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Subject: RE: Developing C++ modules with apache 1.3.34
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Date: Thu, 12 Oct 2006 09:40:19 -0400
Message-ID: <85A664F2F3F2D1409EE003C7D3D52EE43C3D0D@xcgoh901.northgrum.com>
In-Reply-To: <b4dbee910610112348y4b812f94k325316e2d452a685@mail.gmail.com>
Thread-Topic: Developing C++ modules with apache 1.3.34
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From: "Kratzer, James \(Xetron\)" <James.Kratzer@ngc.com>
To: <modules-dev@httpd.apache.org>

Hi,

Here is what I'm doing with Apache 2.0.

I use autoconf and libtool to create my makefiles and to build my apache
modules.  I then put all of your C++ functions is a separate source file
having a cpp extension and I wrap the c++ functions with extern "C"
declarations.  I then call the c++ functions from the C module code.
Works great.

James Kratzer =20

-----Original Message-----
From: Manish Chakravarty [mailto:manishchaks@gmail.com]=20
Sent: Thursday, October 12, 2006 2:49 AM
To: modules-dev@httpd.apache.org
Subject: Developing C++ modules with apache 1.3.34

Hi All,

I am a newbie to Apache development. I am trying to develop a module for
apache 1.3.34 in C++. I really need to link with some C++ libs and use
C++  headers for this project.

 1) How do i go about it ? Do i follow the standard Makefile approach as
outlined in the book "Writing Apache Modules with Perl and C" ?

2) The sample skeleton code (mixed C/C++) is given below. Would someone
be kind enough to go through and tell me if my approach is OK?

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3DExample code =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 #include
"apache/httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_log.h"
#include "http_protocol.h"

#undef strtoul
//will the next line work as intended?
extern "C" module MODULE_VAR_EXPORT clickout_module;

static void co_mod_init(server_rec *s, pool *p) {
    //some module initialization stuff
}
static int co_handler(request_rec *r)
{
    const char* hostname;
    r->content_type =3D "text/html";
    ap_send_http_header(r);
    hostname =3D ap_get_remote_host(r->connection, r->per_dir_config,
REMOTE_NAME);
    ap_rputs ("Some text");
    return OK;
}
static handler_rec co_handlers[] =3D
{
    {"some-hander", some_handler},
    {NULL}
};
void co_proc_init(server_rec* s, pool* p) { // some c++ initialization
functions here.
}

extern "C" { // is this extern useful here?
module MODULE_VAR_EXPORT clickout_module =3D {
    STANDARD_MODULE_STUFF,
    co_mod_init,           /** module initializer */
    NULL,                  /** per-directory config creator */
    NULL,                  /** dir config merger */
    NULL,                  /** server config creator */
    NULL,                  /** server config merger */
    NULL,                  /** command table */
    co_handlers,           /** [9] content handlers */
    NULL,                  /** [2] URI-to-filename translation */
    NULL,                  /** [5] check/validate user_id */
    NULL,                  /** [6] check user_id is valid *here* */
    NULL,                  /** [4] check access by host address */
    NULL,                  /** [7] MIME type checker/setter */
    NULL,                  /** [8] fixups */
    NULL,                  /** [10] logger */
    NULL,                  /** [3] header parser */
    co_proc_init,          /** process initialization */
    NULL,                  /** process exit/cleanup */
    NULL                   /** [1] post read_request handling */
};
}

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3DEnd example code =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Thanks in advance.!!

--
Warm Regards,
Manish Chakravarty
----
Consultant Software Developer
PH: +919886702500
http://manishchaks.net
---