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query_classifier.cc

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Replaced fprintf's with log write commands, removed the second argument from call of mysql_reset_thd_for_next_command(thd) according to changes in mariadb/5.5/sql/sql_parse.c #rev 3958.

server/Makefile
	Instead of installing MaxScale.cnf (and overwriting previous config file), install MaxScale_template.cnf to DEST directory.

config.c
	Replace references to 'Gateway' with 'MaxScale', change configuration parameter 'auth' to 'passwd' as it is named in other instances where referenced to password.
This commit is contained in:
vraatikka
2013-11-20 15:55:43 +02:00
parent 0f120e5593
commit 4b1527b1c8
4 changed files with 174 additions and 39 deletions
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78
query_classifier/query_classifier.cc
View File

@ -100,24 +100,27 @@ skygw_query_type_t skygw_query_classifier_get_type(
skygw_query_type_t qtype = QUERY_TYPE_UNKNOWN;
bool failp = FALSE;
//ss_dfprintf(stderr, ">> skygw_query_classifier_get_type\n");
ss_info_dassert(query != NULL, ("query_str is NULL"));
query_str = const_cast<char*>(query);
#if QUERY_DEBUG
fprintf(stderr, " Query \"%s\"\n", query_str);
#endif
skygw_log_write(
LOGFILE_TRACE,
"%lu [skygw_query_classifier_get_type] Query : \"%s\"",
pthread_self(),
query_str);
/** Get server handle */
mysql = mysql_init(NULL);
if (mysql == NULL) {
fprintf(stderr,
"mysql_real_connect failed, %d : %s\n",
mysql_errno(mysql),
mysql_error(mysql));
mysql_library_end();
goto return_without_server;
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : call to mysql_real_connect failed due %d, %s.",
mysql_errno(mysql),
mysql_error(mysql));
mysql_library_end();
goto return_without_server;
}
/** Set methods and authentication to mysql */
@ -132,13 +135,13 @@ skygw_query_type_t skygw_query_classifier_get_type(
thd = get_or_create_thd_for_parsing(mysql, query_str);
if (thd == NULL) {
goto return_with_server_handle;
goto return_with_server_handle;
}
/** Create parse_tree inside thd */
failp = create_parse_tree(thd);
if (failp) {
goto return_with_thd;
goto return_with_thd;
}
qtype = resolve_query_type(thd);
@ -180,7 +183,6 @@ static THD* get_or_create_thd_for_parsing(
bool failp = FALSE;
size_t query_len;
//ss_dfprintf(stderr, "> get_or_create_thd_for_parsing\n");
ss_info_dassert(mysql != NULL, ("mysql is NULL"));
ss_info_dassert(query_str != NULL, ("query_str is NULL"));
@ -194,32 +196,42 @@ static THD* get_or_create_thd_for_parsing(
thd = (THD *)create_embedded_thd(client_flags);
if (thd == NULL) {
ss_dfprintf(stderr, "Couldn't create embedded thd\n");
goto return_thd;
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Failed to create thread context for parsing. "
"Exiting.");
goto return_thd;
}
mysql->thd = thd;
init_embedded_mysql(mysql, client_flags);
failp = check_embedded_connection(mysql, db);
if (failp) {
ss_dfprintf(stderr, "Checking embedded connection failed.\n");
goto return_err_with_thd;
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Call to check_embedded_connection failed. "
"Exiting.");
goto return_err_with_thd;
}
thd->clear_data_list();
/** Check that we are calling the client functions in right order */
if (mysql->status != MYSQL_STATUS_READY) {
set_mysql_error(mysql, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
goto return_err_with_thd;
set_mysql_error(mysql, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Invalid status %d in embedded server. "
"Exiting.");
goto return_err_with_thd;
}
/* Clear result variables */
/** Clear result variables */
thd->current_stmt= NULL;
thd->store_globals();
/*
We have to call free_old_query before we start to fill mysql->fields
for new query. In the case of embedded server we collect field data
during query execution (not during data retrieval as it is in remote
client). So we have to call free_old_query here
/**
* We have to call free_old_query before we start to fill mysql->fields
* for new query. In the case of embedded server we collect field data
* during query execution (not during data retrieval as it is in remote
* client). So we have to call free_old_query here
*/
free_old_query(mysql);
thd->extra_length = query_len;
@ -284,22 +296,28 @@ static bool create_parse_tree(
const char* virtual_db = "skygw_virtual";
if (parser_state.init(thd, thd->query(), thd->query_length())) {
failp = TRUE;
goto return_here;
failp = TRUE;
goto return_here;
}
mysql_reset_thd_for_next_command(thd, opt_userstat_running);
mysql_reset_thd_for_next_command(thd);
/** Set some database to thd so that parsing won't fail because of
* missing database. Then parse. */
failp = thd->set_db(virtual_db, strlen(virtual_db));
if (failp) {
fprintf(stderr, "Setting database for thd failed\n");
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Failed to set database in thread context.");
}
failp = parse_sql(thd, &parser_state, NULL);
if (failp) {
fprintf(stderr, "parse_sql failed\n");
skygw_log_write(
LOGFILE_DEBUG,
"%lu [readwritesplit:create_parse_tree] failed to "
"create parse tree.",
pthread_self());
}
return_here:
return failp;