Plperl functions with OUT parameters crashing each other when used in the same connection - Mailing list pgsql-general

From Philippe Lang
Subject Plperl functions with OUT parameters crashing each other when used in the same connection
Date
Msg-id 6C0CF58A187DA5479245E0830AF84F421D1159@poweredge.attiksystem.ch
Whole thread Raw
Responses Re: Plperl functions with OUT parameters crashing each other when used in the same connection  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
Hi,

I've got a strange bug with two plperl functions using OUT parameters: with a fresh ODBC or pgAdmin connection, I can
callthe first function, but then all further calls to the second function fail, or call the the second function, but
thenall further calls to the first function fail. Even more strange: when the second call fails, the message changes at
eachnew try, mentioning one of the variables used as OUT parameters in the other function. Something is apprently not
releasedfrom memory between each calls. 

I'm using plperlu further in the program, with CPAN libraries; is the mix between plperl and plperlu forbidden, or can
thisbe a "plperlU" effect? 

Thanks for your help,

Cheers,


------------------------------------------------------------
--  FUNCTION: volets_fiche_fab_1
------------------------------------------------------------
CREATE OR REPLACE FUNCTION public.volets_fiche_fab_1
(
    IN id_commande        int4,

    OUT pos                  int4,
    OUT quant            int4,
    OUT nbre_vtx              int4,
    OUT nbre_vtx_total        int4,
    OUT larg_maconnerie        int4,
    OUT haut_maconnerie        int4,
    OUT larg_vtx                varchar(20),
    OUT haut_vtx              int4,
    OUT ouv                   int4,
    OUT couvre_joints         text,
    OUT coupe_verticale       text,
    OUT vide_interieur        varchar(20),
    OUT typ                  varchar(20)
)
RETURNS SETOF record
AS

$$

    #----------------------------------------------------------------------------
    #-- Configuration des paramètres de la fonction
    #----------------------------------------------------------------------------
    @i = ( 'id_commande'
         );

    @io = ();

    @o = ( 'pos',
         'quant',
           'nbre_vtx',
           'nbre_vtx_total',
           'larg_maconnerie',
           'haut_maconnerie',
           'larg_vtx',
           'haut_vtx',
           'ouv',
           'couvre_joints',
         'coupe_verticale',
           'vide_interieur',
       'typ'
         );

    #----------------------------------------------------------------------------
    #-- Préparation des paramètres de la fonction
    #----------------------------------------------------------------------------
    &start_sub(@_);

    #----------------------------------------------------------------------------
    #-- Création de la fiche de fabrication
    #----------------------------------------------------------------------------
    $lignes_query = 'SELECT * FROM lignes WHERE id_commande = ' . $input{'id_commande'} . ' ORDER BY pos;';
    $lignes = spi_exec_query($lignes_query);
    $lignes_nrows = $lignes->{processed};
    foreach my $lignes_rn (0 .. $lignes_nrows - 1)
    {
    # Fabrication de la ligne
    $fab = spi_exec_query('SELECT * FROM volets_fab(' . $lignes->{rows}[$lignes_rn]->{'id'} . ');');
    $fab_nrows = $fab->{processed};

    # Recherches des éventuels vantaux de gauche et droite
    my $vtxg;
    my $vtxd;
    for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Largeur de vantail gauche') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $vtxg = $fab->{rows}[$j]->{'larg'}; }
    for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Largeur de vantail droite') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $vtxd = $fab->{rows}[$j]->{'larg'}; }

    # Position
    $output{'pos'} = $lignes->{rows}[$lignes_rn]->{'pos'};

    # Quantité
        $output{'quant'} = $lignes->{rows}[$lignes_rn]->{'quant'};

    # Nombre de vantaux
    $output{'nbre_vtx'} = $lignes->{rows}[$lignes_rn]->{'nbre_vtx'};

    # Nombre de vantaux total
    $output{'nbre_vtx_total'} = $lignes->{rows}[$lignes_rn]->{'nbre_vtx'} * $lignes->{rows}[$lignes_rn]->{'quant'};

    # Largeur de maçonnerie
    for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Largeur de maçonnerie') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $output{'larg_maconnerie'} = $fab->{rows}[$j]->{'larg'}; }
    else { $output{'larg_maconnerie'} = ''; };

    # Hauteur de maçonnerie
        for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Hauteur de maçonnerie') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $output{'haut_maconnerie'} = $fab->{rows}[$j]->{'haut'}; }
    else { $output{'haut_maconnerie'} = ''; };

        # Largeur de vantail
    if (defined($vtxg) and defined($vtxd))
    {
        # Vantaux asymétriques
        $output{'larg_vtx'} = $vtxg . " / " . $vtxd;
    }
    else
    {
        # Vantaux symétriques
        for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Largeur de vantail') and ($j < $fab_nrows); $j = $j + 1) {};
        if ($j < $fab_nrows) { $output{'larg_vtx'} = $fab->{rows}[$j]->{'larg'}; }
        else { $output{'larg_vtx'} = ''; };
    }

    # Hauteur de vantail
        for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Hauteur de vantail') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $output{'haut_vtx'} = $fab->{rows}[$j]->{'haut'}; }
    else { $output{'haut_vtx'} = ''; };

        # Type d'ouverture
    $output{'ouv'} = $lignes->{rows}[$lignes_rn]->{'ouv'};

    # Image des couvre-joints
    for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Couvre-joints') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $output{'couvre_joints'} = $fab->{rows}[$j]->{'image'}; }
    else { $output{'couvre_joints'} = ''; };

    # Image de la coupe verticape
    for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Coupe verticale') and ($j < $fab_nrows); $j = $j + 1) {};
    if ($j < $fab_nrows) { $output{'coupe_verticale'} = $fab->{rows}[$j]->{'image'}; }
    else { $output{'coupe_verticale'} = ''; };

    # Vide intérieur
    if (defined($vtxg) and defined($vtxd))
    {
        # Vantaux asymétriques
        $output{'vide_interieur'} = ($vtxg - 106) . " / " . ($vtxd - 106);
    }
    else
    {
        # Vantaux symétriques
        for ($j = 0; ($fab->{rows}[$j]->{'article'} ne 'Largeur de vantail') and ($j < $fab_nrows); $j = $j + 1) {};
        if ($j < $fab_nrows) { $output{'vide_interieur'} = $fab->{rows}[$j]->{'larg'} - 106; }
        else { $output{'vide_interieur'} = ''; };
    }

    # Type de volet
    $output{'typ'} = $lignes->{rows}[$lignes_rn]->{'typ'};

    # Sortie
        ret(@_);
    }

    #----------------------------------------------------------------------------
    #-- Helper functions
    #----------------------------------------------------------------------------
    end_sub(@_);

    sub start_sub
    {
        init(@_);
    }

    sub end_sub
    {
        return undef;
    }

    sub init
    {
    $c = 0;
        foreach $i (@i) {$input{$i} = @_[$c++]};
        foreach $io (@io) {$input{$io} = @_[$c]; $output{$io} = @_[$c++]};
        foreach $o (@o) {$output{$o} = @_[$c++]};
    }

    sub ret
    {
    while (($key, $value) = each %output) {if (!defined($value)) {elog(ERROR, 'Valeur indéfinie pour ' . $key)}};
    return_next \%output;
    init(@_);
    }

$$

LANGUAGE 'plperl' VOLATILE;

------------------------------------------------------------
--  FUNCTION: volets_fiche_fab_2
------------------------------------------------------------
CREATE OR REPLACE FUNCTION public.volets_fiche_fab_2
(
    IN id_commande        int4,

    OUT pos                  int4,
    OUT article            varchar(50),
    OUT montage            varchar(50),
    OUT quant            int4,
    OUT long            int4,
    OUT larg            int4,
    OUT haut            int4
)
RETURNS SETOF record
AS

$$

    #----------------------------------------------------------------------------
    #-- Configuration des paramètres de la fonction
    #----------------------------------------------------------------------------
    @i = ( 'id_commande'
         );

    @io = ();

    @o = ( 'pos',
         'article',
           'montage',
           'quant',
           'long',
           'larg',
           'haut'
         );

    #----------------------------------------------------------------------------
    #-- Préparation des paramètres de la fonction
    #----------------------------------------------------------------------------
    &start_sub(@_);

    #----------------------------------------------------------------------------
    #-- Création de la fiche de fabrication
    #----------------------------------------------------------------------------
    $lignes_query = 'SELECT * FROM lignes WHERE id_commande = ' . $input{'id_commande'} . ' ORDER BY pos;';
    $lignes = spi_exec_query($lignes_query);
    $lignes_nrows = $lignes->{processed};
    foreach my $lignes_rn (0 .. $lignes_nrows - 1)
    {
    # Fabrication de la ligne
    $fab = spi_exec_query('SELECT * FROM volets_fab(' . $lignes->{rows}[$lignes_rn]->{'id'} . ');');
    $fab_nrows = $fab->{processed};

    # On passe en revue l'éclaté des pièces de la ligne
    for ($j = 0; $j < $fab_nrows; $j = $j + 1)
        {
            if (($fab->{rows}[$j]->{'article'} =~ /^(Montant|Traverse|Palette|Panneau|Baguette|Couvre-joint)/) &&
                ($fab->{rows}[$j]->{'t'} eq 'E'))
            {
                $output{'pos'} = $lignes->{rows}[$lignes_rn]->{'pos'};
                $output{'article'} = $fab->{rows}[$j]->{'article'};
                $output{'montage'} = $fab->{rows}[$j]->{'montage'};
                $output{'quant'} = $fab->{rows}[$j]->{'quant'};
                $output{'long'} = $fab->{rows}[$j]->{'long'};
                $output{'larg'} = $fab->{rows}[$j]->{'larg'};
                $output{'haut'} = $fab->{rows}[$j]->{'haut'};
                ret(@_);
            }
        }
    }

    #----------------------------------------------------------------------------
    #-- Helper functions
    #----------------------------------------------------------------------------
    end_sub(@_);

    sub start_sub
    {
        init(@_);
    }

    sub end_sub
    {
        return undef;
    }

    sub init
    {
    $c = 0;
        foreach $i (@i) {$input{$i} = @_[$c++]};
        foreach $io (@io) {$input{$io} = @_[$c]; $output{$io} = @_[$c++]};
        foreach $o (@o) {$output{$o} = @_[$c++]};
    }

    sub ret
    {
    #while (($key, $value) = each %output) {if (!defined($value)) {elog(ERROR, 'Valeur indéfinie pour ' . $key)}};
    return_next \%output;
    init(@_);
    }

$$

LANGUAGE 'plperl' VOLATILE;



----------------------------------
Philippe Lang, Ing. Dipl. EPFL
Attik System
rte de la Fonderie 2
1700 Fribourg
Switzerland
http://www.attiksystem.ch

Tel:  +41 (26) 422 13 75
Fax:  +41 (26) 422 13 76

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