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Commit72257f9

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simplehash: Additional tweaks to make specifying an allocator work.
Even if we don't emit definitions for SH_ALLOCATE and SH_FREE, westill need prototypes. The user can't define them before includingsimplehash.h because SH_TYPE isn't available yet.For the allocator to be able to access private_data, it needs tobecome an argument to SH_CREATE. Previously we relied on callersto set that after returning from SH_CREATE, but SH_CREATE callsSH_ALLOCATE before returning.Dilip Kumar, reviewed by me.
1 parent3f3d60d commit72257f9

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3 files changed

+10
-5
lines changed

3 files changed

+10
-5
lines changed

‎src/backend/executor/execGrouping.c‎

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -330,8 +330,7 @@ BuildTupleHashTable(int numCols, AttrNumber *keyColIdx,
330330
else
331331
hashtable->hash_iv=0;
332332

333-
hashtable->hashtab=tuplehash_create(tablecxt,nbuckets);
334-
hashtable->hashtab->private_data=hashtable;
333+
hashtable->hashtab=tuplehash_create(tablecxt,nbuckets,hashtable);
335334

336335
returnhashtable;
337336
}

‎src/backend/nodes/tidbitmap.c‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -244,7 +244,7 @@ tbm_create_pagetable(TIDBitmap *tbm)
244244
Assert(tbm->status!=TBM_HASH);
245245
Assert(tbm->pagetable==NULL);
246246

247-
tbm->pagetable=pagetable_create(tbm->mcxt,128);
247+
tbm->pagetable=pagetable_create(tbm->mcxt,128,NULL);
248248

249249
/* If entry1 is valid, push it into the hashtable */
250250
if (tbm->status==TBM_ONE_PAGE)

‎src/include/lib/simplehash.h‎

Lines changed: 8 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -137,7 +137,8 @@ typedef struct SH_ITERATOR
137137
}SH_ITERATOR;
138138

139139
/* externally visible function prototypes */
140-
SH_SCOPESH_TYPE*SH_CREATE(MemoryContextctx,uint32nelements);
140+
SH_SCOPESH_TYPE*SH_CREATE(MemoryContextctx,uint32nelements,
141+
void*private_data);
141142
SH_SCOPEvoidSH_DESTROY(SH_TYPE*tb);
142143
SH_SCOPEvoidSH_GROW(SH_TYPE*tb,uint32newsize);
143144
SH_SCOPESH_ELEMENT_TYPE*SH_INSERT(SH_TYPE*tb,SH_KEY_TYPEkey,bool*found);
@@ -280,6 +281,10 @@ SH_ENTRY_HASH(SH_TYPE *tb, SH_ELEMENT_TYPE * entry)
280281
#endif
281282
}
282283

284+
/* default memory allocator function */
285+
staticinlinevoid*SH_ALLOCATE(SH_TYPE*type,Sizesize);
286+
staticinlinevoidSH_FREE(SH_TYPE*type,void*pointer);
287+
283288
#ifndefSH_USE_NONDEFAULT_ALLOCATOR
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285290
/* default memory allocator function */
@@ -309,13 +314,14 @@ SH_FREE(SH_TYPE *type, void *pointer)
309314
* the passed-in context.
310315
*/
311316
SH_SCOPESH_TYPE*
312-
SH_CREATE(MemoryContextctx,uint32nelements)
317+
SH_CREATE(MemoryContextctx,uint32nelements,void*private_data)
313318
{
314319
SH_TYPE*tb;
315320
uint64size;
316321

317322
tb=MemoryContextAllocZero(ctx,sizeof(SH_TYPE));
318323
tb->ctx=ctx;
324+
tb->private_data=private_data;
319325

320326
/* increase nelements by fillfactor, want to store nelements elements */
321327
size=Min((double)SH_MAX_SIZE, ((double)nelements) /SH_FILLFACTOR);

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