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+ /*
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+ * Copyright (c) 2019, Intel Corporation
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ *
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+ * * Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ *
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+ * * Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in
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+ * the documentation and/or other materials provided with the
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+ * distribution.
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+ *
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+ * * Neither the name of Intel Corporation nor the names of its
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+ * contributors may be used to endorse or promote products derived
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+ * from this software without specific prior written permission.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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/* using 4k of pmem for this example */
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#define PMEM_LEN 4096
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+ /* define the filename for our example pmem region */
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#define PATH "/pmem-fs/myfile"
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int
@@ -34,12 +66,12 @@ main(int argc, char *argv[])
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/* store a string to the persistent memory */
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strcpy (pmemaddr , "hello, persistent memory" );
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- /* flush above strcpy to persistence */
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+ /* flush our string to persistence */
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if (is_pmem )
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pmem_persist (pmemaddr , mapped_len );
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else
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pmem_msync (pmemaddr , mapped_len );
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- /* Delete the mappings. The region is also */
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+ /* Delete the mappings. */
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pmem_unmap (pmemaddr , mapped_len );
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}
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