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Add getCapabilities to filters

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Common capabilities are now defined in routing.h. The common
capabilities can be defined using bits 0 - 15.

Router capabilities are defined using bits 16-31 and filter
capabilities (should there ever be such) using bits 32-47.

So, to find out the capabilities of a service you only need to
OR the capabilities of the router and all filters together.

For instance, if a single filter needs statement based routing,
then that is what is done.
This commit is contained in:
Johan Wikman
2016-10-21 14:14:50 +03:00
parent d50acd02e4
commit 59a4152d8a
18 changed files with 240 additions and 8 deletions
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18
include/maxscale/router.h
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@ -30,6 +30,7 @@
*/
#include <maxscale/cdefs.h>
#include <maxscale/routing.h>
#include <maxscale/service.h>
#include <maxscale/session.h>
#include <maxscale/buffer.h>
@ -93,14 +94,19 @@ typedef struct router_object
#define ROUTER_VERSION { 2, 0, 0 }
/**
* Router capability type. Indicates what kind of input router accepts.
* Specifies capabilities specific for routers. Common capabilities
* are defined by @c routing_capability_t.
*
* @see routing_capability_t
*
* @note The values of the capabilities here *must* be between 0x00010000
* and 0x80000000, that is, bits 16 to 31.
*/
typedef enum router_capability_t
typedef enum router_capability
{
RCAP_TYPE_UNDEFINED = 0x00,
RCAP_TYPE_STMT_INPUT = 0x01, /**< Statement per buffer */
RCAP_TYPE_PACKET_INPUT = 0x02, /**< Data as it was read from DCB */
RCAP_TYPE_NO_RSESSION = 0x04 /**< Router does not use router sessions */
RCAP_TYPE_NO_RSESSION = 0x00010000, /**< Router does not use router sessions */
RCAP_TYPE_NO_USERS_INIT = 0x00020000, /**< Prevent the loading of authenticator
users when the service is started */
} router_capability_t;
MXS_END_DECLS