Integrate en/decode for printing into array approach.

fuse/fuse.go

@@ -178,10 +178,10 @@ func (me *MountState) readRequest(req *request) os.Error {
 }
 
 func (me *MountState) discardRequest(req *request) {
-	endNs := time.Nanoseconds()
-	dt := endNs - req.startNs
-
 	if me.RecordStatistics {
+		endNs := time.Nanoseconds()
+		dt := endNs - req.startNs
+
 		me.statisticsMutex.Lock()
 		defer me.statisticsMutex.Unlock()
 

fuse/misc.go

@@ -14,6 +14,14 @@ import (
 	"io/ioutil"
 )
 
+
+func (code Status) String() string {
+	if code == OK {
+		return "OK"
+	}
+	return fmt.Sprintf("%d=%v", int(code), os.Errno(code))
+}
+
 // Make a temporary directory securely.
 func MakeTempDir() string {
 	nm, err := ioutil.TempDir("", "go-fuse")

fuse/opcode.go

@@ -3,24 +3,14 @@ package fuse
 import (
 	"bytes"
 	"fmt"
-	"os"
 	"unsafe"
 )
 
-func (code Status) String() string {
-	if code == OK {
-		return "OK"
-	}
-	return fmt.Sprintf("%d=%v", int(code), os.Errno(code))
-}
-
 func replyString(opcode Opcode, ptr unsafe.Pointer) string {
+	h := getHandler(opcode)
 	var val interface{}
-	switch opcode {
-	case FUSE_LOOKUP:
-		val = (*EntryOut)(ptr)
-	case FUSE_OPEN:
-		val = (*OpenOut)(ptr)
+	if h.DecodeOut != nil {
+		val = h.DecodeOut(ptr)
 	}
 	if val != nil {
 		return fmt.Sprintf("%v", val)
@@ -45,7 +35,6 @@ func doOpen(state *MountState, req *request) {
 	req.outData = unsafe.Pointer(out)
 }
 
-
 func doCreate(state *MountState, req *request) {
 	flags, handle, entry, status := state.fileSystem.Create(req.inHeader, (*CreateIn)(req.inData), req.filename())
 	req.status = status
@@ -234,10 +223,12 @@ func doRename(state *MountState, req *request) {
 type operationFunc func(*MountState, *request)
 
 type operationHandler struct {
-	Name     string
-	Func operationFunc
-	InputSize int
+	Name       string
+	Func       operationFunc
+	InputSize  int
 	OutputSize int
+	DecodeIn   func(unsafe.Pointer) interface{}
+	DecodeOut  func(unsafe.Pointer) interface{}
 }
 
 var operationHandlers []*operationHandler
@@ -394,4 +385,12 @@ func init() {
 	} {
 		operationHandlers[op].Func = v
 	}
+
+	operationHandlers[FUSE_LOOKUP].DecodeOut = func(ptr unsafe.Pointer) interface{} {
+		return (*EntryOut)(ptr)
+	}
+	operationHandlers[FUSE_OPEN].DecodeOut = func(ptr unsafe.Pointer) interface{} {
+		return (*EntryOut)(ptr)
+	}
+
 }