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Addition of session filter tracking in order to allow the show session

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command to call the diagnostic entries points of the filters in the
session.

Slight improvements to the two example filters and a fix to the
trim routine.
This commit is contained in:
Mark Riddoch
2014-06-02 10:56:50 +01:00
parent 8d55be4b23
commit 857ae25570
5 changed files with 186 additions and 25 deletions
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16
server/include/session.h
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@ -44,6 +44,7 @@
struct dcb;
struct service;
struct filter_def;
/**
* The session statistics structure
@ -69,9 +70,20 @@ typedef enum {
typedef struct {
void *instance;
void *session;
int (*routeQuery)(void *instance, void *router_session, GWBUF *queue);
int (*routeQuery)(void *instance,
void *router_session, GWBUF *queue);
} DOWNSTREAM;
/**
* Structure used to track the filter instances and sessions of the filters
* that are in use within a session.
*/
typedef struct {
struct filter_def
*filter;
void *instance;
void *session;
} SESSION_FILTER;
/**
* The session status block
@ -91,6 +103,8 @@ typedef struct session {
void *router_session;/**< The router instance data */
SESSION_STATS stats; /**< Session statistics */
struct service *service; /**< The service this session is using */
int n_filters; /**< Number of filter sessions */
SESSION_FILTER *filters; /**< The filters in use within this session */
DOWNSTREAM head; /**< Head of the filter chain */
struct session *next; /**< Linked list of all sessions */
int refcount; /**< Reference count on the session */