FsyncErrorTest.Msync
parent
366567acf6
commit
32da7d5015
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@ -914,3 +914,32 @@ func (t *FsyncErrorTest) Fdatasync() {
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ExpectThat(err, Error(HasSubstr("no such file")))
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}
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func (t *FsyncErrorTest) Msync() {
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var err error
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// On OS X, msync does not cause SyncFile.
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if isDarwin {
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return
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}
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// Open the file.
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t.f1, err = os.OpenFile(path.Join(t.Dir, "foo"), os.O_RDWR, 0)
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AssertEq(nil, err)
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// mmap the file.
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data, err := syscall.Mmap(
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int(t.f1.Fd()), 0, 4,
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syscall.PROT_READ|syscall.PROT_WRITE,
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syscall.MAP_SHARED)
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AssertEq(nil, err)
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// msync the mapping.
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err = msync(data)
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ExpectThat(err, Error(HasSubstr("no such file")))
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// Unmap.
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err = syscall.Munmap(data)
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AssertEq(nil, err)
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}
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