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MXS-1249: Add function for getting the "version" of a service

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The behaviour of the query classifier needs to change depending
on the version of the servers of a service. With this function
"some" version of the service can be obtained.
This commit is contained in:
Johan Wikman
2017-06-16 15:36:13 +03:00
parent c94d9c76fb
commit b8702b8d95
2 changed files with 112 additions and 0 deletions
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25
include/maxscale/service.h
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@ -355,4 +355,29 @@ static inline uint64_t service_get_capabilities(const SERVICE *service)
return service->capabilities;
}
typedef enum service_version_which_t
{
SERVICE_VERSION_ANY, /*< Any version of the servers of a service. */
SERVICE_VERSION_MIN, /*< The minimum version. */
SERVICE_VERSION_MAX, /*< The maximum version. */
} service_version_which_t;
/**
* Return the version of the service. The returned version can be
*
* - the version of any (in practice the first) server associated
* with the service,
* - the smallest version of any of the servers associated with
* the service, or
* - the largest version of any of the servers associated with
* the service.
*
* @param service The service.
* @param which Which version.
* @param version On output contains the version of the service.
*/
void service_get_version(const SERVICE *service,
service_version_which_t which,
SERVER_VERSION* version);
MXS_END_DECLS