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main.go
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main.go
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// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package main
import (
"fmt"
"path"
"github.com/ava-labs/gecko/nat"
"github.com/ava-labs/gecko/node"
"github.com/ava-labs/gecko/utils/crypto"
"github.com/ava-labs/gecko/utils/logging"
)
// main is the primary entry point to Ava. This can either create a CLI to an
// existing node or create a new node.
func main() {
// Err is set based on the CLI arguments
if Err != nil {
fmt.Printf("parsing parameters returned with error %s\n", Err)
return
}
config := Config.LoggingConfig
config.Directory = path.Join(config.Directory, "node")
factory := logging.NewFactory(config)
defer factory.Close()
log, err := factory.Make()
if err != nil {
fmt.Printf("starting logger failed with: %s\n", err)
return
}
fmt.Println(gecko)
defer func() { recover() }()
defer log.Stop()
defer log.StopOnPanic()
defer Config.DB.Close()
if Config.StakingIP.IsZero() {
log.Warn("NAT traversal has failed. If this node becomes a staker, it may lose its reward due to being unreachable.")
}
// Track if sybil control is enforced
if !Config.EnableStaking {
log.Warn("Staking and p2p encryption are disabled. Packet spoofing is possible.")
}
// Check if transaction signatures should be checked
if !Config.EnableCrypto {
log.Warn("transaction signatures are not being checked")
}
crypto.EnableCrypto = Config.EnableCrypto
if err := Config.ConsensusParams.Valid(); err != nil {
log.Fatal("consensus parameters are invalid: %s", err)
return
}
// Track if assertions should be executed
if Config.LoggingConfig.Assertions {
log.Warn("assertions are enabled. This may slow down execution")
}
mapper := nat.NewDefaultMapper(log, Config.Nat, nat.TCP, "gecko")
defer mapper.UnmapAllPorts()
mapper.MapPort(Config.StakingIP.Port, Config.StakingIP.Port)
mapper.MapPort(Config.HTTPPort, Config.HTTPPort)
log.Debug("initializing node state")
// MainNode is a global variable in the node.go file
if err := node.MainNode.Initialize(&Config, log, factory); err != nil {
log.Fatal("error initializing node state: %s", err)
return
}
log.Debug("Starting servers")
if err := node.MainNode.StartConsensusServer(); err != nil {
log.Fatal("problem starting servers: %s", err)
return
}
defer node.MainNode.Shutdown()
log.Debug("Dispatching node handlers")
node.MainNode.Dispatch()
}