mirror of https://github.com/citusdata/citus.git
35 lines
680 B
C
35 lines
680 B
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* hash_helpers.c
|
|
* Helpers for dynahash.c style hash tables.
|
|
*
|
|
* Copyright (c) Citus Data, Inc.
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "postgres.h"
|
|
|
|
#include "distributed/hash_helpers.h"
|
|
#include "utils/hsearch.h"
|
|
|
|
|
|
/*
|
|
* Empty a hash, without destroying the hash table itself.
|
|
*/
|
|
void
|
|
hash_delete_all(HTAB *htab)
|
|
{
|
|
HASH_SEQ_STATUS status;
|
|
void *entry = NULL;
|
|
|
|
hash_seq_init(&status, htab);
|
|
while ((entry = hash_seq_search(&status)) != 0)
|
|
{
|
|
bool found = false;
|
|
|
|
hash_search(htab, entry, HASH_REMOVE, &found);
|
|
Assert(found);
|
|
}
|
|
}
|