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Bug #468, http://bugs.skysql.com/show_bug.cgi?id=468, Query classifier accessed freed thread context. If parsing fails thd doesn't need to be freed because it holds correct information about command type.

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session.c:session_setup_filters : fixed memory leak
hintparser.c: added token_free for HINT_TOKENs and fixed a few memory leaks.
mysql_client_server_protocol.h: added mysql_protocol_done which frees memory blocks pointed to by protocol members. Those can't be freed in dcb.c because dcb.c doesn't know about protocol's members.
mysql_backend.c:gw_backend_close: fixed memory leak
mysql_client.c: gw_client_close: fixed memory leak
mysql_common.c: added implementation of mysql_protocol_done
        :protocol_archive_srv_command: tried to fix memory leak. Some memory is still leaking according to valgrind. Removed use of uninitialized local variable len.
readwritesplit.c: Fix to bug #469, http://bugs.skysql.com/show_bug.cgi?id=469,  rwsplit counts every connection twice in master - counnection counts leak
	execute_sescmd_in_backend: fixed a memory leak - visible only in DEBUG=Y build.
readwritesplit/test/makefile: added target for hints tests
This commit is contained in:
VilhoRaatikka
2014-08-05 18:14:06 +03:00
parent 76d7f3d836
commit 08b99c121e
14 changed files with 170 additions and 22 deletions
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14
query_classifier/query_classifier.cc
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@ -149,17 +149,17 @@ skygw_query_type_t skygw_query_classifier_get_type(
thd = get_or_create_thd_for_parsing(mysql, query_str);
if (thd == NULL)
{
skygw_query_classifier_free(mysql);
}
/** Create parse_tree inside thd */
failp = create_parse_tree(thd);
if (failp)
{
skygw_query_classifier_free(mysql);
*p_mysql = NULL;
goto return_qtype;
}
/**
* Create parse_tree inside thd.
* thd and even lex are readable even if parser failed so let it
* continue despite failure.
*/
failp = create_parse_tree(thd);
qtype = resolve_query_type(thd);
if (p_mysql == NULL)