Re: [Cppcms-users] Asynchronous app calls thread_pool.post() and blocks current thread

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

1st of all threads_no() returns the SIZE of the thread pool and not the "specific thread ID".

So you'll see the same number.

Where do you think you are blocked? What is the output? Are you sure the loop completes? Print something before you "post -back"
to the event loop.

I don't see any specific problem why wouldn't it work.

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

--------------------------------------------
On Wed, 7/16/14, DieterM75 . <die...@gm...> wrote:

 Subject: Re: [Cppcms-users] Asynchronous app calls thread_pool.post() and blocks current thread
 To: "Artyom Beilis" <art...@ya...>, cpp...@li...
 Date: Wednesday, July 16, 2014, 10:18 PM
 
 Sure,
 
 I want an asynchronous application to
 handle some requests assigned to the dispatcher.
 Then for each request, a long running
 task is to be created. Therefore I want it to be executed
 not in the event loop and block the complete process.
 
 
 What I thought would happen was the
 jop posted via thread_pool().post would have been executed
 in a thread from the pool, not blocking the event loop nor
 the request handling.
 What I encounter
 is that the asynchronous application is not able to handle
 further requests while the first job is running, but rather
 enques them and processes them one after another.
 
 However, a timer I implemented with boosters
 deadline_timer is continuously triggering (not included in
 the code). So I guess the event loop is not blocked, but the
 application is.
 
 
 
 On Wed, Jul 16, 2014 at
 9:34 AM, Artyom Beilis <art...@ya...>
 wrote:
 
 Can you please send
 the code via attachment/inline and not "pastie"
 and explain in more details what happens?
  Artyom Beilis
 
 --------------
 
 CppCMS - C++ Web Framework:   http://cppcms.com/
 
 CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/
 
    
      From: dieterm57 <die...@gm...>
  To: cpp...@li...
 
 
  Sent: Monday,
 July 14, 2014 10:34 PM
  Subject: [Cppcms-users]
 Asynchronous app calls thread_pool.post() and blocks    current
 thread
 
    
 Hey all,
 I try to run an
 eventhandler inside of an asynchronous application,
 using the following code:
 http://pastie.org/private/9kuhjwvrzswmnpoczvvqw
 
 
 This seems to not block the eventloop, but
 the eventhandler gets called
 in the same
 thread the application runs in, resulting in the
 application
 not responding to new incoming
 requests.
 
 Is this the way
 it is designed or am I screwing up again :-[ ?
 
 What would be the correct application design to execute a
 'background'
 job in the thread_pool,
 while not blocking the incoming requests?
 
 Sincerely
 Dieter
 
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