/
types.go
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/
types.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package types
import (
"time"
"github.com/google/uuid"
)
const (
// LostEventSourceUnspec indicates an event has been lost at an unknown
// source
LostEventSourceUnspec = iota
// LostEventSourcePerfRingBuffer indicates an event has been lost because
// the perf event ring buffer was not read before it was overwritten.
LostEventSourcePerfRingBuffer
// LostEventSourceEventsQueue indicates that an event has been dropped
// because the events queue was full.
LostEventSourceEventsQueue
// LostEventSourceHubbleRingBuffer indicates that an event was dropped
// because it could not be read from Hubble's ring buffer in time before
// being overwritten.
LostEventSourceHubbleRingBuffer
)
// MonitorEvent is the top-level type for all events consumed by the observer
type MonitorEvent struct {
// UUID is a unique identifier for this event
UUID uuid.UUID
// Timestamp when the event was received by the consumer
Timestamp time.Time
// NodeName where the event occurred
NodeName string
// Payload is one of: AgentEvent, PerfEvent or LostEvent
Payload interface{}
}
// AgentEvent is any agent event
type AgentEvent struct {
// Type is a monitorAPI.MessageType* value
Type int
// Message is the agent message, e.g. accesslog.LogRecord, monitorAPI.AgentNotifyMessage
Message interface{}
}
// PerfEvent is a raw event obtained from a BPF perf ring buffer
type PerfEvent struct {
// Data is the raw data payload of the perf event
Data []byte
// CPU is the cpu number on which the perf event occurred
CPU int
}
// LostEvent indicates that a number of events were lost at the indicated source
type LostEvent struct {
// Source is where the events were dropped
Source int
// NumLostEvents is the number of events lost
NumLostEvents uint64
// CPU is the cpu number if for events lost in the perf ring buffer
CPU int
}