aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.8.1/libgo/go/net/fd_bsd.go
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.8.1/libgo/go/net/fd_bsd.go')
-rw-r--r--gcc-4.8.1/libgo/go/net/fd_bsd.go119
1 files changed, 0 insertions, 119 deletions
diff --git a/gcc-4.8.1/libgo/go/net/fd_bsd.go b/gcc-4.8.1/libgo/go/net/fd_bsd.go
deleted file mode 100644
index f5a55bb44..000000000
--- a/gcc-4.8.1/libgo/go/net/fd_bsd.go
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2009 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.
-
-// +build freebsd netbsd openbsd
-
-// Waiting for FDs via kqueue/kevent.
-
-package net
-
-import (
- "os"
- "syscall"
-)
-
-type pollster struct {
- kq int
- eventbuf [10]syscall.Kevent_t
- events []syscall.Kevent_t
-
- // An event buffer for AddFD/DelFD.
- // Must hold pollServer lock.
- kbuf [1]syscall.Kevent_t
-}
-
-func newpollster() (p *pollster, err error) {
- p = new(pollster)
- if p.kq, err = syscall.Kqueue(); err != nil {
- return nil, os.NewSyscallError("kqueue", err)
- }
- syscall.CloseOnExec(p.kq)
- p.events = p.eventbuf[0:0]
- return p, nil
-}
-
-func (p *pollster) AddFD(fd int, mode int, repeat bool) (bool, error) {
- // pollServer is locked.
-
- var kmode int
- if mode == 'r' {
- kmode = syscall.EVFILT_READ
- } else {
- kmode = syscall.EVFILT_WRITE
- }
- ev := &p.kbuf[0]
- // EV_ADD - add event to kqueue list
- // EV_ONESHOT - delete the event the first time it triggers
- flags := syscall.EV_ADD
- if !repeat {
- flags |= syscall.EV_ONESHOT
- }
- syscall.SetKevent(ev, fd, kmode, flags)
-
- n, err := syscall.Kevent(p.kq, p.kbuf[:], nil, nil)
- if err != nil {
- return false, os.NewSyscallError("kevent", err)
- }
- if n != 1 || (ev.Flags&syscall.EV_ERROR) == 0 || int(ev.Ident) != fd || int(ev.Filter) != kmode {
- return false, os.NewSyscallError("kqueue phase error", err)
- }
- if ev.Data != 0 {
- return false, syscall.Errno(int(ev.Data))
- }
- return false, nil
-}
-
-func (p *pollster) DelFD(fd int, mode int) bool {
- // pollServer is locked.
-
- var kmode int
- if mode == 'r' {
- kmode = syscall.EVFILT_READ
- } else {
- kmode = syscall.EVFILT_WRITE
- }
- ev := &p.kbuf[0]
- // EV_DELETE - delete event from kqueue list
- syscall.SetKevent(ev, fd, kmode, syscall.EV_DELETE)
- syscall.Kevent(p.kq, p.kbuf[:], nil, nil)
- return false
-}
-
-func (p *pollster) WaitFD(s *pollServer, nsec int64) (fd int, mode int, err error) {
- var t *syscall.Timespec
- for len(p.events) == 0 {
- if nsec > 0 {
- if t == nil {
- t = new(syscall.Timespec)
- }
- *t = syscall.NsecToTimespec(nsec)
- }
-
- s.Unlock()
- n, err := syscall.Kevent(p.kq, nil, p.eventbuf[:], t)
- s.Lock()
-
- if err != nil {
- if err == syscall.EINTR {
- continue
- }
- return -1, 0, os.NewSyscallError("kevent", err)
- }
- if n == 0 {
- return -1, 0, nil
- }
- p.events = p.eventbuf[:n]
- }
- ev := &p.events[0]
- p.events = p.events[1:]
- fd = int(ev.Ident)
- if ev.Filter == syscall.EVFILT_READ {
- mode = 'r'
- } else {
- mode = 'w'
- }
- return fd, mode, nil
-}
-
-func (p *pollster) Close() error { return os.NewSyscallError("close", syscall.Close(p.kq)) }