45 lines
902 B
Go
45 lines
902 B
Go
// Copyright 2023 The Libc Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build unix
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// +build unix
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package libc // import "modernc.org/libc"
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import (
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"os"
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"path/filepath"
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"testing"
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"golang.org/x/sys/unix"
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)
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// https://gitlab.com/cznic/libc/-/issues/29
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func TestIssue29(t *testing.T) {
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dir := t.TempDir()
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fn := filepath.Join(dir, "test")
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if err := os.WriteFile(fn, make([]byte, 1<<20), 0644); err != nil {
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t.Fatal(err)
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}
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f, err := os.OpenFile(fn, os.O_RDWR, 0644)
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if err != nil {
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t.Fatal(err)
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}
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defer f.Close()
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tls := NewTLS()
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defer tls.Close()
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d := Xmmap(tls, 0, 4096, unix.PROT_READ|unix.PROT_WRITE, unix.MAP_SHARED, int32(f.Fd()), 0)
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if d == 0 {
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t.Fatal("mmap failed")
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}
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t.Logf("%#0x", d)
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if rc := Xmunmap(tls, d, 4096); rc != 0 {
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t.Fatalf("munmap failed: %v", rc)
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}
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}
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