[feature] Read + Write tombstones for deleted Actors (#1005)

* [feature] Read + Write tombstones for deleted Actors

* copyTombstone

* update to use resultcache instead of old ttl cache

Signed-off-by: kim <grufwub@gmail.com>

* update go-cache library to fix result cache capacity / ordering bugs

Signed-off-by: kim <grufwub@gmail.com>

* bump go-cache/v3 to v3.1.6 to fix bugs

Signed-off-by: kim <grufwub@gmail.com>

* switch on status code

* better explain ErrGone reasoning

Signed-off-by: kim <grufwub@gmail.com>
Co-authored-by: kim <grufwub@gmail.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/vendor/codeberg.org/gruf/go-cache/v3/result/error.go b/vendor/codeberg.org/gruf/go-cache/v3/result/error.go
new file mode 100644
index 000000000..fa26083bf
--- /dev/null
+++ b/vendor/codeberg.org/gruf/go-cache/v3/result/error.go
@@ -0,0 +1,22 @@
+package result
+
+import "errors"
+
+// ErrUnkownLookup ...
+var ErrUnknownLookup = errors.New("unknown lookup identifier")
+
+// IsConflictErr returns whether error is due to key conflict.
+func IsConflictErr(err error) bool {
+	_, ok := err.(ConflictError)
+	return ok
+}
+
+// ConflictError is returned on cache key conflict.
+type ConflictError struct {
+	Key string
+}
+
+// Error returns the message for this key conflict error.
+func (c ConflictError) Error() string {
+	return "cache conflict for key \"" + c.Key + "\""
+}