Enable way to split files at input bytes

pkgs/split/split.go

@@ -0,0 +1,53 @@
+/*
+ * Mini Object Storage, (C) 2014 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// +build linux
+// amd64
+
+package split
+
+// #include <stdlib.h>
+// #include <stdlib.h>
+//
+// #include "split.h"
+import "C"
+import (
+	"errors"
+	"github.com/minio-io/minio/pkgs/strbyteconv"
+	"unsafe"
+)
+
+type Split struct {
+	bytecnt C.ssize_t
+	bname   *C.char
+}
+
+func (b *Split) GenChunks(bname string, bytestr string) error {
+	bytecnt, err := strbyteconv.StringToBytes(bytestr)
+	if err != nil {
+		return err
+	}
+
+	b.bytecnt = C.ssize_t(bytecnt)
+	b.bname = C.CString(bname)
+	defer C.free(unsafe.Pointer(b.bname))
+
+	value := C.minio_split(b.bname, b.bytecnt)
+	if value < 0 {
+		return errors.New("File split failed")
+	}
+	return nil
+}