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27 lines
661 B
27 lines
661 B
//go:build windows
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package logstorage
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import (
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"fmt"
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"syscall"
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"unsafe"
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)
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var getLogDiskFreeSpaceEx = syscall.NewLazyDLL("kernel32.dll").NewProc("GetDiskFreeSpaceExW")
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func filesystemFreeBytes(path string) (int64, error) {
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pathUTF16, err := syscall.UTF16PtrFromString(path)
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if err != nil {
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return 0, err
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}
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var available uint64
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result, _, callErr := getLogDiskFreeSpaceEx.Call(uintptr(unsafe.Pointer(pathUTF16)), uintptr(unsafe.Pointer(&available)), 0, 0)
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if result == 0 {
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return 0, fmt.Errorf("GetDiskFreeSpaceExW: %w", callErr)
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}
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if available > uint64(^uint64(0)>>1) {
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return int64(^uint64(0) >> 1), nil
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}
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return int64(available), nil
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}
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