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Only use truncate flag when creating non memory map files, rename and use memory map size for reserving max file size

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This commit is contained in:
j.laycock 2019-09-05 11:46:12 +01:00
parent f6146d6ad2
commit 5a6dfb05fc
1 changed files with 13 additions and 9 deletions
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22
weed/storage/volume_create_windows.go
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@ -12,22 +12,26 @@ import (
"github.com/joeslay/seaweedfs/weed/os_overloads"
)
func createVolumeFile(fileName string, preallocate int64, useMemoryMap uint32) (*os.File, error) {
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (*os.File, error) {
mMap, exists := memory_map.FileMemoryMap[fileName]
if !exists {
file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT, 0644, useMemoryMap > 0)
if useMemoryMap > 0 {
memory_map.FileMemoryMap[fileName] = new(memory_map.MemoryMap)
new_mMap := memory_map.FileMemoryMap[fileName]
new_mMap.CreateMemoryMap(file, 1024*1024*1024*2)
}
if preallocate > 0 {
glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)
}
return file, e
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
}