4f4a855d82
Reviewed-on: https://go-review.googlesource.com/c/158019 gotools/: * Makefile.am (go_cmd_vet_files): Update for Go1.12beta2 release. (GOTOOLS_TEST_TIMEOUT): Increase to 600. (check-runtime): Export LD_LIBRARY_PATH before computing GOARCH and GOOS. (check-vet): Copy golang.org/x/tools into check-vet-dir. * Makefile.in: Regenerate. gcc/testsuite/: * go.go-torture/execute/names-1.go: Stop using debug/xcoff, which is no longer externally visible. From-SVN: r268084
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
// Copyright 2013 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 nacl js,wasm
|
|
|
|
package poll
|
|
|
|
import (
|
|
"syscall"
|
|
"time"
|
|
)
|
|
|
|
type pollDesc struct {
|
|
fd *FD
|
|
closing bool
|
|
}
|
|
|
|
func (pd *pollDesc) init(fd *FD) error { pd.fd = fd; return nil }
|
|
|
|
func (pd *pollDesc) close() {}
|
|
|
|
func (pd *pollDesc) evict() {
|
|
pd.closing = true
|
|
if pd.fd != nil {
|
|
syscall.StopIO(pd.fd.Sysfd)
|
|
}
|
|
}
|
|
|
|
func (pd *pollDesc) prepare(mode int, isFile bool) error {
|
|
if pd.closing {
|
|
return errClosing(isFile)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (pd *pollDesc) prepareRead(isFile bool) error { return pd.prepare('r', isFile) }
|
|
|
|
func (pd *pollDesc) prepareWrite(isFile bool) error { return pd.prepare('w', isFile) }
|
|
|
|
func (pd *pollDesc) wait(mode int, isFile bool) error {
|
|
if pd.closing {
|
|
return errClosing(isFile)
|
|
}
|
|
if isFile { // TODO(neelance): wasm: Use callbacks from JS to block until the read/write finished.
|
|
return nil
|
|
}
|
|
return ErrTimeout
|
|
}
|
|
|
|
func (pd *pollDesc) waitRead(isFile bool) error { return pd.wait('r', isFile) }
|
|
|
|
func (pd *pollDesc) waitWrite(isFile bool) error { return pd.wait('w', isFile) }
|
|
|
|
func (pd *pollDesc) waitCanceled(mode int) {}
|
|
|
|
func (pd *pollDesc) pollable() bool { return true }
|
|
|
|
// SetDeadline sets the read and write deadlines associated with fd.
|
|
func (fd *FD) SetDeadline(t time.Time) error {
|
|
return setDeadlineImpl(fd, t, 'r'+'w')
|
|
}
|
|
|
|
// SetReadDeadline sets the read deadline associated with fd.
|
|
func (fd *FD) SetReadDeadline(t time.Time) error {
|
|
return setDeadlineImpl(fd, t, 'r')
|
|
}
|
|
|
|
// SetWriteDeadline sets the write deadline associated with fd.
|
|
func (fd *FD) SetWriteDeadline(t time.Time) error {
|
|
return setDeadlineImpl(fd, t, 'w')
|
|
}
|
|
|
|
func setDeadlineImpl(fd *FD, t time.Time, mode int) error {
|
|
d := t.UnixNano()
|
|
if t.IsZero() {
|
|
d = 0
|
|
}
|
|
if err := fd.incref(); err != nil {
|
|
return err
|
|
}
|
|
switch mode {
|
|
case 'r':
|
|
syscall.SetReadDeadline(fd.Sysfd, d)
|
|
case 'w':
|
|
syscall.SetWriteDeadline(fd.Sysfd, d)
|
|
case 'r' + 'w':
|
|
syscall.SetReadDeadline(fd.Sysfd, d)
|
|
syscall.SetWriteDeadline(fd.Sysfd, d)
|
|
}
|
|
fd.decref()
|
|
return nil
|
|
}
|
|
|
|
// IsPollDescriptor reports whether fd is the descriptor being used by the poller.
|
|
// This is only used for testing.
|
|
func IsPollDescriptor(fd uintptr) bool {
|
|
return false
|
|
}
|