Golint fixes

pkg/encoding/erasure/ctypes.go

@@ -24,32 +24,32 @@ import (
 )
 
 // Integer to Int conversion
-func int2CInt(src_err_list []int) *C.int32_t {
-	var sizeErrInt = int(unsafe.Sizeof(src_err_list[0]))
+func int2CInt(srcErrList []int) *C.int32_t {
+	var sizeErrInt = int(unsafe.Sizeof(srcErrList[0]))
 	switch sizeInt {
 	case sizeErrInt:
-		return (*C.int32_t)(unsafe.Pointer(&src_err_list[0]))
+		return (*C.int32_t)(unsafe.Pointer(&srcErrList[0]))
 	case sizeInt8:
-		int8Array := make([]int8, len(src_err_list))
-		for i, v := range src_err_list {
+		int8Array := make([]int8, len(srcErrList))
+		for i, v := range srcErrList {
 			int8Array[i] = int8(v)
 		}
 		return (*C.int32_t)(unsafe.Pointer(&int8Array[0]))
 	case sizeInt16:
-		int16Array := make([]int16, len(src_err_list))
-		for i, v := range src_err_list {
+		int16Array := make([]int16, len(srcErrList))
+		for i, v := range srcErrList {
 			int16Array[i] = int16(v)
 		}
 		return (*C.int32_t)(unsafe.Pointer(&int16Array[0]))
 	case sizeInt32:
-		int32Array := make([]int32, len(src_err_list))
-		for i, v := range src_err_list {
+		int32Array := make([]int32, len(srcErrList))
+		for i, v := range srcErrList {
 			int32Array[i] = int32(v)
 		}
 		return (*C.int32_t)(unsafe.Pointer(&int32Array[0]))
 	case sizeInt64:
-		int64Array := make([]int64, len(src_err_list))
-		for i, v := range src_err_list {
+		int64Array := make([]int64, len(srcErrList))
+		for i, v := range srcErrList {
 			int64Array[i] = int64(v)
 		}
 		return (*C.int32_t)(unsafe.Pointer(&int64Array[0]))

pkg/encoding/erasure/erasure_decode.go

@@ -41,12 +41,13 @@ func (e *Encoder) Decode(chunks [][]byte, length int) ([]byte, error) {
 	m := int(e.params.M)
 	n := k + m
 	if len(chunks) != n {
-		return nil, errors.New(fmt.Sprintf("chunks length must be %d", n))
+		msg := fmt.Sprintf("chunks length must be %d", n)
+		return nil, errors.New(msg)
 	}
 	chunkLen := GetEncodedBlockLen(length, uint8(k))
 
 	errorIndex := make([]int, n+1)
-	var errCount int = 0
+	var errCount int
 
 	for i := range chunks {
 		// Check of chunks are really null
@@ -63,7 +64,7 @@ func (e *Encoder) Decode(chunks [][]byte, length int) ([]byte, error) {
 		return nil, errors.New("too many erasures requested, can't decode")
 	}
 
-	errorIndex_ptr := int2CInt(errorIndex[:errCount])
+	errorIndexPtr := int2CInt(errorIndex[:errCount])
 
 	for i := range chunks {
 		if chunks[i] == nil || len(chunks[i]) == 0 {
@@ -71,7 +72,7 @@ func (e *Encoder) Decode(chunks [][]byte, length int) ([]byte, error) {
 		}
 	}
 
-	C.minio_init_decoder(errorIndex_ptr, C.int(k), C.int(n), C.int(errCount-1),
+	C.minio_init_decoder(errorIndexPtr, C.int(k), C.int(n), C.int(errCount-1),
 		e.encodeMatrix, &decodeMatrix, &decodeTbls, &decodeIndex)
 
 	pointers := make([]*byte, n)
@@ -81,7 +82,7 @@ func (e *Encoder) Decode(chunks [][]byte, length int) ([]byte, error) {
 
 	data := (**C.uint8_t)(unsafe.Pointer(&pointers[0]))
 
-	ret := C.minio_get_source_target(C.int(errCount-1), C.int(k), C.int(m), errorIndex_ptr,
+	ret := C.minio_get_source_target(C.int(errCount-1), C.int(k), C.int(m), errorIndexPtr,
 		decodeIndex, data, &source, &target)
 
 	if int(ret) == -1 {

pkg/encoding/erasure/erasure_encode.go

@@ -26,19 +26,23 @@ import (
 	"unsafe"
 )
 
+// Technique - type of matrix type used in encoding
 type Technique uint8
 
+// Different types of supported matrix types
 const (
 	Vandermonde Technique = iota
 	Cauchy
 	None
 )
 
+// Default Data and Parity blocks
 const (
 	K = 10
 	M = 3
 )
 
+// Block alignment
 const (
 	SIMDAlign = 32
 )

pkg/utils/cpu/cpu.go

@@ -21,17 +21,17 @@ package cpu
 // int has_avx2 (void);
 import "C"
 
-// CPUID instruction verification wrapper for SSE41 extensions
+// HasSSE41 - CPUID instruction verification wrapper for SSE41 extensions
 func HasSSE41() bool {
 	return int(C.has_sse41()) == 1
 }
 
-// CPUID instruction verification wrapper for AVX extensions
+// HasAVX - CPUID instruction verification wrapper for AVX extensions
 func HasAVX() bool {
 	return int(C.has_avx()) == 1
 }
 
-// CPUID instruction verification wrapper for AVX2 extensions
+// HasAVX2 - CPUID instruction verification wrapper for AVX2 extensions
 func HasAVX2() bool {
 	return int(C.has_avx2()) == 1
 }

pkg/utils/crypto/sha1/sha1_darwin.go

@@ -98,10 +98,10 @@ func (d *digest) Write(p []byte) (nn int, err error) {
 }
 
 // Return checksum bytes
-func (d0 *digest) Sum(in []byte) []byte {
+func (d *digest) Sum(in []byte) []byte {
 	// Make a copy of d0 so that caller can keep writing and summing.
-	d := *d0
-	hash := d.checkSum()
+	d0 := *d
+	hash := d0.checkSum()
 	return append(in, hash[:]...)
 }
 

pkg/utils/crypto/sha512/sha512_darwin.go

@@ -6,6 +6,7 @@ import (
 	"crypto/sha512"
 )
 
+// The size of a SHA512 checksum in bytes.
 const (
 	Size = sha512.Size
 )