apache2::command.3

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

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.\" ========================================================================
.\"
.IX Title "mod_perl-2.0.2::docs::api::Apache2::Command 3"
.TH mod_perl-2.0.2::docs::api::Apache2::Command 3 "2005-10-21" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Apache2::Command \- Perl API for accessing Apache module command information
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 3
\&  use Apache2::Module ();
\&  use Apache2::Command ();
\&  my $module = Apache2::Module::find_linked_module(\*(Aqmod_perl.c\*(Aq);
\&  
\&  for (my $cmd = $module\->cmds; $cmd; $cmd = $cmd\->next) {
\&      $cmd\->args_how();
\&      $cmd\->errmsg();
\&      $cmd\->name();
\&      $cmd\->req_override();
\&  }
.Ve
.SH "Description"
.IX Header "Description"
\&\f(CW\*(C`Apache2::Command\*(C'\fR provides the Perl \s-1API\s0 for accessing Apache module
command information
.SH "API"
.IX Header "API"
\&\f(CW\*(C`Apache2::Command\*(C'\fR provides the following functions and/or methods:
.ie n .Sh """args_how"""
.el .Sh "\f(CWargs_how\fP"
.IX Subsection "args_how"
What the command expects as arguments:
.PP
.Vb 1
\&  $how = $cmd\->args_how();
.Ve
.ie n .IP "obj: $cmd\fR ( \f(CW""Apache2::Command object"" )" 4
.el .IP "obj: \f(CW$cmd\fR ( \f(CWApache2::Command object\fR )" 4
.IX Item "obj: $cmd ( Apache2::Command object )"
.PD 0
.ie n .IP "ret: $how\fR ( \f(CW""Apache2::Const :cmd_how constant"" )" 4
.el .IP "ret: \f(CW$how\fR ( \f(CWApache2::Const :cmd_how constant\fR )" 4
.IX Item "ret: $how ( Apache2::Const :cmd_how constant )"
.PD
The flag value representing the type of this command
(i.e. \f(CW\*(C`Apache2::Const::ITERATE\*(C'\fR, \f(CW\*(C`Apache2::Const::TAKE2\*(C'\fR).
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """errmsg"""
.el .Sh "\f(CWerrmsg\fP"
.IX Subsection "errmsg"
Get \fIusage\fR message for that command, in case of syntax errors:
.PP
.Vb 1
\&  $error = $cmd\->errmsg();
.Ve
.ie n .IP "obj: $cmd\fR ( \f(CW""Apache2::Command object"" )" 4
.el .IP "obj: \f(CW$cmd\fR ( \f(CWApache2::Command object\fR )" 4
.IX Item "obj: $cmd ( Apache2::Command object )"
.PD 0
.ie n .IP "ret: $error ( string )" 4
.el .IP "ret: \f(CW$error\fR ( string )" 4
.IX Item "ret: $error ( string )"
.PD
The error message
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """name"""
.el .Sh "\f(CWname\fP"
.IX Subsection "name"
Get the name of this command:
.PP
.Vb 1
\&  $name = $cmd\->name();
.Ve
.ie n .IP "obj: $cmd\fR ( \f(CW""Apache2::Command object"" )" 4
.el .IP "obj: \f(CW$cmd\fR ( \f(CWApache2::Command object\fR )" 4
.IX Item "obj: $cmd ( Apache2::Command object )"
.PD 0
.ie n .IP "ret: $name ( string )" 4
.el .IP "ret: \f(CW$name\fR ( string )" 4
.IX Item "ret: $name ( string )"
.PD
The command name
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """next"""
.el .Sh "\f(CWnext\fP"
.IX Subsection "next"
Get the next command in the chain of commands for this module:
.PP
.Vb 1
\&  $next = $cmd\->next();
.Ve
.ie n .IP "obj: $cmd\fR ( \f(CW""Apache2::Command object"" )" 4
.el .IP "obj: \f(CW$cmd\fR ( \f(CWApache2::Command object\fR )" 4
.IX Item "obj: $cmd ( Apache2::Command object )"
.PD 0
.ie n .IP "ret: $next\fR ( \f(CW""Apache2::Command object"" )" 4
.el .IP "ret: \f(CW$next\fR ( \f(CWApache2::Command object\fR )" 4
.IX Item "ret: $next ( Apache2::Command object )"
.PD
Returns the next command in the chain for this module, \f(CW\*(C`undef\*(C'\fR for
the last command.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """req_override"""
.el .Sh "\f(CWreq_override\fP"
.IX Subsection "req_override"
What overrides need to be allowed to enable this command:
.PP
.Vb 1
\&  $override = $cmd\->req_override
.Ve
.ie n .IP "obj: $cmd\fR ( \f(CW""Apache2::Command object"" )" 4
.el .IP "obj: \f(CW$cmd\fR ( \f(CWApache2::Command object\fR )" 4
.IX Item "obj: $cmd ( Apache2::Command object )"
.PD 0
.ie n .IP "ret: $override\fR ( \f(CW""Apache2::Const :override constant"" )" 4
.el .IP "ret: \f(CW$override\fR ( \f(CWApache2::Const :override constant\fR )" 4
.IX Item "ret: $override ( Apache2::Const :override constant )"
.PD
The bit mask representing the overrides this command is allowed in
(i.e \f(CW\*(C`Apache2::Const::OR_ALL\*(C'\fR/\f(CW\*(C`Apache2::Const::ACCESS_CONF\*(C'\fR).
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
For example:
.PP
.Vb 3
\&  use Apache2::Const \-compile => qw(:override);
\&  $cmd\->req_override() & Apache2::Const::OR_AUTHCFG;
\&  $cmd\->req_override() & Apache2::Const::OR_LIMIT;
.Ve
.SH "See Also"
.IX Header "See Also"
mod_perl 2.0 documentation.
.SH "Copyright"
.IX Header "Copyright"
mod_perl 2.0 and its core modules are copyrighted under
The Apache Software License, Version 2.0.
.SH "Authors"
.IX Header "Authors"
The mod_perl development team and numerous
contributors.