apache2::connection.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::Connection 3"
.TH mod_perl-2.0.2::docs::api::Apache2::Connection 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::Connection \- Perl API for Apache connection object
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 1
\&  use Apache2::Connection ();
\&  
\&  # is connection still open?
\&  $status = $c\->aborted;
\&  
\&  # base server
\&  $base_server = $c\->base_server();
\&  
\&  # needed for creating buckets/brigades
\&  $ba = $c\->bucket_alloc();
\&  
\&  # client\*(Aqs socket
\&  $socket = $c\->client_socket;
\&  
\&  # unique connection id
\&  $id = $c\->id();
\&  
\&  # connection filters stack
\&  $input_filters = $c\->input_filters();
\&  $output_filters = $c\->output_filters();
\&  
\&  # keep the connection alive?
\&  $status = $c\->keepalive();
\&  
\&  # how many requests served over the current connection
\&  $served = $c\->keepalives();
\&  
\&  # this connection\*(Aqs local and remote socket addresses
\&  $local_sa  = $c\->local_addr();
\&  $remote_sa = $c\->remote_addr();
\&  
\&  # local and remote hostnames
\&  $local_host = $c\->local_host();
\&  $remote_host = $c\->get_remote_host();
\&  $remote_host = $c\->remote_host();
\&  
\&  # server and remote client\*(Aqs IP addresses
\&  $local_ip = $c\->local_ip();
\&  $remote_ip = $c\->remote_ip();
\&  
\&  # connection level Apache notes
\&  $notes = $c\->notes();
\&  
\&  # this connection\*(Aqs pool
\&  $p = $c\->pool();
.Ve
.SH "Description"
.IX Header "Description"
\&\f(CW\*(C`Apache2::RequestRec\*(C'\fR provides the Perl \s-1API\s0 for Apache connection
record object.
.SH "API"
.IX Header "API"
\&\f(CW\*(C`Apache2::Connection\*(C'\fR provides the following functions and/or methods:
.ie n .Sh """aborted"""
.el .Sh "\f(CWaborted\fP"
.IX Subsection "aborted"
Check whether the connection is still open
.PP
.Vb 1
\&  $status = $c\->aborted();
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
.PD 0
.ie n .IP "ret: $status ( boolean )" 4
.el .IP "ret: \f(CW$status\fR ( boolean )" 4
.IX Item "ret: $status ( boolean )"
.PD
true if the connection has been aborted, false if still open
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """base_server"""
.el .Sh "\f(CWbase_server\fP"
.IX Subsection "base_server"
Physical server this connection came in on (main server or vhost):
.PP
.Vb 1
\&  $base_server = $c\->base_server();
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
.PD 0
.ie n .IP "ret: $base_server\fR ( \f(CW""Apache2::Server object"" )" 4
.el .IP "ret: \f(CW$base_server\fR ( \f(CWApache2::Server object\fR )" 4
.IX Item "ret: $base_server ( Apache2::Server object )"
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.ie n .Sh """bucket_alloc"""
.el .Sh "\f(CWbucket_alloc\fP"
.IX Subsection "bucket_alloc"
The bucket allocator to use for all bucket/brigade creations
.PP
.Vb 1
\&  $ba = $c\->bucket_alloc();
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
.PD 0
.ie n .IP "ret: $ba\fR ( \f(CW""APR::BucketAlloc object"" )" 4
.el .IP "ret: \f(CW$ba\fR ( \f(CWAPR::BucketAlloc object\fR )" 4
.IX Item "ret: $ba ( APR::BucketAlloc object )"
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.PP
This object is needed by \f(CW\*(C`APR::Bucket\*(C'\fR
and \f(CW\*(C`APR::Brigade\*(C'\fR methods/functions.
.ie n .Sh """client_socket"""
.el .Sh "\f(CWclient_socket\fP"
.IX Subsection "client_socket"
Get/set the client socket
.PP
.Vb 2
\&  $socket      = $c\->client_socket;
\&  $prev_socket = $c\->client_socket($new_socket);
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
.PD 0
.ie n .IP "opt arg1: $new_socket\fR ( \f(CW""APR::Socket object"" object )" 4
.el .IP "opt arg1: \f(CW$new_socket\fR ( \f(CWAPR::Socket object\fR object )" 4
.IX Item "opt arg1: $new_socket ( APR::Socket object object )"
.PD
If passed a new socket will be set.
.ie n .IP "ret: $socket\fR ( \f(CW""APR::Socket object"" object )" 4
.el .IP "ret: \f(CW$socket\fR ( \f(CWAPR::Socket object\fR object )" 4
.IX Item "ret: $socket ( APR::Socket object object )"
current client socket
.Sp
if the optional argument \f(CW$new_socket\fR was passed the previous socket
object is returned.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.ie n .Sh """get_remote_host"""
.el .Sh "\f(CWget_remote_host\fP"
.IX Subsection "get_remote_host"
Lookup the client's \s-1DNS\s0 hostname or \s-1IP\s0 address
.PP
.Vb 3
\&  $remote_host = $c\->remote_host();
\&  $remote_host = $c\->remote_host($type);
\&  $remote_host = $c\->remote_host($type, $dir_config);
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
The current connection
.ie n .IP "opt arg1: $type\fR ( \f(CW"":remotehost constant"" )" 4
.el .IP "opt arg1: \f(CW$type\fR ( \f(CW:remotehost constant\fR )" 4
.IX Item "opt arg1: $type ( :remotehost constant )"
The type of lookup to perform:
.RS 4
.ie n .IP """Apache2::Const::REMOTE_DOUBLE_REV""" 4
.el .IP "\f(CWApache2::Const::REMOTE_DOUBLE_REV\fR" 4
.IX Item "Apache2::Const::REMOTE_DOUBLE_REV"
will always force a \s-1DNS\s0 lookup, and also force a double reverse
lookup, regardless of the \f(CW\*(C`HostnameLookups\*(C'\fR setting.  The result is
the (double reverse checked) hostname, or undef if any of the lookups
fail.
.ie n .IP """Apache2::Const::REMOTE_HOST""" 4
.el .IP "\f(CWApache2::Const::REMOTE_HOST\fR" 4
.IX Item "Apache2::Const::REMOTE_HOST"
returns the hostname, or \f(CW\*(C`undef\*(C'\fR if the hostname lookup fails.  It
will force a \s-1DNS\s0 lookup according to the \f(CW\*(C`HostnameLookups\*(C'\fR setting.
.ie n .IP """Apache2::Const::REMOTE_NAME""" 4
.el .IP "\f(CWApache2::Const::REMOTE_NAME\fR" 4
.IX Item "Apache2::Const::REMOTE_NAME"
returns the hostname, or the dotted quad if the hostname lookup fails.
It will force a \s-1DNS\s0 lookup according to the \f(CW\*(C`HostnameLookups\*(C'\fR
setting.
.ie n .IP """Apache2::Const::REMOTE_NOLOOKUP""" 4
.el .IP "\f(CWApache2::Const::REMOTE_NOLOOKUP\fR" 4
.IX Item "Apache2::Const::REMOTE_NOLOOKUP"
is like \f(CW\*(C`Apache2::Const::REMOTE_NAME\*(C'\fR except that a \s-1DNS\s0 lookup is never
forced.
.RE
.RS 4
.Sp
Default value is \f(CW\*(C`Apache2::Const::REMOTE_NAME\*(C'\fR.
.RE
.ie n .IP "opt arg2: $dir_config\fR ( \f(CW""Apache2::ConfVector object"" )" 4
.el .IP "opt arg2: \f(CW$dir_config\fR ( \f(CWApache2::ConfVector object\fR )" 4
.IX Item "opt arg2: $dir_config ( Apache2::ConfVector object )"
The directory config vector from the request. It's needed to find the
container in which the directive \f(CW\*(C`HostnameLookups\*(C'\fR is set. To get one
for the current request use
\&\f(CW\*(C`$r\->per_dir_config\*(C'\fR.
.Sp
By default, \f(CW\*(C`undef\*(C'\fR is passed, in which case it's the same as if
\&\f(CW\*(C`HostnameLookups\*(C'\fR was set to \f(CW\*(C`Off\*(C'\fR.
.ie n .IP "ret: $remote_host ( string/undef )" 4
.el .IP "ret: \f(CW$remote_host\fR ( string/undef )" 4
.IX Item "ret: $remote_host ( string/undef )"
The remote hostname.  If the configuration directive
\&\fBHostNameLookups\fR is set to off, this returns the dotted decimal
representation of the client's \s-1IP\s0 address instead. Might return
\&\f(CW\*(C`undef\*(C'\fR if the hostname is not known.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
The result of \f(CW\*(C`get_remote_host\*(C'\fR call is cached in
\&\f(CW\*(C`$c\->remote_host\*(C'\fR. If the latter is set,
\&\f(CW\*(C`get_remote_host\*(C'\fR will return that value immediately, w/o doing any
checkups.
.ie n .Sh """id"""
.el .Sh "\f(CWid\fP"
.IX Subsection "id"
\&\s-1ID\s0 of this connection; unique at any point in time
.PP
.Vb 1
\&  $id = $c\->id();
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
.PD 0
.ie n .IP "ret: $id (integer)" 4
.el .IP "ret: \f(CW$id\fR (integer)" 4
.IX Item "ret: $id (integer)"
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.ie n .Sh """input_filters"""
.el .Sh "\f(CWinput_filters\fP"
.IX Subsection "input_filters"
Get/set the first filter in a linked list of protocol level input
filters:
.PP
.Vb 2
\&  $input_filters      = $c\->input_filters();
\&  $prev_input_filters = $c\->input_filters($new_input_filters);
.Ve
.ie n .IP "obj: $c\fR ( \f(CW""Apache2::Connection object"" )" 4
.el .IP "obj: \f(CW$c\fR ( \f(CWApache2::Connection object\fR )" 4
.IX Item "obj: $c ( Apache2::Connection object )"
.PD 0
.ie n .IP "opt arg1: $new_input_filters" 4
.el .IP "opt arg1: \f(CW$new_input_filters\fR" 4
.IX Item "opt arg1: $new_input_filters"