| // Copyright 2015 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. |
| |
| package main |
| |
| import "C" |
| |
| import ( |
| "os" |
| "os/signal" |
| "syscall" |
| "time" |
| ) |
| |
| // The channel used to read SIGIO signals. |
| var sigioChan chan os.Signal |
| |
| // CatchSIGIO starts catching SIGIO signals. |
| //export CatchSIGIO |
| func CatchSIGIO() { |
| sigioChan = make(chan os.Signal, 1) |
| signal.Notify(sigioChan, syscall.SIGIO) |
| } |
| |
| // ResetSIGIO stops catching SIGIO signals. |
| //export ResetSIGIO |
| func ResetSIGIO() { |
| signal.Reset(syscall.SIGIO) |
| } |
| |
| // SawSIGIO returns whether we saw a SIGIO within a brief pause. |
| //export SawSIGIO |
| func SawSIGIO() C.int { |
| select { |
| case <-sigioChan: |
| return 1 |
| case <-time.After(100 * time.Millisecond): |
| return 0 |
| } |
| } |
| |
| func main() { |
| } |
