diff options
Diffstat (limited to 'freelist.go')
| -rw-r--r-- | freelist.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/freelist.go b/freelist.go index a236079..2fa4a94 100644 --- a/freelist.go +++ b/freelist.go @@ -70,12 +70,14 @@ func (f *freelist) allocate(n int) pgid { // free releases a page and its overflow for a given transaction id. // If the page is already free then a panic will occur. func (f *freelist) free(txid txid, p *page) { + warn("free:", txid, p.id, p.overflow) _assert(p.id > 1, "cannot free page 0 or 1: %d", p.id) // Verify that page is not already free. minid, maxid := p.id, p.id+pgid(p.overflow) for _, id := range f.ids { if id >= minid && id <= maxid { + warn(" ‡", id, "|", minid, maxid) panic(fmt.Sprintf("page %d already freed in tx", id)) } } @@ -90,6 +92,9 @@ func (f *freelist) free(txid txid, p *page) { // Free page and all its overflow pages. var ids = f.pending[txid] for i := 0; i < int(p.overflow+1); i++ { + if p.id+pgid(i) == 55 { + warn(" •", txid, p.id+pgid(i)) + } ids = append(ids, p.id+pgid(i)) } f.pending[txid] = ids |