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https://github.com/lightningnetwork/lnd.git
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c57128097e
In this commit, we extend the wtclient.Client interface with the following methods: * AddTower * RemoveTower * RegisteredTowers * LookupTower * Stats Care has been taken to ensure that any in-memory state updates are _only_ performed after a successful database update. These methods are currently unused, but they serve as a dependency for the upcoming WatchtowerClient RPC subserver.
98 lines
2.8 KiB
Go
98 lines
2.8 KiB
Go
package wtclient
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import (
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"fmt"
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"sync"
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)
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// ClientStats is a collection of in-memory statistics of the actions the client
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// has performed since its creation.
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type ClientStats struct {
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mu sync.Mutex
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// NumTasksReceived is the total number of backups that are pending to
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// be acknowledged by all active and exhausted watchtower sessions.
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NumTasksReceived int
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// NumTasksAccepted is the total number of backups made to all active
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// and exhausted watchtower sessions.
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NumTasksAccepted int
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// NumTasksIneligible is the total number of backups that all active and
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// exhausted watchtower sessions have failed to acknowledge.
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NumTasksIneligible int
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// NumSessionsAcquired is the total number of new sessions made to
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// watchtowers.
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NumSessionsAcquired int
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// NumSessionsExhausted is the total number of watchtower sessions that
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// have been exhausted.
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NumSessionsExhausted int
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}
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// taskReceived increments the number to backup requests the client has received
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// from active channels.
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func (s *ClientStats) taskReceived() {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.NumTasksReceived++
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}
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// taskAccepted increments the number of tasks that have been assigned to active
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// session queues, and are awaiting upload to a tower.
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func (s *ClientStats) taskAccepted() {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.NumTasksAccepted++
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}
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// taskIneligible increments the number of tasks that were unable to satisfy the
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// active session queue's policy. These can potentially be retried later, but
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// typically this means that the balance created dust outputs, so it may not be
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// worth backing up at all.
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func (s *ClientStats) taskIneligible() {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.NumTasksIneligible++
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}
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// sessionAcquired increments the number of sessions that have been successfully
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// negotiated by the client during this execution.
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func (s *ClientStats) sessionAcquired() {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.NumSessionsAcquired++
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}
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// sessionExhausted increments the number of session that have become full as a
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// result of accepting backup tasks.
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func (s *ClientStats) sessionExhausted() {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.NumSessionsExhausted++
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}
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// String returns a human readable summary of the client's metrics.
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func (s *ClientStats) String() string {
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s.mu.Lock()
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defer s.mu.Unlock()
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return fmt.Sprintf("tasks(received=%d accepted=%d ineligible=%d) "+
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"sessions(acquired=%d exhausted=%d)", s.NumTasksReceived,
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s.NumTasksAccepted, s.NumTasksIneligible, s.NumSessionsAcquired,
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s.NumSessionsExhausted)
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}
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// Copy returns a copy of the current stats.
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func (s *ClientStats) Copy() ClientStats {
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s.mu.Lock()
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defer s.mu.Unlock()
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return ClientStats{
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NumTasksReceived: s.NumTasksReceived,
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NumTasksAccepted: s.NumTasksAccepted,
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NumTasksIneligible: s.NumTasksIneligible,
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NumSessionsAcquired: s.NumSessionsAcquired,
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NumSessionsExhausted: s.NumSessionsExhausted,
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}
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}
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