Logging to opened file descriptor

[nncp.git] / src / log.go

diff --git a/src/log.go b/src/log.go
index 5c98bd7e14916427c236553fea506f39f9668d61..9a8d2e7505b7fc4b5eecdeb77d4d2b49dbab12dd 100644 (file)
--- a/src/log.go
+++ b/src/log.go
@@ -27,6 +27,10 @@ import (
        "golang.org/x/sys/unix"
 )
 
+const LogFdPrefix = "FD:"
+
+var LogFd *os.File
+
 type LE struct {
        K string
        V interface{}
@@ -43,6 +47,8 @@ func (les LEs) Rec() string {
                switch v := le.V.(type) {
                case int, int8, uint8, int64, uint64:
                        val = fmt.Sprintf("%d", v)
+               case bool:
+                       val = fmt.Sprintf("%v", v)
                default:
                        val = fmt.Sprintf("%s", v)
                }
@@ -62,6 +68,10 @@ func (les LEs) Rec() string {
 }
 
 func (ctx *Ctx) Log(rec string) {
+       if LogFd != nil {
+               LogFd.WriteString(rec)
+               return
+       }
        fdLock, err := os.OpenFile(
                ctx.LogPath+".lock",
                os.O_CREATE|os.O_WRONLY,
@@ -92,22 +102,18 @@ func (ctx *Ctx) Log(rec string) {
        fd.Close()          // #nosec G104
 }
 
-func (ctx *Ctx) LogD(who string, les LEs, msg string) {
+func (ctx *Ctx) LogD(who string, les LEs, msg func(LEs) string) {
        if !ctx.Debug {
                return
        }
        les = append(LEs{{"Debug", true}, {"Who", who}}, les...)
-       if msg != "" {
-               les = append(les, LE{"Msg", msg})
-       }
+       les = append(les, LE{"Msg", msg(les)})
        fmt.Fprint(os.Stderr, les.Rec())
 }
 
-func (ctx *Ctx) LogI(who string, les LEs, msg string) {
+func (ctx *Ctx) LogI(who string, les LEs, msg func(LEs) string) {
        les = append(LEs{{"Who", who}}, les...)
-       if msg != "" {
-               les = append(les, LE{"Msg", msg})
-       }
+       les = append(les, LE{"Msg", msg(les)})
        rec := les.Rec()
        if !ctx.Quiet {
                fmt.Fprintln(os.Stderr, ctx.HumanizeRec(rec))
@@ -115,11 +121,9 @@ func (ctx *Ctx) LogI(who string, les LEs, msg string) {
        ctx.Log(rec)
 }
 
-func (ctx *Ctx) LogE(who string, les LEs, err error, msg string) {
+func (ctx *Ctx) LogE(who string, les LEs, err error, msg func(LEs) string) {
        les = append(LEs{{"Err", err.Error()}, {"Who", who}}, les...)
-       if msg != "" {
-               les = append(les, LE{"Msg", msg})
-       }
+       les = append(les, LE{"Msg", msg(les)})
        rec := les.Rec()
        if !ctx.Quiet {
                fmt.Fprintln(os.Stderr, ctx.HumanizeRec(rec))