LCOV - differential code coverage report
Current view: top level - src/include/fe_utils - parallel_slot.h (source / functions) Coverage Total Hit CBC
Current: Differential Code Coverage HEAD vs 15 Lines: 100.0 % 8 8 8
Current Date: 2023-04-08 17:13:01 Functions: 100.0 % 2 2 2
Baseline: 15 Line coverage date bins:
Baseline Date: 2023-04-08 15:09:40 (240..) days: 100.0 % 8 8 8
Legend: Lines: hit not hit Function coverage date bins:
(240..) days: 100.0 % 2 2 2

 Age         Owner                  TLA  Line data    Source code
                                  1                 : /*-------------------------------------------------------------------------
                                  2                 :  *
                                  3                 :  *  parallel_slot.h
                                  4                 :  *      Parallel support for bin/scripts/
                                  5                 :  *
                                  6                 :  *  Copyright (c) 2003-2023, PostgreSQL Global Development Group
                                  7                 :  *
                                  8                 :  *  src/include/fe_utils/parallel_slot.h
                                  9                 :  *
                                 10                 :  *-------------------------------------------------------------------------
                                 11                 :  */
                                 12                 : #ifndef PARALLEL_SLOT_H
                                 13                 : #define PARALLEL_SLOT_H
                                 14                 : 
                                 15                 : #include "fe_utils/connect_utils.h"
                                 16                 : #include "libpq-fe.h"
                                 17                 : 
                                 18                 : typedef bool (*ParallelSlotResultHandler) (PGresult *res, PGconn *conn,
                                 19                 :                                            void *context);
                                 20                 : 
                                 21                 : typedef struct ParallelSlot
                                 22                 : {
                                 23                 :     PGconn     *connection;     /* One connection */
                                 24                 :     bool        inUse;          /* Is the slot being used? */
                                 25                 : 
                                 26                 :     /*
                                 27                 :      * Prior to issuing a command or query on 'connection', a handler callback
                                 28                 :      * function may optionally be registered to be invoked to process the
                                 29                 :      * results, and context information may optionally be registered for use
                                 30                 :      * by the handler.  If unset, these fields should be NULL.
                                 31                 :      */
                                 32                 :     ParallelSlotResultHandler handler;
                                 33                 :     void       *handler_context;
                                 34                 : } ParallelSlot;
                                 35                 : 
                                 36                 : typedef struct ParallelSlotArray
                                 37                 : {
                                 38                 :     int         numslots;
                                 39                 :     ConnParams *cparams;
                                 40                 :     const char *progname;
                                 41                 :     bool        echo;
                                 42                 :     const char *initcmd;
                                 43                 :     ParallelSlot slots[FLEXIBLE_ARRAY_MEMBER];
                                 44                 : } ParallelSlotArray;
                                 45                 : 
                                 46                 : static inline void
  793 rhaas                      47 CBC        8432 : ParallelSlotSetHandler(ParallelSlot *slot, ParallelSlotResultHandler handler,
                                 48                 :                        void *context)
                                 49                 : {
                                 50            8432 :     slot->handler = handler;
                                 51            8432 :     slot->handler_context = context;
                                 52            8432 : }
                                 53                 : 
                                 54                 : static inline void
                                 55            8426 : ParallelSlotClearHandler(ParallelSlot *slot)
                                 56                 : {
                                 57            8426 :     slot->handler = NULL;
                                 58            8426 :     slot->handler_context = NULL;
                                 59            8426 : }
                                 60                 : 
                                 61                 : extern ParallelSlot *ParallelSlotsGetIdle(ParallelSlotArray *sa,
                                 62                 :                                           const char *dbname);
                                 63                 : 
                                 64                 : extern ParallelSlotArray *ParallelSlotsSetup(int numslots, ConnParams *cparams,
                                 65                 :                                              const char *progname, bool echo,
                                 66                 :                                              const char *initcmd);
                                 67                 : 
                                 68                 : extern void ParallelSlotsAdoptConn(ParallelSlotArray *sa, PGconn *conn);
                                 69                 : 
                                 70                 : extern void ParallelSlotsTerminate(ParallelSlotArray *sa);
                                 71                 : 
                                 72                 : extern bool ParallelSlotsWaitCompletion(ParallelSlotArray *sa);
                                 73                 : 
                                 74                 : extern bool TableCommandResultHandler(PGresult *res, PGconn *conn,
                                 75                 :                                       void *context);
                                 76                 : 
                                 77                 : #endif                          /* PARALLEL_SLOT_H */
        

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