This commit adds an explicit DefaultOptions variable for additional documentation.
Open() can still be passed a nil options which will cause options to be change to
the DefaultOptions variable. This change also allows options to be set globally for
an application if more than one database is being opened in a process.
This commit also moves all errors to errors.go so that the godoc groups them together.
This commit changes NextSequence() to return a uint64 instead of an int. This also
removes the ErrSequenceOverflow error condition since overflowing a uint64 is unlikely.
Fixes#39.
This commit changes Open() to provide an additional Options argument. The options
argument currently only has a Timeout which will cause the Open() to return
ErrTimeout if a file lock cannot be obtained in time.
Fixes#207.
This commit reverts merge-split and fixes the node.split() to do a multi-page split. This issue
caused problems with bulk loading because it would split into a small page and a very large page.
The very large page, in turn, would be an arbitrary size so when it was freed later it would be
difficult to reuse and would cause serious fragmentation issues.
This commit adds Windows support to Bolt. Windows memory maps return an address instead of a byte
slice so the DB.data field had to be refactored to be a pointer to a large byte array.
This commit changes the maxNodesPerPage constant so that it is essentially unlimited.
Previously, a single large transaction could create more nodes than the mock array
could handle.
Fixes#188.
This commit fixes a bug with seeks where seeking to a key between the end
of a page and the beginning of the next page causes it to return nil. This
was fixed by calling Cursor.next() when the cursor ends up between pages.
This also changes Cursor.Next() so that calling Next() at the end of a bucket
leaves the cursor at the end instead of zeroing out the stack.
Fixes#186.
/cc @PreetamJinka
This commit fixes a bug where deletions that caused merge-left rebalances were updating
the parent node which caused a node to "reappear" even after it had been deleted. This was
fixed in merge-right rebalances a while ago but merge-left is less frequent so it was
missed until now.
Many thanks to Jordan Sherer (@jsherer) for finding and reporting the bug.
This commit adds the ability for Bolt to fallback to using a regular file open if Tx.Copy()
errors while opening with O_DIRECT. This only affects Linux.
This commit changes the node.split() functionality to check if the next node has
available space and, if so, it will merge the newly split keys into the next node.
Previously, keys could be continually put into the left side of a split causing that
first half to split off small right side nodes. This was especially problematic with
databases with a high fill percent.
