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Router has now capability value which currently tells whether router session expects stream or individual, complete statements. With read con

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nection router stream is used and with read/write split router individual statements are passed to router.
Added new function to ROUTER_OBJECT : uint8_t (*getCapabilities)(ROUTER *instance, void* router_session); which is implemented in every route
r.

Added support for multi-statement packets in rwsplit router. In other words, if network packet includes multiple mysql statements, they are separated and passed to router one by one.

Multi-packet statements (those which exceeds network packet boundaries) are _not_ supported yet.
This commit is contained in:
VilhoRaatikka
2014-03-11 23:12:11 +02:00
parent c28892323a
commit cb6a976555
13 changed files with 701 additions and 422 deletions
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10
server/include/router.h
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@ -35,6 +35,7 @@
#include <service.h>
#include <session.h>
#include <buffer.h>
#include <stdint.h>
/**
* The ROUTER handle points to module specific data, so the best we can do
@ -74,10 +75,13 @@ typedef struct router_object {
void (*diagnostics)(ROUTER *instance, DCB *dcb);
void (*clientReply)(ROUTER* instance, void* router_session, GWBUF* queue, DCB *backend_dcb);
void (*errorReply)(ROUTER* instance, void* router_session, char* message, DCB *backend_dcb, int action);
uint8_t (*getCapabilities)(ROUTER *instance, void* router_session);
} ROUTER_OBJECT;
/* Router commands */
#define ROUTER_DEFAULT 0 /**< Standard routing */
#define ROUTER_CHANGE_SESSION 1 /**< Route a change session */
typedef enum router_capability_t {
RCAP_TYPE_UNDEFINED = 0,
RCAP_TYPE_STMT_INPUT = (1 << 0),
RCAP_TYPE_PACKET_INPUT = (1 << 1)
} router_capability_t;
#endif