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authorKali Kaneko (leap communications) <kali@leap.se>2019-08-08 00:19:33 +0200
committerKali Kaneko (leap communications) <kali@leap.se>2019-08-08 00:19:33 +0200
commitfde18e485ff7cbc7b2e33dade8e81136f06a5b60 (patch)
tree79a6dbd13e7e4a46e708a70104c548f403b477ae /vendor/github.com/getlantern/errors/hide.go
parent93e1de570f47b095905835735dbd67479aa0c2de (diff)
[pkg] remove vendor
Diffstat (limited to 'vendor/github.com/getlantern/errors/hide.go')
-rw-r--r--vendor/github.com/getlantern/errors/hide.go50
1 files changed, 0 insertions, 50 deletions
diff --git a/vendor/github.com/getlantern/errors/hide.go b/vendor/github.com/getlantern/errors/hide.go
deleted file mode 100644
index f10d863..0000000
--- a/vendor/github.com/getlantern/errors/hide.go
+++ /dev/null
@@ -1,50 +0,0 @@
-package errors
-
-import (
- "encoding/binary"
- "sync"
-
- "github.com/getlantern/hidden"
-)
-
-var (
- hiddenErrors = make([]*structured, 100)
- nextID = uint64(0)
- hiddenMutex sync.RWMutex
-)
-
-// This trick saves the error to a ring buffer and embeds a non-printing
-// hiddenID in the error's description, so that if the errors is later wrapped
-// by a standard error using something like
-// fmt.Errorf("An error occurred: %v", thisError), we can subsequently extract
-// the error simply using the hiddenID in the string.
-func (e *structured) save() {
- hiddenMutex.Lock()
- b := make([]byte, 8)
- binary.BigEndian.PutUint64(b, nextID)
- e.id = nextID
- e.hiddenID = hidden.ToString(b)
- hiddenErrors[idxForID(nextID)] = e
- nextID++
- hiddenMutex.Unlock()
-}
-
-func get(hiddenID []byte) Error {
- if len(hiddenID) != 8 {
- return nil
- }
- id := binary.BigEndian.Uint64(hiddenID)
- hiddenMutex.RLock()
- err := hiddenErrors[idxForID(id)]
- hiddenMutex.RUnlock()
- if err != nil && err.id == id {
- // Found it!
- return err
- }
- // buffer has rolled over
- return nil
-}
-
-func idxForID(id uint64) int {
- return int(id % uint64(len(hiddenErrors)))
-}