//delete holder and object (take)
void testRollback(void) {
//save new test data
int ret = put1(0, OESTORE_UNLOCKED, "txn_two");
assert(ret == 0);
//start a txn
OESTORE_TXN oetxn;
ret = OeStore_start_txn(store, 10000, &oetxn, arena);
assert(ret == 0);
OeStoreHolder holder;
ret = take1(oetxn.tid, &holder, "txn_two");
DataObject data = OeStoreHolder_get_data(holder);
assert(!ret);
assert(holder);
assert(strcmp(DataObject_get_bytes( data ), "txn_nonesense") == 0);
Iterator iter = DataObject_iterator(data, true);
Iterator_next(iter); //0
assert(strcmp(Iterator_next( iter ), "txn_two") == 0);
//make sure it isn't visible anymore
OeStoreHolder holder2;
ret = get1(&holder2, "txn_two");
OE_ERR(NULL, "get1: %s\n", db_strerror(ret));
assert(ret == OE_STORE_ITEM_NOTFOUND);
ret = take1(0, &holder2, "txn_two");
OE_ERR(NULL, "take1: %s\n", db_strerror(ret));
assert(ret == OE_STORE_ITEM_NOTFOUND);
//rollback the txn
ret = OeStore_update_txn(store, oetxn.tid, 0, OESTORE_TXN_ROLLED_BACK, arena, -1);
OE_ERR(NULL, "updatetxn: %s\n", db_strerror(ret));
assert(ret == 0);
//make sure it IS visible again after rollback of take
OeStoreHolder holder4;
ret = get1(&holder4, "txn_two");
DataObject data4 = OeStoreHolder_get_data(holder4);
OE_ERR(NULL, "get1: %s\n", db_strerror(ret));
assert(!ret);
iter = DataObject_iterator(data4, true);
Iterator_next(iter); //0
assert(strcmp(Iterator_next( iter ), "txn_two") == 0);
OeStoreHolder holder3 = NULL;
OeStore_start_txn(store, 10000, &oetxn, arena);
ret = take1(oetxn.tid, &holder3, "txn_two"); //and clean up for next tests...
DataObject data3 = OeStoreHolder_get_data(holder3);
OE_ERR(NULL, "take1: %s\n", db_strerror(ret));
assert(!ret);
iter = DataObject_iterator(data3, true);
Iterator_next(iter); //0
assert(strcmp(Iterator_next( iter ), "txn_two") == 0);
OeStore_update_txn(store, oetxn.tid, 0, OESTORE_TXN_COMMITTED, arena, 1);
}
// read/modify/write
void testCommitRMW(void) {
//save new test data
int ret = put1(0, OESTORE_UNLOCKED, "three");
assert(ret == 0);
//start a txn
OESTORE_TXN oetxn;
ret = OeStore_start_txn(store, 10000, &oetxn, arena);
assert(ret == 0);
//take the new data
OeStoreHolder holder;
ret = take1(oetxn.tid, &holder, "three");
DataObject data = OeStoreHolder_get_data(holder);
assert(!ret);
Iterator iter = DataObject_iterator(data, true);
assert(strcmp(Iterator_next( iter ), "key") == 0);
assert(strcmp(Iterator_next( iter ), "three") == 0);
assert(strcmp(DataObject_get_bytes( data ), "txn_nonesense") == 0);
//make sure it isn't visible anymore
OeStoreHolder holder2 = NULL;
ret = get1( &holder2, "three");
assert(ret == OE_STORE_ITEM_NOTFOUND);
//put the replacement item into the space
ret = put1(oetxn.tid, OESTORE_WRITE_LOCK, "four");
assert(!ret);
//commit the txn
ret = OeStore_update_txn(store, oetxn.tid, 0,
OESTORE_TXN_COMMITTED, arena, 1); //wrong enlisted count
assert(ret);
ret = OeStore_update_txn(store, oetxn.tid, 0,
OESTORE_TXN_COMMITTED, arena, 2);//right enlisted count
assert(!ret);
//make sure four IS visible after commit
OeStoreHolder holder3;
OeStore_start_txn(store, 10000, &oetxn, arena);
ret = take1(oetxn.tid, &holder3, "four"); //and clean up for next tests...
DataObject data3 = OeStoreHolder_get_data(holder3);
OeStore_update_txn(store, oetxn.tid, 0, OESTORE_TXN_COMMITTED, arena, -1);
assert(!ret);
iter = DataObject_iterator(data3, true);
assert(strcmp(Iterator_next( iter ), "key") == 0);
assert(strcmp(Iterator_next( iter ), "four") == 0);
assert(strcmp(DataObject_get_bytes( data3 ), "txn_nonesense") == 0);
//make sure three is NOT visible
OeStoreHolder holder4;
ret = get1(&holder4, "three");
assert(ret == OE_STORE_ITEM_NOTFOUND);
}
//look up holder
void testCommitTake(void) {
//start a txn
OESTORE_TXN oetxn;
int ret = OeStore_start_txn(store, 10000, &oetxn, arena);
assert(ret == 0);
OeStoreHolder holder;
ret = take1(oetxn.tid, &holder, "txn_one");
DataObject data = OeStoreHolder_get_data(holder);
assert(!ret);
assert(strcmp(DataObject_get_bytes( data ), "txn_nonesense") == 0);
Iterator iter = DataObject_iterator(data, true);
Iterator_next(iter);//0
assert(strcmp(Iterator_next( iter ), "txn_one") == 0);
//make sure it isn't visible anymore
OeStoreHolder holder2;
ret = get1( &holder2, "txn_one");
assert(ret == OE_STORE_ITEM_NOTFOUND);
//commit the txn
ret = OeStore_update_txn(store, oetxn.tid, 0, OESTORE_TXN_COMMITTED, arena, -1);
assert(ret == 0);
//make sure it IS STILL not visible after commit of take
OeStoreHolder holder3;
ret = get1( &holder3, "txn_one");
assert(ret == OE_STORE_ITEM_NOTFOUND);
}
int main(void)
{
//Note: x%3 == 0 exactly when x evenly divisible by 3
// and x%5 == 0 when x divisible by 5
int n;
n=1000;
printf("The sum through %d is...\nTake1: %d\nTake2: %d\nTake3: %d\n",
n, take1(n), take2(n), take3(n));
return 0;
}
