mpmt_os2.c File Reference

#include "ap_config.h"
#include "httpd.h"
#include "mpm_default.h"
#include "http_main.h"
#include "http_log.h"
#include "http_config.h"
#include "http_core.h"
#include "http_connection.h"
#include "mpm.h"
#include "ap_mpm.h"
#include "ap_listen.h"
#include "apr_portable.h"
#include "mpm_common.h"
#include "apr_strings.h"
#include <os2.h>
#include <process.h>

Include dependency graph for mpmt_os2.c:

Go to the source code of this file.

Defines
#define	CORE_PRIVATE
#define	INCL_NOPMAPI
#define	INCL_DOS
#define	INCL_DOSERRORS
#define	HARD_SERVER_LIMIT   10
#define	HARD_THREAD_LIMIT   256
Functions
static char	master_main ()
static void	spawn_child (int slot)
void	ap_mpm_child_main (apr_pool_t *pconf)
static void	set_signals ()
int	ap_mpm_run (apr_pool_t *_pconf, apr_pool_t *plog, server_rec *s)
static void	sig_term (int sig)
static void	sig_restart (int sig)
	AP_DECLARE (apr_status_t)
int	ap_graceful_stop_signalled (void)
static int	mpmt_os2_pre_config (apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp)
static void	mpmt_os2_hooks (apr_pool_t *p)
static const char *	set_daemons_to_start (cmd_parms *cmd, void *dummy, const char *arg)
static const char *	set_min_spare_threads (cmd_parms *cmd, void *dummy, const char *arg)
static const char *	set_max_spare_threads (cmd_parms *cmd, void *dummy, const char *arg)
static const char *	ignore_cmd (cmd_parms *cmd, void *dummy, const char *arg)
Variables
server_rec *	ap_server_conf
static apr_pool_t *	pconf = NULL
static const char *	ap_pid_fname = NULL
static int	one_process = 0
static int	ap_daemons_to_start = 0
static int	ap_thread_limit = 0
static int	ap_max_requests_per_child = 0
int	ap_min_spare_threads = 0
int	ap_max_spare_threads = 0
int	ap_max_daemons_limit = -1
static int volatile	shutdown_pending
static int volatile	restart_pending
static int volatile	is_graceful = 0
ap_generation_t volatile	ap_my_generation = 0
static int	is_parent_process = TRUE
HMTX	ap_mpm_accept_mutex = 0
static const command_rec	mpmt_os2_cmds []
module AP_MODULE_DECLARE_DATA	mpm_mpmt_os2_module

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Define Documentation

#define CORE_PRIVATE

Definition at line 39 of file mpmt_os2.c.

#define HARD_SERVER_LIMIT   10

Definition at line 64 of file mpmt_os2.c.

#define HARD_THREAD_LIMIT   256

Definition at line 69 of file mpmt_os2.c.

#define INCL_DOS

Definition at line 41 of file mpmt_os2.c.

#define INCL_DOSERRORS

Definition at line 42 of file mpmt_os2.c.

#define INCL_NOPMAPI

Definition at line 40 of file mpmt_os2.c.

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Function Documentation

AP_DECLARE (  apr_status_t   )

convert a recent time to its human readable components in local timezone Parameters: tm  the exploded time t  the time to explode: MUST be within the last AP_TIME_RECENT_THRESHOLD seconds Note: This is a faster alternative to apr_explode_localtime that uses a cache of pre-exploded time structures. It is useful for things that need to explode the current time multiple times per second, like loggers. Returns: APR_SUCCESS iff successful Definition at line 418 of file mpmt_os2.c. References AP_DECLARE, ap_max_daemons_limit, ap_max_requests_per_child, AP_MPMQ_DYNAMIC, AP_MPMQ_HARD_LIMIT_DAEMONS, AP_MPMQ_HARD_LIMIT_THREADS, AP_MPMQ_IS_FORKED, AP_MPMQ_IS_THREADED, AP_MPMQ_MAX_DAEMON_USED, AP_MPMQ_MAX_REQUESTS_DAEMON, AP_MPMQ_MAX_SPARE_DAEMONS, AP_MPMQ_MIN_SPARE_DAEMONS, AP_MPMQ_NOT_SUPPORTED, APR_ENOTIMPL, APR_SUCCESS, HARD_SERVER_LIMIT, and HARD_THREAD_LIMIT.

int ap_graceful_stop_signalled (  void   )

Definition at line 451 of file mpmt_os2.c. References is_graceful.

void ap_mpm_child_main (  apr_pool_t *  pconf  )

Definition at line 92 of file mpmt_os2_child.c. References _beginthread, ap_init_scoreboard(), ap_listeners, ap_max_requests_per_child, ap_min_spare_threads, ap_mpm_accept_mutex, ap_my_generation, ap_scoreboard_fname, ap_scoreboard_image, ap_server_conf, APEXIT_CHILDFATAL, APLOG_ERR, APLOG_MARK, apr_accept(), APR_FROM_OS_ERROR, APR_LOCAL, APR_POLLIN, apr_pool_create, APR_STATUS_IS_EINTR, APR_SUCCESS, c, child_slot, clean_child_exit(), worker_args_t::conn_sd, event, FALSE, process_score::generation, getpid, scoreboard::global, HARD_SERVER_LIMIT, HARD_THREAD_LIMIT, is_graceful, lr, my_pid, ap_listen_rec::next, nsds, NULL, scoreboard::parent, worker_args_t::pconn, pollset, port, process_score::quiescing, requests_this_child, global_score::running_generation, sa, ap_listen_rec::sd, SERVER_DEAD, server_maintenance(), scoreboard::servers, set_signals(), shutdown_event, shutdown_pending, WORKTYPE_CONN, and WORKTYPE_EXIT. Referenced by ap_mpm_run(), and master_main(). Here is the call graph for this function:

int ap_mpm_run (  apr_pool_t *  _pconf, apr_pool_t *  plog, server_rec *  s )

Definition at line 114 of file mpmt_os2.c. References ap_listeners, ap_mpm_accept_mutex, ap_mpm_child_main(), ap_my_generation, ap_pid_fname, ap_scoreboard_fname, ap_scoreboard_image, ap_setup_listeners(), ap_thread_limit, APLOG_ALERT, APLOG_INFO, APLOG_MARK, APLOG_NOTICE, APR_LOCAL, apr_os_sock_put(), apr_pcalloc, apr_socket_create(), APR_SUCCESS, APR_UNSPEC, ap_listen_rec::bind_addr, DEFAULT_HTTP_PORT, apr_sockaddr_t::family, getpid, scoreboard::global, is_parent_process, lr, master_main(), ap_listen_rec::next, NULL, process_rec::pool, server_rec::process, restart(), restart_pending, global_score::running_generation, sa, ap_listen_rec::sd, and TRUE. Here is the call graph for this function:

static const char* ignore_cmd (  cmd_parms *  cmd, void *  dummy, const char *  arg )  [static]

Definition at line 544 of file mpmt_os2.c. References NULL.

static char master_main (   )  [static]

Definition at line 201 of file mpmt_os2.c. References accept_mutex, ap_daemons_to_start, ap_init_scoreboard(), ap_listeners, ap_mpm_accept_mutex, ap_mpm_child_main(), ap_scoreboard_fname, ap_scoreboard_image, ap_setup_listeners(), APEXIT_CHILDFATAL, APLOG_ALERT, APLOG_DEBUG, APLOG_ERR, APLOG_INFO, APLOG_MARK, APLOG_NOTICE, APR_FROM_OS_ERROR, apr_os_sock_get(), FALSE, getpid, scoreboard::global, HARD_SERVER_LIMIT, is_graceful, lr, ap_listen_rec::next, NULL, one_process, scoreboard::parent, process_score::pid, process_score::quiescing, restart_pending, global_score::restart_time, s, SCOREBOARD_MAINTENANCE_INTERVAL, ap_listen_rec::sd, set_signals(), shutdown_pending, and spawn_child(). Referenced by ap_mpm_run(). Here is the call graph for this function:

static void mpmt_os2_hooks (  apr_pool_t *  p  )  [static]

Definition at line 482 of file mpmt_os2.c. References APR_HOOK_MIDDLE, mpmt_os2_pre_config(), and NULL. Here is the call graph for this function:

static int mpmt_os2_pre_config (  apr_pool_t *  pconf, apr_pool_t *  plog, apr_pool_t *  ptemp )  [static]

Definition at line 460 of file mpmt_os2.c. References ap_daemons_to_start, ap_extended_status, ap_listen_pre_config(), ap_max_requests_per_child, ap_max_spare_threads, ap_min_spare_threads, ap_pid_fname, ap_thread_limit, APR_ALLOCATOR_MAX_FREE_UNLIMITED, DEFAULT_MAX_REQUESTS_PER_CHILD, DEFAULT_MAX_SPARE_THREAD, DEFAULT_MIN_SPARE_THREAD, DEFAULT_PIDLOG, DEFAULT_START_DAEMON, HARD_THREAD_LIMIT, is_graceful, OK, and one_process. Referenced by mpmt_os2_hooks(). Here is the call graph for this function:

static const char* set_daemons_to_start (  cmd_parms *  cmd, void *  dummy, const char *  arg )  [static]

Definition at line 489 of file mpmt_os2.c. References ap_daemons_to_start, err, GLOBAL_ONLY, and NULL.

static const char* set_max_spare_threads (  cmd_parms *  cmd, void *  dummy, const char *  arg )  [static]

Definition at line 529 of file mpmt_os2.c. References ap_max_spare_threads, err, GLOBAL_ONLY, and NULL.

static const char* set_min_spare_threads (  cmd_parms *  cmd, void *  dummy, const char *  arg )  [static]

Definition at line 503 of file mpmt_os2.c. References ap_min_spare_threads, APLOG_MARK, APLOG_STARTUP, err, GLOBAL_ONLY, and NULL.

static void set_signals (   )  [static]

Definition at line 392 of file mpmt_os2.c. References APLOG_MARK, APLOG_WARNING, NULL, sig_restart(), and sig_term(). Here is the call graph for this function:

static void sig_restart (  int  sig  )  [static]

Definition at line 381 of file mpmt_os2.c. References is_graceful, and restart_pending. Referenced by set_signals().

static void sig_term (  int  sig  )  [static]

Definition at line 373 of file mpmt_os2.c. References shutdown_pending.

static void spawn_child (  int  slot  )  [static]

Definition at line 342 of file mpmt_os2.c. References ap_max_daemons_limit, ap_my_generation, ap_scoreboard_image, APLOG_ERR, APLOG_MARK, APR_FROM_OS_ERROR, process_score::generation, NULL, scoreboard::parent, process_score::pid, and progname. Referenced by master_main().

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Variable Documentation

int ap_daemons_to_start = 0 [static]

Definition at line 78 of file mpmt_os2.c.

int ap_max_daemons_limit = -1

Definition at line 85 of file mpmt_os2.c.

int ap_max_requests_per_child = 0 [static]

Definition at line 80 of file mpmt_os2.c. Referenced by AP_DECLARE(), ap_mpm_child_main(), check_infinite_requests(), child_main(), leader_pre_config(), mpmt_os2_pre_config(), netware_pre_config(), perchild_pre_config(), prefork_pre_config(), worker_main(), worker_pre_config(), and worker_thread().

int ap_max_spare_threads = 0

Definition at line 82 of file mpmt_os2.c. Referenced by mpmt_os2_pre_config(), server_maintenance(), and set_max_spare_threads().

int ap_min_spare_threads = 0

Definition at line 81 of file mpmt_os2.c. Referenced by ap_mpm_child_main(), mpmt_os2_pre_config(), server_maintenance(), and set_min_spare_threads().

HMTX ap_mpm_accept_mutex = 0

Definition at line 93 of file mpmt_os2.c. Referenced by ap_mpm_child_main(), ap_mpm_run(), and master_main().

ap_generation_t volatile ap_my_generation = 0

Definition at line 91 of file mpmt_os2.c.

const char* ap_pid_fname = NULL [static]

Definition at line 74 of file mpmt_os2.c. Referenced by ap_mpm_run(), beos_pre_config(), leader_pre_config(), mpmt_os2_pre_config(), perchild_open_logs(), perchild_pre_config(), prefork_pre_config(), and worker_pre_config().

server_rec* ap_server_conf

Definition at line 72 of file mpmt_os2.c.

int ap_thread_limit = 0 [static]

Definition at line 79 of file mpmt_os2.c.

int volatile is_graceful = 0 [static]

Definition at line 90 of file mpmt_os2.c.

int is_parent_process = TRUE [static]

Definition at line 92 of file mpmt_os2.c. Referenced by ap_mpm_run().

module AP_MODULE_DECLARE_DATA mpm_mpmt_os2_module

Initial value: { MPM20_MODULE_STUFF, NULL, NULL, NULL, NULL, NULL, mpmt_os2_cmds, mpmt_os2_hooks, } Definition at line 568 of file mpmt_os2.c.

const command_rec mpmt_os2_cmds[] [static]

Initial value: { LISTEN_COMMANDS, AP_INIT_TAKE1( "StartServers", set_daemons_to_start, NULL, RSRC_CONF, "Number of child processes launched 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("User", ignore_cmd, NULL, RSRC_CONF, "Not applicable on this platform"), AP_INIT_TAKE1("Group", ignore_cmd, NULL, RSRC_CONF, "Not applicable on this platform"), AP_INIT_TAKE1("ScoreBoardFile", ignore_cmd, NULL, RSRC_CONF, \ "Not applicable on this platform"), { NULL } } Definition at line 551 of file mpmt_os2.c.

int one_process = 0 [static]

Definition at line 77 of file mpmt_os2.c.

apr_pool_t* pconf = NULL [static]

Definition at line 73 of file mpmt_os2.c.

int volatile restart_pending [static]

Definition at line 89 of file mpmt_os2.c.

int volatile shutdown_pending [static]

Definition at line 88 of file mpmt_os2.c.

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