comment on

I didn't write the data_sources method but I look after DBD::ODBC these days. I don't see a 64bit issue and inspecting the code I cannot see any issue although there are things I might have done differently.

I still suspect it is something to do with the large number of DSNs you have. If you download DBD::ODBC and build it yourself I can suggest a few small changes that might help identify the issue.

Download the latest DBD::ODBC, and untar it into a dir. Open a strawberry perl shell session and change to the dir above. Edit the file ODBC.xs and delete the function data_sources and replace it with the one below:

void
data_sources(drh, attr = NULL)
    SV* drh;
    SV* attr;
  PROTOTYPE: $;$
  PPCODE:
    {
#ifdef DBD_ODBC_NO_DATASOURCES
        /*    D_imp_drh(drh);
            imp_drh->henv = SQL_NULL_HENV;
            dbd_error(drh, (RETCODE) SQL_ERROR, "data_sources: SOLID d
+oesn't implement SQLDataSources()");*/
        XSRETURN(0);
#else
    int numDataSources = 0;
    SQLUSMALLINT fDirection = SQL_FETCH_FIRST;
    RETCODE rc;
    SQLCHAR dsn[SQL_MAX_DSN_LENGTH+1+9 /* strlen("DBI:ODBC:") */];
    SQLSMALLINT dsn_length;
    SQLCHAR description[256];
    SQLSMALLINT description_length;
    D_imp_drh(drh);

    if (!imp_drh->connects) {
        rc = SQLAllocEnv(&imp_drh->henv);
        if (!SQL_ok(rc)) {
            imp_drh->henv = SQL_NULL_HENV;
            dbd_error(drh, rc, "data_sources/SQLAllocEnv");
            XSRETURN(0);
        }
    }
    strcpy(dsn, "dbi:ODBC:");
    while (1) {
        description[0] = '\0';
        rc = SQLDataSources(imp_drh->henv, fDirection,
                            dsn+9, /* strlen("dbi:ODBC:") */
                            SQL_MAX_DSN_LENGTH,
                            &dsn_length,
                            description, sizeof(description),
                            &description_length);
        if (!SQL_ok(rc)) {
            if (rc != SQL_NO_DATA_FOUND) {
                /*
                 *  Temporarily increment imp_drh->connects, so
                 *  that dbd_error uses our henv.
                 */
                imp_drh->connects++;
                dbd_error(drh, rc, "data_sources/SQLDataSources");
                imp_drh->connects--;
            }
            break;
        }
        printf("/%s/ (%d), /%s/ (%d)\n",
               (dsn + 9), dsn_length,
               description, description_length);
        ST(numDataSources++) = newSVpv(dsn, dsn_length+9 /* strlen("db
+i:ODBC:") */ );
        fDirection = SQL_FETCH_NEXT;
    }
    if (!imp_drh->connects) {
        SQLFreeEnv(imp_drh->henv);
        imp_drh->henv = SQL_NULL_HENV;
    }
    XSRETURN(numDataSources);                   /* return indicating #
+ items on stack */
#endif /* no data sources */
    }
[download]

Now type perl Makefile.PL, then dmake and it should build you a DBD::ODBC. Now run something like the following:

perl -Ic:\path_to_dbd_odbc_dir\blib\lib -Ic:\path_to_dbd_odbc_dir\blib
+\arch -le "use DBI; my @a = DBI->data_sources('ODBC');"
[download]

Replace c:\path_to_dbd_odbc_dir as per your machine and where you unpacked DBD::ODBC. It should output a list of your dsns and lengths - what was the output and did it crash? If it does not crash, take the printf line out (all from printf to the semi colon), rebuild and try again? Does it work now?

In reply to Re^4: Strawberry Perl 64bit on Win7 crashes on DBI-function by mje
in thread Strawberry Perl 64bit on Win7 crashes on DBI-function by theman824

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		`&`
	<		`<`
	>		`>`
	[		`[`
	]		`]`

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.