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{ Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
}
{
* @package Apache connection library
}
{#include "apr_hooks.h"
#include "apr_network_io.h"
#include "apr_buckets.h"}
{
* @file http_connection.h
* @brief Apache connection library
}
//#ifdef CORE_PRIVATE
{
* This is the protocol module driver. This calls all of the
* pre-connection and connection hooks for all protocol modules.
* @param c The connection on which the request is read
* @param csd The mechanism on which this connection is to be read.
* Most times this will be a socket, but it is up to the module
* that accepts the request to determine the exact type.
* @deffunc void ap_process_connection(conn_rec *c, void *csd)
}
procedure ap_process_connection(c: Pconn_rec; csd: Pointer);
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_process_connection' + LibSuff8;
{
* Flushes all remain data in the client send buffer
* @param c The connection to flush
}
procedure ap_flush_conn(c: Pconn_rec);
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_flush_conn' + LibSuff4;
{
* This function is responsible for the following cases:
* <pre>
* we now proceed to read from the client until we get EOF, or until
* MAX_SECS_TO_LINGER has passed. the reasons for doing this are
* documented in a draft:
*
* http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-connection-00.txt
*
* in a nutshell -- if we don't make this effort we risk causing
* TCP RST packets to be sent which can tear down a connection before
* all the response data has been sent to the client.
* </pre>
* @param c The connection we are closing
}
procedure ap_lingering_close(c: Pconn_rec);
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_lingering_close' + LibSuff4;
//#endif COREPRIVATE
{ Hooks }
{
* create_connection is a RUN_FIRST hook which allows modules to create
* connections. In general, you should not install filters with the
* create_connection hook. If you require vhost configuration information
* to make filter installation decisions, you must use the pre_connection
* or install_network_transport hook. This hook should close the connection
* if it encounters a fatal error condition.
*
* @param p The pool from which to allocate the connection record
* @param csd The socket that has been accepted
* @param conn_id A unique identifier for this connection. The ID only
* needs to be unique at that time, not forever.
* @param sbh A handle to scoreboard information for this connection.
* @return An allocated connection record or NULL.
}
type
ap_HOOK_create_connection_t = function (p: Papr_pool_t; server: Pserver_rec;
csd: Papr_socket_t; conn_id: cLong; sbh: Pointer;
alloc: Papr_bucket_alloc_t): Pconn_rec; cdecl;
procedure ap_hook_create_connection(pf: ap_HOOK_create_connection_t; const aszPre: PPChar;
const aszSucc: PPChar; nOrder: Integer);
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_hook_create_connection' + LibSuff16;
{
* This hook gives protocol modules an opportunity to set everything up
* before calling the protocol handler. All pre-connection hooks are
* run until one returns something other than ok or decline
* @param c The connection on which the request has been received.
* @param csd The mechanism on which this connection is to be read.
* Most times this will be a socket, but it is up to the module
* that accepts the request to determine the exact type.
* @return OK or DECLINED
* @deffunc int ap_run_pre_connection(conn_rec *c, void *csd)
}
type
ap_HOOK_pre_connection_t = function (c: Pconn_rec; csd: Pointer): Integer; cdecl;
procedure ap_hook_pre_connection(pf: ap_HOOK_pre_connection_t; const aszPre: PPChar;
const aszSucc: PPChar; nOrder: Integer);
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_hook_pre_connection' + LibSuff16;
{
* This hook implements different protocols. After a connection has been
* established, the protocol module must read and serve the request. This
* function does that for each protocol module. The first protocol module
* to handle the request is the last module run.
* @param c The connection on which the request has been received.
* @return OK or DECLINED
* @deffunc int ap_run_process_connection(conn_rec *c)
}
type
ap_HOOK_process_connection_t = function (c: Pconn_rec): Integer; cdecl;
procedure ap_hook_process_connection(pf: ap_HOOK_process_connection_t; const aszPre: PPChar;
const aszSucc: PPChar; nOrder: Integer);
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_hook_process_connection' + LibSuff16;
{ End Of Connection (EOC) bucket }
//AP_DECLARE_DATA extern const apr_bucket_type_t ap_bucket_type_eoc;
{
* Determine if a bucket is an End Of Connection (EOC) bucket
* @param e The bucket to inspect
* @return true or false
}
//#define AP_BUCKET_IS_EOC(e) (e->type == &ap_bucket_type_eoc)
{
* Make the bucket passed in an End Of Connection (EOC) bucket
* @param b The bucket to make into an EOC bucket
* @return The new bucket, or NULL if allocation failed
* @deffunc apr_bucket *ap_bucket_eoc_make(apr_bucket *b)
}
function ap_bucket_eoc_make(b: Papr_bucket): Papr_bucket;
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_bucket_eoc_make' + LibSuff4;
{
* Create a bucket referring to an End Of Connection (EOC). This indicates
* that the connection will be closed.
* @param list The freelist from which this bucket should be allocated
* @return The new bucket, or NULL if allocation failed
* @deffunc apr_bucket *ap_bucket_eoc_create(apr_bucket_alloc_t *list)
}
function ap_bucket_eoc_create(list: Papr_bucket_alloc_t): Papr_bucket;
{$IFDEF WINDOWS} stdcall; {$ELSE} cdecl; {$ENDIF}
external LibHTTPD name LibNamePrefix + 'ap_bucket_eoc_create' + LibSuff4;
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