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rwcancel: use unix.Poll again but bump x/sys so it uses ppoll under the hood

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This reverts commit fcc601dbf0 but then
bumps go.mod.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2021-09-27 14:18:38 -06:00
parent fcc601dbf0
commit bb745b2ea3
5 changed files with 14 additions and 54 deletions
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17
rwcancel/poll_linux.go
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@@ -1,17 +0,0 @@
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
*/
package rwcancel
import "golang.org/x/sys/unix"
func poll(fds []unix.PollFd, timeout int) (n int, err error) {
var ts *unix.Timespec
if timeout >= 0 {
ts = new(unix.Timespec)
*ts = unix.NsecToTimespec(int64(timeout) * 1e6)
}
return unix.Ppoll(fds, ts, nil)
}

15
rwcancel/poll_unix.go
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@@ -1,15 +0,0 @@
//go:build !windows && !linux
// +build !windows,!linux
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
*/
package rwcancel
import "golang.org/x/sys/unix"
func poll(fds []unix.PollFd, timeout int) (n int, err error) {
return unix.Poll(fds, timeout)
}

4
rwcancel/rwcancel.go
View File

@@ -49,7 +49,7 @@ func (rw *RWCancel) ReadyRead() bool {
pollFds := []unix.PollFd{{Fd: int32(rw.fd), Events: unix.POLLIN}, {Fd: closeFd, Events: unix.POLLIN}}
var err error
for {
_, err = poll(pollFds, -1)
_, err = unix.Poll(pollFds, -1)
if err == nil || !RetryAfterError(err) {
break
}
@@ -68,7 +68,7 @@ func (rw *RWCancel) ReadyWrite() bool {
pollFds := []unix.PollFd{{Fd: int32(rw.fd), Events: unix.POLLOUT}, {Fd: closeFd, Events: unix.POLLOUT}}
var err error
for {
_, err = poll(pollFds, -1)
_, err = unix.Poll(pollFds, -1)
if err == nil || !RetryAfterError(err) {
break
}