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Bug #635911 GnuCash crashes out when trying to save-as MySQL

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Disclaimer: This fix attempt is purely based on the information given in
the bug report and code reading. I never could reproduce this bug
but the code suggests an unitialized pointer may be the the cause.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@19901 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Geert Janssens 2010-12-01 17:07:11 +00:00
parent 8ad9a908ca
commit a3d0888ed7
1 changed files with 34 additions and 6 deletions
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40
src/backend/dbi/gnc-backend-dbi.c
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@ -375,16 +375,38 @@ mysql_error_fn( dbi_conn conn, void* user_data )
gint err_num;
err_num = dbi_conn_error( conn, &msg );
/* Note: the sql connection may not have been initialized yet
* so let's be careful with using it
*/
/* Database doesn't exist. When this error is triggered the
* GncDbiSqlConnection may not exist yet either, so don't use it here
*/
if ( err_num == 1049 ) // Database doesn't exist
{
PINFO( "DBI error: %s\n", msg );
be->exists = FALSE;
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_NO_SUCH_DB, 0, FALSE );
return;
}
else if ( err_num == 2006 ) // Server has gone away
/* All the other error handling code assumes the GncDbiSqlConnection
* has been initialized. So let's assert it exits here, otherwise
* simply return.
*/
if (!dbi_conn)
{
PINFO( "DBI error: %s\n", msg );
PINFO( "Note: GbcDbiSqlConnection not yet initialized. Skipping further error processing." );
return;
}
/* Test for other errors */
if ( err_num == 2006 ) // Server has gone away
{
PINFO( "DBI error: %s - Reconnecting...\n", msg );
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_CONN_LOST, 1, TRUE );
if (dbi_conn)
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_CONN_LOST, 1, TRUE );
dbi_conn->conn_ok = TRUE;
(void)dbi_conn_connect( conn );
}
@ -393,13 +415,15 @@ mysql_error_fn( dbi_conn conn, void* user_data )
if (dbi_conn->error_repeat >= DBI_MAX_CONN_ATTEMPTS )
{
PERR( "DBI error: %s - Giving up after %d consecutive attempts.\n", msg, DBI_MAX_CONN_ATTEMPTS );
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_CANT_CONNECT, 0, FALSE );
if (dbi_conn)
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_CANT_CONNECT, 0, FALSE );
dbi_conn->conn_ok = FALSE;
}
else
{
PINFO( "DBI error: %s - Reconnecting...\n", msg );
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_CANT_CONNECT, 1, TRUE );
if (dbi_conn)
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_CANT_CONNECT, 1, TRUE );
dbi_conn->conn_ok = TRUE;
(void)dbi_conn_connect( conn );
}
@ -407,7 +431,8 @@ mysql_error_fn( dbi_conn conn, void* user_data )
else // Any other error
{
PERR( "DBI error: %s\n", msg );
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_MISC, 0, FALSE );
if (dbi_conn)
gnc_dbi_set_error( dbi_conn, ERR_BACKEND_MISC, 0, FALSE );
}
}
@ -1248,6 +1273,9 @@ init_sql_backend( GncDbiBackend* dbi_be )
be->export_fn = NULL;
gnc_sql_init( &dbi_be->sql_be );
dbi_be->sql_be.conn = NULL;
dbi_be->sql_be.primary_book = NULL;
}
static QofBackend*