Copyright (C)2019..2021 @BABOLO http://www.babolo.ru/
PKG = mini-cipa
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.

$Id: README,v 1.26 2021/09/05 17:06:02 babolo Exp $


==============
# TABLE    cipares \
  TABLE    cipamask \
  TABLE    ciparam   \
# TABLE    cipalist   } 
# VIEW     babolover /
# TABLE    version  /
# TABLE    srcs    /

  TABLE    cipaown  \
  TABLE    cipalan   \
  TABLE    cipacome   \
  TABLE    cipacut     \
  TABLE    cipago       \
  TABLE    cipaut        }  
  TABLE    ciparun      /
  TABLE    cipaon      /
  VIEW     cipaxn     /
  VIEW     cipafan   /

# TABLE    cipaghost \
# TABLE    cipapan    \
# VIEW     cipain      \
# VIEW     cipaup       \
# VIEW     cipato        \
# VIEW     cipafan        } API
  FUNCTION tocipa        /
# FUNCTION topute       /
# FUNCTION tolate      /
# FUNCTION cipatree   /
# FUNCTION cipone    /

# TABLE    cipaf   \
# TABLE    cipaj    \
# FUNCTION cipajo    } 
# FUNCTION cipaj0   /

# TABLE    cipamode \
# TABLE    cipapadr  }   ( + cipalist)
# TABLE    cipamess /

 #       ,   
,      
   .

  
====================

cipaup -> UPDATE -> cipaghost(m,v) -> cipaghost -> cipacome <--> cipacut
                                                     |
                                    cipafan          |
                                           |
                                       |             |
                                       |             |
cipato -> UPDATE -> cipapan(m,v) -> cipalan <--------+
                                       |
                                       V
               cipaon <- ciparun <- cipago <--> cipaut
                                    cipaxn*

 
=================
   ,    .
,      ,  
,         ..
   (...)     
(...),       
 -      ,  
  .  (...)  
,         
.

    ,   
       .
       
     ,  ,  
 (...) ,      .

,   3  (, ,
)        :

 |  
--------+---------------------
      0 | ####......##.......  
      1 | ....######.........  
      2 | ............#######  

, .#...#.......##....     
  ,  ,    ,
   .
     ,   
         
      .

 
====================
  cipalan     , 
 .   cipain   
     ,    
 cipalan.    ,    
,    , ,   
 .    ,  
 ,    .  
       
  .    cipain 
 cipaon   .  cipaon    
      ,   
 ,   .  
cipamask        
,  cipares     
    .

      ,  
  .    
       
 .
 
 cipaghost     
    .  VIEW cipaup  
 ,   UPDATE     
  cipaup.          
 .  UPDATE     
,     .

 
================
 ,      
 ,  0 (  )  254 (
 ).     
     , 
(  )     
     .    
 ,      , 
 ,      < 255 ( 
)

cipares
=======
   , :
  - cipares   -     
  - ciparesnm -    

cipamask
========
      , :
  - cipalevel -   ,  , 0
                      .
  - cipamask  -      
                   ,   
                  0, 1    
                   .

ciparam
=======
  - m        -   - .
  - v        -     .
  - param    -   .

cipaown
=======
     .

  - cipaown  -  .
  - owname   -   .
  - ownpath  -   exec*()  cipath.

cipalan
=======
   ,  , :
  - cipalan  -    .
  - cipath   - ,   argv[]  exec(3),  
                  cipain.ciparg ( ).
                      
                exec().
  - selflock -       ,
                     
               cipalan.cipath || cipain.ciparg,    
                     
                    
               . NULL      
                 ,   
               .
  - cipaown  -   ,   cipaown.
  - period   -      , 
                    
                     .  NULL
                      
                 .
  - strict   -  TRUE     
                     
                 .  FALSE,    
                     
               .
  - selfgr   -     ,  
                     
               ,        
               .
  - success  -  TRUE    ,     0,
                   .
  - resource -   .
  - resar    -     cipalan.cipath || cipain.ciparg
               ( 1), (cipalan.cipath || cipain.ciparg)[resar[N]]
                 (...)  N  
                .
                0        .
  - renul    -   ,     ( 
               cipalan.cipath || cipain.ciparg)  
               (...)  N,  N   
                  .

cipacome
========
  .
  - cipain   -   .
  - cipalan  -    cipalan.
  - ciparg   -  ,  cipalan.cipath. 
                cipalan.cipath || cipain.ciparg 
                 argv[]   exec(3).
  - splan    -     .
  - prio     -  ( ,  ). 
                    
                prio    .

cipacut
=======
    .
  - cipain   -   .
  - cipaut   -  ,   .

cipago
======
 , :
  - cipain   -   .
  - cipaher  -  ,   .
  - cipalan  -    cipalan.
  - ciparg   -  ,  cipalan.cipath. 
                cipalan.cipath || cipain.ciparg 
                 argv[]   exec(3).
  - plan     -    .
  - prio     -  ( ,  ). 
                    
                prio    .
  - try      -     ,  
                .
  - renum    -    .

cipaut
======
,       .
  - cipain   -   .
  - cipaut   -  ,   .
  - actual   -   .

ciparun
=======
  cipago      .
  - cipain   -   .
  - deed     -    .
  - pid      - PID  .

cipaon
======
 ,     cipain   .
:
  - cipaon   -   cipain.cipain.
  - cipalan  -   cipain.
  - ciparg   -   cipain.
  - plan     -   cipain.
  - deed     -   ciparun.
  - pid      -   ciparun.
  - reed     -   .
  - try      -   cipain.

cipaxn
======
VIEW,      . :
  - cipain   -   cipain.
  - cipaher  -   cipain.
  - cipalan  -   cipain.
  - waitout  -   cipain.
  - ciparg   -   cipain.
  - plan     -   cipain.
  - prio     -   cipain.
  - try      -   cipain.
  - ready    -     ,  
               ,    .

cipaghost
=========
  - m        -   - .
  - v        -     .
  - cipain   -        cipain.

cipapan
=======
        .
  - m        -   - .
  - v        -     .
  - cipalan  -       .

cipain
======
     ,   ,
,   . :
  - cipain   -   
  - cipaher  -  ,   
  - cipalan  -    cipalan
  - waitout  -  .
  - ciparg   -  ,  cipalan.cipath.
  - plan     -    .
  - prio     -  ( ,  ).
  - deed     -    .
  - pid      - PID  .
  - try      -   .
  - ghost    - ,      .

cipaup
======
     ,   
cipain.        
UPDATE  .   SET  m, v, cipain, cipalan 
 , ,  UPDATE ,  
.

  - m        -   -   cipaghost,   UPDATE,
                  RETURNING.
  - v        -       cipaghost,
                 UPDATE,    RETURNING.
  - cipain   -     cipain  ghost = TRUE,  UPDATE
                RETURNING  cipain   
                ghost = FALSE.
  - cipalan  -  cipain,   UPDATE,   RETURNING.
  - waitout  -  cipain,  UPDATE,   RETURNING.
  - ciparg   -  cipain,  UPDATE   
                UPDATE,   RETURNING.
  - plan     -  cipain,  UPDATE , 
                RETURNING,  .
  - prio     -  cipain,  UPDATE    UPDATE, 
                 ,   RETURNING.

         . 
    ,     
,       
     UPDATE, ,   ,  now().

cipato
======
      cipalan ԣ UPDATE  .
  SET  m, v, cipain, cipalan   , ,
 UPDATE ,  .    cipapan.

  - m        -   -   cipapan,   UPDATE,
                  RETURNING.
  - v        -       cipapan,
                 UPDATE,    RETURNING.
  - cipain   - ,  UPDATE  RETURNING  cipain 
                .
  - cipalan  -  cipain,   UPDATE,   RETURNING.
  - waitout  - ,  UPDATE,   RETURNING.
  - ciparg   - ,  UPDATE,   RETURNING.
  - plan     - ,  UPDATE,    ,  
                now(),   RETURNING.
  - prio     - ,  UPDATE,    ,  
                DEFAULT,   RETURNING.

cipafan
=======
VIEW      , 
   ,     cipares.ciparesnm,
  -  cipalan.resource    cipares.cipares.

  - cipalan  -  cipalan.
  - cipath   -  cipalan.
  - selflock -  cipalan.
  - cipaown  -  cipalan.
  - period   -  cipalan.
  - strict   -  cipalan.
  - selfgr   -  cipalan.
  - success  -  cipalan.
  - resource -  cipalan.
  - resar    -  cipalan.
  - renul    -  cipalan.
  -   cipares,     cipalan.resource.
  - tail     -     cipalan.resource,   
                 .

tocipa()
========
   

+----------------------------------------
| CREATE TRIGGER 
|  AFTER INSERT OR UPDATE OR DELETE ON public.ciparam
|  FOR EACH STATEMENT
|  EXECUTE PROCEDURE public.tocipa()
| ;
+----------------------------------------

    cipaxn,  
     
    .

topute()
========
   

+----------------------------------------
| CREATE TRIGGER 
|  AFTER INSERT OR UPDATE OR DELETE ON 
|  FOR EACH STATEMENT
|  EXECUTE PROCEDURE public.topute(m, v,  )
| ;
+----------------------------------------

    ,   
  cipaghost   (m, v),  
    ciparg  .

tolate()
========
   

+----------------------------------------
| CREATE TRIGGER 
|  AFTER INSERT OR UPDATE OR DELETE ON 
|  FOR EACH STATEMENT
|  EXECUTE PROCEDURE public.tolate(m, v,  )
| ;
+----------------------------------------

   ,    
 cipapan   (m, v),   
ciparg  .

cipatree(int8)
==============
      cipain,  
  ,   (public.cipain.cipain)
  .

cipone(cipalan int4, waitout int8[], ciparg text[], plan timestamptz, prio int4)
================================================================================
    cipago    cipalan, waitout, ciparg, plan, prio.

 
====================
   cipalan   cipaxn  cipaup 
 cipaxn.     
 ,      cipaxn  
   .     , 
     ,   
   cipaxn.    cipaxn 
,        
  .  ,  , 
        
      ,  
.

 
==========================
     :

+----------------------------------------
| UPDATE cipaup
|    SET waitout = int8[]     --   
|      , ciparg  = text[]     --    
|      , plan    = timestamp  --    
|      , prio    = int2       --    
|  WHERE (m, v) = ('', '')
| ;
+----------------------------------------

 ,        
 ,  :

+----------------------------------------
| UPDATE cipaup SET m = m WHERE (m, v) = ('', '');
+----------------------------------------

    cipalan:

+----------------------------------------
| UPDATE cipato
|    SET waitout = int8[]     --    
|      , ciparg  = text[]     --    
|      , plan    = timestamp  --    
|      , prio    = int2       --    
|  WHERE (m, v) = ('', '')
| ;
+----------------------------------------

 ,    ,  :

+----------------------------------------
| UPDATE cipato SET m = m WHERE (m, v) = ('', '');
+----------------------------------------

        ###################
        #           #
        ###################

cipaf
=====
     .

  - f        -   .
  - m        -   -  .
  - v        -    .
  - d        - ,     
                .

cipaj
=====
 .

  - j        -   .
  - t        -  .
  - f        -  ,   cipaf
  - w        -   .
  - u        -   .

cipajo(cipaj)
=============
     
  .    
   cipaf.d .

cipaj0(cipaj)
=============
    , 
  .

        ###################
        #        #
        ###################

cipamode
========
   .

  - mode     -  .
  - mnam     -    .
  - opaq     -     .

cipalist
========
  .

  - list     -     .
  - dnam     -     .

cipapadr
========
  .

  - list     -      .
  - mode     -    .
  - padr     -  .

cipamess
========
.

  - mess     -   .
  - mtxt     -  .

  cipamode     .
      :

+----------------------------------------
| SELECT 'cipa', mnam, 'push', padr, mess --   
| #exec
+----------------------------------------

    :

+----------------------------------------
| UPDATE cipato
|    SET ciparg = ARRAY[list, mess] --   
| --   ....    
|  WHERE (m, v) = ('mini-cipa', 'push')
+----------------------------------------

      ,
    WITH  UPDATE cipato.

        ###################
        #    #
        ###################

version
=======
  .

  - pkg      -  .
  - protover -  .
  - major    -  .
  - minor    -  .
  - comconf  -   .
                 ,    .

srcs
====
        .

  - pkg      -  .
  - major    -  .
  - minor    -  .

babolover
=========
    .

  - pkg      -  .
  - protover -  .
  - smj      -      .
  - smi      -      .
  - vmj      -   .
  - vmi      -   .
  - comconf  -   .

