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

Initial implementation of session based sharding.

Browse Source
This commit is contained in:
Markus Makela
2015-01-14 10:34:51 +02:00
parent 0187edf559
commit c1ed24aa78
4 changed files with 108 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
server/modules/include/dbshard.h
View File

@ -55,7 +55,8 @@ typedef enum bref_state {
BREF_IN_USE = 0x01,
BREF_WAITING_RESULT = 0x02, /*< for session commands only */
BREF_QUERY_ACTIVE = 0x04, /*< for other queries */
BREF_CLOSED = 0x08
BREF_CLOSED = 0x08,
BREF_DB_MAPPED = 0x10
} bref_state_t;
#define BREF_IS_NOT_USED(s) ((s)->bref_state & ~BREF_IN_USE)
@ -63,7 +64,7 @@ typedef enum bref_state {
#define BREF_IS_WAITING_RESULT(s) ((s)->bref_num_result_wait > 0)
#define BREF_IS_QUERY_ACTIVE(s) ((s)->bref_state & BREF_QUERY_ACTIVE)
#define BREF_IS_CLOSED(s) ((s)->bref_state & BREF_CLOSED)
#define BREF_IS_MAPPED(s) ((s)->bref_mapped)
typedef enum backend_type_t {
BE_UNDEFINED=-1,
BE_MASTER,
@ -206,6 +207,7 @@ typedef struct backend_ref_st {
BACKEND* bref_backend;
DCB* bref_dcb;
bref_state_t bref_state;
bool bref_mapped;
int bref_num_result_wait;
sescmd_cursor_t bref_sescmd_cur;
GWBUF* bref_pending_cmd; /*< For stmt which can't be routed due active sescmd execution */
@ -267,6 +269,9 @@ struct router_client_session {
#endif
struct router_instance *router; /*< The router instance */
struct router_client_session* next;
HASHTABLE* dbhash;
bool hash_init;
GWBUF* queue;
#if defined(SS_DEBUG)
skygw_chk_t rses_chk_tail;
#endif