From e0334ab798b573b0dc138d0d91c32a010e1490c0 Mon Sep 17 00:00:00 2001
From: Vinu Rajashekhar <vinutheraj@gmail.com>
Date: Mon, 28 Jun 2010 13:58:56 -0700
Subject: [PATCH] Move the functions, newPollServer and Run, from fd.go to a
 new source file.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/1670046
---
 src/pkg/net/Makefile         |  1 +
 src/pkg/net/fd.go            | 75 -------------------------------
 src/pkg/net/newpollserver.go | 87 ++++++++++++++++++++++++++++++++++++
 3 files changed, 88 insertions(+), 75 deletions(-)
 create mode 100644 src/pkg/net/newpollserver.go

diff --git a/src/pkg/net/Makefile b/src/pkg/net/Makefile
index 466385766b5..7d8eadf241b 100644
--- a/src/pkg/net/Makefile
+++ b/src/pkg/net/Makefile
@@ -10,6 +10,7 @@ GOFILES=\
 	dnsclient.go\
 	dnsconfig.go\
 	dnsmsg.go\
+	newpollserver.go\
 	fd.go\
 	fd_$(GOOS).go\
 	hosts.go\
diff --git a/src/pkg/net/fd.go b/src/pkg/net/fd.go
index 2f5930bcc1f..b3713781705 100644
--- a/src/pkg/net/fd.go
+++ b/src/pkg/net/fd.go
@@ -93,37 +93,6 @@ type pollServer struct {
 	deadline int64     // next deadline (nsec since 1970)
 }
 
-func newPollServer() (s *pollServer, err os.Error) {
-	s = new(pollServer)
-	s.cr = make(chan *netFD, 1)
-	s.cw = make(chan *netFD, 1)
-	if s.pr, s.pw, err = os.Pipe(); err != nil {
-		return nil, err
-	}
-	var e int
-	if e = syscall.SetNonblock(s.pr.Fd(), true); e != 0 {
-	Errno:
-		err = &os.PathError{"setnonblock", s.pr.Name(), os.Errno(e)}
-	Error:
-		s.pr.Close()
-		s.pw.Close()
-		return nil, err
-	}
-	if e = syscall.SetNonblock(s.pw.Fd(), true); e != 0 {
-		goto Errno
-	}
-	if s.poll, err = newpollster(); err != nil {
-		goto Error
-	}
-	if err = s.poll.AddFD(s.pr.Fd(), 'r', true); err != nil {
-		s.poll.Close()
-		goto Error
-	}
-	s.pending = make(map[int]*netFD)
-	go s.Run()
-	return s, nil
-}
-
 func (s *pollServer) AddFD(fd *netFD, mode int) {
 	intfd := fd.sysfd
 	if intfd < 0 {
@@ -225,50 +194,6 @@ func (s *pollServer) CheckDeadlines() {
 	s.deadline = next_deadline
 }
 
-func (s *pollServer) Run() {
-	var scratch [100]byte
-	for {
-		var t = s.deadline
-		if t > 0 {
-			t = t - s.Now()
-			if t <= 0 {
-				s.CheckDeadlines()
-				continue
-			}
-		}
-		fd, mode, err := s.poll.WaitFD(t)
-		if err != nil {
-			print("pollServer WaitFD: ", err.String(), "\n")
-			return
-		}
-		if fd < 0 {
-			// Timeout happened.
-			s.CheckDeadlines()
-			continue
-		}
-		if fd == s.pr.Fd() {
-			// Drain our wakeup pipe.
-			for nn, _ := s.pr.Read(scratch[0:]); nn > 0; {
-				nn, _ = s.pr.Read(scratch[0:])
-			}
-			// Read from channels
-			for fd, ok := <-s.cr; ok; fd, ok = <-s.cr {
-				s.AddFD(fd, 'r')
-			}
-			for fd, ok := <-s.cw; ok; fd, ok = <-s.cw {
-				s.AddFD(fd, 'w')
-			}
-		} else {
-			netfd := s.LookupFD(fd, mode)
-			if netfd == nil {
-				print("pollServer: unexpected wakeup for fd=", netfd, " mode=", string(mode), "\n")
-				continue
-			}
-			s.WakeFD(netfd, mode)
-		}
-	}
-}
-
 var wakeupbuf [1]byte
 
 func (s *pollServer) Wakeup() { s.pw.Write(wakeupbuf[0:]) }
diff --git a/src/pkg/net/newpollserver.go b/src/pkg/net/newpollserver.go
new file mode 100644
index 00000000000..67355ae9a7f
--- /dev/null
+++ b/src/pkg/net/newpollserver.go
@@ -0,0 +1,87 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// TODO(rsc): All the prints in this file should go to standard error.
+
+package net
+
+import (
+	"os"
+	"syscall"
+)
+
+func newPollServer() (s *pollServer, err os.Error) {
+	s = new(pollServer)
+	s.cr = make(chan *netFD, 1)
+	s.cw = make(chan *netFD, 1)
+	if s.pr, s.pw, err = os.Pipe(); err != nil {
+		return nil, err
+	}
+	var e int
+	if e = syscall.SetNonblock(s.pr.Fd(), true); e != 0 {
+	Errno:
+		err = &os.PathError{"setnonblock", s.pr.Name(), os.Errno(e)}
+	Error:
+		s.pr.Close()
+		s.pw.Close()
+		return nil, err
+	}
+	if e = syscall.SetNonblock(s.pw.Fd(), true); e != 0 {
+		goto Errno
+	}
+	if s.poll, err = newpollster(); err != nil {
+		goto Error
+	}
+	if err = s.poll.AddFD(s.pr.Fd(), 'r', true); err != nil {
+		s.poll.Close()
+		goto Error
+	}
+	s.pending = make(map[int]*netFD)
+	go s.Run()
+	return s, nil
+}
+
+func (s *pollServer) Run() {
+	var scratch [100]byte
+	for {
+		var t = s.deadline
+		if t > 0 {
+			t = t - s.Now()
+			if t <= 0 {
+				s.CheckDeadlines()
+				continue
+			}
+		}
+		fd, mode, err := s.poll.WaitFD(t)
+		if err != nil {
+			print("pollServer WaitFD: ", err.String(), "\n")
+			return
+		}
+		if fd < 0 {
+			// Timeout happened.
+			s.CheckDeadlines()
+			continue
+		}
+		if fd == s.pr.Fd() {
+			// Drain our wakeup pipe.
+			for nn, _ := s.pr.Read(scratch[0:]); nn > 0; {
+				nn, _ = s.pr.Read(scratch[0:])
+			}
+			// Read from channels
+			for fd, ok := <-s.cr; ok; fd, ok = <-s.cr {
+				s.AddFD(fd, 'r')
+			}
+			for fd, ok := <-s.cw; ok; fd, ok = <-s.cw {
+				s.AddFD(fd, 'w')
+			}
+		} else {
+			netfd := s.LookupFD(fd, mode)
+			if netfd == nil {
+				print("pollServer: unexpected wakeup for fd=", netfd, " mode=", string(mode), "\n")
+				continue
+			}
+			s.WakeFD(netfd, mode)
+		}
+	}
+}