mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
46 lines
929 B
Go
46 lines
929 B
Go
package storage
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import (
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"encoding/binary"
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"log"
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"os"
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"testing"
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"github.com/chrislusf/seaweedfs/go/glog"
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)
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func TestMemoryUsage(t *testing.T) {
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indexFile, ie := os.OpenFile("../../test/sample.idx", os.O_RDWR|os.O_RDONLY, 0644)
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if ie != nil {
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log.Fatalln(ie)
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}
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LoadNewNeedleMap(indexFile)
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}
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func LoadNewNeedleMap(file *os.File) CompactMap {
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m := NewCompactMap()
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bytes := make([]byte, 16*1024)
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count, e := file.Read(bytes)
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if count > 0 {
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fstat, _ := file.Stat()
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glog.V(0).Infoln("Loading index file", fstat.Name(), "size", fstat.Size())
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}
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for count > 0 && e == nil {
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for i := 0; i < count; i += 16 {
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key := binary.BigEndian.Uint64(bytes[i : i+8])
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offset := binary.BigEndian.Uint32(bytes[i+8 : i+12])
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size := binary.BigEndian.Uint32(bytes[i+12 : i+16])
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if offset > 0 {
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m.Set(Key(key), offset, size)
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} else {
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//delete(m, key)
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}
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}
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count, e = file.Read(bytes)
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}
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return m
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}
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