modperl::global.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::ModPerl::Global 3"
.TH mod_perl-2.0.2::docs::api::ModPerl::Global 3 "2005-10-21" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.if n .ad l
.nh
.SH "NAME"
ModPerl::Global \-\- Perl API for manipulating special Perl lists
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 2
\&  use ModPerl::Global ();
\&  my $package = \*(AqMyApache2::Package\*(Aq;
\&  
\&  # make the END blocks of this package special
\&  ModPerl::Global::special_list_register(END => $package);
\&  
\&  # Execute all encoutered END blocks from this package now
\&  ModPerl::Global::special_list_call(    END => $package);
\&  
\&  # delete the list of END blocks
\&  ModPerl::Global::special_list_clear(   END => $package);
.Ve
.SH "Description"
.IX Header "Description"
\&\f(CW\*(C`ModPerl::Global\*(C'\fR provides an \s-1API\s0 to manipulate special perl
lists. At the moment only the \f(CW\*(C`END\*(C'\fR blocks list is supported.
.PP
This \s-1API\s0 allows you to change the normal Perl behavior, and execute
special lists when you need to.
.PP
For example
\&\f(CW\*(C`ModPerl::RegistryCooker\*(C'\fR
uses it to run \f(CW\*(C`END\*(C'\fR blocks in the scripts at the end of each
request.
.PP
Before loading a module containing package \f(CW$package\fR, you need to
register it, so the special blocks will be intercepted by mod_perl and
not given to
Perl. \f(CW\*(C`special_list_register\*(C'\fR does
that. Later on when you want to execute the special blocks,
\&\f(CW\*(C`special_list_call\*(C'\fR should be called. Unless
you want to call the list more than once, clear the list with
\&\f(CW\*(C`special_list_clear\*(C'\fR.
.SH "API"
.IX Header "API"
\&\f(CW\*(C`ModPerl::Global\*(C'\fR provides the following methods:
.ie n .Sh """special_list_call"""
.el .Sh "\f(CWspecial_list_call\fP"
.IX Subsection "special_list_call"
Call the special list
.PP
.Vb 1
\&  $ok = special_list_call($key => $package);
.Ve
.ie n .IP "arg1: $key ( string )" 4
.el .IP "arg1: \f(CW$key\fR ( string )" 4
.IX Item "arg1: $key ( string )"
The name of the special list. At the moment only \f(CW\*(AqEND\*(Aq\fR is
supported.
.ie n .IP "arg2: $package ( string )" 4
.el .IP "arg2: \f(CW$package\fR ( string )" 4
.IX Item "arg2: $package ( string )"
what package to special list is for
.ie n .IP "ret: $ok ( boolean )" 4
.el .IP "ret: \f(CW$ok\fR ( boolean )" 4
.IX Item "ret: $ok ( boolean )"
true value if \f(CW$key\fR is known, false otherwise.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """special_list_clear"""
.el .Sh "\f(CWspecial_list_clear\fP"
.IX Subsection "special_list_clear"
Clear the special list
.PP
.Vb 1
\&  $ok = special_list_clear($key => $package);
.Ve
.ie n .IP "arg1: $key ( string )" 4
.el .IP "arg1: \f(CW$key\fR ( string )" 4
.IX Item "arg1: $key ( string )"
The name of the special list. At the moment only \f(CW\*(AqEND\*(Aq\fR is
supported.
.ie n .IP "arg2: $package ( string )" 4
.el .IP "arg2: \f(CW$package\fR ( string )" 4
.IX Item "arg2: $package ( string )"
what package to special list is for
.ie n .IP "ret: $ok ( boolean )" 4
.el .IP "ret: \f(CW$ok\fR ( boolean )" 4
.IX Item "ret: $ok ( boolean )"
true value if \f(CW$key\fR is known, false otherwise.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """special_list_register"""
.el .Sh "\f(CWspecial_list_register\fP"
.IX Subsection "special_list_register"
Register the special list
.PP
.Vb 1
\&  $ok = special_list_call($key => $package);
.Ve
.ie n .IP "arg1: $key ( string )" 4
.el .IP "arg1: \f(CW$key\fR ( string )" 4
.IX Item "arg1: $key ( string )"
The name of the special list. At the moment only \f(CW\*(AqEND\*(Aq\fR is
supported.
.ie n .IP "arg2: $package ( string )" 4
.el .IP "arg2: \f(CW$package\fR ( string )" 4
.IX Item "arg2: $package ( string )"
what package to special list is for
.ie n .IP "ret: $ok ( boolean )" 4
.el .IP "ret: \f(CW$ok\fR ( boolean )" 4
.IX Item "ret: $ok ( boolean )"
true value if \f(CW$key\fR is known, false otherwise.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
Notice that you need to register the package before it is loaded. If
you register it after, Perl has already compiled the \f(CW\*(C`END\*(C'\fR blocks and
there are no longer under your control.
.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.