hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Support for mysql session variable commands, for example, SET AUTOCOMMIT=0

Browse Source 
Session commands are identified by query clasisfier, and added to the session command property list in router client session object.
Session commands are then executed in existing backend servers but only one of them will reply to client.
This commit is contained in:
VilhoRaatikka
2014-02-26 20:07:09 +02:00
parent b673108276
commit 3e111534a1
6 changed files with 826 additions and 184 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
server/modules/routing/readconnroute.c
View File

@ -119,10 +119,10 @@ static ROUTER_OBJECT MyObject = {
errorReply
};
static bool rses_begin_router_action(
static bool rses_begin_locked_router_action(
ROUTER_CLIENT_SES* rses);
static void rses_exit_router_action(
static void rses_end_locked_router_action(
ROUTER_CLIENT_SES* rses);
static SPINLOCK instlock;
@ -498,13 +498,13 @@ DCB* backend_dcb;
/**
* Lock router client session for secure read and update.
*/
if (rses_begin_router_action(router_cli_ses))
if (rses_begin_locked_router_action(router_cli_ses))
{
backend_dcb = router_cli_ses->backend_dcb;
router_cli_ses->backend_dcb = NULL;
router_cli_ses->rses_closed = true;
/** Unlock */
rses_exit_router_action(router_cli_ses);
rses_end_locked_router_action(router_cli_ses);
/**
* Close the backend server connection
@ -550,14 +550,14 @@ routeQuery(ROUTER *instance, void *router_session, GWBUF *queue)
/**
* Lock router client session for secure read of DCBs
*/
rses_is_closed = !(rses_begin_router_action(router_cli_ses));
rses_is_closed = !(rses_begin_locked_router_action(router_cli_ses));
}
if (!rses_is_closed)
{
backend_dcb = router_cli_ses->backend_dcb;
/** unlock */
rses_exit_router_action(router_cli_ses);
rses_end_locked_router_action(router_cli_ses);
}
if (rses_is_closed || backend_dcb == NULL)
@ -696,7 +696,7 @@ errorReply(
* @details (write detailed description here)
*
*/
static bool rses_begin_router_action(
static bool rses_begin_locked_router_action(
ROUTER_CLIENT_SES* rses)
{
bool succp = false;
@ -731,7 +731,7 @@ return_succp:
* @details (write detailed description here)
*
*/
static void rses_exit_router_action(
static void rses_end_locked_router_action(
ROUTER_CLIENT_SES* rses)
{
CHK_CLIENT_RSES(rses);