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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type EventHandler ¶
type EventHandler func(e *model.ProcessEvent)
EventHandler is a function used by the listener to handle a collected process event
type RingStore ¶
type RingStore struct {
// contains filtered or unexported fields
}
RingStore implements the Store interface using a ring buffer The buffer is accessed by a single routine so it doesn't need to be protected by a mutex It holds two pointers, head and tail, to access the ring buffer head points to the oldest event in the buffer, where data should be consumed from tail points to the node where the next event will be inserted into head = tail if
- the store is empty, in which case the underlying ringNode doesn't have any data
- the store is full. Subsequent Push operations override the data pointed by head and move both head and tail to the next position
func (*RingStore) Push ¶
func (s *RingStore) Push(e *model.ProcessEvent, done chan bool) error
Push adds an event to the RingStore. If the store is full, the oldest event is dropped to make space for the new one The done channel is optional. It's used to signal if the event has been successfully written to the Store
type Store ¶
type Store interface {
// Run starts the store
Run()
// Stop stops the store
Stop()
// Push sends an event to be stored. An optional channel can be passed to acknowledge when the event is successfully written
Push(*model.ProcessEvent, chan bool) error
// Pull fetches all events in the store that haven't been consumed yet
Pull(context.Context, time.Duration) ([]*model.ProcessEvent, error)
}
Store defines an interface to store process events in-memory
func NewRingStore ¶
NewRingStore creates a new RingStore to store process events
type SysProbeListener ¶
type SysProbeListener struct {
// contains filtered or unexported fields
}
SysProbeListener collects process events using the event monitoring module in system-probe
func NewListener ¶
func NewListener(handler EventHandler) (*SysProbeListener, error)
NewListener returns a new SysProbeListener to listen for process events
func NewSysProbeListener ¶
func NewSysProbeListener(conn *grpc.ClientConn, client api.EventMonitoringModuleClient, handler EventHandler) (*SysProbeListener, error)
NewSysProbeListener returns a new SysPobeListener
func (*SysProbeListener) Run ¶
func (l *SysProbeListener) Run()
Run starts a new thread to listen for process events
func (*SysProbeListener) Stop ¶
func (l *SysProbeListener) Stop()
Stop stops the thread listening for process events
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