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package pprof
import (
"errors"
"math"
opservice "github.com/ethereum-optimism/optimism/op-service"
"github.com/urfave/cli/v2"
)
const (
EnabledFlagName = "pprof.enabled"
ListenAddrFlagName = "pprof.addr"
PortFlagName = "pprof.port"
defaultListenAddr = "0.0.0.0"
defaultListenPort = 6060
)
func DefaultCLIConfig() CLIConfig {
return CLIConfig{
Enabled: false,
ListenAddr: defaultListenAddr,
ListenPort: defaultListenPort,
}
}
func CLIFlags(envPrefix string) []cli.Flag {
return []cli.Flag{
&cli.BoolFlag{
Name: EnabledFlagName,
Usage: "Enable the pprof server",
EnvVars: opservice.PrefixEnvVar(envPrefix, "PPROF_ENABLED"),
},
&cli.StringFlag{
Name: ListenAddrFlagName,
Usage: "pprof listening address",
Value: defaultListenAddr, // TODO(CLI-4159): Switch to 127.0.0.1
EnvVars: opservice.PrefixEnvVar(envPrefix, "PPROF_ADDR"),
},
&cli.IntFlag{
Name: PortFlagName,
Usage: "pprof listening port",
Value: defaultListenPort,
EnvVars: opservice.PrefixEnvVar(envPrefix, "PPROF_PORT"),
},
}
}
type CLIConfig struct {
Enabled bool
ListenAddr string
ListenPort int
}
func (m CLIConfig) Check() error {
if !m.Enabled {
return nil
}
if m.ListenPort < 0 || m.ListenPort > math.MaxUint16 {
return errors.New("invalid pprof port")
}
return nil
}
func ReadCLIConfig(ctx *cli.Context) CLIConfig {
return CLIConfig{
Enabled: ctx.Bool(EnabledFlagName),
ListenAddr: ctx.String(ListenAddrFlagName),
ListenPort: ctx.Int(PortFlagName),
}
}