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1 // Copyright 2014 The Go Authors. All rights reserved.
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2 // Use of this source code is governed by a BSD-style
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3 // license that can be found in the LICENSE file.
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4
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5 package cgotest
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6
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7 //void testHandleLeaks();
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8 import "C"
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9
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10 import (
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11 "syscall"
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12 "testing"
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13 "unsafe"
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14 )
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15
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16 var issue8517counter int
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17
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18 var (
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19 kernel32 = syscall.MustLoadDLL("kernel32.dll")
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20 getProcessHandleCount = kernel32.MustFindProc("GetProcessHandleCount")
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21 )
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22
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23 func processHandleCount(t *testing.T) int {
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24 const current_process = ^uintptr(0)
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25 var c uint32
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26 r, _, err := getProcessHandleCount.Call(current_process, uintptr(unsafe.Pointer(&c)))
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27 if r == 0 {
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28 t.Fatal(err)
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29 }
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30 return int(c)
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31 }
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32
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33 func test8517(t *testing.T) {
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34 c1 := processHandleCount(t)
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35 C.testHandleLeaks()
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36 c2 := processHandleCount(t)
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37 if c1+issue8517counter <= c2 {
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38 t.Fatalf("too many handles leaked: issue8517counter=%v c1=%v c2=%v", issue8517counter, c1, c2)
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39 }
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40 }
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41
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42 //export testHandleLeaksCallback
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43 func testHandleLeaksCallback() {
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44 issue8517counter++
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45 }
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