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go/misc/cgo/test/cthread.go
Emmanuel Odeke 53fd522c0d all: make copyright headers consistent with one space after period
Follows suit with https://go-review.googlesource.com/#/c/20111.

Generated by running
$ grep -R 'Go Authors.  All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go
Authors.  All/Go Authors. All/g' $F;done

The code in cmd/internal/unvendor wasn't changed.

Fixes #15213

Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f
Reviewed-on: https://go-review.googlesource.com/21819
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-05-02 13:43:18 +00:00

41 lines
576 B
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.
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)
}
}