> +        return apr_pstrcat(cmd->pool, arg, " is an invalid mutex mechanism",
> +                           NULL);

Why not return the list of possibly choices?

Bill

----- Original Message -----
From: "Jeff Trawick" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, June 26, 2001 8:00 AM
Subject: [PATCH] AcceptMutex configuration


> This just changes prefork, but same basic change can be made to
> threaded and perchild.
>
> Any suggested improvements to lingo or logic before I commit?
>
> Does anybody want me to do the following to detect missing mechanisms
> when the config file is read?
>
> 1) export APR_HAVE_FCNTL_SERIALIZE, APR_HAVE_FLOCK_SERIALIZE, et al
>    from apr.h
>
> 2) change set_accept_lock_mech() to only allow a particular keyword
>    (e.g., "sysvsem") if the corresponding APR feature (e.g.,
>    APR_HAVE_SYSVSEM_SERIALIZE) is present
>
> (Actually, I vote for this now that I think about it for a second :))
>
> Index: server/mpm/prefork/prefork.c
> ===================================================================
> RCS file: /home/cvspublic/httpd-2.0/server/mpm/prefork/prefork.c,v
> retrieving revision 1.186
> diff -u -r1.186 prefork.c
> --- server/mpm/prefork/prefork.c 2001/06/26 10:59:16 1.186
> +++ server/mpm/prefork/prefork.c 2001/06/26 12:00:50
> @@ -138,6 +138,7 @@
>  static const char *ap_pid_fname=NULL;
>  static apr_lock_t *accept_lock;
>  static const char *ap_lock_fname;
> +static apr_lockmech_e_np accept_lock_mech = APR_LOCK_DEFAULT;
>  static int ap_daemons_to_start=0;
>  static int ap_daemons_min_free=0;
>  static int ap_daemons_max_free=0;
> @@ -274,7 +275,8 @@
>      apr_status_t rv;
>
>      expand_lock_fname(p);
> -    rv = apr_lock_create(&accept_lock, APR_MUTEX, APR_CROSS_PROCESS, ap_lock_fname, 
>p);
> +    rv = apr_lock_create_np(&accept_lock, APR_MUTEX, APR_CROSS_PROCESS,
> +                            accept_lock_mech, ap_lock_fname, p);
>      if (rv) {
>   ap_log_error(APLOG_MARK, APLOG_EMERG, rv, NULL, "couldn't create accept mutex");
>          exit(APEXIT_INIT);
> @@ -1469,6 +1471,35 @@
>      return NULL;
>  }
>
> +static const char *set_accept_lock_mech(cmd_parms *cmd, void *dummy, const char 
>*arg)
> +{
> +    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
> +    if (err != NULL) {
> +        return err;
> +    }
> +
> +    if (!strcasecmp(arg, "default")) {
> +        accept_lock_mech = APR_LOCK_DEFAULT;
> +    }
> +    else if (!strcasecmp(arg, "flock")) {
> +        accept_lock_mech = APR_LOCK_FLOCK;
> +    }
> +    else if (!strcasecmp(arg, "fcntl")) {
> +        accept_lock_mech = APR_LOCK_FCNTL;
> +    }
> +    else if (!strcasecmp(arg, "sysvsem")) {
> +        accept_lock_mech = APR_LOCK_SYSVSEM;
> +    }
> +    else if (!strcasecmp(arg, "proc_pthread")) {
> +        accept_lock_mech = APR_LOCK_PROC_PTHREAD;
> +    }
> +    else {
> +        return apr_pstrcat(cmd->pool, arg, " is an invalid mutex mechanism",
> +                           NULL);
> +    }
> +    return NULL;
> +}
> +
>  static const command_rec prefork_cmds[] = {
>  UNIX_DAEMON_COMMANDS
>  LISTEN_COMMANDS
> @@ -1490,6 +1521,8 @@
>                "Maximum number of requests a particular child serves before dying."),
>  AP_INIT_TAKE1("CoreDumpDirectory", set_coredumpdir, NULL, RSRC_CONF,
>                "The location of the directory Apache changes to before dumping 
>core"),
> +AP_INIT_TAKE1("AcceptMutex", set_accept_lock_mech, NULL, RSRC_CONF,
> +              "The system mutex implementation to use for the accept mutex"),
>  { NULL }
>  };
>
>
> --
> Jeff Trawick | [EMAIL PROTECTED] | PGP public key at web site:
>        http://www.geocities.com/SiliconValley/Park/9289/
>              Born in Roswell... married an alien...
>

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