Add podman machine events

Signed-off-by: Jhon Honce <jhonce@redhat.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/libpod/events/memory.go b/libpod/events/memory.go
new file mode 100644
index 000000000..b3e03d86b
--- /dev/null
+++ b/libpod/events/memory.go
@@ -0,0 +1,49 @@
+package events
+
+import (
+	"context"
+)
+
+// EventMemory is the structure for event writing to a channel. It contains the eventer
+// options and the event itself.  Methods for reading and writing are also defined from it.
+type EventMemory struct {
+	options  EventerOptions
+	elements chan *Event
+}
+
+// Write event to memory queue
+func (e EventMemory) Write(event Event) (err error) {
+	e.elements <- &event
+	return
+}
+
+// Read event(s) from memory queue
+func (e EventMemory) Read(ctx context.Context, options ReadOptions) (err error) {
+	select {
+	case <-ctx.Done():
+		return
+	default:
+	}
+
+	select {
+	case event := <-e.elements:
+		options.EventChannel <- event
+	default:
+	}
+	return nil
+}
+
+// String returns eventer type
+func (e EventMemory) String() string {
+	return e.options.EventerType
+}
+
+// NewMemoryEventer returns configured MemoryEventer
+func NewMemoryEventer() Eventer {
+	return EventMemory{
+		options: EventerOptions{
+			EventerType: Memory.String(),
+		},
+		elements: make(chan *Event, 100),
+	}
+}