Initial checkin from CRI-O repo

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/oci/store.go b/oci/store.go
new file mode 100644
index 000000000..1d27a0f9e
--- /dev/null
+++ b/oci/store.go
@@ -0,0 +1,27 @@
+package oci
+
+// StoreFilter defines a function to filter
+// container in the store.
+type StoreFilter func(*Container) bool
+
+// StoreReducer defines a function to
+// manipulate containers in the store
+type StoreReducer func(*Container)
+
+// ContainerStorer defines an interface that any container store must implement.
+type ContainerStorer interface {
+	// Add appends a new container to the store.
+	Add(string, *Container)
+	// Get returns a container from the store by the identifier it was stored with.
+	Get(string) *Container
+	// Delete removes a container from the store by the identifier it was stored with.
+	Delete(string)
+	// List returns a list of containers from the store.
+	List() []*Container
+	// Size returns the number of containers in the store.
+	Size() int
+	// First returns the first container found in the store by a given filter.
+	First(StoreFilter) *Container
+	// ApplyAll calls the reducer function with every container in the store.
+	ApplyAll(StoreReducer)
+}