12312390362

Committed 13 Dec 2024 08:44AM UTC coverage: 57.458% (+8.5%) from 48.92%

Build # 12312390362

Build Type

Pull #9343

github

Committed by

ellemouton

Commit Message

fn: rework the ContextGuard and add tests

In this commit, the ContextGuard struct is re-worked such that the
context that its new main WithCtx method provides is cancelled in sync
with a parent context being cancelled or with it's quit channel being
cancelled. Tests are added to assert the behaviour. In order for the
close of the quit channel to be consistent with the cancelling of the
derived context, the quit channel _must_ be contained internal to the
ContextGuard so that callers are only able to close the channel via the
exposed Quit method which will then take care to first cancel any
derived context that depend on the quit channel before returning.

Pull Request Pull Request #9343: fn: expand the ContextGuard and add tests

Run Details

101853 of 177264 relevant lines covered (57.46%)

24972.93 hits per line

Source File
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79.49

/graph/stats.go

package graph

import (
        "fmt"
        "sync"
        "time"
)

// routerStats is a struct that tracks various updates to the graph and
// facilitates aggregate logging of the statistics.
type routerStats struct {
        numChannels uint32
        numUpdates  uint32
        numNodes    uint32
        lastReset   time.Time

        mu sync.RWMutex
}

// incNumEdges increments the number of discovered edges.
func (g *routerStats) incNumEdgesDiscovered() {
        g.mu.Lock()
        g.numChannels++
        g.mu.Unlock()
}

// incNumUpdates increments the number of channel updates processed.
func (g *routerStats) incNumChannelUpdates() {
        g.mu.Lock()
        g.numUpdates++
        g.mu.Unlock()
}

// incNumNodeUpdates increments the number of node updates processed.
func (g *routerStats) incNumNodeUpdates() {
        g.mu.Lock()
        g.numNodes++
        g.mu.Unlock()
}

// Empty returns true if all stats are zero.
func (g *routerStats) Empty() bool {
        g.mu.RLock()
        isEmpty := g.numChannels == 0 &&
                g.numUpdates == 0 &&
                g.numNodes == 0
        g.mu.RUnlock()
        return isEmpty
}

// Reset clears any router stats and sets the lastReset field to now.
func (g *routerStats) Reset() {
        g.mu.Lock()
        g.numChannels = 0
        g.numUpdates = 0
        g.numNodes = 0
        g.lastReset = time.Now()
        g.mu.Unlock()
}

// String returns a human-readable description of the router stats.
func (g *routerStats) String() string {
        g.mu.RLock()
        str := fmt.Sprintf("Processed channels=%d updates=%d nodes=%d in "+
                "last %v", g.numChannels, g.numUpdates, g.numNodes,
                time.Since(g.lastReset))
        g.mu.RUnlock()
        return str
}

1	package graph
2
3	import (
4	"fmt"
5	"sync"
6	"time"
7	)
8
9	// routerStats is a struct that tracks various updates to the graph and
10	// facilitates aggregate logging of the statistics.
11	type routerStats struct {
12	numChannels uint32
13	numUpdates uint32
14	numNodes uint32
15	lastReset time.Time
16
17	mu sync.RWMutex
18	}
19
20	// incNumEdges increments the number of discovered edges.
21	func (g *routerStats) incNumEdgesDiscovered() {	14✔
22	g.mu.Lock()	14✔
23	g.numChannels++	14✔
24	g.mu.Unlock()	14✔
25	}	14✔
26
27	// incNumUpdates increments the number of channel updates processed.
28	func (g *routerStats) incNumChannelUpdates() {	5✔
29	g.mu.Lock()	5✔
30	g.numUpdates++	5✔
31	g.mu.Unlock()	5✔
32	}	5✔
33
34	// incNumNodeUpdates increments the number of node updates processed.
35	func (g *routerStats) incNumNodeUpdates() {	6✔
36	g.mu.Lock()	6✔
37	g.numNodes++	6✔
38	g.mu.Unlock()	6✔
39	}	6✔
40
41	// Empty returns true if all stats are zero.
42	func (g *routerStats) Empty() bool {	131✔
43	g.mu.RLock()	131✔
44	isEmpty := g.numChannels == 0 &&	131✔
45	g.numUpdates == 0 &&	131✔
46	g.numNodes == 0	131✔
47	g.mu.RUnlock()	131✔
48	return isEmpty	131✔
49	}	131✔
50
51	// Reset clears any router stats and sets the lastReset field to now.
52	func (g *routerStats) Reset() {	21✔
53	g.mu.Lock()	21✔
54	g.numChannels = 0	21✔
55	g.numUpdates = 0	21✔
56	g.numNodes = 0	21✔
57	g.lastReset = time.Now()	21✔
58	g.mu.Unlock()	21✔
59	}	21✔
60
61	// String returns a human-readable description of the router stats.
62	func (g *routerStats) String() string {	×
63	g.mu.RLock()	×
64	str := fmt.Sprintf("Processed channels=%d updates=%d nodes=%d in "+	×
65	"last %v", g.numChannels, g.numUpdates, g.numNodes,	×
66	time.Since(g.lastReset))	×
67	g.mu.RUnlock()	×
68	return str	×
69	}	×

lightningnetwork / lnd / 12312390362

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