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authorChris Lu <chris.lu@gmail.com>2016-06-02 18:09:14 -0700
committerChris Lu <chris.lu@gmail.com>2016-06-02 18:09:14 -0700
commit5ce6bbf07672bf3f3c8d26cd2ce0e3e853a47c44 (patch)
tree2e4dd2ad0a618ab2b7cdebcdb9c503526c31e2e8 /weed/util/bytes.go
parentcaeffa3998adc060fa66c4cd77af971ff2d26c57 (diff)
downloadseaweedfs-5ce6bbf07672bf3f3c8d26cd2ce0e3e853a47c44.tar.xz
seaweedfs-5ce6bbf07672bf3f3c8d26cd2ce0e3e853a47c44.zip
directory structure change to work with glide
glide has its own requirements. My previous workaround caused me some code checkin errors. Need to fix this.
Diffstat (limited to 'weed/util/bytes.go')
-rw-r--r--weed/util/bytes.go45
1 files changed, 45 insertions, 0 deletions
diff --git a/weed/util/bytes.go b/weed/util/bytes.go
new file mode 100644
index 000000000..dfa4ae665
--- /dev/null
+++ b/weed/util/bytes.go
@@ -0,0 +1,45 @@
+package util
+
+// big endian
+
+func BytesToUint64(b []byte) (v uint64) {
+ length := uint(len(b))
+ for i := uint(0); i < length-1; i++ {
+ v += uint64(b[i])
+ v <<= 8
+ }
+ v += uint64(b[length-1])
+ return
+}
+func BytesToUint32(b []byte) (v uint32) {
+ length := uint(len(b))
+ for i := uint(0); i < length-1; i++ {
+ v += uint32(b[i])
+ v <<= 8
+ }
+ 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))
+ }
+}
+func Uint32toBytes(b []byte, v uint32) {
+ for i := uint(0); i < 4; i++ {
+ 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)
+}