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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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17
server/modules/routing/readconnroute.c
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@ -106,6 +106,8 @@ static void errorReply(
char *message,
DCB *backend_dcb,
int action);
static uint8_t getCapabilities (ROUTER* inst, void* router_session);
/** The module object definition */
static ROUTER_OBJECT MyObject = {
@ -116,7 +118,8 @@ static ROUTER_OBJECT MyObject = {
routeQuery,
diagnostics,
clientReply,
errorReply
errorReply,
getCapabilities
};
static bool rses_begin_locked_router_action(
@ -379,6 +382,8 @@ int i;
return NULL;
}
client_rses->rses_capabilities = RCAP_TYPE_PACKET_INPUT;
/*
* We now have the server with the least connections.
* Bump the connection count for this server
@ -668,7 +673,7 @@ static void
errorReply(
ROUTER *instance,
void *router_session,
char *message,
char *message,
DCB *backend_dcb,
int action)
{
@ -737,3 +742,11 @@ static void rses_end_locked_router_action(
CHK_CLIENT_RSES(rses);
spinlock_release(&rses->rses_lock);
}
static uint8_t getCapabilities(
ROUTER* inst,
void* router_session)
{
return 0;
}