mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-21 06:57:51 +08:00
46 lines
937 B
Go
46 lines
937 B
Go
package storage
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"testing"
|
|
|
|
"github.com/chrislusf/seaweedfs/go/glog"
|
|
"github.com/chrislusf/seaweedfs/go/util"
|
|
)
|
|
|
|
func TestMemoryUsage(t *testing.T) {
|
|
|
|
indexFile, ie := os.OpenFile("../../test/sample.idx", os.O_RDWR|os.O_RDONLY, 0644)
|
|
if ie != nil {
|
|
log.Fatalln(ie)
|
|
}
|
|
LoadNewNeedleMap(indexFile)
|
|
|
|
}
|
|
|
|
func LoadNewNeedleMap(file *os.File) CompactMap {
|
|
m := NewCompactMap()
|
|
bytes := make([]byte, 16*1024)
|
|
count, e := file.Read(bytes)
|
|
if count > 0 {
|
|
fstat, _ := file.Stat()
|
|
glog.V(0).Infoln("Loading index file", fstat.Name(), "size", fstat.Size())
|
|
}
|
|
for count > 0 && e == nil {
|
|
for i := 0; i < count; i += 16 {
|
|
key := util.BytesToUint64(bytes[i : i+8])
|
|
offset := util.BytesToUint32(bytes[i+8 : i+12])
|
|
size := util.BytesToUint32(bytes[i+12 : i+16])
|
|
if offset > 0 {
|
|
m.Set(Key(key), offset, size)
|
|
} else {
|
|
//delete(m, key)
|
|
}
|
|
}
|
|
|
|
count, e = file.Read(bytes)
|
|
}
|
|
return m
|
|
}
|