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adding ttl field to volume super block

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This commit is contained in:
Chris Lu
2014-08-31 23:25:54 -07:00
parent 57a4549d86
commit 69343c5951
4 changed files with 45 additions and 1 deletions
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12
go/util/bytes.go
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@@ -1,5 +1,7 @@
package util
// big endian
func BytesToUint64(b []byte) (v uint64) {
length := uint(len(b))
for i := uint(0); i < length-1; i++ {
@@ -18,6 +20,12 @@ func BytesToUint32(b []byte) (v uint32) {
v += uint32(b[length-1])
return
}
func BytesToUint16(b []byte) (v uint16) {
v += uint16(b[0])
v <<= 8
v += uint16(b[1])
return
}
func Uint64toBytes(b []byte, v uint64) {
for i := uint(0); i < 8; i++ {
b[7-i] = byte(v >> (i * 8))
@@ -28,6 +36,10 @@ func Uint32toBytes(b []byte, v uint32) {
b[3-i] = byte(v >> (i * 8))
}
}
func Uint16toBytes(b []byte, v uint16) {
b[0] = byte(v >> 8)
b[1] = byte(v)
}
func Uint8toBytes(b []byte, v uint8) {
b[0] = byte(v)
}