coredns/middleware/pprof/setup.go
Miek Gieben 2dd8a687b3 Startup notification (#250)
Stop the caddy message and start our own init notifications.
Log the version of CoreDNS when starting up.
Fix all middleware's setup functions so that return the error prefixed
with *which* middleware was failing; leads to better debuggable errors
when starting up.
2016-09-10 09:16:25 +01:00

41 lines
710 B
Go

package pprof
import (
"sync"
"github.com/mholt/caddy"
"github.com/miekg/coredns/middleware"
)
func init() {
caddy.RegisterPlugin("pprof", caddy.Plugin{
ServerType: "dns",
Action: setup,
})
}
func setup(c *caddy.Controller) error {
found := false
for c.Next() {
if found {
return middleware.Error("pprof", c.Err("pprof can only be specified once"))
}
if len(c.RemainingArgs()) != 0 {
return middleware.Error("pprof", c.ArgErr())
}
if c.NextBlock() {
return middleware.Error("pprof", c.ArgErr())
}
found = true
}
handler := &Handler{}
pprofOnce.Do(func() {
c.OnStartup(handler.Startup)
c.OnShutdown(handler.Shutdown)
})
return nil
}
var pprofOnce sync.Once