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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0.0

/cmd/lnd/main.go

package main

import (
        "fmt"
        "os"

        "github.com/jessevdk/go-flags"
        "github.com/lightningnetwork/lnd"
        "github.com/lightningnetwork/lnd/signal"
)

func main() {
        // Hook interceptor for os signals.
        shutdownInterceptor, err := signal.Intercept()
        if err != nil {
                _, _ = fmt.Fprintln(os.Stderr, err)
                os.Exit(1)
        }

        // Load the configuration, and parse any command line options. This
        // function will also set up logging properly.
        loadedConfig, err := lnd.LoadConfig(shutdownInterceptor)
        if err != nil {
                if e, ok := err.(*flags.Error); !ok || e.Type != flags.ErrHelp {
                        // Print error if not due to help request.
                        err = fmt.Errorf("failed to load config: %w", err)
                        _, _ = fmt.Fprintln(os.Stderr, err)
                        os.Exit(1)
                }

                // Help was requested, exit normally.
                os.Exit(0)
        }
        implCfg := loadedConfig.ImplementationConfig(shutdownInterceptor)

        // Call the "real" main in a nested manner so the defers will properly
        // be executed in the case of a graceful shutdown.
        if err = lnd.Main(
                loadedConfig, lnd.ListenerCfg{}, implCfg, shutdownInterceptor,
        ); err != nil {
                _, _ = fmt.Fprintln(os.Stderr, err)
                os.Exit(1)
        }
}

1	package main
2
3	import (
4	"fmt"
5	"os"
6
7	"github.com/jessevdk/go-flags"
8	"github.com/lightningnetwork/lnd"
9	"github.com/lightningnetwork/lnd/signal"
10	)
11
12	func main() {	×
13	// Hook interceptor for os signals.	×
14	shutdownInterceptor, err := signal.Intercept()	×
15	if err != nil {	×
16	_, _ = fmt.Fprintln(os.Stderr, err)	×
17	os.Exit(1)	×
18	}	×
19
20	// Load the configuration, and parse any command line options. This
21	// function will also set up logging properly.
22	loadedConfig, err := lnd.LoadConfig(shutdownInterceptor)	×
23	if err != nil {	×
24	if e, ok := err.(*flags.Error); !ok \|\| e.Type != flags.ErrHelp {	×
25	// Print error if not due to help request.	×
26	err = fmt.Errorf("failed to load config: %w", err)	×
27	_, _ = fmt.Fprintln(os.Stderr, err)	×
28	os.Exit(1)	×
29	}	×
30
31	// Help was requested, exit normally.
32	os.Exit(0)	×
33	}
34	implCfg := loadedConfig.ImplementationConfig(shutdownInterceptor)	×
35		×
36	// Call the "real" main in a nested manner so the defers will properly	×
37	// be executed in the case of a graceful shutdown.	×
38	if err = lnd.Main(	×
39	loadedConfig, lnd.ListenerCfg{}, implCfg, shutdownInterceptor,	×
40	); err != nil {	×
41	_, _ = fmt.Fprintln(os.Stderr, err)	×
42	os.Exit(1)	×
43	}	×
44	}

lightningnetwork / lnd / 12312390362

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