yggdrasil-network/yggdrasil-go
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Support notifying components for config reload, listen for SIGHUP

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This commit is contained in:
Neil Alexander 2018-12-29 18:51:51 +00:00
parent b4a7dab34d
commit 219fb96553
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GPG key ID: A02A2019A2BB0944
10 changed files with 189 additions and 36 deletions
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53
src/yggdrasil/core.go
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@ -7,6 +7,7 @@ import (
"log"
"net"
"regexp"
"sync"
"github.com/yggdrasil-network/yggdrasil-go/src/address"
"github.com/yggdrasil-network/yggdrasil-go/src/config"
@ -17,14 +18,26 @@ import (
var buildName string
var buildVersion string
type module interface {
init(*config.NodeConfig) error
start() error
}
// The Core object represents the Yggdrasil node. You should create a Core
// object for each Yggdrasil node you plan to run.
type Core struct {
// This is the main data structure that holds everything else for a node
boxPub crypto.BoxPubKey
boxPriv crypto.BoxPrivKey
sigPub crypto.SigPubKey
sigPriv crypto.SigPrivKey
// We're going to keep our own copy of the provided config - that way we can
// guarantee that it will be covered by the mutex
config config.NodeConfig // Active config
configOld config.NodeConfig // Previous config
configMutex sync.RWMutex // Protects both config and configOld
// Core-specific config
boxPub crypto.BoxPubKey
boxPriv crypto.BoxPrivKey
sigPub crypto.SigPubKey
sigPriv crypto.SigPrivKey
// Modules
switchTable switchTable
peers peers
sessions sessions
@ -35,8 +48,9 @@ type Core struct {
multicast multicast
nodeinfo nodeinfo
tcp tcpInterface
log *log.Logger
ifceExpr []*regexp.Regexp // the zone of link-local IPv6 peers must match this
// Other bits
log *log.Logger
ifceExpr []*regexp.Regexp // the zone of link-local IPv6 peers must match this
}
func (c *Core) init(bpub *crypto.BoxPubKey,
@ -62,8 +76,26 @@ func (c *Core) init(bpub *crypto.BoxPubKey,
c.switchTable.init(c, c.sigPub) // TODO move before peers? before router?
}
// Get the current build name. This is usually injected if built from git,
// or returns "unknown" otherwise.
// UpdateConfig updates the configuration in Core and then signals the
// various module goroutines to reconfigure themselves if needed
func (c *Core) UpdateConfig(config *config.NodeConfig) {
c.configMutex.Lock()
c.configOld = c.config
c.config = *config
c.configMutex.Unlock()
c.admin.reconfigure <- true
c.searches.reconfigure <- true
c.dht.reconfigure <- true
c.sessions.reconfigure <- true
c.multicast.reconfigure <- true
c.peers.reconfigure <- true
c.router.reconfigure <- true
c.switchTable.reconfigure <- true
}
// GetBuildName gets the current build name. This is usually injected if built
// from git, or returns "unknown" otherwise.
func GetBuildName() string {
if buildName == "" {
return "unknown"
@ -96,6 +128,11 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
c.log.Println("Starting up...")
c.configMutex.Lock()
c.config = *nc
c.configOld = c.config
c.configMutex.Unlock()
var boxPub crypto.BoxPubKey
var boxPriv crypto.BoxPrivKey
var sigPub crypto.SigPubKey