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Merge pull request #218 from benbjohnson/fix-win 

Fix Windows mmap sizing.
master
Ben Johnson 2014-07-10 07:35:40 -06:00
parent d9a0f51bee e903703e61
commit ca5f582710
2 changed files with 3 additions and 2 deletions
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2
db.go
View File

@ -212,7 +212,7 @@ func (db *DB) munmap() error {
// mmapSize determines the appropriate size for the mmap given the current size
// of the database. The minimum size is 4MB and doubles until it reaches 1GB.
func (db *DB) mmapSize(size int) int {
if size < minMmapSize {
if size <= minMmapSize {
return minMmapSize
} else if size < maxMmapStep {
size *= 2

3
db_test.go
View File

@ -297,7 +297,8 @@ func TestDB_mmapSize(t *testing.T) {
assert.Equal(t, db.mmapSize(0), minMmapSize)
assert.Equal(t, db.mmapSize(16384), minMmapSize)
assert.Equal(t, db.mmapSize(minMmapSize-1), minMmapSize)
assert.Equal(t, db.mmapSize(minMmapSize), minMmapSize*2)
assert.Equal(t, db.mmapSize(minMmapSize), minMmapSize)
assert.Equal(t, db.mmapSize(minMmapSize+1), (minMmapSize*2)+4096)
assert.Equal(t, db.mmapSize(10000000), 20000768)
assert.Equal(t, db.mmapSize((1<<30)-1), 2147483648)
assert.Equal(t, db.mmapSize(1<<30), 1<<31)