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authorChris Lu <chris.lu@gmail.com>2014-08-31 23:25:54 -0700
committerChris Lu <chris.lu@gmail.com>2014-08-31 23:25:54 -0700
commit69343c5951a7e6a6e272393c1946c12d635b51b8 (patch)
tree634dfe70c1a02def0d314559eee987a38efddc52 /go/util/bytes.go
parent57a4549d8678bb08f4ecbdede1939830471e3091 (diff)
downloadseaweedfs-69343c5951a7e6a6e272393c1946c12d635b51b8.tar.xz
seaweedfs-69343c5951a7e6a6e272393c1946c12d635b51b8.zip
adding ttl field to volume super block
Diffstat (limited to 'go/util/bytes.go')
-rw-r--r--go/util/bytes.go12
1 files changed, 12 insertions, 0 deletions
diff --git a/go/util/bytes.go b/go/util/bytes.go
index 6cc3d7018..dfa4ae665 100644
--- a/go/util/bytes.go
+++ b/go/util/bytes.go
@@ -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)
}