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Reset buffer size when reused

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The buffers data slice size needs to be reset to 0
before it can be reused. Also, buffers that come from
the archive should not be reused as they might have
strange capacities.
This commit is contained in:
Lou Knauer 2021-12-02 12:53:49 +01:00
parent fee0061172
commit becf41f98c
1 changed files with 7 additions and 6 deletions
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11
memstore.go
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@ -10,7 +10,7 @@ import (
// in the buffer chain will be created if needed so that no copying // in the buffer chain will be created if needed so that no copying
// of data or reallocation needs to happen on writes. // of data or reallocation needs to happen on writes.
const ( const (
BUFFER_CAP int = 1024 BUFFER_CAP int = 512
) )
// So that we can reuse allocations // So that we can reuse allocations
@ -46,6 +46,7 @@ func newBuffer(ts, freq int64) *buffer {
b.prev = nil b.prev = nil
b.next = nil b.next = nil
b.archived = false b.archived = false
b.data = b.data[:0]
return b return b
} }
@ -152,11 +153,11 @@ func (b *buffer) free(t int64) (int, error) {
} }
n += 1 n += 1
b.frequency = 0 // Buffers that come from the
b.start = 0 // archive should not be reused.
b.next = nil if cap(b.data) == BUFFER_CAP {
b.prev = nil
bufferPool.Put(b) bufferPool.Put(b)
}
b = prev b = prev
} }
return n, nil return n, nil