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package pprof
import (
"net"
"sync"
"github.com/coredns/coredns/plugin"
clog "github.com/coredns/coredns/plugin/pkg/log"
"github.com/mholt/caddy"
)
var log = clog.NewWithPlugin("pprof")
const defaultAddr = "localhost:6053"
func init() {
caddy.RegisterPlugin("pprof", caddy.Plugin{
ServerType: "dns",
Action: setup,
})
}
func setup(c *caddy.Controller) error {
h := &handler{addr: defaultAddr}
i := 0
for c.Next() {
if i > 0 {
return plugin.Error("pprof", plugin.ErrOnce)
}
i++
args := c.RemainingArgs()
if len(args) == 1 {
h.addr = args[0]
_, _, e := net.SplitHostPort(h.addr)
if e != nil {
return e
}
}
if len(args) > 1 {
return plugin.Error("pprof", c.ArgErr())
}
if c.NextBlock() {
return plugin.Error("pprof", c.ArgErr())
}
}
pprofOnce.Do(func() {
c.OnStartup(h.Startup)
c.OnShutdown(h.Shutdown)
})
return nil
}
var pprofOnce sync.Once
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