cppcms-users — Disussions of users of CppCMS

Re: [Cppcms-users] some graceful way to close the CppCMS app

[Artyom B. <art...@ya...>]

Like any other process:


Do stuff like this:

int main(...)
{

   try {
      cppcms::service srv(...)
      srv.run();
   }
   catch(std::exception const &) {
     //Some problem
     return 1;

   }
   return 0; // exited normally

}

 
srv.run() returns upon srv.shutdown() (that is called by SIGTERM handler)


Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/



>________________________________
> From: Lee Elenbaas <lee...@gm...>
>To: Artyom Beilis <art...@ya...>; cpp...@li... 
>Sent: Monday, July 2, 2012 10:53 AM
>Subject: Re: [Cppcms-users] some graceful way to close the CppCMS app
> 
>
>Is there some way to return an error code to the program that run the cppcms app?
>i would like to provide some conditioned loop in my batch/shell script
>
>
>thanks
>
>
>On Mon, Jul 2, 2012 at 10:34 AM, Artyom Beilis <art...@ya...> wrote:
>
>Two options:
>>
>>
>>1. Send a SIGTERM signal to the application service it will shutdown gracefully.
>>2. >From the application itself, use cppcms::service::shutdown()
>>
>>
>>The open requests that started processing .i.e. it is processed in the thread_pool
>>would be completed. The connections that had not got to thread pool (not started processing) 
>>
>>and asynchronous connections will be closed.
>> 
>>Artyom Beilis
>>--------------
>>CppCMS - C++ Web Framework:   http://cppcms.com/
>>CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/
>>
>>
>>
>>>________________________________
>>> From: Lee Elenbaas <lee...@gm...>
>>>To: cpp...@li... 
>>>Sent: Monday, July 2, 2012 10:17 AM
>>>Subject: [Cppcms-users] some graceful way to close the CppCMS app
>>> 
>>>
>>>
>>>Hi All,
>>>
>>>
>>>Is there some gracefull way to close the CppCMS so that it will stop accepting new requests, finish handle the currently open requests and then close down with a given error code.
>>>In my situation i sometimes need to close the app change the configuration and then run it again. And i am looking for a gracefull way to perform that. 
>>>(Yes i know that the embeded web server is not for production - but for my case i think it is the best option right now. I would have to bundle a webserver with my app anyway, so using this and configuring it to answer only localhost seems like a good enough option for now)
>>>
>>>-- 
>>>--
>>>lee
>>>Lee Elenbaas
>>>lee...@gm...
>>>
>>>
>>>------------------------------------------------------------------------------
>>>Live Security Virtual Conference
>>>Exclusive live event will cover all the ways today's security and 
>>>threat landscape has changed and how IT managers can respond. Discussions 
>>>will include endpoint security, mobile security and the latest in malware 
>>>threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>>>_______________________________________________
>>>Cppcms-users mailing list
>>>Cpp...@li...
>>>https://lists.sourceforge.net/lists/listinfo/cppcms-users
>>>
>>>
>>>
>>------------------------------------------------------------------------------
>>Live Security Virtual Conference
>>Exclusive live event will cover all the ways today's security and
>>threat landscape has changed and how IT managers can respond. Discussions
>>will include endpoint security, mobile security and the latest in malware
>>threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>>_______________________________________________
>>Cppcms-users mailing list
>>Cpp...@li...
>>https://lists.sourceforge.net/lists/listinfo/cppcms-users
>>
>>
>
>
>
>-- 
>--
>lee
>Lee Elenbaas
>lee...@gm...
>
>
>------------------------------------------------------------------------------
>Live Security Virtual Conference
>Exclusive live event will cover all the ways today's security and 
>threat landscape has changed and how IT managers can respond. Discussions 
>will include endpoint security, mobile security and the latest in malware 
>threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>_______________________________________________
>Cppcms-users mailing list
>Cpp...@li...
>https://lists.sourceforge.net/lists/listinfo/cppcms-users
>
>
>

Re: [Cppcms-users] some graceful way to close the CppCMS app

[Lee E. <lee...@gm...>]

Is there some way to return an error code to the program that run the
cppcms app?
i would like to provide some conditioned loop in my batch/shell script

thanks

On Mon, Jul 2, 2012 at 10:34 AM, Artyom Beilis <art...@ya...> wrote:

> Two options:
>
> 1. Send a SIGTERM signal to the application service it will shutdown
> gracefully.
> 2. >From the application itself, use cppcms::service::shutdown()
>
> The open requests that started processing .i.e. it is processed in the
> thread_pool
> would be completed. The connections that had not got to thread pool (not
> started processing)
> and asynchronous connections will be closed.
>
> Artyom Beilis
> --------------
> CppCMS - C++ Web Framework:   http://cppcms.com/
> CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/
>
>   ------------------------------
> *From:* Lee Elenbaas <lee...@gm...>
> *To:* cpp...@li...
> *Sent:* Monday, July 2, 2012 10:17 AM
> *Subject:* [Cppcms-users] some graceful way to close the CppCMS app
>
> Hi All,
>
> Is there some gracefull way to close the CppCMS so that it will stop
> accepting new requests, finish handle the currently open requests and then
> close down with a given error code.
> In my situation i sometimes need to close the app change the configuration
> and then run it again. And i am looking for a gracefull way to perform
> that.
> (Yes i know that the embeded web server is not for production - but for my
> case i think it is the best option right now. I would have to bundle a
> webserver with my app anyway, so using this and configuring it to answer
> only localhost seems like a good enough option for now)
>
> --
> --
> lee
> Lee Elenbaas
> lee...@gm...
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
>
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
>
>


-- 
--
lee
Lee Elenbaas
lee...@gm...

Re: [Cppcms-users] Apache utf8 headers

[Artyom B. <art...@ya...>]

>Do you think it's worthwhile creating a wiki page to collate all utf8/encoding 
>FAQs? There was already a question on this list about cppdb and utf8.
>I can create one if you wish.
>
>Augustin.
>

Not bad idea at all


Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/

Re: [Cppcms-users] some graceful way to close the CppCMS app

[Artyom B. <art...@ya...>]

Two options:

1. Send a SIGTERM signal to the application service it will shutdown gracefully.
2. From the application itself, use cppcms::service::shutdown()

The open requests that started processing .i.e. it is processed in the thread_pool
would be completed. The connections that had not got to thread pool (not started processing) 

and asynchronous connections will be closed.

 
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/



>________________________________
> From: Lee Elenbaas <lee...@gm...>
>To: cpp...@li... 
>Sent: Monday, July 2, 2012 10:17 AM
>Subject: [Cppcms-users] some graceful way to close the CppCMS app
> 
>
>Hi All,
>
>
>Is there some gracefull way to close the CppCMS so that it will stop accepting new requests, finish handle the currently open requests and then close down with a given error code.
>In my situation i sometimes need to close the app change the configuration and then run it again. And i am looking for a gracefull way to perform that. 
>(Yes i know that the embeded web server is not for production - but for my case i think it is the best option right now. I would have to bundle a webserver with my app anyway, so using this and configuring it to answer only localhost seems like a good enough option for now)
>
>-- 
>--
>lee
>Lee Elenbaas
>lee...@gm...
>
>
>------------------------------------------------------------------------------
>Live Security Virtual Conference
>Exclusive live event will cover all the ways today's security and 
>threat landscape has changed and how IT managers can respond. Discussions 
>will include endpoint security, mobile security and the latest in malware 
>threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>_______________________________________________
>Cppcms-users mailing list
>Cpp...@li...
>https://lists.sourceforge.net/lists/listinfo/cppcms-users
>
>
>

[Cppcms-users] some graceful way to close the CppCMS app

[Lee E. <lee...@gm...>]

Hi All,

Is there some gracefull way to close the CppCMS so that it will stop
accepting new requests, finish handle the currently open requests and then
close down with a given error code.
In my situation i sometimes need to close the app change the configuration
and then run it again. And i am looking for a gracefull way to perform
that.
(Yes i know that the embeded web server is not for production - but for my
case i think it is the best option right now. I would have to bundle a
webserver with my app anyway, so using this and configuring it to answer
only localhost seems like a good enough option for now)

-- 
--
lee
Lee Elenbaas
lee...@gm...

Re: [Cppcms-users] Apache utf8 headers

[augustin <aug...@ov...>]

On Monday, July 02, 2012 02:30:38 PM Artyom Beilis wrote:
> The encoding option is not in use for a LOOOONG time

:)
Sorry!

> 
> http://cppcms.com/wikipp/en/page/cppcms_1x_config#localization
> 
> The correct solution is to define the locale for the cppcms service 
> 
>   "localization" {
>         "locales" : [ "en_US.UTF-8" ]
>   }

Thanks. I'll try that.

Do you think it's worthwhile creating a wiki page to collate all utf8/encoding 
FAQs? There was already a question on this list about cppdb and utf8.
I can create one if you wish.

Augustin.

  

-- 
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My projects:
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.

Re: [Cppcms-users] Apache utf8 headers

[Artyom B. <art...@ya...>]

The encoding option is not in use for a LOOOONG time

http://cppcms.com/wikipp/en/page/cppcms_1x_config#localization

CppCMS automatically sets the Content-Type charset according to the process locale,
if apache starts the web server using C locale than by default you'll get us-ascii charset.

The correct solution is to define the locale for the cppcms service 

  "localization" {

        "locales" : [ "en_US.UTF-8" ]
  }

 
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/



>________________________________
> From: augustin <aug...@ov...>
>To: cpp...@li... 
>Sent: Monday, July 2, 2012 9:15 AM
>Subject: Re: [Cppcms-users] Apache utf8 headers
> 
>On Monday, July 02, 2012 02:06:45 PM augustin wrote:
>> Maybe I should use this:
>> http://cppcms.com/cppcms_ref/latest/classcppcms_1_1http_1_1response.html
>> but I am confused by the discrepancy between the two sites, given that
>> they  have the same code and the same settings.
>> Can this be considered as a small bug in cppcms?
>
>I fixed this by adding the following in my application:
>        response().content_type("text/html; charset=UTF-8");
>but maybe this is not the most appropriate way to handle this, or cppcms could 
>have guessed the proper encoding from config.js.
>
>And if this is the proper solution, hopefully by putting it here, it will help 
>someone else.
>
>
>
>Augustin.
>
>
>
>-- 
>Friends: http://www.reuniting.info/
>My projects:
>http://astralcity.org/ http://lesenjeux.fr/ http://linux.overshoot.tv/ 
>http://overshoot.tv/ http://charityware.info/ http://masquilier.org/
>http://openteacher.info/ http://minguo.info/ http://jacqueslemaire.fr/ 
>http://www.wechange.org/ http://searching911.info/
>
>
>
>
>
>
>
>
>
>
>
>
>.
>
>------------------------------------------------------------------------------
>Live Security Virtual Conference
>Exclusive live event will cover all the ways today's security and 
>threat landscape has changed and how IT managers can respond. Discussions 
>will include endpoint security, mobile security and the latest in malware 
>threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>_______________________________________________
>Cppcms-users mailing list
>Cpp...@li...
>https://lists.sourceforge.net/lists/listinfo/cppcms-users
>
>
>

Re: [Cppcms-users] Apache utf8 headers

[augustin <aug...@ov...>]

On Monday, July 02, 2012 02:06:45 PM augustin wrote:
> Maybe I should use this:
> http://cppcms.com/cppcms_ref/latest/classcppcms_1_1http_1_1response.html
> but I am confused by the discrepancy between the two sites, given that
> they  have the same code and the same settings.
> Can this be considered as a small bug in cppcms?

I fixed this by adding the following in my application:
        response().content_type("text/html; charset=UTF-8");
but maybe this is not the most appropriate way to handle this, or cppcms could 
have guessed the proper encoding from config.js.

And if this is the proper solution, hopefully by putting it here, it will help 
someone else.



Augustin.



-- 
Friends: http://www.reuniting.info/
My projects:
http://astralcity.org/ http://lesenjeux.fr/ http://linux.overshoot.tv/ 
http://overshoot.tv/ http://charityware.info/ http://masquilier.org/
http://openteacher.info/ http://minguo.info/ http://jacqueslemaire.fr/ 
http://www.wechange.org/ http://searching911.info/












.

[Cppcms-users] Apache utf8 headers

[augustin <aug...@ov...>]

Hello,

I have 2 exactly identical web sites (same code, same html output),
but one is set up to be started by the web server, and the other is set up to 
be started manually. See:
http://cppcms.com/wikipp/en/page/cppcms_1x_tut_web_server_config#Apache

In config.js, I have in both cases:

        "localization" : {
                "encoding" : "UTF-8",
        },

The html output contains in both cases:

        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

However, the apache headers are not the same.
In the case of the manually started web site, the headers correctly specify:

Content-Type	text/html; charset=utf-8

while with the site started by the web server, the header specifies:

Content-Type	text/html; charset=us-ascii

and thus I have to manually set my browser to display the web page in utf8 
encoding to properly view the page.


How come the apache Content-Type charset header is not the same?
How to ensure the charset is the correct one?


Also, where is the most appropriate place to rectify this?
Should I set this in .htaccess?
Should it be corrected from within the cppcms application, by declaring the 
proper http header?
Should it be fixed in the apache settings for the web site (/etc/apache2/sites-
available/mysite)?

Maybe I should use this:
http://cppcms.com/cppcms_ref/latest/classcppcms_1_1http_1_1response.html
but I am confused by the discrepancy between the two sites, given that they 
have the same code and the same settings.
Can this be considered as a small bug in cppcms?



Thanks,

Augustin.



-- 
Friends: http://www.reuniting.info/
My projects:
http://astralcity.org/ http://lesenjeux.fr/ http://linux.overshoot.tv/ 
http://overshoot.tv/ http://charityware.info/ http://masquilier.org/
http://openteacher.info/ http://minguo.info/ http://jacqueslemaire.fr/ 
http://www.wechange.org/ http://searching911.info/












.

Re: [Cppcms-users] What did I do wrong? (tutorial #3)

[<ele...@ex...>]

Not to sound pushy, but if you are new to C++, i'd start with this:

http://www.amazon.com/Accelerated-C-Practical-Programming-Example/dp/020170353X/ref=sr_1_1?ie=UTF8&qid=1340710529&sr=8-1&keywords=accelerated+c%2B%2B

C++ is easy to give up on when you're starting and don't have the proper
guidance.

Re: [Cppcms-users] What did I do wrong? (tutorial #3)

[Marcel H. <ke...@co...>]

Am 26.06.2012 02:23, schrieb Brian Lee:
> Hey everyone,
>
> I just installed CppCMS on Windows with a MinGW shell. I'm still 
> pretty new to C++ and am setting up a web server as a learning 
> exercise, but I'm stuck at tutorial 3. I pretty much copy-pasted all 
> the code -- did I go wrong, or is there something wrong with my 
> environment?
>
> I'm getting compile errors using g++ (g++ hello.cpp -lcppcms -o hello):
>
> hello.cpp: In constructor, 'hello::hello(cppcms::service&)':
> hello.cpp:14:43: error 'number' is not a member of 'hello'
> hello.cpp:17:35: error: 'smile' is not a member of 'hello'
> hello.cpp:20:29: error: 'welcome' is not a member of 'hello'
everything you need is said here
> hello.cpp: In function 'void number(std::string)':
> hello.cpp:39:11: error: 'response' was not declared in this scope
> hello.cpp:40:44: error: 'url' was not declared in this scope
and again here
> hello.cpp: In function 'void smile()':
> hello.cpp:44:11: error: 'response' was not declared in this scope
> hello.cpp:45:44: error: 'url' was not declared in this scope
> hello.cpp:49:11: error: 'response' was not declared in this scope
> hello.cpp:51:33: error: 'url' was not declared in this scope
>
and of course here ;)
>
>
> #include <cppcms/application.h>
> #include <cppcms/service.h>
> #include <cppcms/http_response.h>
> #include <cppcms/url_dispatcher.h>
> #include <cppcms/url_mapper.h>
> #include <cppcms/applications_pool.h>
> #include <iostream>
> #include <stdlib.h>
>
> class hello : public cppcms::application {
>     public:
>         hello(cppcms::service &srv)    :
>             cppcms::application(srv) {
> dispatcher().assign("/number/(\\d+)",&hello::number,this,1);
>                 mapper().assign("number","/number/{1}");
>
> dispatcher().assign("/smile",&hello::smile,this);
you want a reference to the method smile in the class hello, but.... 
(see below)
>                 mapper().assign("smile","/smile");
>
>                 dispatcher().assign("",&hello::welcome,this);
>                 mapper().assign("");
>
>                 mapper().root("/hello");
>             }
>         virtual void main(std::string url);
> };
>
> void hello::main(std::string url) {
>     response().out() <<
>         "<html>\n"
>         "<body>\n"
>         "    <h1>Hello, world!</h1>\n"
>         "</body>\n"
>         "</html>\n";
> }
>
> void number(std::string num) {
>     int no = atoi(num.c_str());
>     response().out() << "The number is " << no << "<br/>\n";
>     response().out() << "<a href='" << url("/") << "'>Go back</a>";
> }
number is declared as function only, not as method from hello, for doing 
so, write
void hello:number(std::string num), but better would be
void hello:number(const std::string &num)
>
> void smile() {
>     response().out() << ":) <br/>\n";
>     response().out() << "<a href='" << url("/") << "'>Go back</a>";
> }
smile as number
>
> void welcome() {
>     response().out() <<
>         "<h1> Wellcome To Page with links </h1>\n"
>         "<a href='" << url("/number",1)  << "'>1</a><br>\n"
>         "<a href='" << url("/number",15) << "'>15</a><br>\n"
>         "<a href='" << url("/smile") << "' >:)</a><br>\n";
> }
the same here
>
> int main(int argc, char ** argv) {
>     try {
>         cppcms::service srv(argc, argv);
>         srv.applications_pool().mount (
>         cppcms::applications_factory<hello>()
>         );
>         srv.run();
>     }
>     catch(std::exception const&e) {
>         std::cerr << e.what() << std::endl;
>     }
> }
>
> Any help would be much appreciated.
>
I hope this helps ;)
> Regards,
> Brian

Marcel
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>
>
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users

Re: [Cppcms-users] What did I do wrong? (tutorial #3)

[kpeo <sla...@ya...>]

Hello,

You use functions as &hello::number in dispatcher, but not declare it inside class.
So declare it below "main":
class hello ...
{
...
virtual void main(std::string url);
void number(std::string);
void smile();
void welcome();
};

and write it below as "hello::number", etc. instead "number":

void hello::number(std::string num) {
    int no = atoi(num.c_str());
    response().out() << "The number is " << no << "<br/>\n";
    response().out() << "<a href='" << url("/") << "'>Go back</a>";
}

> Hey everyone,
> 
> I just installed CppCMS on Windows with a MinGW shell. I'm still pretty new to C++ and am setting up a web server as a learning exercise, but I'm stuck at tutorial 3. I pretty much copy-pasted all the code -- did I go wrong, or is there something wrong with my environment?
> 
> I'm getting compile errors using g++ (g++ hello.cpp -lcppcms -o hello):
... 
> class hello : public cppcms::application {
> public:
> hello(cppcms::service &srv) :
> cppcms::application(srv) {
> dispatcher().assign("/number/(\\d+)",&hello::number,this,1);
> 
> mapper().assign("number","/number/{1}");
> 
> dispatcher().assign("/smile",&hello::smile,this);
> mapper().assign("smile","/smile");
> 
> dispatcher().assign("",&hello::welcome,this);
> mapper().assign("");
> 
> mapper().root("/hello");
> }
> virtual void main(std::string url);
> 
> };
> 
> void hello::main(std::string url) {
> response().out() <<
> "<html>\n"
> "<body>\n"
> " <h1>Hello, world!</h1>\n"
> 
> "</body>\n"
> "</html>\n";
> }
> 
> void number(std::string num) {
> int no = atoi(num.c_str());
> response().out() << "The number is " << no << "<br/>\n";
> 
> response().out() << "<a href='" << url("/") << "'>Go back</a>";
> }
> 
> void smile() {
> response().out() << ":) <br/>\n";
> 
> response().out() << "<a href='" << url("/") << "'>Go back</a>";
> }
> 
> void welcome() {
> response().out() <<
> "<h1> Wellcome To Page with links </h1>\n"
> 
> "<a href='" << url("/number",1) << "'>1</a><br>\n"
> "<a href='" << url("/number",15) << "'>15</a><br>\n"
> 
> "<a href='" << url("/smile") << "' >:)</a><br>\n";
> }
> 
> int main(int argc, char ** argv) {
> try {
> cppcms::service srv(argc, argv);
> 
> srv.applications_pool().mount (
> cppcms::applications_factory<hello>()
> );
> srv.run();
> }
> catch(std::exception const&e) {
> std::cerr << e.what() << std::endl;
> 
> }
> }
> 
> Any help would be much appreciated.
> 
> Regards,
> Brian

[Cppcms-users] What did I do wrong? (tutorial #3)

[Brian L. <to...@gm...>]

Hey everyone,

I just installed CppCMS on Windows with a MinGW shell. I'm still pretty new
to C++ and am setting up a web server as a learning exercise, but I'm stuck
at tutorial 3. I pretty much copy-pasted all the code -- did I go wrong, or
is there something wrong with my environment?

I'm getting compile errors using g++ (g++ hello.cpp -lcppcms -o hello):

hello.cpp: In constructor, 'hello::hello(cppcms::service&)':
hello.cpp:14:43: error 'number' is not a member of 'hello'
hello.cpp:17:35: error: 'smile' is not a member of 'hello'
hello.cpp:20:29: error: 'welcome' is not a member of 'hello'
hello.cpp: In function 'void number(std::string)':
hello.cpp:39:11: error: 'response' was not declared in this scope
hello.cpp:40:44: error: 'url' was not declared in this scope
hello.cpp: In function 'void smile()':
hello.cpp:44:11: error: 'response' was not declared in this scope
hello.cpp:45:44: error: 'url' was not declared in this scope
hello.cpp:49:11: error: 'response' was not declared in this scope
hello.cpp:51:33: error: 'url' was not declared in this scope



#include <cppcms/application.h>
#include <cppcms/service.h>
#include <cppcms/http_response.h>
#include <cppcms/url_dispatcher.h>
#include <cppcms/url_mapper.h>
#include <cppcms/applications_pool.h>
#include <iostream>
#include <stdlib.h>

class hello : public cppcms::application {
    public:
        hello(cppcms::service &srv)    :
            cppcms::application(srv) {
                dispatcher().assign("/number/(\\d+)",&hello::number,this,1);
                mapper().assign("number","/number/{1}");

                dispatcher().assign("/smile",&hello::smile,this);
                mapper().assign("smile","/smile");

                dispatcher().assign("",&hello::welcome,this);
                mapper().assign("");

                mapper().root("/hello");
            }
        virtual void main(std::string url);
};

void hello::main(std::string url) {
    response().out() <<
        "<html>\n"
        "<body>\n"
        "    <h1>Hello, world!</h1>\n"
        "</body>\n"
        "</html>\n";
}

void number(std::string num) {
    int no = atoi(num.c_str());
    response().out() << "The number is " << no << "<br/>\n";
    response().out() << "<a href='" << url("/") << "'>Go back</a>";
}

void smile() {
    response().out() << ":) <br/>\n";
    response().out() << "<a href='" << url("/") << "'>Go back</a>";
}

void welcome() {
    response().out() <<
        "<h1> Wellcome To Page with links </h1>\n"
        "<a href='" << url("/number",1)  << "'>1</a><br>\n"
        "<a href='" << url("/number",15) << "'>15</a><br>\n"
        "<a href='" << url("/smile") << "' >:)</a><br>\n";
}

int main(int argc, char ** argv) {
    try {
        cppcms::service srv(argc, argv);
        srv.applications_pool().mount (
        cppcms::applications_factory<hello>()
        );
        srv.run();
    }
    catch(std::exception const&e) {
        std::cerr << e.what() << std::endl;
    }
}

Any help would be much appreciated.

Regards,
Brian

Re: [Cppcms-users] Continued discussion on bug 3536452 - transaction in progress

[<ele...@ex...>]

Good idea.

Although I'd call the guard class "transaction_guard" instead to let the
user know that cppdb::transaction and cppdb::transaction_guard guard are
related.

Either that or nest the guard class inside transaction.

Which one do you prefer?

Re: [Cppcms-users] Continued discussion on bug 3536452 - transaction in progress

[Artyom B. <art...@ya...>]

I think it would be better to create some kind of generic guard class with
different commits/rollbacks:


// information about statements

class guard {
   guard();

   guard(std::string const &on_start)

   guard(std::string const &on_start,
         std::string const &on_commit);

   guard(std::string const &on_start,
         std::string const &on_commit,
         std::string const &on_rollback);

   // set explicitly

   void on_start(std::string const &);     // default begin

   void on_commit(std::string const &);    // default commit

   void on_rollback(std::string const &);  // default rollback;


};


Now out transaction constructors would look like:

   // ordinary transaction

   transaction(cppdb::session &sql);
   // custom transaction

   transaction(cppdb::session &sql,guard const &g);


Now when I can run stuff like

   cppdb::guard myguard("BEGIN IMMEDIATE");


   cppdb::scope tr(sql,myguard);
   ...

   tr.commit();

or use it with savepoints or nested transactions



Define guard


   cppdb::guard myguard(
        "SAVEPOINT temp",
        "ROLLBACK TO SAVEPOINT temp",
        "RELEASE SAVEPOINT temp");

  or more explicitlu


   cppdb::guard myguard;

   myguard.on_start("SAVEPOINT temp");
   myguard.on_commit("RELEASE SAVEPOINT temp");
   myguard.on_rollback("ROLLBACK TO SAVEPOINT temp");


And now do stuff like:

   cppdb::transaction tr(sql);
         for(...) {
             cppdb::transaction sp(sql,myguard);
             ...
             sp.commit();

         }
       

   tr.commit();


This would be much more complete interface.




 
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/



----- Original Message -----
> From: "ele...@ex..." <ele...@ex...>

> 
> Here is another idea.
> 
> 1) Create a cppdb::base_transaction class and implement the current
> cppdb::transaction in it, but without calling begin() in it's constructor.
> 
> Make its functions/destructor virtual if users want to overload & support
> polymorphism.
> 
> 2) Make cppdb::transaction inherit from base_transaction and call
> session::begin() in it's constructor, so that current behavior is kept and
> there wont be any API breakage.
> 
> 3) Users will then be able to inherit from cppdb::base_transaction and
> create their own transaction classes.
> 
> This should avoid adding a default constructor and possibly confuse users.
> 
> Is this a solid proposal Artyom?
> 
> 
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and 
> threat landscape has changed and how IT managers can respond. Discussions 
> will include endpoint security, mobile security and the latest in malware 
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
> 

Re: [Cppcms-users] Continued discussion on bug 3536452 - transaction in progress

[<ele...@ex...>]

Here is another idea.

1) Create a cppdb::base_transaction class and implement the current
cppdb::transaction in it, but without calling begin() in it's constructor.

Make its functions/destructor virtual if users want to overload & support
polymorphism.

2) Make cppdb::transaction inherit from base_transaction and call
session::begin() in it's constructor, so that current behavior is kept and
there wont be any API breakage.

3) Users will then be able to inherit from cppdb::base_transaction and
create their own transaction classes.

This should avoid adding a default constructor and possibly confuse users.

Is this a solid proposal Artyom?

[Cppcms-users] Continued discussion on bug 3536452 - transaction in progress

[<ele...@ex...>]

I didn't want to re-open the bug again, but there's a still an idea i'd
like to discuss.

Artyom mentioned creating a "custom" transaction class to support
something like BEGIN {EXCLUSIVE|IMMEDIATE}

An idea would be to add a default constructor to cppcdb::transaction so
that users can inherit from it instead of creating standalone transaction
classes.

The current constructor cppdb::transaction(cppdb::session&) calls begin()
within itself so it cannot be modified.

Maybe we could also add a cppdb::transaction_base interface class with
virtual  commit() = 0 and rollback() = 0 functions.

If Artyom thinks this might be useful, I can create a patch to support
such functionality.

Petr

Re: [Cppcms-users] cppcms unclear issues and philosophy

[Artyom B. <art...@ya...>]

>> GCC 4.6.3 has it (4.7.x respectively as well)
>> http://gcc.gnu.org/onlinedocs/gcc-4.6.3/libstdc++/api/a01192.html
>> 
>> Did not lookup if earlier versions of gcc have the regex support as well.
>> 
>
>Ok... gcc-4.5 had not supported it (it was the last time I checked)
>also it seems that gcc-4.6 does supports it. Older version allowed me to compile
>the code but the "match result" was always false.
>

After a little check gcc-4.7 does not support regular expressions yet...

a simple

       regex r("foo");
       char const *b="xfooz";
       char const *e=b+strlen(b);
       std::cout << regex_search(b,e,r) << std::endl;

Prints 0 (of course with boost::regex it prints expected result 1)

So it is too early to remove PCRE

Artyom

[Cppcms-users] CppDB 0.3.1 Released

[Artyom B. <art...@ya...>]

Hello,

CppDB 0.3.1 Released

It is a bugfix release and it includes several critical bug fixes.
It is strongly recommended to upgrade to the latest version!

Changelog: http://cppcms.com/sql/cppdb/changelog.html

 
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/

Re: [Cppcms-users] How to set default response().out() stream precision?

[<ele...@ex...>]

> In C and C++ you read definitions from right to left and from inside out
>
>    int const *p[10]

Are you sure? in C ok, but in C++ any STL code ive ever seen reads "const
class& o". Even Bjarne writes it that way. It's simply more
understandable, at least to me.

Im not arguing with you, its the way you like it, that's the way you'll
get it. But I find it hardly "more understanding"

If anything "const char* const p" is a lot more logical as saying

"p is const and it's type is const char pointer"

To each of their own I guess, i just personally can't stand a lonely * or
&, it looks messy imo :)

Petr

Re: [Cppcms-users] How to set default response().out() stream precision?

[Artyom B. <art...@ya...>]

----- Original Message -----
> From: "ele...@ex..." <ele...@ex...>
> To: Artyom Beilis <art...@ya...>; cpp...@li...
> Cc: 
> Sent: Thursday, June 21, 2012 1:54 PM
> Subject: Re: [Cppcms-users] How to set default response().out() stream precision?
> 
>>    void on_before_stream_output(booster::function<(cppcms::http::context
>>  &)> const &);
>>    void on_after_stream_output(booster::function<(cppcms::http::context 
> &)>
>>  const &);
>> 
>>  Such a patch I can accept as it makes much more sense and may be actually
>>  useful
>>  for other things as well like altering a session or HTTP headers globally.
> 
> I like this solution.
> 
> I'll set the precision in the "master" view for now and then in 
> the next
> few days when I(hopefully) get some spare time I'll look into it.
> 

Ok

> One more thing... are you keen on using the same const order?
> 
> I've always been doing "const cppcms::http::context&" instead 
> of
> "cppcms::http::context const &"
> 
> Petr
> 

Small note the const refers to booster::function not to http::context

And yes because it is more consitent

In C and C++ you read definitions from right to left and from inside out

   int const *p[10]

array of size 10 of pointers to constant int.

Now lets see three different definitions

1. const int **p;
2. int const **p;
3. int * const *p;
4. int ** const p
5. int const * const * const p;
6. const int * const * const p;

Note that 1==2 and 5==6

But when you read for example 2, 3 and 4

4 - constant pointer to pointer to (mutable) int
3 - pointer to constant pointer to (mutable) int
2 - pointer to pointer to constant it.

This makes the position of const much more consistent and easy
to read especially for stuff like

  const int * const &p;

Is harder to understand visually then

  int const * const &p;
 
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/


> 
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and 
> threat landscape has changed and how IT managers can respond. Discussions 
> will include endpoint security, mobile security and the latest in malware 
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
> 

Re: [Cppcms-users] Who Uses CppCMS - Reminder

[陈抒 <csf...@gm...>]

Hello Artyom:
   I left Lifeix serveral months ago, as far as I know, they are still
using lottery system developed by my team based on CppCMS, but no new
products using CppCMS now.
   You maybe change the description like so:
Lifeix (立方网) <http://www.l99.com/> - XBox - a lottery system(a restful web
service based on CppCMS and CppDB)

   I developed another web site using your CppCMS for my friend. It
also uses your log library. Have a look at it from the URL below:
   www.cmltechnology.com.
   Change Language menu from 中文 to English, you will see the English
description.

   Your library saved me a lot of time and money, also taught me a lot.
Thanks.

陈抒
Best regards
http://blog.csdn.net/sheismylife


On Thu, Jun 21, 2012 at 6:06 PM, Artyom Beilis <art...@ya...> wrote:

>
>
> ----- Original Message -----
> > From: "ele...@ex..." <ele...@ex...>
> > To: Artyom Beilis <art...@ya...>;
> cpp...@li...
> > Cc:
> > Sent: Thursday, June 21, 2012 12:54 PM
> > Subject: Re: [Cppcms-users] Who Uses CppCMS - Reminder
> >
> > I'll let you know when my client accepts it :)
> >
> > Which will hopefully be soon...
> >
>
> Looking forward
>
> > It will be a good ad for you, trust me.
> >
> > hint: "CPPCMS is so good we trust it in aviation" :)
> >
> > Petr
> >
>
>
> Nice... Indeed it would very good "quality measure".
>
> (I have some background in aviation)
>
>
> Artyom Beilis
> --------------
> CppCMS - C++ Web Framework:   http://cppcms.com/
> CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Cppcms-users mailing list
> Cpp...@li...
> https://lists.sourceforge.net/lists/listinfo/cppcms-users
>

Re: [Cppcms-users] How to set default response().out() stream precision?

[<ele...@ex...>]

>   void on_before_stream_output(booster::function<(cppcms::http::context
> &)> const &);
>   void on_after_stream_output(booster::function<(cppcms::http::context &)>
> const &);
>
> Such a patch I can accept as it makes much more sense and may be actually
> useful
> for other things as well like altering a session or HTTP headers globally.

I like this solution.

I'll set the precision in the "master" view for now and then in the next
few days when I(hopefully) get some spare time I'll look into it.

One more thing... are you keen on using the same const order?

I've always been doing "const cppcms::http::context&" instead of
"cppcms::http::context const &"

Petr

Re: [Cppcms-users] How to set default response().out() stream precision?

[Artyom B. <art...@ya...>]

----- Original Message -----
> From: "ele...@ex..." <ele...@ex...>
> To: Artyom Beilis <art...@ya...>; cpp...@li...
> Cc: 
> Sent: Thursday, June 21, 2012 1:17 PM
> Subject: Re: [Cppcms-users] How to set default response().out() stream precision?
> 
>>    <% gt "{1,precision =10}" using my_high_precision_value 
> %>
> 
> That's just not feasible. If I had to do it for every number on the page,
> id have to spend like a whole day changing it all.
> 
>>  If you need to change it globally create a small function in you topmost
>>  application
>>  class that all your classes are derived from:
>> 
>>     void render(std::string const &template_name,cppcms::basi_context 
> &c)
>>     {
>>           response().out() << std::setprecision(10);
>>           cppcms::application::render(template_name,c);
>>     }
> 
> 
> Yes yes, I'm aware of this. However because the render functions are not
> virtual, so they are not intended for overloading. At least that's the way
> i've been taught so I did not want to do this either.
> 

See, you can override non-virtual function as well but the parent
classes you call the old one. In our case it is not used by parent (application)
class, it rather provides convenience interface to 

   base_content::app_guard g(content,my_app);
   service().views_pool().render(my_app.context().skin(),template_name,my_app.response().out(),content);

So this is not a problem - may be not the most beautiful solution but it
works and consistent with the standard.

If you don't like this create some other "hp_render" function and refactor the code
in much fewer places.

> Anyway, is there are a reason they are not virtual? There's other
> functions cppcms::application that are virtual.
> 
> Petr
>

Generally the only functions that are virtual are thous that
are expected to be overridden.

I can suggest an another option, consider you have some global skin:


<% template master uses master %>
<html>
<head> ....
<% end template %>

Just add a simple code like:

<% template master uses master %>
<% c++ out()<<std::setprecision(10) %>
<html>
<head> ....
<% end template %>

And every template that derives from the master page would include it...

See, there are many things you can do to override the default of the standard C++ std::ostream.

It is not a big problem.

Also if you are looking for correct solution for global altering of response().out() settings
at cppcms level you may want to add some callbacks to cppcms::http::response like

  void on_before_stream_output(booster::function<(cppcms::http::context &)> const &);
  void on_after_stream_output(booster::function<(cppcms::http::context &)> const &);

Such a patch I can accept as it makes much more sense and may be actually useful
for other things as well like altering a session or HTTP headers globally.

  
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/

Re: [Cppcms-users] How to set default response().out() stream precision?

[<ele...@ex...>]

>   <% gt "{1,precision =10}" using my_high_precision_value %>

That's just not feasible. If I had to do it for every number on the page,
id have to spend like a whole day changing it all.

> If you need to change it globally create a small function in you topmost
> application
> class that all your classes are derived from:
>
>    void render(std::string const &template_name,cppcms::basi_context &c)
>    {
>          response().out() << std::setprecision(10);
>          cppcms::application::render(template_name,c);
>    }


Yes yes, I'm aware of this. However because the render functions are not
virtual, so they are not intended for overloading. At least that's the way
i've been taught so I did not want to do this either.

Anyway, is there are a reason they are not virtual? There's other
functions cppcms::application that are virtual.

Petr