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58 lines
1.0 KiB
Go
58 lines
1.0 KiB
Go
/*
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File Name: Fragment.go
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Copyright: 2021 Peernet s.r.o.
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Author: Peter Kleissner
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*/
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package merkle
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// MinimumFragmentSize is the minimum size a fragment must be. Merkle trees are not used equal or below that size.
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const MinimumFragmentSize = 256 * KB
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const KB = 1024
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const MB = 1024 * KB
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const GB = 1024 * MB
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const TB = 1024 * GB
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const PB = 1024 * TB
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// CalculateFragmentSize calculates the fragment size based on the file size.
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func CalculateFragmentSize(fileSize uint64) (fragmentSize uint64) {
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switch {
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case fileSize <= 256*MB:
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return 256 * KB
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case fileSize <= 1*GB:
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return 512 * KB
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case fileSize <= 2*GB:
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return 1 * MB
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case fileSize <= 4*GB:
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return 2 * MB
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case fileSize <= 8*GB:
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return 8 * MB
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case fileSize <= 16*GB:
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return 16 * MB
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case fileSize <= 32*GB:
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return 32 * MB
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case fileSize <= 64*GB:
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return 64 * MB
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case fileSize <= 1*TB:
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return 64 * MB
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case fileSize <= 2*TB:
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return 128 * MB
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case fileSize <= 1*PB:
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return 512 * MB
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default: // 1 PB+
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return 1 * GB
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}
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}
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