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log: initialize subloggers w/ build.LogWriter

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and build.NewSubLogger
This commit is contained in:
Conner Fromknecht 2018-09-20 03:28:35 -07:00
parent 59b459674d
commit bfcda6e205
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1 changed files with 24 additions and 34 deletions
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58
log.go
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@ -12,8 +12,10 @@ import (
"github.com/btcsuite/btclog"
"github.com/jrick/logrotate/rotator"
"github.com/lightninglabs/neutrino"
"github.com/lightningnetwork/lightning-onion"
"github.com/lightningnetwork/lnd/autopilot"
"github.com/lightningnetwork/lnd/build"
"github.com/lightningnetwork/lnd/chainntnfs"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/contractcourt"
@ -24,16 +26,6 @@ import (
"github.com/lightningnetwork/lnd/signal"
)
// logWriter implements an io.Writer that outputs to both standard output and
// the write-end pipe of an initialized log rotator.
type logWriter struct{}
func (logWriter) Write(p []byte) (n int, err error) {
os.Stdout.Write(p)
logRotatorPipe.Write(p)
return len(p), nil
}
// Loggers per subsystem. A single backend logger is created and all subsystem
// loggers created from it will write to the backend. When adding new
// subsystems, add the subsystem logger variable here and to the
@ -43,38 +35,36 @@ func (logWriter) Write(p []byte) (n int, err error) {
// log file. This must be performed early during application startup by
// calling initLogRotator.
var (
logWriter = &build.LogWriter{}
// backendLog is the logging backend used to create all subsystem
// loggers. The backend must not be used before the log rotator has
// been initialized, or data races and/or nil pointer dereferences will
// occur.
backendLog = btclog.NewBackend(logWriter{})
backendLog = btclog.NewBackend(logWriter)
// logRotator is one of the logging outputs. It should be closed on
// application shutdown.
logRotator *rotator.Rotator
// logRotatorPipe is the write-end pipe for writing to the log rotator.
// It is written to by the Write method of the logWriter type.
logRotatorPipe *io.PipeWriter
ltndLog = backendLog.Logger("LTND")
lnwlLog = backendLog.Logger("LNWL")
peerLog = backendLog.Logger("PEER")
discLog = backendLog.Logger("DISC")
rpcsLog = backendLog.Logger("RPCS")
srvrLog = backendLog.Logger("SRVR")
ntfnLog = backendLog.Logger("NTFN")
chdbLog = backendLog.Logger("CHDB")
fndgLog = backendLog.Logger("FNDG")
hswcLog = backendLog.Logger("HSWC")
utxnLog = backendLog.Logger("UTXN")
brarLog = backendLog.Logger("BRAR")
cmgrLog = backendLog.Logger("CMGR")
crtrLog = backendLog.Logger("CRTR")
btcnLog = backendLog.Logger("BTCN")
atplLog = backendLog.Logger("ATPL")
cnctLog = backendLog.Logger("CNCT")
sphxLog = backendLog.Logger("SPHX")
ltndLog = build.NewSubLogger("LTND", backendLog.Logger)
lnwlLog = build.NewSubLogger("LNWL", backendLog.Logger)
peerLog = build.NewSubLogger("PEER", backendLog.Logger)
discLog = build.NewSubLogger("DISC", backendLog.Logger)
rpcsLog = build.NewSubLogger("RPCS", backendLog.Logger)
srvrLog = build.NewSubLogger("SRVR", backendLog.Logger)
ntfnLog = build.NewSubLogger("NTFN", backendLog.Logger)
chdbLog = build.NewSubLogger("CHDB", backendLog.Logger)
fndgLog = build.NewSubLogger("FNDG", backendLog.Logger)
hswcLog = build.NewSubLogger("HSWC", backendLog.Logger)
utxnLog = build.NewSubLogger("UTXN", backendLog.Logger)
brarLog = build.NewSubLogger("BRAR", backendLog.Logger)
cmgrLog = build.NewSubLogger("CMGR", backendLog.Logger)
crtrLog = build.NewSubLogger("CRTR", backendLog.Logger)
btcnLog = build.NewSubLogger("BTCN", backendLog.Logger)
atplLog = build.NewSubLogger("ATPL", backendLog.Logger)
cnctLog = build.NewSubLogger("CNCT", backendLog.Logger)
sphxLog = build.NewSubLogger("SPHX", backendLog.Logger)
)
// Initialize package-global logger variables.
@ -134,8 +124,8 @@ func initLogRotator(logFile string, MaxLogFileSize int, MaxLogFiles int) {
pr, pw := io.Pipe()
go r.Run(pr)
logWriter.RotatorPipe = pw
logRotator = r
logRotatorPipe = pw
}
// setLogLevel sets the logging level for provided subsystem. Invalid