Re: [Cppcms-users] Unmount asynchronous application from application pool

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

There two things.

- The tutorial describes the situation were the ENTIRE cppcms service is reloaded. In case of pointers to asynchronous applications, you can reset them withing if(got_sighup) { ... } section.

Additionally you can remove the asynchronous application by simply expiring its pointer. Once all the references (for example kept in callbacks) and your reference are expired it would be deleted. Asynchronous applications can be removed and added dynamically (unlike synchronous ones that only can be added)


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

--------------------------------------------
On Fri, 11/8/13, DieterM75 . <die...@gm...> wrote:

 Subject: [Cppcms-users] Unmount asynchronous application from application pool
 To: cpp...@li...
 Date: Friday, November 8, 2013, 9:58 AM
 
 Hello,
 
 I mount my application via the mount(booster::intrusive_ptr)
 method of the application pool class.
 I also try to implement some kind of reload mechanism,
 so that the service can start over again after certain
 errors.
 
 The example "reload the application" (http://cppcms.com/wikipp/en/page/cppcms_1x_reload_application)
 does not cover how to deal with asynchronous applications.
 If I pass an anonymous intrusive_ptr reference to the
 method, it gets created and destroyed immediately. Now if
 the signal gets handled and the service shutdown, the
 mounted application gets constructed and destroyed twice.
 Basically every time the signal is processed, the
 application pool does not automatically destroy the long
 running apps.
 
 Is there a way to avoid this problem?
 
 Sincerely
 Müller
 
 
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