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plugin.go
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/
plugin.go
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package signals
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
)
func init() {
httpcaddyfile.RegisterGlobalOption("signals", parseGlobalOption)
}
// Gizmo is an example; put your own type here.
type Gizmo struct {
Sighup string `json:"sighup,omitempty"`
}
func parseGlobalOption(d *caddyfile.Dispenser, existingVal interface{}) (interface{}, error) {
fmt.Println("parseCaddyfile: existingVal=", existingVal)
var m Gizmo
err := m.UnmarshalCaddyfile(d)
fmt.Println("unmarshalled", m)
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGHUP)
go func() {
fmt.Println("awaiting signal")
sig := <-sigs
fmt.Println("sig", sig)
}()
return m, err
}
// // UnmarshalCaddyfile implements caddyfile.Unmarshaler.
func (m *Gizmo) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
// fmt.Println("Unmarshal", d)
for d.Next() {
switch d.Val() {
case "sigusr1":
if !d.Args(&m.Sighup) {
return d.ArgErr()
}
}
// if !d.Args(&m.SigUSR1) {
// return d.ArgErr()
// }
}
return nil
}
// Interface guards
var (
// _ caddy.Provisioner = (*Gizmo)(nil)
_ caddyfile.Unmarshaler = (*Gizmo)(nil)
)