OpenEuphoria

win32lib et multitasking

• Posted by chadal <francois.chadal at girce.caisse-epargne.fr> Nov 08, 2006
• 1065 views

My project uses Euphoria 3.0.1 and win32lib. Recently, i've insert multi-taking
functions (task_create, task_schedule, task_suspend and task_yield). Since this
update, i've often this kind of error i've never seen before multi-tasking
version.

Why there is no value ?!? for parms and funcid parameters !?!

How can i help to analyse this trouble ?

Are there some restrictions of using task_yield in main task ?


François Chadal


---------------------- TASK ID 0 initial task ----------------------------
D:\EUPHORIA\Biblio\win32lib\Include\w32dll.ew:283 in procedure w32Proc() 
A machine-level exception occurred during execution of this statement 
    funcid = <no value>
    parms = <no value>
    libfunc = <no value>
    lFuncDef = <no value>
    memset = <no value>
    i = <no value>

... called from D:\EUPHORIA\Biblio\win32lib\Include\Win32Lib.ew:33346 in
procedure eventLoop()
    pData = {}
    temp = <no value>
    msg = 10474436
    getRC = 1
    inc = <no value>
    el = 1
    lTock = 0

... called from D:\EUPHORIA\Biblio\win32lib\Include\Win32Lib.ew:33553 in
procedure WinMain()
    id = 3
    style = 0
    lInitFocus = -1
    lRtnId = <no value>
    lEventName = <no value>
    lInitView = <no value>
    i = <no value>

... called from D:\EUPHORIA\ose\bin\winOSE.exw:541 

global procedure w32Proc(atom funcid, sequence parms)
    atom libfunc
    object lFuncDef

    atom memset

    memset = 0
    for i = 1 to length(parms) do
        if sequence(parms[i]) then
            if memset = 0 then
                memset = w32new_memset()
            end if
            parms[i] = w32acquire_mem(memset, parms[i])
        end if
    end for


    if funcid > kMagicRtnID then
    funcid -= kMagicRtnID
    if funcid <= length(vw32Routines) then
        lFuncDef = vw32Routines[funcid]

        if sequence(lFuncDef) then
        if lFuncDef[1] < 0 then
            lFuncDef[1] = -lFuncDef[1]
            if vw32Libraries[lFuncDef[1]][1][1] = 0 then
            vw32Libraries[lFuncDef[1]][1] =
                linkDLL(vw32Libraries[lFuncDef[1]][2])
            end if
            lFuncDef[1] = vw32Libraries[lFuncDef[1]][1][2]
        end if

        lFuncDef = linkProc(    lFuncDef[1], -- library
                      lFuncDef[2], -- function name
                      lFuncDef[3] -- param signature
                      )
        vw32Routines[funcid] = lFuncDef
        end if

        c_proc(lFuncDef, parms)
    else
        abortErr(Err_BADFUNCID)
    end if
    else
    if funcid > 0 then
        c_proc(funcid, parms)  -- <--ligne 283 of win32lib\Include\w32dll.ew
    else
        abortErr(Err_BADFUNCID)
    end if
    end if


    if memset != 0 then
        w32release_mem(memset)
    end if

end procedure