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43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
//go:build windows
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// +build windows
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package local
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import (
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"context"
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"fmt"
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"syscall"
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"unsafe"
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"github.com/rclone/rclone/fs"
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)
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var getFreeDiskSpace = syscall.NewLazyDLL("kernel32.dll").NewProc("GetDiskFreeSpaceExW")
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// About gets quota information
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func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
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var available, total, free int64
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root, e := syscall.UTF16PtrFromString(f.root)
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if e != nil {
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return nil, fmt.Errorf("failed to read disk usage: %w", e)
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}
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_, _, e1 := getFreeDiskSpace.Call(
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uintptr(unsafe.Pointer(root)),
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uintptr(unsafe.Pointer(&available)), // lpFreeBytesAvailable - for this user
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uintptr(unsafe.Pointer(&total)), // lpTotalNumberOfBytes
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uintptr(unsafe.Pointer(&free)), // lpTotalNumberOfFreeBytes
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)
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if e1 != syscall.Errno(0) {
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return nil, fmt.Errorf("failed to read disk usage: %w", e1)
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}
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usage := &fs.Usage{
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Total: fs.NewUsageValue(total), // quota of bytes that can be used
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Used: fs.NewUsageValue(total - free), // bytes in use
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Free: fs.NewUsageValue(available), // bytes which can be uploaded before reaching the quota
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}
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return usage, nil
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}
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// check interface
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var _ fs.Abouter = &Fs{}
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