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Allow servers to be added and removed from services

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Servers can now be added and removed from services which allows routers to
use them with new sessions. The routers don't fully use the new
functionality in the server references which prevents new servers from
being taken into use.
This commit is contained in:
Markus Makela
2016-11-03 15:50:43 +02:00
parent 6fe9fda46e
commit 8982ee3db2
3 changed files with 107 additions and 21 deletions
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3
include/maxscale/service.h
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@ -101,6 +101,7 @@ typedef struct server_ref_t
SERVER* server; /**< The actual server */
int weight; /**< Weight of this server */
int connections; /**< Number of connections created through this reference */
bool active; /**< Whether this reference is valid and in use*/
} SERVER_REF;
#define SERVICE_MAX_RETRY_INTERVAL 3600 /*< The maximum interval between service start retries */
@ -146,6 +147,7 @@ typedef struct service
void *router_instance; /**< The router instance for this service */
char *version_string; /** version string for this service listeners */
SERVER_REF *dbref; /** server references */
int n_dbref; /** Number of server references */
SERVICE_USER credentials; /**< The cedentials of the service user */
SPINLOCK spin; /**< The service spinlock */
SERVICE_STATS stats; /**< The service statistics */
@ -194,6 +196,7 @@ extern int serviceAddProtocol(SERVICE *service, char *name, char *protocol,
extern int serviceHasProtocol(SERVICE *service, const char *protocol,
const char* address, unsigned short port);
extern void serviceAddBackend(SERVICE *, SERVER *);
extern void serviceRemoveBackend(SERVICE *, const SERVER *);
extern int serviceHasBackend(SERVICE *, SERVER *);
extern void serviceAddRouterOption(SERVICE *, char *);
extern void serviceClearRouterOptions(SERVICE *);