mirror of
https://github.com/golang/go
synced 2024-11-26 13:18:19 -07:00
fdf5efe43c
R=rsc APPROVED=rsc DELTA=314 (132 added, 2 deleted, 180 changed) OCL=34376 CL=34396
36 lines
703 B
Go
36 lines
703 B
Go
// 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.
|
|
|
|
package ogle
|
|
|
|
import (
|
|
"os";
|
|
"runtime";
|
|
)
|
|
|
|
// An aborter aborts the thread's current compututation, usually
|
|
// passing the error to a waiting thread.
|
|
type aborter interface {
|
|
Abort(err os.Error);
|
|
}
|
|
|
|
type ogleAborter chan os.Error;
|
|
|
|
func (a ogleAborter) Abort(err os.Error) {
|
|
a <- err;
|
|
runtime.Goexit();
|
|
}
|
|
|
|
// try executes a computation; if the computation Aborts, try returns
|
|
// the error passed to abort.
|
|
func try(f func(a aborter)) os.Error {
|
|
a := make(ogleAborter);
|
|
go func() {
|
|
f(a);
|
|
a <- nil;
|
|
}();
|
|
err := <-a;
|
|
return err;
|
|
}
|