f697b33283
* plugins: Return error for multiple use of some Return plugin.ErrOnce when a plugin that doesn't support it, is called mutliple times. This now adds it for: cache, dnssec, errors, forward, hosts, nsid. And changes it slightly in kubernetes, pprof, reload, root. * more tests
55 lines
834 B
Go
55 lines
834 B
Go
package pprof
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import (
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"net"
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"sync"
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"github.com/coredns/coredns/plugin"
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"github.com/mholt/caddy"
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)
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const defaultAddr = "localhost:6053"
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func init() {
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caddy.RegisterPlugin("pprof", caddy.Plugin{
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ServerType: "dns",
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Action: setup,
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})
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}
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func setup(c *caddy.Controller) error {
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h := &handler{addr: defaultAddr}
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i := 0
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for c.Next() {
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if i > 0 {
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return plugin.Error("pprof", plugin.ErrOnce)
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}
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i++
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args := c.RemainingArgs()
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if len(args) == 1 {
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h.addr = args[0]
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_, _, e := net.SplitHostPort(h.addr)
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if e != nil {
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return e
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}
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}
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if len(args) > 1 {
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return plugin.Error("pprof", c.ArgErr())
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}
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if c.NextBlock() {
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return plugin.Error("pprof", c.ArgErr())
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}
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}
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pprofOnce.Do(func() {
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c.OnStartup(h.Startup)
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c.OnShutdown(h.Shutdown)
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})
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return nil
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}
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var pprofOnce sync.Once
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