OpenEuphoria

system_exec and RRDTOOL

• Posted by chadal <francois.chadal at girce.caisse-epargne.fr> Nov 02, 2006
• 548 views

Hello,

I'm trying to use system_exec with Euphoria (V3.0.0) instead of system(). But
the executable program give back a strange answer :

 rrdtool.exe succeeded
ERROR: unknown function '00'

With system(), all is ok (except the screen flash with MS-DOS window and bad
performance). The executable program RRDTOOL write on disk the desired image.

With system_exec, the answer says all is ok but no image created and a stange
function activated ?.

What's happen ? How to trace more in depth ? Any idea ?

FC

Below the string command used with the following code :

function execRRDtool( sequence cmd_data)                            --
    sequence cmd_rrd                                                -- 
    integer exit_code                                               -- 
--                                                                  -- 
--  cmd_rrd = "rrdtool.exe "&cmd_data&">"&path_rrd_log&"\\"&nom_rrd_log
--  system( cmd_rrd , 2)                                            -- 
--  return 0
    cmd_rrd = "rrdtool.exe "&cmd_data&" "                           -- 
    exit_code = system_exec(cmd_rrd , 2)                            -- 
    if exit_code = -1 then                                          -- 
        puts(2, "\n couldn't run rrdtool.exe\n")                    -- 
    elsif exit_code = 0 then                                        -- 
        puts(2, "\n rrdtool.exe succeeded\n")                       -- 
    else                                                            -- 
        printf(2, "\n rrdtool.exe failed with code %d\n", exit_code)-- 
    end if                                                          -- 
    return exit_code                                                    -- 
end function                                                        -- 

String command example : (no CRLF used)
graph D:\fchad\Doc-HTML\OSE\rrdtool\img\T01_j297.png --start "00:00 24/10/2006" 
--end "start+24hours"  --y-grid "none" --imgformat PNG   --title="Historique de
la journée du mardi 24 octobre 2006"  --vertical-label "Disponibilité"  --width
500 --height 50 --upper-limit 1 --rigid  --color CANVAS#000000 --color
BACK#101010  --color FONT#C0C0C0 --color MGRID#80C080 --color GRID#808020 --color
FRAME#808080 --color ARROW#FFFFFF --color SHADEA#404040 --color SHADEB#404040 
DEF:last=D\:\fchad\Doc-HTML\OSE\rrdtool\oseT01.rrd:T01:LAST  CDEF:niv2=last,1,+ 
CDEF:indispo=niv2,5,GT,niv2,0,IF CDEF:dispo=niv2,5,GT,0,niv2,IF
AREA:dispo#00FF00:"disponible"  AREA:indispo#FF0000:"indisponible"
François Chadal