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39 lines
1 KiB
Go
39 lines
1 KiB
Go
// +build windows
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package storage
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import (
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"os"
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"github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map"
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"golang.org/x/sys/windows"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map/os_overloads"
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)
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func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (*os.File, error) {
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mMap, exists := memory_map.FileMemoryMap[fileName]
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if !exists {
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if preallocate > 0 {
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glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)
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}
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if memoryMapSizeMB > 0 {
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file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT, 0644, true)
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memory_map.FileMemoryMap[fileName] = new(memory_map.MemoryMap)
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new_mMap := memory_map.FileMemoryMap[fileName]
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new_mMap.CreateMemoryMap(file, 1024*1024*uint64(memoryMapSizeMB))
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return file, e
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} else {
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file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT|windows.O_TRUNC, 0644, false)
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return file, e
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}
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} else {
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return mMap.File, nil
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}
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}
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