker_score *) ap_get_scoreboard_worker_from_indexes(int child_num,
                                                                int thread_num);

/** Copy the contents of a worker scoreboard entry.  The contents of
 * the worker_score structure are copied verbatim into the dest
 * structure.
 * @param dest Output parameter.
 * @param child_num The child number.
 * @param thread_num The thread number.
 */
AP_DECLARE(void) ap_copy_scoreboard_worker(worker_score *dest,
                                           int child_num, int thread_num);

AP_DECLARE(process_score *) ap_get_scoreboard_process(int x);
AP_DECLARE(global_score *) ap_get_scoreboard_global(void);

AP_DECLARE_DATA extern scoreboard *ap_scoreboard_image;
AP_DECLARE_DATA extern const char *ap_scoreboard_fname;
AP_DECLARE_DATA extern int ap_extended_status;
AP_DECLARE_DATA extern int ap_mod_status_reqtail;

/*
 * Command handlers [internal]
 */
const char *ap_set_scoreboard(cmd_parms *cmd, void *dummy, const char *arg);
const char *ap_set_extended_status(cmd_parms *cmd, void *dummy, int arg);
const char *ap_set_reqtail(cmd_parms *cmd, void *dummy, int arg);

/* Hooks */
/**
  * Hook for post scoreboard creation, pre mpm.
  * @param p       Apache pool to allocate from.
  * @param sb_type
  * @ingroup hooks
  * @return OK or DECLINE on success; anything else is a error
  */
AP_DECLARE_HOOK(int, pre_mpm, (apr_pool_t *p, ap_scoreboard_e sb_type))

/* for time_process_request() in http_main.c */
#define START_PREQUEST 1
#define STOP_PREQUEST  2

#ifdef __cplusplus
}
#endif

#endif  /* !APACHE_SCOREBOARD_H */