| // 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. | |
| package cgotest | |
| // extern void doAdd(int, int); | |
| import "C" | |
| import ( | |
| "sync" | |
| "testing" | |
| ) | |
| var sum struct { | |
| sync.Mutex | |
| i int | |
| } | |
| //export Add | |
| func Add(x int) { | |
| defer func() { | |
| recover() | |
| }() | |
| sum.Lock() | |
| sum.i += x | |
| sum.Unlock() | |
| var p *int | |
| *p = 2 | |
| } | |
| func testCthread(t *testing.T) { | |
| sum.i = 0 | |
| C.doAdd(10, 6) | |
| want := 10 * (10 - 1) / 2 * 6 | |
| if sum.i != want { | |
| t.Fatalf("sum=%d, want %d", sum.i, want) | |
| } | |
| } |