greenplumn lock_test 源码
greenplumn lock_test 代码
文件路径：/src/backend/storage/lmgr/test/lock_test.c
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include "cmockery.h"
#include "postgres.h"
#include "common/hashfn.h"
/* For RemoveLocalLock, we need to check if NULL is not passed to pfree */
#undef pfree
#define pfree(x) do { \
assert_true(x != NULL); \
free(x); \
} while(0)
#include "../lock.c"
/*
* MPP-18576: RemoveLocalLock should be aware lockOwners can be NULL
* in case of OOM after populating the hash entry.
*/
static void
test__RemoveLocalLock_Null(void **state)
{
HASHCTL info;
int hash_flags;
LOCALLOCKTAG localtag;
LOCALLOCK *locallock;
bool found;
info.keysize = sizeof(LOCALLOCKTAG);
info.entrysize = sizeof(LOCALLOCK);
info.hash = tag_hash;
hash_flags = (HASH_ELEM | HASH_FUNCTION);
LockMethodLocalHash = hash_create("LOCALLOCK hash",
128,
&info,
hash_flags);
/* Create a dummy local lock */
MemSet(&localtag, 0, sizeof(localtag));
localtag.lock.locktag_field1 = 1;
localtag.lock.locktag_field2 = 2;
localtag.lock.locktag_field3 = 3;
localtag.lock.locktag_field4 = 4;
localtag.mode = AccessShareLock;
locallock = (LOCALLOCK *) hash_search(LockMethodLocalHash,
(void *) &localtag,
HASH_ENTER, &found);
assert_false(found);
/* Assume lockOwners is NULL and we go into cleanup */
locallock->lockOwners = NULL;
RemoveLocalLock(locallock);
}
int
main(int argc, char* argv[])
{
cmockery_parse_arguments(argc, argv);
const UnitTest tests[] = {
unit_test(test__RemoveLocalLock_Null)
};
return run_tests(tests);
}
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