| /* |
| * backoff.h |
| * |
| * Created on: Oct 20, 2009 |
| * Author: siva |
| */ |
| |
| #ifndef BACKOFF_H_ |
| #define BACKOFF_H_ |
| |
| #include "fmgr.h" |
| |
| /* GUCs */ |
| extern bool gp_enable_resqueue_priority; |
| extern int gp_resqueue_priority_local_interval; |
| extern int gp_resqueue_priority_sweeper_interval; |
| extern int gp_resqueue_priority_inactivity_timeout; |
| extern int gp_resqueue_priority_grouping_timeout; |
| extern double gp_resqueue_priority_cpucores_per_segment; |
| extern char* gp_resqueue_priority_default_value; |
| |
| extern void BackoffBackendEntryInit(int sessionid, int commandcount, Oid queueId); |
| extern void BackoffBackendEntryExit(void); |
| extern void BackoffStateInit(void); |
| extern Datum gp_adjust_priority_int(PG_FUNCTION_ARGS); |
| extern Datum gp_adjust_priority_value(PG_FUNCTION_ARGS); |
| extern Datum gp_list_backend_priorities(PG_FUNCTION_ARGS); |
| |
| extern void BackoffSweeperMain(Datum main_arg); |
| extern bool BackoffSweeperStartRule(Datum main_arg); |
| |
| /* needed by metrics_collector */ |
| extern char *BackoffPriorityIntToValue(int weight); |
| /* needed by metrics_collector */ |
| extern int ResourceQueueGetPriorityWeight(Oid queueId); |
| |
| |
| #endif /* BACKOFF_H_ */ |
