63 lines
1.9 KiB
Go
63 lines
1.9 KiB
Go
package libimage
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import (
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"time"
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"github.com/sirupsen/logrus"
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)
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// EventType indicates the type of an event. Currently, there is only one
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// supported type for container image but we may add more (e.g., for manifest
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// lists) in the future.
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type EventType int
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const (
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// EventTypeUnknown is an uninitialized EventType.
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EventTypeUnknown EventType = iota
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// EventTypeImagePull represents an image pull.
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EventTypeImagePull
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// EventTypeImagePush represents an image push.
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EventTypeImagePush
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// EventTypeImageRemove represents an image removal.
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EventTypeImageRemove
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// EventTypeImageLoad represents an image being loaded.
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EventTypeImageLoad
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// EventTypeImageSave represents an image being saved.
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EventTypeImageSave
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// EventTypeImageTag represents an image being tagged.
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EventTypeImageTag
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// EventTypeImageUntag represents an image being untagged.
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EventTypeImageUntag
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// EventTypeImageMount represents an image being mounted.
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EventTypeImageMount
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// EventTypeImageUnmount represents an image being unmounted.
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EventTypeImageUnmount
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)
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// Event represents an event such an image pull or image tag.
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type Event struct {
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// ID of the object (e.g., image ID).
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ID string
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// Name of the object (e.g., image name "quay.io/containers/podman:latest")
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Name string
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// Time of the event.
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Time time.Time
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// Type of the event.
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Type EventType
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}
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// writeEvent writes the specified event to the Runtime's event channel. The
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// event is discarded if no event channel has been registered (yet).
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func (r *Runtime) writeEvent(event *Event) {
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select {
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case r.eventChannel <- event:
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// Done
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case <-time.After(2 * time.Second):
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// The Runtime's event channel has a buffer of size 100 which
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// should be enough even under high load. However, we
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// shouldn't block too long in case the buffer runs full (could
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// be an honest user error or bug).
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logrus.Warnf("Discarding libimage event which was not read within 2 seconds: %v", event)
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}
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}
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