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move WAL lock

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Signed-off-by: Fabian Reinartz <freinartz@google.com>
This commit is contained in:
Fabian Reinartz 2018-05-29 11:46:06 -04:00
parent d951140ab8
commit 3f538817f8
1 changed files with 2 additions and 3 deletions
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5
wal/wal.go
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@ -429,6 +429,8 @@ func (w *WAL) pagesPerSegment() int {
// Log writes the records into the log. // Log writes the records into the log.
// Multiple records can be passed at once to reduce writes and increase throughput. // Multiple records can be passed at once to reduce writes and increase throughput.
func (w *WAL) Log(recs ...[]byte) error { func (w *WAL) Log(recs ...[]byte) error {
w.mtx.Lock()
defer w.mtx.Unlock()
// Callers could just implement their own list record format but adding // Callers could just implement their own list record format but adding
// a bit of extra logic here frees them from that overhead. // a bit of extra logic here frees them from that overhead.
for i, r := range recs { for i, r := range recs {
@ -442,9 +444,6 @@ func (w *WAL) Log(recs ...[]byte) error {
// log writes rec to the log and forces a flush of the current page if its // log writes rec to the log and forces a flush of the current page if its
// the final record of a batch. // the final record of a batch.
func (w *WAL) log(rec []byte, final bool) error { func (w *WAL) log(rec []byte, final bool) error {
w.mtx.Lock()
defer w.mtx.Unlock()
// If the record is too big to fit within pages in the current // If the record is too big to fit within pages in the current
// segment, terminate the active segment and advance to the next one. // segment, terminate the active segment and advance to the next one.
// This ensures that records do not cross segment boundaries. // This ensures that records do not cross segment boundaries.