From d279ea44cedc355c5dc574d2fd6edfb5e2088410 Mon Sep 17 00:00:00 2001
From: Martin Kobetic <mkobetic@gmail.com>
Date: Fri, 9 May 2014 13:35:00 +0000
Subject: add asserts for detecting pgid high watermark overflow

---
 db.go | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'db.go')

diff --git a/db.go b/db.go
index d96a161..0b74621 100644
--- a/db.go
+++ b/db.go
@@ -705,6 +705,10 @@ func (m *meta) copy(dest *meta) {
 
 // write writes the meta onto a page.
 func (m *meta) write(p *page) {
+
+	_assert(m.root.root < m.pgid, "root bucket pgid (%d) above high water mark (%d)", m.root.root, m.pgid)
+	_assert(m.freelist < m.pgid, "freelist pgid (%d) above high water mark (%d)", m.freelist, m.pgid)
+
 	// Page id is either going to be 0 or 1 which we can determine by the transaction ID.
 	p.id = pgid(m.txid % 2)
 	p.flags |= metaPageFlag
-- 
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