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refactor memory mapped file into backend storage

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This commit is contained in:
Chris Lu
2019-11-09 00:10:59 -08:00
parent c5c1d83d91
commit 85f8649320
10 changed files with 124 additions and 122 deletions
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36
weed/storage/volume_create_windows.go
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@@ -3,36 +3,26 @@
package storage
import (
"os"
"github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map"
"golang.org/x/sys/windows"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/storage/backend"
"github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map/os_overloads"
)
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (*os.File, error) {
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.DataStorageBackend, error) {
mMap, exists := memory_map.FileMemoryMap[fileName]
if !exists {
if preallocate > 0 {
glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)
}
if memoryMapSizeMB > 0 {
file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT, 0644, true)
memory_map.FileMemoryMap[fileName] = new(memory_map.MemoryMap)
new_mMap := memory_map.FileMemoryMap[fileName]
new_mMap.CreateMemoryMap(file, 1024*1024*uint64(memoryMapSizeMB))
return file, e
} else {
file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT|windows.O_TRUNC, 0644, false)
return file, e
}
} else {
return mMap.File, nil
if preallocate > 0 {
glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)
}
if memoryMapSizeMB > 0 {
file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT, 0644, true)
return memory_map.NewMemoryMappedFile(file, memoryMapSizeMB), e
} else {
file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT|windows.O_TRUNC, 0644, false)
return backend.NewDiskFile(file), e
}
}