git-svn-id: file:///svn/tokudb@4587 c7de825b-a66e-492c-adef-691d508d4ae1

Allocates room for at least 4 elements every time we convert from tree
to array (and vice versa).

git-svn-id: file:///svn/tokudb@4586 c7de825b-a66e-492c-adef-691d508d4ae1

Merged current progress into trunk

git-svn-id: file:///svn/tokudb@4581 c7de825b-a66e-492c-adef-691d508d4ae1

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Merge 'convert to array on rebalancing root' change

git-svn-id: file:///svn/tokudb@4576 c7de825b-a66e-492c-adef-691d508d4ae1

Merge initial version of array representation of omts into trunk

git-svn-id: file:///svn/tokudb@4574 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4546 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4545 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4544 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4543 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4541 c7de825b-a66e-492c-adef-691d508d4ae1

Fixes #907.


git-svn-id: file:///svn/tokudb@4524 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4521 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4514 c7de825b-a66e-492c-adef-691d508d4ae1

Use ybt->size field if ybt->ulen field is unset (for DB_DBT_REALLOC).

git-svn-id: file:///svn/tokudb@4505 c7de825b-a66e-492c-adef-691d508d4ae1

toku_db_set_* (the dbt setting functions)
no longer require atomicity for ENOMEM cases.
Also, in the case of realloc, we only alloc new memory if
the new size is larger than the old size, or the new size is less than
half of the old size.

Code has some simplifications due to lesser atomicity requirements.

Modified src/tests/test_db_dbt_mem_behavior.c to take into account
that DB_DBT_REALLOC now uses the ulen field.

git-svn-id: file:///svn/tokudb@4504 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4502 c7de825b-a66e-492c-adef-691d508d4ae1

Added test_838 to tests that should fail.

git-svn-id: file:///svn/tokudb@4501 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4500 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4493 c7de825b-a66e-492c-adef-691d508d4ae1

Implements DB->pre_acquire_table_lock
Also optimized lock tree for table write locks

git-svn-id: file:///svn/tokudb@4480 c7de825b-a66e-492c-adef-691d508d4ae1

Add DB->pre_acquire_table_lock to headers

git-svn-id: file:///svn/tokudb@4479 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4473 c7de825b-a66e-492c-adef-691d508d4ae1

Skip lock tree overhead (marshalling and calling)
when appropriate due to DB_PRELOCKED/DB_PRELOCKED_WRITE

git-svn-id: file:///svn/tokudb@4469 c7de825b-a66e-492c-adef-691d508d4ae1

Add DB_PRELOCKED_WRITE flag

git-svn-id: file:///svn/tokudb@4462 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4460 c7de825b-a66e-492c-adef-691d508d4ae1

So to use the lightweight cursors with the prelock one does:
{{{
./scanscan-tokudb --prelock --nohwc --lwc
}}}

Addresses #893.


git-svn-id: file:///svn/tokudb@4454 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4453 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4452 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4421 c7de825b-a66e-492c-adef-691d508d4ae1

git-svn-id: file:///svn/tokudb@4420 c7de825b-a66e-492c-adef-691d508d4ae1

Parameters to pre_lock are supposed to be const DBT*'s instead of DBT*'s.

git-svn-id: file:///svn/tokudb@4403 c7de825b-a66e-492c-adef-691d508d4ae1

Implement db->pre_acquire_read_lock(), db->dbt_pos_infty(), and db->dbt_neg_infty()
functions.

Example usage to lock entire table:
db->pre_acquire_read_lock(db, txn, db->dbt_neg_infty(), NULL, db->dbt_pos_infty(), NULL);
(Above is for db with no duplicates, i.e. primary index).

For db with duplicates:
db->pre_acquire_read_lock(db, txn, db->dbt_neg_infty(), db->dbt_neg_infty(), db->dbt_pos_infty(), db->dbt_pos_infty());

Will return same lock error codes as db calls do (when locks fail).
0 = success
DB_LOCK_NOTGRANTED = failed to obtain the lock.
We can theoretically sleep and try again here.

If you want to grab from DBT* A to infinity..
db->pre_acquire_read_lock(db, txn, A, NULL, db->dbt_pos_infty(), NULL);


git-svn-id: file:///svn/tokudb@4402 c7de825b-a66e-492c-adef-691d508d4ae1

Leaf boundary test now checks left to right and right to left.

git-svn-id: file:///svn/tokudb@4401 c7de825b-a66e-492c-adef-691d508d4ae1

Additional tests to verify we handle provdel leaf entries correctly
(when we need to cross between leaf boundaries.

git-svn-id: file:///svn/tokudb@4400 c7de825b-a66e-492c-adef-691d508d4ae1

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