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path: root/vendor/gitea.com/macaron/cache/utils.go
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-rw-r--r--vendor/gitea.com/macaron/cache/utils.go84
1 files changed, 84 insertions, 0 deletions
diff --git a/vendor/gitea.com/macaron/cache/utils.go b/vendor/gitea.com/macaron/cache/utils.go
new file mode 100644
index 0000000000..734fb6f40e
--- /dev/null
+++ b/vendor/gitea.com/macaron/cache/utils.go
@@ -0,0 +1,84 @@
+// Copyright 2014 The Macaron Authors
+//
+// 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.
+
+package cache
+
+import (
+ "bytes"
+ "encoding/gob"
+ "errors"
+)
+
+func EncodeGob(item *Item) ([]byte, error) {
+ buf := bytes.NewBuffer(nil)
+ err := gob.NewEncoder(buf).Encode(item)
+ return buf.Bytes(), err
+}
+
+func DecodeGob(data []byte, out *Item) error {
+ buf := bytes.NewBuffer(data)
+ return gob.NewDecoder(buf).Decode(&out)
+}
+
+func Incr(val interface{}) (interface{}, error) {
+ switch val.(type) {
+ case int:
+ val = val.(int) + 1
+ case int32:
+ val = val.(int32) + 1
+ case int64:
+ val = val.(int64) + 1
+ case uint:
+ val = val.(uint) + 1
+ case uint32:
+ val = val.(uint32) + 1
+ case uint64:
+ val = val.(uint64) + 1
+ default:
+ return val, errors.New("item value is not int-type")
+ }
+ return val, nil
+}
+
+func Decr(val interface{}) (interface{}, error) {
+ switch val.(type) {
+ case int:
+ val = val.(int) - 1
+ case int32:
+ val = val.(int32) - 1
+ case int64:
+ val = val.(int64) - 1
+ case uint:
+ if val.(uint) > 0 {
+ val = val.(uint) - 1
+ } else {
+ return val, errors.New("item value is less than 0")
+ }
+ case uint32:
+ if val.(uint32) > 0 {
+ val = val.(uint32) - 1
+ } else {
+ return val, errors.New("item value is less than 0")
+ }
+ case uint64:
+ if val.(uint64) > 0 {
+ val = val.(uint64) - 1
+ } else {
+ return val, errors.New("item value is less than 0")
+ }
+ default:
+ return val, errors.New("item value is not int-type")
+ }
+ return val, nil
+}