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32 lines
894 B
32 lines
894 B
// +build windows
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package backend
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import (
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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) (BackendStorageFile, error) {
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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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if e != nil {
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return nil, e
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}
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return memory_map.NewMemoryMappedFile(file, memoryMapSizeMB), nil
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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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if e != nil {
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return nil, e
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}
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return NewDiskFile(file), nil
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}
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}
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