os-unixware/7219: the init process for dynimacal shared module sometimes runs twice.

[Ying Li <yi...@hp.com>]

>Number:         7219
>Category:       os-unixware
>Synopsis:       the init process for dynimacal shared module sometimes runs twice.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Thu Feb 08 12:10:04 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     ying_li2@hp.com
>Release:        Apache_1.3.12
>Organization:
apache
>Environment:
HP_UX 11.0 workstation
Apache_1.3.12

 
>Description:
When I developed the module foo_initialization for the mod_foo as a dso, I found it always is executed twice. One is in http_main, another is in standalone_main.
And apache is work well. It seems no problem.
But you may take look at the log file and find out the results from initialization process is not what I want to get.
>How-To-Repeat:
1)mod_foo.c source code
/* ====================================================================
 * Apache_1.3.12
 * test the initialization of mod_foo module
 */

#include "httpd.h"
#include "http_config.h"
#include "http_conf_globals.h"
#include <stdio.h>

module MODULE_VAR_EXPORT foo_module;
static const char* LOGLOG="/tmp/log";

static void FooInit(server_rec *s, pool *p)
{
    pid_t pid;
    FILE *flog;
    
    flog=fopen(LOGLOG,"a"); 
    fprintf(flog,"%s\n","START INIT PROCESS!!!");

    pid = getpgrp();
    fprintf(flog,"PID=%d\n",pid);
 
    ap_add_version_component("mod_foo loaded!!!");
    fprintf(flog,"%s\n"," End of initialization fo mod_foo module!");
    fclose(flog);
}

static int FooTranslate(request_rec *r)
{
     return DECLINED;    
}

module MODULE_VAR_EXPORT foo_module = 
{
    STANDARD_MODULE_STUFF,
    FooInit,                   /* initializer */
    NULL,                      /* per-directory config creater */
    NULL,                      /* dir config merger - default is to override */
    NULL,                      /* server config creator */
    NULL,                      /* server config merger */
    NULL,                      /* command table */
    NULL,                      /* [6] list of handlers */
    FooTranslate,              /* [1] filename-to-URI translation */
    NULL,                      /* [4] check/validate HTTP user_id */
    NULL,                      /* [5] check HTTP user_id is valid *here* */
    NULL,                      /* [3] check access by host address, etc. */
    NULL,                      /* [6] MIME type checker/setter */
    NULL,                      /* [7] fixups */
    NULL,                      /* [9] logger */
    NULL,                      /* [2] header parser */
};

2)./apxs -i -a -c mod_foo.c

3)log file:
START INIT PROCESS!!!
PID=23987
 End of initialization fo mod_foo module!
START INIT PROCESS!!!
PID=23994
 End of initialization fo mod_foo module!
>Fix:
I don't know why and what happened. I only hope the initialization routine of any modules as a DSO should really be executed only once, not more than one time. Any suggesstion will be appreciated. Thanks a lot.
>Release-Note:
>Audit-Trail:
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